4002 Dual 4 Input NOR Gate CMOS Logic IC

Description

4002 Dual 4 Input
NOR Gate CMOS
Logic IC

The
4002
is a high-speed CMOS dual 4-input NOR gate implemented in silicon-gate HC logic. Each device contains two independent NOR gates, each with four inputs, allowing compact implementation of multi-input NOR logic in digital systems. Built with CMOS technology, the device combines the switching speed associated with bipolar/LSTTL logic and the low static power consumption of CMOS, making it suitable for battery-sensitive and moderate-speed applications.

Physically available in DIP, SOIC and TSSOP housings, the HC4002 is pin-compatible with standard LS family logic for easy replacement or mixed-family designs. It is designed to drive typical LSTTL loads directly while providing high noise immunity and wide operating temperature performance, so the same part can be used across a variety of environments without re-engineering the gate-level layout.

Engineers often choose the 4002 where simple, compact NOR logic is required for address decoding, control gating, priority logic or combining multiple conditional signals. Its straightforward truth-table behavior and stable CMOS characteristics make it a durable building block in both commercial and more demanding industrial or military systems.

Features:

Dual 4-input NOR gates in a single 14-pin package.

Silicon-gate HC CMOS technology: LSTTL-like speed with low power consumption.

Typical propagation delay ≈ 8 ns (VCC = 5 V, CL = 15 pF, TA = 25 °C).

Ability to drive 10 LSTTL loads (standard outputs).

Wide recommended supply range (HC types: 2 V to 6 V).

High noise immunity (NIL/NIH ≈ 30% of VCC at VCC = 5 V).

Wide ambient temperature range (–55 °C to +125 °C for specified devices).

Specifications:

Parameter

Value (from datasheet)

Function:

Dual 4-Input NOR Gate.

Recommended VCC (HC):

2.0 V to 6.0 V.

Absolute maximum VCC:

–0.5 V to +7.0 V.

Typical propagation delay:

8 ns (VCC = 5 V, CL = 15 pF, TA = 25 °C).

Input leakage (II):

typ ±0.1 μA (VI = VCC or GND, at 6 V).

Supply current (ICC):

typ 2 μA (at 6 V, 25 °C); up to 40 μA over full temp at 6 V.

IO (output source/sink) absolute max per pin:

±25 mA (absolute-maximum rating).

Input threshold levels (VIH / VIL):

VIH ≈ 0.75·VCC (VCC); VIL ≈ 0.25·VCC (see datasheet table).

Operating temperature:

–55 °C to +125 °C

Package options:

PDIP, SOIC, TSSOP, CDIP

Applications:

General-purpose digital logic.

Interface to LSTTL / mixed-logic systems.

Address decoding and control gating.

Industrial / military temperature-range systems.

Package Contents:

1x
4002 Dual 4 Input NOR Gate CMOS Logic IC

Datasheet