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Электронный компонент: CD74AC273M96

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1
Data sheet acquired from Harris Semiconductor
SCHS249B
Features
Buffered Inputs
Typical Propagation Delay
- 6.5ns at V
CC
= 5V, T
A
= 25
o
C, C
L
= 50pF
Exceeds 2kV ESD Protection MIL-STD-883, Method
3015
SCR-Latchup-Resistant CMOS Process and Circuit
Design
Speed of Bipolar FASTTM/AS/S with Significantly
Reduced Power Consumption
Balanced Propagation Delays
AC Types Feature 1.5V to 5.5V Operation and
Balanced Noise Immunity at 30% of the Supply
24mA Output Drive Current
- Fanout to 15 FASTTM ICs
- Drives 50
Transmission Lines
Pinout
CD54AC273, CD54ACT273
(CDIP)
CD74AC273, CD74ACT273
(PDIP, SOIC)
TOP VIEW
Description
The 'AC273 and 'ACT273 devices are octal D-type flip-flops
with reset that utilize advanced CMOS logic technology.
Information at the D input is transferred to the Q output on
the positive-going edge of the clock pulse. All eight flip-flops
are controlled by a common clock (CP) and a common reset
(MR). Resetting is accomplished by a low voltage level
independent of the clock.
11
12
13
14
15
16
17
18
20
19
10
9
8
7
6
5
4
3
2
1
MR
Q0
D0
D1
Q1
Q2
D3
D2
Q3
GND
V
CC
D7
D6
Q6
Q7
Q5
D5
D4
Q4
CP
Ordering Information
PART
NUMBER
TEMPERATURE
RANGE
PACKAGE
CD74AC273E
0
o
C to 70
o
C
-40
o
C to 85
o
C
-55
o
C to 125
o
C
20 Ld PDIP
CD54AC273F3A
-55
o
C to 125
o
C
20 Ld CDIP
CD74ACT273E
0
o
C to 70
o
C
-40
o
C to 85
o
C
-55
o
C to 125
o
C
20 Ld PDIP
CD54ACT273F3A
-55
o
C to 125
o
C
20 Ld CDIP
CD74AC273M
0
o
C to 70
o
C
-40
o
C to 85
o
C
-55
o
C to 125
o
C
20 Ld SOIC
CD74ACT273M
0
o
C to 70
o
C
-40
o
C to 85
o
C
-55
o
C to 125
o
C
20 Ld SOIC
NOTES:
1. When ordering, use the entire part number. Add the suffix 96 to
obtain the variant in the tape and reel.
2. Wafer and die for this part number is available which meets all
electrical specifications. Please contact your local sales office for
ordering information.
August 1998 - Revised July 2002
CAUTION: These devices are sensitive to electrostatic discharge. Users should follow proper IC Handling Procedures.
FASTTM is a Trademark of Fairchild Semiconductor.
Copyright
2002, Texas Instruments Incorporated
CD54AC273, CD74AC273
CD54ACT273, CD74ACT273
Octal D Flip-Flop with Reset
2
Functional Diagram
TRUTH TABLE
INPUTS
OUTPUTS
RESET
(MR)
CLOCK
CP
DATA
Dn
Qn
L
X
X
L
H
H
H
H
L
L
H
L
X
Q0
H = High level (steady state), L = Low level (steady state), X = Irrel-
evant,
= Transition from Low to High level, Q0 = The level of Q
before the indicated steady-state input conditions were estab-
lished.
Q0
Q1
Q2
Q3
Q4
Q5
Q6
Q7
RESET MR
D0
D1
D2
D3
D4
D5
D6
D7
CLOCK
CP
DATA
INPUTS
DATA
OUTPUTS
CD54AC273, CD74AC273, CD54ACT273, CD74ACT273
3
Absolute Maximum Ratings
Thermal Information
DC Supply Voltage, V
CC
. . . . . . . . . . . . . . . . . . . . . . . . -0.5V to 6V
DC Input Diode Current, I
IK
For V
I
< -0.5V or V
I
> V
CC
+ 0.5V
. . . . . . . . . . . . . . . . . . . . . .
20mA
DC Output Diode Current, I
OK
For V
O
< -0.5V or V
O
> V
CC
+ 0.5V
. . . . . . . . . . . . . . . . . . . .
50mA
DC Output Source or Sink Current per Output Pin, I
O
For V
O
> -0.5V or V
O
< V
CC
+ 0.5V
. . . . . . . . . . . . . . . . . . . .
