SN54AHC123A, SN74AHC123A
DUAL RETRIGGERABLE MONOSTABLE MULTIVIBRATORS
SCLS352G JULY 1997 REVISED APRIL 2003
1
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
D
Operating Range 2-V to 5.5-V V
CC
D
Schmitt-Trigger Circuitry On A, B, and CLR
Inputs for Slow Input Transition Rates
D
Edge Triggered From Active-High or
Active-Low Gated Logic Inputs
D
Retriggerable for Very Long Output Pulses
D
Overriding Clear Terminates Output Pulse
D
Glitch-Free Power-Up Reset On Outputs
D
Latch-Up Performance Exceeds 100 mA Per
JESD 78, Class II
D
ESD Protection Exceeds JESD 22
2000-V Human-Body Model (A114-A)
200-V Machine Model (A115-A)
1000-V Charged-Device Model (C101)
description/ordering information
The 'AHC123A devices are dual retriggerable
monostable multivibrators designed for 2-V to
5.5-V V
CC
operation.
These edge-triggered multivibrators feature
output pulse-duration control by three methods. In
the first method, the A input is low, and the B input
goes high. In the second method, the B input is
high, and the A input goes low. In the third method,
the A input is low, the B input is high, and the clear
(CLR) input goes high.
ORDERING INFORMATION
TA
PACKAGE
ORDERABLE
PART NUMBER
TOP-SIDE
MARKING
PDIP N
Tube
SN74AHC123AN
SN74AHC123AN
SOIC
D
Tube
SN74AHC123AD
AHC123A
40
C to 85
C
SOIC D
Tape and reel
SN74AHC123ADR
AHC123A
40
C to 85
C
SSOP DB
Tape and reel
SN74AHC123ADBR
HA123A
TSSOP PW
Tape and reel
SN74AHC123APWR
HA123A
TVSOP DGV
Tape and reel
SN74AHC123ADGVR
HA123A
CDIP J
Tube
SNJ54AHC123AJ
SNJ54AHC123AJ
55
C to 125
C
CFP W
Tube
SNJ54AHC123AW
SNJ54AHC123AW
LCCC FK
Tube
SNJ54AHC123AFK
SNJ54AHC123AFK
Package drawings, standard packing quantities, thermal data, symbolization, and PCB design guidelines are
available at www.ti.com/sc/package.
Copyright
2003, Texas Instruments Incorporated
Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of
Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.
SN54AHC123A . . . J OR W PACKAGE
SN74AHC123A . . . D, DB, DGV, N, OR PW PACKAGE
(TOP VIEW)
SN54AHC123A . . . FK PACKAGE
(TOP VIEW)
1
2
3
4
5
6
7
8
16
15
14
13
12
11
10
9
1A
1B
1CLR
1Q
2Q
2C
ext
2R
ext
/C
ext
GND
V
CC
1R
ext
/C
ext
1C
ext
1Q
2Q
2CLR
2B
2A
3
2
1 20 19
9 10 11 12 13
4
5
6
7
8
18
17
16
15
14
1C
ext
1Q
NC
2Q
2CLR
1CLR
1Q
NC
2Q
2C
ext
1B
1A
NC
2A
2B
V
1R
2R
GND
NC
CC
NC No internal connection
ext
/C
ext
ext
/C
ext
PRODUCTION DATA information is current as of publication date.
Products conform to specifications per the terms of Texas Instruments
standard warranty. Production processing does not necessarily include
testing of all parameters.
On products compliant to MIL-PRF-38535, all parameters are tested
unless otherwise noted. On all other products, production
processing does not necessarily include testing of all parameters.
SN54AHC123A, SN74AHC123A
DUAL RETRIGGERABLE MONOSTABLE MULTIVIBRATORS
SCLS352G JULY 1997 REVISED APRIL 2003
2
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
description/ordering information (continued)
The output pulse duration is programmed by selecting external resistance and capacitance values. The external
timing capacitor must be connected between C
ext
and R
ext
/C
ext
(positive) and an external resistor connected
between R
ext
/C
ext
and V
CC
. To obtain variable pulse durations, connect an external variable resistance between
R
ext
/C
ext
and V
CC
. The output pulse duration also can be reduced by taking CLR low.
Pulse triggering occurs at a particular voltage level and is not directly related to the transition time of the input
pulse. The A, B, and CLR inputs have Schmitt triggers with sufficient hysteresis to handle slow input transition
rates with jitter-free triggering at the outputs.
Once triggered, the basic pulse duration can be extended by retriggering the gated low-level-active (A) or
high-level-active (B) input. Pulse duration can be reduced by taking CLR low. CLR input can be used to override
A or B inputs. The input/output timing diagram illustrates pulse control by retriggering the inputs and early
clearing.
