
DATA SH EET
Product specification
File under Integrated Circuits, IC06
December 1990
INTEGRATED CIRCUITS
74HC/HCT4002
Dual 4-input NOR gate
For a complete data sheet, please also download:
•The IC06 74HC/HCT/HCU/HCMOS Logic Family Specifications
•The IC06 74HC/HCT/HCU/HCMOS Logic Package Information
•The IC06 74HC/HCT/HCU/HCMOS Logic Package Outlines

December 1990 2
Philips Semiconductors Product specification
Dual 4-input NOR gate 74HC/HCT4002
FEATURES
• Output capability: standard
• ICC category: SSI
GENERAL DESCRIPTION
The 74HC/HCT4002 are high-speed Si-gate CMOS devices and are pin compatible with “4002” of the “4000B” series.
They are specified in compliance with JEDEC standard no. 7A.
The 74HC/HCT4002 provide the 4-input NOR function.
QUICK REFERENCE DATA
GND = 0 V; T
amb
=25°C; tr=tf= 6 ns
Notes
1. C
PD
is used to determine the dynamic power dissipation (PD in µW):
PD=CPD× V
CC
2
× fi+∑(CL× V
CC
2
× fo) where:
fi= input frequency in MHz
fo= output frequency in MHz
∑ (CL× V
CC
2
× fo) = sum of outputs
CL= output load capacitance in pF
VCC= supply voltage in V
2. For HC the condition is VI= GND to V
CC
For HCT the condition is VI= GND to VCC− 1.5 V
ORDERING INFORMATION
See
“74HC/HCT/HCU/HCMOS Logic Package Information”
.
SYMBOL PARAMETER CONDITIONS
TYPICAL
UNIT
HC HCT
t
PHL
/ t
PLH
propagation delay nA, nB, nC, nD to nY CL= 15 pF; VCC= 5 V 9 11 ns
C
I
input capacitance 3.5 3.5 pF
C
PD
power dissipation capacitance per gate notes 1 and 2 16 22 pF

December 1990 3
Philips Semiconductors Product specification
Dual 4-input NOR gate 74HC/HCT4002
PIN DESCRIPTION
PIN NO. SYMBOL NAME AND FUNCTION
1, 13 1Y, 2Y data outputs
2, 9 1A, 2A data inputs
3, 10 1B, 2B data inputs
4, 11 1C, 2C data inputs
5, 12 1D, 2D data inputs
6, 8 n.c. not connected
7 GND ground (0 V)
14 V
CC
positive supply voltage
Fig.1 Pin configuration. Fig.2 Logic symbol. Fig.3 IEC logic symbol.

December 1990 4
Philips Semiconductors Product specification
Dual 4-input NOR gate 74HC/HCT4002
Fig.4 Functional diagram.
FUNCTION TABLE
Notes
1. H = HIGH voltage level
L = LOW voltage level
X = don’t care
INPUTS OUTPUT
nA nB nC nD nY
LLLL H
H
X
X
X
X
H
X
X
X
X
H
X
X
X
X
H
L
L
L
L
Fig.5 Logic diagram 74HC4002 (one gate). Fig.6 Logic diagram 74HCT4002 (one gate).

December 1990 5
Philips Semiconductors Product specification
Dual 4-input NOR gate 74HC/HCT4002
DC CHARACTERISTICS FOR 74HC
For the DC characteristics see
“74HC/HCT/HCU/HCMOS Logic Family Specifications”
.
Out put capability: standard
ICC category: SSI
AC CHARACTERISTICS FOR 74HC
GND = 0 V; t
r=tf
= 6 ns; CL= 50 pF
SYMBOL PARAMETER
T
amb
(°C)
UNIT
TEST CONDITIONS
74HC
V
CC
(V)
WAVEFORMS
+25 −40 to +85 −40 to +125
min. typ. max. min. max. min. max.
t
PHL
/ t
PLH
propagation delay
nA, nB, nC, nD to nY
30
11
9
100
20
17
125
25
21
150
30
26
ns 2.0
4.5
6.0
Fig.7
t
THL
/ t
TLH
output transition time 19
7
6
75
15
13
95
19
16
110
22
19
ns 2.0
4.5
6.0
Fig.7

December 1990 6
Philips Semiconductors Product specification
Dual 4-input NOR gate 74HC/HCT4002
DC CHARACTERISTICS FOR 74HCT
For the DC characteristics see
“74HC/HCT/HCU/HCMOS Logic Family Specifications”
.
Output capability: standard
ICC category: SSI
Note to HCT types
The value of additional quiescent supply current (∆I
CC
) for a unit load of 1 is given in the family specifications.
To determine ∆ICC per input, multiply this value by the unit load coefficient shown in the table below.
AC CHARACTERISTICS FOR 74HCT
GND = 0 V; tr=tf= 6 ns; CL= 50 pF
AC WAVEFORMS
PACKAGE OUTLINES
See
“74HC/HCT/HCU/HCMOS Logic Package Outlines”
.
INPUT UNIT LOAD COEFFICIENT
nA, nB, nC, nD 0.45
SYMBOL PARAMETER
T
amb
(°C)
UNIT
TEST CONDITIONS
74HCT
V
CC
(V)
WAVEFORMS
+25 −40 to +85 −40 to +125
min. typ. max. min. max. min. max.
t
PHL
/ t
PLH
propagation delay
nA, nB, nC, nD to nY
13 22 28 33 ns 4.5 Fig.7
t
THL
/ t
TLH
output transition time 7 15 19 22 ns 4.5 Fig.7
Fig.7 Waveforms showing the input (nA, nB, nC, nD) to output (nY) propagation delays and the output transition
times.
(1) HC : VM= 50%; VI= GND to VCC.
HCT: V
M
= 1.3 V; VI= GND to 3 V.