January 1995 2
Philips Semiconductors Product specification
Quadruple 2-input NAND Schmitt trigger
HEF4093B
gates
DESCRIPTION
The HEF4093B consists of four Schmitt-trigger circuits.
Each circuit functions as a two-input NAND gate with
Schmitt-trigger action on both inputs. The gate switches at
different points for positive and negative-going signals.
The difference between the positive voltage (V
P
) and the
negative voltage (V
N
) is defined as hysteresis voltage
(V
H
).
Fig.1 Functional diagram.
FAMILY DATA, I
DD
LIMITS category GATES
See Family Specifications
HEF4093BP(N): 14-lead DIL; plastic
(SOT27-1)
HEF4093BD(F): 14-lead DIL; ceramic (cerdip)
(SOT73)
HEF4093BT(D): 14-lead SO; plastic
(SOT108-1)
( ): Package Designator North America
Fig.2 Pinning diagram.
Fig.3 Logic diagram (one gate).