The variance in output pulse duration from device to device typically is less than
0.5% for given external timing
components. An example of this distribution for the 'AHC123A is shown in Figure 10. Variations in output pulse
duration versus supply voltage and temperature are shown in Figure 6.
During power up, Q outputs are in the low state, and Q outputs are in the high state. The outputs are glitch free,
without applying a reset pulse.
For additional application information on multivibrators, see the application report Designing With the
SN74AHC123A and SN74AHCT123A, literature number SCLA014.
FUNCTION TABLE
(each multivibrator)
INPUTS
OUTPUTS
CLR
A
B
Q
Q
L
X
X
L
H
X
H
X
L
H
X
X
L
L
H
H
L
H
#
H
L
H
These outputs are based on the
assumption that the indicated
steady-state conditions at the A and
B inputs have been set up long enough to
complete any pulse started before the
setup.
SN54AHC123A, SN74AHC123A
DUAL RETRIGGERABLE MONOSTABLE MULTIVIBRATORS
SCLS352G JULY 1997 REVISED APRIL 2003
3
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
logic diagram, each multivibrator (positive logic)
CLR
Cext
Rext/Cext
R
B
A
Q
Q
input/output timing diagram
A
B
CLR
Q
Q
tw
tw
tw + trr
trr
Rext/Cext
SN54AHC123A, SN74AHC123A
DUAL RETRIGGERABLE MONOSTABLE MULTIVIBRATORS
SCLS352G JULY 1997 REVISED APRIL 2003
4
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
absolute maximum ratings over operating free-air temperature (unless otherwise noted)
Supply voltage range, V
CC
(see Note 1)
0.5 V to 7 V
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Input voltage range, V
I
(see Note 2)
0.5 V to 7 V
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Output voltage range in high or low state, V
O
(see Note 1)
0.5 V to V
CC
+ 0.5 V
. . . . . . . . . . . . . . . . . . . . . . .
Output voltage range in power-off state, V
O
(see Note 1)
0.5 V to 7 V
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Input clamp current, I
IK
(V
I
< 0)
20 mA
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Output clamp current, I
OK
(V
O
< 0 or V
O
> V
CC
)
20 mA
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Continuous output current, I
O
(V
O
= 0 to V
CC
)
25 mA
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Continuous current through V
CC
or GND
50 mA
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Package thermal impedance,
JA
(see Note 3): D package
73
C/W
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
DB package
82
C/W
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
DGV package
120
C/W
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
N package
67
C/W
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
PW package
108
C/W
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Storage temperature range, T
stg
65
C to 150
C
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Stresses beyond those listed under "absolute maximum ratings" may cause permanent damage to the device. These are stress ratings only, and
functional operation of the device at these or any other conditions beyond those indicated under "recommended operating conditions" is not
implied. Exposure to absolute-maximum-rated conditions for extended periods may affect device reliability.
NOTES:
1. Voltage values are with respect to the network ground terminal.
2. The input and output voltage ratings may be exceeded if the input and output current ratings are observed.
3. The package thermal impedance is calculated in accordance with JESD 51-7.
recommended operating conditions (see Note 4)
SN54AHC123A
SN74AHC123A
UNIT
MIN
MAX
MIN
MAX
UNIT
VCC
Supply voltage
2
5.5
2
5.5
V
VCC = 2 V
1.5
1.5
VIH
High-level input voltage
VCC = 3 V
2.1
2.1
V
VCC = 5.5 V
3.85
3.85
VCC = 2 V
0.5
0.5
VIL
Low-level input voltage
VCC = 3 V
0.9
0.9
V
VCC = 5.5 V
1.65
1.65
VI
Input voltage
0
5.5
0
5.5
V
VO
Output voltage
0
VCC
0
VCC
V
VCC = 2 V
50
50
m
A
IOH
High-level output current
VCC = 3.3 V
0.3 V
4
4
mA
VCC = 5 V
0.5 V
8
8
mA
VCC = 2 V
50
50
m
A
IOL
Low-level output current
VCC = 3.3 V
0.3 V
4
4
mA
VCC = 5 V
0.5 V
8
8
mA
R
t
External timing resistance
VCC = 2 V
5k
5k
Rext
External timing resistance
VCC > 3 V
1k
1k
t/
VCC
Power-up ramp rate
1
1
ms/V
TA
Operating free-air temperature
55
125
40
85
C
NOTE 4: Unused Rext/Cext terminals should be left unconnected. All remaining unused inputs of the device must be held at VCC or GND to ensure
proper device operation. Refer to the TI application report, Implications of Slow or Floating CMOS Inputs, literature number SCBA004.
