January 1995

2

Philips Semiconductors

Product specification

Quadruple 2-input NOR gate

HEF4001UB

gates

DESCRIPTION

The HEF4001UB is a quadruple 2-input NOR gate. This

unbuffered single stage version provides a direct

implementation of the NOR function. The output

impedance and output transition time depends on the input

voltage and input rise and fall times applied.

Fig.1 Functional diagram.

HEF4001UBP(N):

14-lead DIL; plastic

(SOT27-1)

HEF4001UBD(F):

14-lead DIL; ceramic (cerdip)

(SOT73)

HEF4001UBT(D):

14-lead SO; plastic

(SOT108-1)

( ): Package Designator North America

Fig.2 Pinning diagram.

Fig.3

Schematic diagram (one gate). The

splitting-up of the p-transistors provide

identical inputs.