Philips
Semiconductors
74LVC14A
Hex inverting Schmitt-trigger with 5V
tolerant input
Product specification
1998 Apr 28
INTEGRATED CIRCUITS
Philips Semiconductors
Product specification
74LVC14A
Hex inverting Schmitt-trigger with 5V
tolerant input
2
1998 Apr 28
853-1907 19308
FEATURES
Wide supply voltage range of: 1.2 V to 3.6 V
In accordance with JEDEC standard no. 8-1A
Inputs accept voltages up to 5.5 V
CMOS low power consumption
Direct interface with TTL levels
APPLICATIONS
Wave and pulse shapers for highly noisy environments
Astable multivibrators
Monostable multivibrators
DESCRIPTION
The 74LVC14A is a high-performance, low power, low-voltage
Si-gate CMOS device and superior to most advanced CMOS
compatible TTL families.
Inputs can be driven from either 3.3 V or 5 V devices. This feature
allows the use of these devices as translators in a mixed 3.3 V/5 V
environment.
The 74LVC14A provides six inverting buffers with Schmitt-trigger
action. It is capable of transforming slowly changing input signals
into sharply defined, jitter-free output signals.
QUICK REFERENCE DATA
GND = 0 V; T
amb
= 25
C; t
r
t
f
2.5 ns
SYMBOL
PARAMETER
CONDITIONS
TYPICAL
UNIT
t
/t
Propagation delay
C
L
= 50 pF;
4
ns
t
PHL
/t
PLH
g
y
nA to nY
L
V
CC
= 3.3 V
4
ns
C
I
Input capacitance
3.5
pF
C
PD
Power dissipation capacitance per gate
Notes 1 and 2
25
pF
NOTES:
1. C
PD
is used to determine the dynamic power dissipation (P
D
in
W)
P
D
= C
PD
V
CC
2
f
i
)
(C
L
V
CC
2
f
o
) where:
f
i
= input frequency in MHz; C
L
= output load capacity in pF;
f
o
= output frequency in MHz; V
CC
= supply voltage in V;
(C
L
V
CC
2
f
o
) = sum of the outputs.
2. The condition is V
I
= GND to V
CC.
ORDERING INFORMATION
PACKAGES
TEMPERATURE RANGE
OUTSIDE NORTH AMERICA
NORTH AMERICA
DWG NUMBER
14-Pin Plastic SO
40
C to +85
C
74LVC14A D
74LVC14A D
SOT108-1
14-Pin Plastic SSOP Type II
40
C to +85
C
74LVC14A DB
74LVC14A DB
SOT337-1
14-Pin Plastic TSSOP Type I
40
C to +85
C
74LVC14A PW
74LVC14APW DH
SOT402-1
PIN CONFIGURATION
1
2
3
4
5
6
7
1A
1Y
2A
2Y
3A
3Y
GND
V
CC
6A
6Y
5A
5Y
4A
4Y
14
13
12
11
10
9
8
SV00396
PIN DESCRIPTION
PIN NUMBER
SYMBOL
NAME AND FUNCTION
1, 3, 5, 9, 11, 13
1A 6A
Data inputs
2, 4, 6, 8, 10, 12
1Y 6Y
Data outputs
7
GND
Ground (0 V)
14
V
CC
Positive supply voltage
Philips Semiconductors
Product specification
74LVC14A
Hex inverting Schmitt-trigger with 5V
tolerant input
1998 Apr 28
3
LOGIC SYMBOL (IEEE/IEC)
SV00425
1
2
3
4
5
6
9
8
11
10
13
12
LOGIC DIAGRAM (ONE SCHMITT-TRIGGER)
SV00426
A
Y
FUNCTION TABLE
INPUT
OUTPUT
nA
nY
L
H
H
L
NOTES:
H = HIGH voltage level
L = LOW voltage level
LOGIC SYMBOL
SV00424
1A
1Y
2A
2Y
3A
3Y
4A
4Y
5A
5Y
6A
6Y
1
3
5
9
11
13
2
4
6
8
10
12
RECOMMENDED OPERATING CONDITIONS
SYMBOL
PARAMETER
CONDITIONS
LIMITS
UNIT
SYMBOL
PARAMETER
CONDITIONS
MIN
MAX
UNIT
V
CC
DC supply voltage (for max. speed performance)
2.7
3.6
V
V
CC
DC supply voltage (for low-voltage applications)
1.2
3.6
V
V
I
DC input voltage range
0
5.5
V
V
I/O
DC output voltage range; output HIGH or LOW state
0
V
CC
V
V
I/O
DC input voltage range; output 3-State
0
5.5
V
T
amb
Operating free-air temperature range
40
+85
C
t
r
, t
f
Input rise and fall times
V
CC
= 1.2 to 2.7V
V
CC
= 2.7 to 3.6V
0
0
20
10
ns/V
Philips Semiconductors
Product specification
74LVC14A
Hex inverting Schmitt-trigger with 5V
tolerant input
1998 Apr 28
4
ABSOLUTE MAXIMUM RATINGS
1
In accordance with the Absolute Maximum Rating System (IEC 134).
Voltages are referenced to GND (ground = 0V).