SN54AHC123A, SN74AHC123A
DUAL RETRIGGERABLE MONOSTABLE MULTIVIBRATORS
SCLS352G JULY 1997 REVISED APRIL 2003
5
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
electrical characteristics over recommended operating free-air temperature range (unless
otherwise noted)
PARAMETER
TEST CONDITIONS
VCC
TA = 25
C
SN54AHC123A
SN74AHC123A
UNIT
PARAMETER
TEST CONDITIONS
VCC
MIN
TYP
MAX
MIN
MAX
MIN
MAX
UNIT
2 V
1.9
2
1.9
1.9
IOH = 50
m
A
3 V
2.9
3
2.9
2.9
VOH
4.5 V
4.4
4.5
4.4
4.4
V
IOH = 4 mA
3 V
2.58
2.48
2.48
IOH = 8 mA
4.5 V
3.94
3.8
3.8
2 V
0.1
0.1
0.1
IOL = 50
m
A
3 V
0.1
0.1
0.1
VOL
4.5 V
0.1
0.1
0.1
V
IOL = 4 mA
3 V
0.36
0.5
0.44
IOL = 8 mA
4.5 V
0.36
0.5
0.44
II
Rext/Cext
VI = VCC or GND
5.5 V
0.25
2.5
2.5
m
A
II
A, B, and CLR
VI = VCC or GND
0 V to 5.5 V
0.1
1*
1
m
A
ICC
Quiescent
VI = VCC or GND, IO = 0
5.5 V
4
40
40
m
A
A ti
t t
V
V
GND
3 V
160
250
280
280
ICC
Active state
(per circuit)
VI = VCC or GND,
Rext/Cext = 0 5 VCC
4.5 V
280
500
650
650
m
A
( er circuit)
Rext/Cext = 0.5 VCC
5.5 V
360
750
975
975
Ci
VI = VCC or GND
5 V
1.9
10
10
pF
* On products compliant to MIL-PRF-38535, this parameter is not production tested at VCC = 0 V.
This test is performed with the terminal in the off-state condition.
timing requirements over recommended operating free-air temperature range, V
CC
= 3.3 V
0.3 V
(unless otherwise noted) (see Figure 1)
TEST CONDITIONS
TA = 25
C
SN54AHC123A
SN74AHC123A
UNIT
TEST CONDITIONS
MIN
TYP
MAX
MIN
MAX
MIN
MAX
UNIT
t
Pulse
CLR
5
5
5
ns
tw
duration
A or B trigger
5
5
5
ns
t
Pulse retrigger time
Rext = 1 k
, Cext = 100 pF
76
ns
trr
Pulse retrigger time
Rext = 1 k
, Cext = 0.01
m
F
1.8
m
s
See retriggering data in the application information section.
timing requirements over recommended operating free-air temperature range, V
CC
= 5 V
0.5 V
(unless otherwise noted) (see Figure 1)
TEST CONDITIONS
TA = 25
C
SN54AHC123A
SN74AHC123A
UNIT
TEST CONDITIONS
MIN
TYP
MAX
MIN
MAX
MIN
MAX
UNIT
t
Pulse
CLR
5
5
5
ns
tw
duration
A or B trigger
5
5
5
ns
t
Pulse retrigger time
Rext = 1 k
, Cext = 100 pF
59
ns
trr
Pulse retrigger time
Rext = 1 k
, Cext = 0.01
m
F
1.5
m
s
See retriggering data in the application information section.
SN54AHC123A, SN74AHC123A
DUAL RETRIGGERABLE MONOSTABLE MULTIVIBRATORS
SCLS352G JULY 1997 REVISED APRIL 2003
6
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
switching characteristics over recommended operating free-air temperature range,
V
CC
= 3.3 V
0.3 V (unless otherwise noted) (see Figure 1)
PARAMETER
FROM
TO
TEST
TA = 25
C
SN54AHC123A
SN74AHC123A
UNIT
PARAMETER
(INPUT)
(OUTPUT)
CONDITIONS
MIN
TYP
MAX
MIN
MAX
MIN
MAX
UNIT
tPLH
A
B
Q
Q
CL = 15 pF
9.5*
20.6*
1*
24*
1
24
ns
tPHL
A or B
Q or Q
CL = 15 pF
10.2*
20.6*
1*
24*
1
24
ns
tPLH
CLR
Q or Q
CL = 15 pF
7.5*
15.8*
1*
18.5*
1
18.5
ns
tPHL
CLR
Q or Q
CL = 15 pF
9.3*
15.8*
1*
18.5*
1
18.5
ns
tPLH
CLR t i
Q
Q
CL = 15 pF
10*
22.4*
1*
26*
1
26
ns
tPHL
CLR trigger
Q or Q
CL = 15 pF
10.6*
22.4*
1*
26*
1
26
ns
tPLH
A
B
Q
Q
CL = 50 pF
10.5
24.1
1
27.5
1
27.5
ns
tPHL
A or B
Q or Q
CL = 50 pF
11.8
24.1
1
27.5
1
27.5
ns
tPLH
CLR
Q
Q
CL = 50 pF
8.9
19.3
1
22
1
22
ns
tPHL
CLR
Q or Q
CL = 50 pF
10.5
19.3
1
22
1
22
ns
tPLH
CLR t i
Q
Q
CL = 50 pF
11
25.9
1
29.5
1
29.5
ns
tPHL
CLR trigger
Q or Q
CL = 50 pF
12.3
25.9
1
29.5
1
29.5
ns
CL = 50 pF,
Cext = 28 pF,
Rext = 2 k
182
240
300
300
ns
tw
Q or Q
CL = 50 pF,
Cext = 0.01
F,
Rext = 10 k
90
100
110
90
110
90
110
m
s
CL = 50 pF,
Cext = 0.1
F,
Rext = 10 k
0.9
1
1.1
0.9
1.1
0.9
1.1
ms
tw
1
%
* On products compliant to MIL-PRF-38535, this parameter is not production tested.
