74HC02 datasheet(5/5 Pages) PHILIPS

5 / 5 page

December 1990

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 (

∆ICC) 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

Tamb (°C)

TEST CONDITIONS

74HCT

UNIT

VCC

(V)

WAVEFORMS

+25

−40 to+85

−40 to+125

min.

typ.

max.

min.

max.

min.

max.

tPHL/ tPLH

propagation delay

nA, nB to nY

4.5

Fig.6

tTHL/ tTLH

output transition time

4.5

Fig.6

Waveforms showing the input (nA, nB) to output (nY) propagation delays and the output transition times.

HC: VM = 50%; VI = GND to VCC

HCT: VM = 1.3 V; VI = GND to 3 V.

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