HEC4085B 查看數據表（PDF） - Philips Electronics

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HEC4085B

Dual 2-wide 2-input AND-OR-invert gate

Philips Electronics 

Philips Semiconductors

Dual 2-wide 2-input AND-OR-invert gate

DESCRIPTION

The HEF4085B is a dual 2-wide 2-input AND-OR-invert

gate, each with an additional input (A4 or B4) which can be

used as either an expander input or an inhibit input. A

HIGH on A4 or B4 forces the output (OA or OB) LOW

independent of the other inputs (A0 to A3 or B0 to B3). The

outputs OA and OB are fully buffered for highest noise

immunity and pattern insensitivity of output impedance.

Product specification

HEF4085B

gates

Fig.2 Pinning diagram.

HEF4085BP(N): 14-lead DIL; plastic

(SOT27-1)

HEF4085BD(F): 14-lead DIL; ceramic (cerdip)

(SOT73)

HEF4085BT(D): 14-lead SO; plastic

(SOT108-1)

( ): Package Designator North America

Fig.1 Functional diagram.

Fig.3 Logic diagram (one gate).

January 1995

2

LOGIC FUNCTION

OA = A0 ⋅ A1 + A2 ⋅ A3 + A4

OB = B0 ⋅ B1 + B2 ⋅ B3 + B4

FAMILY DATA,

IDD LIMITS category GATES

See Family Specifications

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