tw = Pulse duration at Q and Q outputs
tw = Output pulse-duration variation (Q and Q) between circuits in same package
SN54AHC123A, SN74AHC123A
DUAL RETRIGGERABLE MONOSTABLE MULTIVIBRATORS
SCLS352G JULY 1997 REVISED APRIL 2003
7
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
switching characteristics over recommended operating free-air temperature range,
V
CC
= 5 V
0.5 V (unless otherwise noted) (see Figure 1)
PARAMETER
FROM
TO
TEST
TA = 25
C
SN54AHC123A
SN74AHC123A
UNIT
PARAMETER
(NPUT)
(OUTPUT)
CONDITIONS
MIN
TYP
MAX
MIN
MAX
MIN
MAX
UNIT
tPLH
A
B
Q
Q
CL = 15 pF
6.5*
12*
1*
14*
1
14
ns
tPHL
A or B
Q or Q
CL = 15 pF
7.1*
12*
1*
14*
1
14
ns
tPLH
CLR
Q or Q
CL = 15 pF
5.3*
9.4*
1*
11*
1
11
ns
tPHL
CLR
Q or Q
CL = 15 pF
6.5*
9.4*
1*
11*
1
11
ns
tPLH
CLR t i
Q
Q
CL = 15 pF
6.9*
12.9*
1*
15*
1
15
ns
tPHL
CLR trigger
Q or Q
CL = 15 pF
7.4*
12.9*
1*
15*
1
15
ns
tPLH
A
B
Q
Q
CL = 50 pF
7.3
14
1
16
1
16
ns
tPHL
A or B
Q or Q
CL = 50 pF
8.3
14
1
16
1
16
ns
tPLH
CLR
Q
Q
CL = 50 pF
6.3
11.4
1
13
1
13
ns
tPHL
CLR
Q or Q
CL = 50 pF
7.4
11.4
1
13
1
13
ns
tPLH
CLR t i
Q
Q
CL = 50 pF
7.6
14.9
1
17
1
17
ns
tPHL
CLR trigger
Q or Q
CL = 50 pF
8.7
14.9
1
17
1
17
ns
CL = 50 pF,
Cext = 28 pF,
Rext = 2 k
167
200
240
240
ns
tw
Q or Q
CL = 50 pF,
Cext = 0.01
F,
Rext = 10 k
90
100
110
90
110
90
110
m
s
CL = 50 pF,
Cext = 0.1
F,
Rext = 10 k
0.9
1
1.1
0.9
1.1
0.9
1.1
ms
tw
1
%
* On products compliant to MIL-PRF-38535, this parameter is not production tested.
tw = Pulse duration at Q and Q outputs
tw = Output pulse-duration variation (Q and Q) between circuits in same package
operating characteristics, V
CC
= 5 V, T
A
= 25
C
PARAMETER
TEST CONDITIONS
TYP
UNIT
Cpd
Power dissipation capacitance
No load
29
pF
SN54AHC123A, SN74AHC123A
DUAL RETRIGGERABLE MONOSTABLE MULTIVIBRATORS
SCLS352G JULY 1997 REVISED APRIL 2003
8
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
PARAMETER MEASUREMENT INFORMATION
NOTES: A. CL includes probe and jig capacitance.
B. All input pulses are supplied by generators having the following characteristics: ZO = 50
, tr
+
3 ns, tf
+
3 ns.
