Philips Semiconductors
Product specification
8-input multiplexer; 3-state
74HC/HCT251
AC WAVEFORMS
(1) HC : VM = 50%; VI = GND to VCC
.
HCT: VM = 1.3V; VI = GND to 3 V.
Fig.6 Waveforms showing the multiplexer input (In) and select input (Sn) to output (Y) propagation delays and
the output transition times.
(1) HC : VM = 50%; VI = GND to VCC
.
HCT: VM = 1.3V; VI = GND to 3 V.
Fig.7 Waveforms showing the multiplexer input (In) and select input (Sn) to output (Y) propagation delays and
the output transition times.
(1) HC : VM = 50%; VI = GND to VCC
.
HCT: VM = 1.3V; VI = GND to 3 V.
Fig.8 Waveforms showing the 3-state enable and disable times.
PACKAGE OUTLINES
See “74HC/HCT/HCU/HCMOS Logic Package Outlines”.
December 1990
7
NXP [ NXP ]