SYMBOL
PARAMETER
CONDITIONS
RATING
UNIT
V
CC
DC supply voltage
0.5 to +6.5
V
I
IK
DC input diode current
V
I
t
0
50
mA
V
I
DC input voltage
Note 2
0.5 to +6.5
V
I
OK
DC output diode current
V
O
u
V
CC
or V
O
t
0
"
50
mA
V
I/O
DC output voltage; output HIGH or LOW
Note 2
0.5 to V
CC
+0.5
V
V
I/O
DC input voltage; output 3-State
Note 2
0.5 to 6.5
V
I
O
DC output source or sink current
V
O
= 0 to V
CC
"
50
mA
I
GND
, I
CC
DC V
CC
or GND current
"
100
mA
T
stg
Storage temperature range
65 to +150
C
Power dissipation per package
P
TOT
plastic mini-pack (SO)
above +70
C derate linearly with 8 mW/K
500
mW
plastic shrink mini-pack (SSOP and TSSOP)
above +60
C derate linearly with 5.5 mW/K
500
mW
NOTES:
1. Stresses beyond those listed 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.
2. The input and output voltage ratings may be exceeded if the input and output current ratings are observed.
DC ELECTRICAL CHARACTERISTICS
Over recommended operating conditions. Voltages are referenced to GND (ground = 0V).
LIMITS
SYMBOL
PARAMETER
TEST CONDITIONS
Temp = -40
C to +85
C
UNIT
MIN
TYP
1
MAX
V
HIGH level Input voltage
V
CC
= 1.2V
V
CC
V
V
IH
HIGH level Input voltage
V
CC
= 2.7 to 3.6V
2.0
V
V
LOW level Input voltage
V
CC
= 1.2V
GND
V
V
IL
LOW level Input voltage
V
CC
= 2.7 to 3.6V
0.8
V
V
CC
= 2.7V; V
I
= V
IH
or V
IL
; I
O
= 12mA
V
CC
*
0.5
V
O
HIGH level output voltage
V
CC
= 3.0V; V
I
= V
IH
or V
IL
; I
O
= 100
A
V
CC
*
0.2
V
CC
V
V
OH
HIGH level output voltage
V
CC
= 3.0V; V
I
= V
IH
or V
IL;
I
O
= 18mA
V
CC
*
0.6
V
V
CC
= 3.0V; V
I
= V
IH
or V
IL;
I
O
= 24mA
V
CC
*
0.8
V
CC
= 2.7V; V
I
= V
IH
or V
IL
; I
O
= 12mA
0.40
V
OL
LOW level output voltage
V
CC
= 3.0V; V
I
= V
IH
or V
IL
; I
O
= 100
A
GND
0.20
V
V
CC
= 3.0V; V
I
= V
IH
or V
IL;
I
O
= 24mA
0.55
I
Input leakage current
V
CC
= 3 6V; V = 5 5V or GND
"
0 1
"
5
A
I
I
Input leakage current
V
CC
= 3.6V; V
I
= 5.5V or GND
"
0.1
"
5
A
I
CC
Quiescent supply current
V
CC
= 3.6V; V
I
= V
CC
or GND; I
O
= 0
0.1
10
A
I
CC
Additional quiescent supply current
per input pin
V
CC
= 2.3V to 3.6V; V
I
= V
CC
0.6V; I
O
= 0
5
500
A
NOTE:
1. All typical values are at V
CC
= 3.3V and T
amb
= 25
C.
Philips Semiconductors
Product specification
74LVC14A
Hex inverting Schmitt-trigger with 5V
tolerant input
1998 Apr 28
5
TRANSFER CHARACTERISTICS
Voltages are referenced to GND (ground = 0 V).
T
amb
(
C)
TEST CONDITIONS
SYMBOL
PARAMETER
40 TO +85
UNIT
V
CC
WAVEFORMS
MIN
TYP
1
MAX
CC
(V)
WAVEFORMS
P
iti
i
1.2
1.2
V
T+
Positive-going
threshold
1.1
2.0
V
2.7
Figures 1 and 2
threshold
1.1
2.0
2.7 to 3.6
N
ti
i
0
1.2
V
T
Negative-going
threshold
0.8
1.5
V
2.7
Figures 1 and 2
threshold
0.8
1.5
2.7 to 3.6
H
t
i
1.2
V
H
Hysteresis
(V
T+
V
T
)
0.3
0.4
V
2.7
Figures 1, 2 and 3
(V
T+
V
T-
)
0.3
0.45
*
2.7 to 3.6
NOTES:
1. All typical values are measured at T
amb
= 25
C
2. The V
IH
and V
IL
from the DC family characteristics are superseded by the V
T+
and V
T-
.
TRANSFER CHARACTERISTIC WAVEFORMS
SV00427
V
H
V
T+
V
T
V
O
V
I
Figure 1. Transfer characteristic.
SV00428
V
H
VT
VT+
VO
VI
Figure 2. Definition of
V
T
)
, V
T-
and V
H
;
where V
T+
and V
T-
are between limits of 20% and 70%
0
0
1
2
3
4
5
I
CC
(mA)
0.6
1.8
1.2
2.4
V
in
(V)
3.0
SV00444
Figure 3. Typical 74LVC14 transfer characteristics; V
CC
= 3.3 V.
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