C. The outputs are measured one at a time with one input transition per measurement.
50% VCC
tPLH
tPHL
VOH
VOL
VCC
50% VCC
50% VCC
VCC
Input A
(see Note B)
50% VCC
0 V
0 V
In-Phase
Output
Out-of-Phase
Output
VOLTAGE WAVEFORMS
DELAY TIMES
Input B
(see Note B)
VOL
VOH
LOAD CIRCUIT
Test
Point
CL
(see Note A)
From Output
Under Test
50% VCC
tPLH
tPHL
tPHL
tPLH
VOH
VOH
VOL
VOL
VCC
0 V
50% VCC
Input CLR
(see Note B)
Out-of-Phase
Output
In-Phase
Output
VOLTAGE WAVEFORMS
DELAY TIMES
50% VCC
50% VCC
50% VCC
50% VCC
VCC
0 V
tw
VOLTAGE WAVEFORMS
PULSE DURATION
Inputs or
Outputs
50% VCC
50% VCC
Figure 1. Load Circuit and Voltage Waveforms
SN54AHC123A, SN74AHC123A
DUAL RETRIGGERABLE MONOSTABLE MULTIVIBRATORS
SCLS352G JULY 1997 REVISED APRIL 2003
9
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
APPLICATION INFORMATION
caution in use
To prevent malfunctions due to noise, connect a high-frequency capacitor between V
CC
and GND, and keep
the wiring between the external components and C
ext
and R
ext
/C
ext
terminals as short as possible.
power-down considerations
Large values of C
ext
can cause problems when powering down the 'AHC123A devices because of the amount
of energy stored in the capacitor. When a system containing this device is powered down, the capacitor can
discharge from V
CC
through the protection diodes at pin 2 or pin 14. Current through the input protection diodes
must be limited to 30 mA; therefore, the turn-off time of the V
CC
power supply must not be faster than
t = V
CC
C
ext
/30 mA. For example, if V
CC
= 5 V and C
ext
= 15 pF, the V
CC
supply must turn off no faster than
t = (5 V)
(15 pF)/30 mA = 2.5 ns. Usually, this is not a problem because power supplies are heavily filtered
and cannot discharge at this rate. When a more rapid decrease of V
CC
to zero occurs, the 'AHC123A devices
can sustain damage. To avoid this possibility, use external clamping diodes.
output pulse duration
The output pulse duration, t
w
, is determined primarily by the values of the external capacitance (C
T
) and timing
resistance (R
T
). The timing components are connected as shown in Figure 2.
VCC
RT
CT
To Rext/Cext
Terminal
To Cext
Terminal
Figure 2. Timing-Component Connections
The pulse duration is given by:
t
w
+
K
R
T
C
T
if C
T
is
1000 pF, K = 1.0 or
if C
T
is
<
1000 pF, K can be determined from Figure 5
where:
t
w
= pulse duration in ns
R
T
= external timing resistance in k
C
T
= external capacitance in pF
K
= multiplier factor
Equation 1 and Figure 3 can be used to determine values for pulse duration, external resistance, and external
capacitance.
(1)
SN54AHC123A, SN74AHC123A
DUAL RETRIGGERABLE MONOSTABLE MULTIVIBRATORS
SCLS352G JULY 1997 REVISED APRIL 2003
10
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
APPLICATION INFORMATION
retriggering data
The minimum input retriggering time (t
MIR
) is the minimum time required after the initial signal before retriggering
the input. After t
MIR
, the device retriggers the output. Experimentally, it also can be shown that to retrigger the
output pulse, the two adjacent input signals should be t
MIR
apart, where t
MIR
= 0.30
t
w
. The retrigger pulse
duration is calculated as shown in Figure 3.
tMIR
tRT
tPLH
tw
Input
Output
tRT = tw + tPLH = (K
RT
CT) + tPLH
Where:
tMIR = Minimum Input Retriggering Time
tPLH = Propagation Delay
tRT = Retrigger Time
tw
= Output Pulse Duration Before Retriggering
Figure 3. Retrigger Pulse Duration
The minimum value from the end of the input pulse to the beginning of the retriggered output should be
approximately 15 ns to ensure a retriggered output (see Figure 4).
