Datasheet

December 1990 10
Philips Semiconductors Product specification
8-bit addressable latch 74HC/HCT259
AC WAVEFORMS
Fig.6 Waveforms showing the enable input (LE) to output (Q
n
) propagation delays, the enable input pulse width
and the output transition times.
(1) HC : V
M
= 50%; V
I
= GND to V
CC
.
HCT: V
M
= 1.3 V; V
I
= GND to 3 V.
Fig.7 Waveforms showing the data input (D) to output (Q
n
) propagation delays and the output transition times.
(1) HC : V
M
= 50%; V
I
= GND to V
CC
.
HCT: V
M
= 1.3 V; V
I
= GND to 3 V.
Fig.8 Waveforms showing the address inputs (A
n
) to outputs (Q
n
) propagation delays and the output transition
times.
(1) HC : V
M
= 50%; V
I
= GND to V
CC
.
HCT: V
M
= 1.3 V; V
I
= GND to 3 V.