TECHNICAL DATA
D
UAL
D F
LIP
-F
LOP WITH
S
ET AND
R
ESET
IN74VHC74 is high-speed logic IC made by CMOS
technology and designed for use in high-performance
calculating systems with a wide supply voltage range.
As for operation speed, IN74VHC74 can be compared
with equivalent bipolar ICs based on Schottky TTL and two
times surpasses ICs of IN74НС series.
IN74VHC74 tolerates operation under conditions when
voltage on input is exceeded up to 7V without affecting
characteristics and IC reliability. This possibility allows to
use IN74VHC74 in radio-electronic devices for interfacing
with supply voltages 5V and 3V, eliminate IC failure under
supply voltage source emergency outage.
Use of output edge shaping block in the microcircuit
allows to reduce noise amplitude of noises when switching
outputs into the same state simultaneously.
Input and output levels of IN74VHC74 are compatible with
CMOS levels
IN74VHC74
ORDERING INFORMATION
IN74VHC74N Plastic
IN74VHC74D SOIC
T
A
= -40° to 85° C for all
packages
•
•
•
•
•
•
•
•
•
•
Features:
Supply voltage range 2.0 to 5.5 V.
Output current 8 mA.
Low consumption current: 0.2 mkA (typical value) at
Та
= 25
°С.
Latchup current not less than 300 mA at
Та
= 85
°С.
Tolerable value of static potential not less than 2000 V as per human body model (HBM) and not
less than 200 V as per machine model (ММ).
Ambient operation temperature minus 40 to plus 85
°С.
Balanced signal propagation delay.
Ensures voltage exceeding mode on input
Low noise level at the simultaneous switching of outputs in the same state: V
OLP
= 0.8 V (max).
For pins and functions, compatible with IN74HC74.
.
.
1
IN74VHC74
IN74VHC74 truth table
Input
Output
nCP
X
X
X
nD
X
X
X
nQ
H
L
H
nSD
L
H
L
H
nRD
H
L
L
H
nQ
L
H
H
H
H
L
H
H
L
L
H
X
X
L
Qo
Qo
H
Qo
Qo
H
H
H
H
H
H
X
Qo
Qo
Note –
H - high voltage level;
L – low voltage level;
X - any voltage level (low or high);
Qo - storage of the previous state;
Z - output in the third
- transition from low into high level;
- transition from high into low level
Pinout
1RD
01
14
Pins description in IN74VHC74
Pin No.
Symbol
Vcc
1D
02
13
2RD
1CP
03
12
2D
1SD
04
11
2СP
01
02
03
04
05
06
07
08
09
10
11
12
13
14
1RD
1D
1CP
Description
Input of RESET signal
Data input
Input of clock signal
Input of SET signal
Data output
Data output
Common output
Data output
Data output
Input of SET signal
Input of clock signal
Data input
Input of RESET signal
1SD
1Q
1Q
GND
1Q
05
10
2SD
1Q
06
09
2Q
2Q
2Q
2Q
GND
07
08
2SD
2CP
2D
2RD
V
CC
Supply output from voltage
source
2
IN74VHC74
Absolute maximum conditions*
Parameter, unit
Supply voltage, V
Input voltage, V
Output voltage, V
Input diode current, mA
Current of common output and supply
output, mA
Output current, mA
Output diode current, mA
Dissipated power, mW
Symbol
min
V
CC
Vin
Vout
Iik
Icc
Iout
Iok
Pd
-0.5
-0.5
-0.5
–
–
–
–
–
Value
max
7.0
7.0
Vcc+0.5V
-20
±
50
±
25
±
20
180
*Under absolute maximum conditions operation of microcircuit is not guaranteed. Operation is
guaranteed under maximum conditions
Maximum conditions
Parameter, unit
Symbol
min
Supply voltage, V
Input voltage,V
Output voltage, V
Output current, mA
Input rise and fall time, ns/V
at Vcc = (3.3 ± 0.3) V
at Vcc = (5.0 ± 0.5) V
V
CC
Vin
Vout
Iout
t
LH
, t
HL
2.0
0
0
–
0
0
Value
max
5.5
V
CC
V
CC
±
8.0
100
20
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