Input
Output
tMRT = Minimum Time Between the End of the Second Input Pulse and the Beginning of the Retriggered Output
tMRT = 15 ns
tMRT
Figure 4. Input/Output Requirements
SN54AHC123A, SN74AHC123A
DUAL RETRIGGERABLE MONOSTABLE MULTIVIBRATORS
SCLS352G JULY 1997 REVISED APRIL 2003
11
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
APPLICATION INFORMATION
1
10
102
103
104
105
106
107
1.00E+00
1.00E+01
1.00E+02
1.00E+03
1.00E+04
1.00E+05
1.00E+06
1.00E+07
1.00E+08
1.00E+09
RT = 1k
RT = 5k
RT = 10k
RT = 80k
RT = 150k
RT = 200k
VCC = 5 V
TA = 25
C
Output Pulse Duration
ns
w
t
CT External Timing Capacitance pF
Figure 5. Output Pulse Duration vs External Timing Capacitance
tw = 866 ns at:
VCC = 5 V
RT = 10 k
CT = 50 pF
TA = 25
C
60
40
20
0
20
40
60
80
100
120
140
160
VCC = 2.5 V
VCC = 3 V
VCC = 3.5 V
VCC = 4 V
VCC = 5 V
VCC = 6 V
VCC = 7 V
180
6%
4%
2%
0%
2%
4%
6%
8%
10%
12%
14%
Temperature
C
V
ariation in Output Pulse Duration
Figure 6. Variations in Output Pulse Duration vs Temperature
Operation of the device at these or any other conditions beyond those indicated under "recommended operating conditions" is not implied.
SN54AHC123A, SN74AHC123A
DUAL RETRIGGERABLE MONOSTABLE MULTIVIBRATORS
SCLS352G JULY 1997 REVISED APRIL 2003
12
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
APPLICATION INFORMATION
Figure 7
MINIMUM TRIGGER TIME
vs
V
CC
CHARACTERISTICS
RT = 1 k
TA = 25
C
10.00
0
1.00
0.10
0.01
1
2
3
4
5
6
CT = 0.01
F
CT = 1000 pF
CT = 100 pF
VCC Supply Voltage V
Minimum Retrigger T
ime
s
rr
t
Figure 8
1.20
1.15
1.10
1.05
1.00
0.95
0.90
1.5
2
2.5
3
3.5
4
4.5
5
5.5
6
RT = 10 k
TA = 25
C
tW = K
CT
RT
VCC Supply Voltage V
OUTPUT PULSE-DURATION CONSTANT
vs
SUPPLY VOLTAGE
Output Pulse-Duration Constant
K
CT = 1000 pF
CT = 0.01
F
CT = 0.1
F
Figure 9
1.00 1.50 2.00
2.50 3.00 3.50 4.00 4.50
0.00001
0.0001
0.001
TA = 25
C
VCC = 5 V
For Capacitor Values of
0.001
F or Greater,
K = 1.0
(K is Independent of R)
Multiplier Factor K
EXTERNAL CAPACITANCE
vs
MULTIPLIER FACTOR
C
T
External Capacitor V
alue
F
Figure 10
tw Output Pulse Duration
Relative Frequency of Occurance
DISTRIBUTION OF UNITS
vs
OUTPUT PULSE DURATION
Mean = 856 ns
Median = 856 ns
Std. Dev. = 3.5 ns
VCC = 5 V
TA = 25
C
CT = 50 pF
RT = 10 k
W
3 Std. Dev.
+3 Std. Dev.
Median
99% of Data Units
Operation of the device at these or any other conditions beyond those indicated under "recommended operating conditions" is not implied.
PACKAGING INFORMATION
Orderable Device
Status
(1)
Package
Type
Package
Drawing
Pins Package
Qty
Eco Plan
(2)
Lead/Ball Finish
MSL Peak Temp
(3)
5962-9860801Q2A
ACTIVE
LCCC
FK
20
1
TBD
Call TI
Level-NC-NC-NC
5962-9860801QEA
ACTIVE
CDIP
J
16
1
TBD
Call TI
Level-NC-NC-NC
5962-9860801QFA
ACTIVE
CFP
W
16
1
TBD
Call TI
Level-NC-NC-NC
SN74AHC123AD
ACTIVE
SOIC
D
16
40
Green (RoHS &
no Sb/Br)
CU NIPDAU
Level-1-260C-UNLIM
SN74AHC123ADBR
ACTIVE
SSOP
DB
16
2000 Green (RoHS &
no Sb/Br)
CU NIPDAU
Level-1-260C-UNLIM
SN74AHC123ADBRE4
ACTIVE
SSOP
DB
16
2000 Green (RoHS &
no Sb/Br)
CU NIPDAU
Level-1-260C-UNLIM
SN74AHC123ADE4
ACTIVE
SOIC
D
16
40
Green (RoHS &
no Sb/Br)
CU NIPDAU
Level-1-260C-UNLIM
SN74AHC123ADG4
ACTIVE
SOIC
D
16
40
Green (RoHS &
no Sb/Br)
CU NIPDAU
Level-1-260C-UNLIM
SN74AHC123ADGVR
ACTIVE
TVSOP
DGV
16
2000 Green (RoHS &
no Sb/Br)
CU NIPDAU
Level-1-260C-UNLIM
SN74AHC123ADGVRE4
ACTIVE
TVSOP
DGV
16
2000 Green (RoHS &