50mA
DC V
CC
or Ground Current, I
CC or
I
GND
(Note 3)
. . . . . . . . .
100mA
Operating Conditions
Temperature Range, T
A
. . . . . . . . . . . . . . . . . . . . . . -55
o
C to 125
o
C
Supply Voltage Range, V
CC
(Note 4)
AC Types. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1.5V to 5.5V
ACT Types . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4.5V to 5.5V
DC Input or Output Voltage, V
I
, V
O
. . . . . . . . . . . . . . . . . 0V to V
CC
Input Rise and Fall Slew Rate, dt/dv
AC Types, 1.5V to 3V . . . . . . . . . . . . . . . . . . . . . . . . . 50ns (Max)
AC Types, 3.6V to 5.5V . . . . . . . . . . . . . . . . . . . . . . . . 20ns (Max)
ACT Types, 4.5V to 5.5V. . . . . . . . . . . . . . . . . . . . . . . 10ns (Max)
Thermal Resistance,
JA
(Typical, Note 5)
E Package . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 69
o
C/W
M Package . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 58
o
C/W
Maximum Junction Temperature (Plastic Package) . . . . . . . . . . 150
o
C
Maximum Storage Temperature Range . . . . . . . . . .-65
o
C to 150
o
C
Maximum Lead Temperature (Soldering 10s) . . . . . . . . . . . . . 300
o
C
CAUTION: Stresses above those listed in "Absolute Maximum Ratings" may cause permanent damage to the device. This is a stress only rating and operation
of the device at these or any other conditions above those indicated in the operational sections of this specification is not implied.
NOTES:
3. For up to 4 outputs per device, add
25mA for each additional output.
4. Unless otherwise specified, all voltages are referenced to ground.
5. The package thermal impedance is calculated in accordance with JESD 51.
DC Electrical Specifications
PARAMETER
SYMBOL
TEST
CONDITIONS
V
CC
(V)
25
o
C
-40
o
C TO
85
o
C
-55
o
C TO
125
o
C
UNITS
V
I
(V)
I
O
(mA)
MIN
MAX
MIN
MAX
MIN
MAX
AC TYPES
High Level Input Voltage
V
IH
-
-
1.5
1.2
-
1.2
-
1.2
-
V
3
2.1
-
2.1
-
2.1
-
V
5.5
3.85
-
3.85
-
3.85
-
V
Low Level Input Voltage
V
IL
-
-
1.5
-
0.3
-
0.3
-
0.3
V
3
-
0.9
-
0.9
-
0.9
V
5.5
-
1.65
-
1.65
-
1.65
V
High Level Output Voltage
V
OH
V
IH
or V
IL
-0.05
1.5
1.4
-
1.4
-
1.4
-
V
-0.05
3
2.9
-
2.9
-
2.9
-
V
-0.05
4.5
4.4
-
4.4
-
4.4
-
V
-4
3
2.58
-
2.48
-
2.4
-
V
-24
4.5
3.94
-
3.8
-
3.7
-
V
-75
(Note 6, 7)
5.5
-
-
3.85
-
-
-
V
-50
(Note 6, 7)
5.5
-
-
-
-
3.85
-
V
CD54AC273, CD74AC273, CD54ACT273, CD74ACT273
4
Low Level Output Voltage
V
OL
V
IH
or V
IL
0.05
1.5
-
0.1
-
0.1
-
0.1
V
0.05
3
-
0.1
-
0.1
-
0.1
V
0.05
4.5
-
0.1
-
0.1
-
0.1
V
12
3
-
0.36
-
0.44
-
0.5
V
24
4.5
-
0.36
-
0.44
-
0.5
V
75
(Note 6, 7)
5.5
-
-
-
1.65
-
-
V
50
(Note 6, 7)
5.5
-
-
-
-
-
1.65
V
Input Leakage Current
I
I
V
CC
or
GND
-
5.5
-
0.1
-
1
-
1
A
Quiescent Supply Current
MSI
I
CC
V
CC
or
GND
0
5.5
-
8
-
80
-
160
A
ACT TYPES
High Level Input Voltage
V
IH
-
-
4.5 to
5.5
2
-
2
-
2
-
V
Low Level Input Voltage
V
IL
-
-
4.5 to
5.5
-
0.8
-
0.8
-
0.8
V
High Level Output Voltage
V
OH
V
IH
or V
IL
-0.05
4.5
4.4
-
4.4
-
4.4
-
V
-24
4.5
3.94
-
3.8
-
3.7
-
V
-75
(Note 6, 7)
5.5
-
-
3.85
-
-
-
V
-50
(Note 6, 7)
5.5
-
-
-
-
3.85
-
V
Low Level Output Voltage
V
OL
V
IH
or V
IL
0.05
4.5
-
0.1
-
0.1
-
0.1
V
24
4.5
-
0.36
-
0.44
-
0.5
V
75
(Note 6, 7)
5.5
-
-
-
1.65
-
-
V
50
(Note 6, 7)
5.5
-
-
-
-
-
1.65
V
Input Leakage Current
I
I
V
CC
or
GND
-
5.5
-
0.1
-
1
-
1
A
Quiescent Supply Current
MSI
I
CC
V
CC
or
GND
0
5.5
-
8
-
80
-
160
A
Additional Supply Current per
Input Pin TTL Inputs High
1 Unit Load
I
CC
V
CC
-2.1
-
4.5 to
5.5
-
2.4
-
2.8
-
3
mA
NOTES:
6. Test one output at a time for a 1-second maximum duration. Measurement is made by forcing current and measuring voltage to minimize
power dissipation.
