Page 1
DATA SH EET
Product specification
File under Integrated Circuits, IC06
December 1990
INTEGRATED CIRCUITS
74HC/HCT02
Quad 2-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
Page 2
December 1990 2
Philips Semiconductors Product specification
Quad 2-input NOR gate 74HC/HCT02
FEATURES
• Output capability: standard
• ICC category: SSI
GENERAL DESCRIPTION
The 74HC/HCT02 are high-speed Si-gate CMOS devices and are pin compatible with low power Schottky TTL (LSTTL).
They are specified in compliance with JEDEC standard no. 7A.
The 74HC/HCT02 provide the 2-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= output load capacitance in pF
VCC= supply voltage in V
∑ (CL× V
CC
2
× fo) = sum of outputs
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 to nY CL= 15 pF; VCC=5V 7 9 ns
C
I
input capacitance 3.5 3.5 pF
C
PD
power dissipation capacitance per gate notes 1 and 2 22 24 pF
Page 3
December 1990 3
Philips Semiconductors Product specification
Quad 2-input NOR gate 74HC/HCT02
PIN DESCRIPTION
PIN NO. SYMBOL NAME AND FUNCTION
1, 4, 10, 13 1Y to 4Y data outputs
2, 5, 8, 11 1A to 4A data inputs
3, 6, 9, 12 1B to 4B data inputs
7 GND ground (0 V)
14 V
CC
positive supply voltage
Fig.1 Pin configuration. Fig.2 Logic symbol. Fig.3 IEC logic symbol.
Fig.4 Functional diagram. Fig.5 Logic diagram (one gate).
FUNCTION TABLE
Notes
1. H = HIGH voltage level
L = LOW voltage level
INPUTS OUTPUT
nA nB nY
L
L
H
H
L
H
L
H
H
L
L
L
Page 4
December 1990 4
Philips Semiconductors Product specification
Quad 2-input NOR gate 74HC/HCT02
DC CHARACTERISTICS FOR 74HC
For the DC characteristics see
“74HC/HCT/HCU/HCMOS Logic Family Specifications”
.
Output 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) TEST CONDITIONS
74HC
UNIT
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 to nY
25
9
7
90
18
15
115
23
20
135
27
23
ns
2.0
4.5
6.0
Fig.6
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.6
Page 5
December 1990 5
Philips Semiconductors Product specification
Quad 2-input NOR gate 74HC/HCT02
DC CHARACTERISTICS FOR 74HCT
For the DC characteristics see
“74HC/HCT/HCU/HCMOS Logic Family Specifications”
.
Output capability: standard
ICC category: SSI
Notes 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 LOADCOEFFICIENT
nA, nB 1.50
SYMBOL PARAMETER
T
amb
(°C) TEST CONDITIONS
74HCT
UNIT
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 to nY
11 19 24 29 ns 4.5 Fig.6
t
THL
/ t
TLH
output transition time 7 15 19 22 ns 4.5 Fig.6
Fig.6 Waveforms showing the input (nA, nB) to output (nY) propagation delays and the output transition times.
HC: VM= 50%; VI= GND to V
CC
HCT: VM= 1.3 V; VI= GND to 3 V.
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