no Sb/Br)
CU NIPDAU
Level-1-260C-UNLIM
SN74AHC123ADR
ACTIVE
SOIC
D
16
2500 Green (RoHS &
no Sb/Br)
CU NIPDAU
Level-1-260C-UNLIM
SN74AHC123ADRE4
ACTIVE
SOIC
D
16
2500 Green (RoHS &
no Sb/Br)
CU NIPDAU
Level-1-260C-UNLIM
SN74AHC123ADRG4
ACTIVE
SOIC
D
16
2500 Green (RoHS &
no Sb/Br)
CU NIPDAU
Level-1-260C-UNLIM
SN74AHC123AN
ACTIVE
PDIP
N
16
25
Pb-Free
(RoHS)
CU NIPDAU
Level-NC-NC-NC
SN74AHC123ANE4
ACTIVE
PDIP
N
16
25
Pb-Free
(RoHS)
CU NIPDAU
Level-NC-NC-NC
SN74AHC123APWR
ACTIVE
TSSOP
PW
16
2000 Green (RoHS &
no Sb/Br)
CU NIPDAU
Level-1-260C-UNLIM
SN74AHC123APWRE4
ACTIVE
TSSOP
PW
16
2000 Green (RoHS &
no Sb/Br)
CU NIPDAU
Level-1-260C-UNLIM
SNJ54AHC123AFK
ACTIVE
LCCC
FK
20
1
TBD
Call TI
Level-NC-NC-NC
SNJ54AHC123AJ
ACTIVE
CDIP
J
16
1
TBD
Call TI
Level-NC-NC-NC
SNJ54AHC123AW
ACTIVE
CFP
W
16
1
TBD
Call TI
Level-NC-NC-NC
(1)
The marketing status values are defined as follows:
ACTIVE: Product device recommended for new designs.
LIFEBUY: TI has announced that the device will be discontinued, and a lifetime-buy period is in effect.
NRND: Not recommended for new designs. Device is in production to support existing customers, but TI does not recommend using this part in
a new design.
PREVIEW: Device has been announced but is not in production. Samples may or may not be available.
OBSOLETE: TI has discontinued the production of the device.
(2)
Eco
Plan
-
The
planned
eco-friendly
classification:
Pb-Free
(RoHS)
or
Green
(RoHS
&
no
Sb/Br)
-
please
check
http://www.ti.com/productcontent
for the latest availability information and additional product content details.
TBD: The Pb-Free/Green conversion plan has not been defined.
Pb-Free (RoHS): TI's terms "Lead-Free" or "Pb-Free" mean semiconductor products that are compatible with the current RoHS requirements
for all 6 substances, including the requirement that lead not exceed 0.1% by weight in homogeneous materials. Where designed to be soldered
at high temperatures, TI Pb-Free products are suitable for use in specified lead-free processes.
Green (RoHS & no Sb/Br): TI defines "Green" to mean Pb-Free (RoHS compatible), and free of Bromine (Br) and Antimony (Sb) based flame
retardants (Br or Sb do not exceed 0.1% by weight in homogeneous material)
PACKAGE OPTION ADDENDUM
www.ti.com
26-Sep-2005
Addendum-Page 1
(3)
MSL, Peak Temp. -- The Moisture Sensitivity Level rating according to the JEDEC industry standard classifications, and peak solder
temperature.
Important Information and Disclaimer:The information provided on this page represents TI's knowledge and belief as of the date that it is
provided. TI bases its knowledge and belief on information provided by third parties, and makes no representation or warranty as to the
accuracy of such information. Efforts are underway to better integrate information from third parties. TI has taken and continues to take
reasonable steps to provide representative and accurate information but may not have conducted destructive testing or chemical analysis on
incoming materials and chemicals. TI and TI suppliers consider certain information to be proprietary, and thus CAS numbers and other limited
information may not be available for release.
In no event shall TI's liability arising out of such information exceed the total purchase price of the TI part(s) at issue in this document sold by TI
to Customer on an annual basis.