7. Test verifies a minimum 50
transmission-line-drive capability at 85
o
C, 75
at 125
o
C.
ACT Input Load Table
INPUT
UNIT LOAD
Dn
0.5
MR
0.57
CP
1
NOTE: Unit load is
I
CC
limit specified in DC Electrical Specifications
Table, e.g., 2.4mA max at 25
o
C.
DC Electrical Specifications
(Continued)
PARAMETER
SYMBOL
TEST
CONDITIONS
V
CC
(V)
25
o
C
-40
o
C TO
85
o
C
-55
o
C TO
125
o
C
UNITS
V
I
(V)
I
O
(mA)
MIN
MAX
MIN
MAX
MIN
MAX
CD54AC273, CD74AC273, CD54ACT273, CD74ACT273
5
Prerequisite For Switching Function
PARAMETER
SYMBOL
V
CC
(V)
-40
o
C TO 85
o
C
-55
o
C TO 125
o
C
UNITS
MIN
MAX
MIN
MAX
AC TYPES
Data to CP Set-Up Time
t
SU
1.5
2
-
2
-
ns
3.3
(Note 9)
2
-
2
-
ns
5
(Note 10)
2
-
2
-
ns
Hold Time
t
H
1.5
2
-
2
-
ns
3.3
2
-
2
-
ns
5
2
-
2
-
ns
Removal Time, MR to CP
t
REM
1.5
2
-
2
-
ns
3.3
2
-
2
-
ns
5
2
-
2
-
ns
MR Pulse Width
t
W
1.5
55
-
63
-
ns
3.3
6.1
-
7
-
ns
5
4.4
-
5
-
ns
CP Pulse Width
t
W
1.5
55
-
63
-
ns
3.3
6.1
-
7
-
ns
5
4.4
-
5
-
ns
CP Frequency
f
MAX
1.5
9
-
8
-
MHz
3.3
81
-
71
-
MHz
5
114
-
100
-
MHz
ACT TYPES
Data to CP Set-Up Time
t
SU
5
(Note 10)
2
-
2
-
ns
Hold Time
t
H
5
2
-
2
-
ns
Removal Time MR to CP
t
REM
5
2
-
2
-
ns
MR Pulse Width
t
W
5
4.4
-
5
-
ns
CP Pulse Width
t
W
5
5.3
-
6
-
ns
CP Frequency
f
MAX
5
97
-
85
-
MHz
Switching Specifications
Input t
r
, t
f
= 3ns, C
L
= 50pF (Worst Case)
PARAMETER
SYMBOL
V
CC
(V)
-40
o
C TO 85
o
C
-55
o
C TO 125
o
C
UNITS
MIN
TYP
MAX
MIN
TYP
MAX
AC TYPES
Propagation Delay,
CP to Qn
t
PLH
, t
PHL
1.5
-
-
154
-
-
169
ns
3.3
(Note 9)
4.9
-
17.2
4.7
-
18.9
ns
5
(Note 10)
3.5
-
12.3
3.4
-
13.5
ns
CD54AC273, CD74AC273, CD54ACT273, CD74ACT273