PACKAGE OPTION ADDENDUM
www.ti.com
26-Sep-2005
Addendum-Page 2
MECHANICAL DATA
MLCC006B OCTOBER 1996
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
FK (S-CQCC-N**)
LEADLESS CERAMIC CHIP CARRIER
4040140 / D 10/96
28 TERMINAL SHOWN
B
0.358
(9,09)
MAX
(11,63)
0.560
(14,22)
0.560
0.458
0.858
(21,8)
1.063
(27,0)
(14,22)
A
NO. OF
MIN
MAX
0.358
0.660
0.761
0.458
0.342
(8,69)
MIN
(11,23)
(16,26)
0.640
0.739
0.442
(9,09)
(11,63)
(16,76)
0.962
1.165
(23,83)
0.938
(28,99)
1.141
(24,43)
(29,59)
(19,32)
(18,78)
**
20
28
52
44
68
84
0.020 (0,51)
TERMINALS
0.080 (2,03)
0.064 (1,63)
(7,80)
0.307
(10,31)
0.406
(12,58)
0.495
(12,58)
0.495
(21,6)
0.850
(26,6)
1.047
0.045 (1,14)
0.045 (1,14)
0.035 (0,89)
0.035 (0,89)
0.010 (0,25)
12
13
14
15
16
18
17
11
10
8
9
7
5
4
3
2
0.020 (0,51)
0.010 (0,25)
6
1
28
26
27
19
21
B SQ
A SQ
22
23
24
25
20
0.055 (1,40)
0.045 (1,14)
0.028 (0,71)
0.022 (0,54)
0.050 (1,27)
NOTES: A. All linear dimensions are in inches (millimeters).
B. This drawing is subject to change without notice.
C. This package can be hermetically sealed with a metal lid.
D. The terminals are gold plated.
E. Falls within JEDEC MS-004
MECHANICAL DATA
MPDS006C FEBRUARY 1996 REVISED AUGUST 2000
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
DGV (R-PDSO-G**)
PLASTIC SMALL-OUTLINE
24 PINS SHOWN
14
3,70
3,50
4,90
5,10
20
DIM
PINS **
4073251/E 08/00
1,20 MAX
Seating Plane
0,05
0,15
0,25
0,50
0,75
0,23
0,13
1
12
24
13
4,30
4,50
0,16 NOM
Gage Plane
A
7,90
7,70
38
24
16
4,90
5,10
3,70
3,50
A MAX
A MIN
6,60
6,20
11,20
11,40
56
9,60
9,80
48
0,08
M
0,07
0,40
0
8
NOTES: A. All linear dimensions are in millimeters.
B. This drawing is subject to change without notice.
C. Body dimensions do not include mold flash or protrusion, not to exceed 0,15 per side.
D. Falls within JEDEC: 24/48 Pins MO-153
14/16/20/56 Pins MO-194
MECHANICAL DATA
MSSO002E JANUARY 1995 REVISED DECEMBER 2001
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
DB (R-PDSO-G**)
PLASTIC SMALL-OUTLINE
4040065 /E 12/01
28 PINS SHOWN
Gage Plane
8,20
7,40
0,55
0,95
0,25
38
12,90
12,30
28
10,50
24
8,50
Seating Plane
9,90
7,90
30
10,50
9,90
0,38
5,60
5,00
15
0,22
14
A
28
1
20
16
6,50
6,50
14
0,05 MIN
5,90
5,90
DIM
A MAX
A MIN
PINS **
2,00 MAX
6,90
7,50
0,65
M
0,15
0
8
0,10
0,09
0,25
NOTES: A. All linear dimensions are in millimeters.
B. This drawing is subject to change without notice.
C. Body dimensions do not include mold flash or protrusion not to exceed 0,15.
D. Falls within JEDEC MO-150
MECHANICAL DATA
MTSS001C JANUARY 1995 REVISED FEBRUARY 1999
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
PW (R-PDSO-G**)
PLASTIC SMALL-OUTLINE PACKAGE
14 PINS SHOWN
0,65
M
0,10
0,10
0,25
0,50
0,75
0,15 NOM
Gage Plane
28
9,80
9,60
24
7,90
7,70
20
16
6,60
6,40
4040064/F 01/97
0,30
6,60
6,20
8
0,19
4,30
4,50
7
0,15
14
A
1
1,20 MAX
14
5,10
4,90
8
3,10
2,90
A MAX
A MIN
DIM
PINS **
0,05
4,90
5,10
Seating Plane
0
8
NOTES: A. All linear dimensions are in millimeters.
B. This drawing is subject to change without notice.
C. Body dimensions do not include mold flash or protrusion not to exceed 0,15.
D. Falls within JEDEC MO-153
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Applications
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amplifier.ti.com
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www.ti.com/audio
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dataconverter.ti.com
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www.ti.com/automotive
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www.ti.com/broadband
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interface.ti.com
Digital Control
www.ti.com/digitalcontrol
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logic.ti.com
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www.ti.com/military
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power.ti.com
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www.ti.com/opticalnetwork
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microcontroller.ti.com
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www.ti.com/security
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www.ti.com/telephony
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www.ti.com/video
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www.ti.com/wireless
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Copyright
2005, Texas Instruments Incorporated
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