Philips Semiconductors
Product specification
Presettable synchronous 4-bit binary
counter; asynchronous reset
74HC/HCT161
AC WAVEFORMS
(1) HC : VM = 50%; VI = GND to VCC
.
HCT: VM = 1.3 V; VI = GND to 3 V.
Fig.8 Waveforms showing the clock (CP) to outputs (Qn, TC) propagation delays, the clock pulse width, the
output transition times and the maximum clock frequency.
(1) HC : VM = 50%; VI = GND to VCC
.
HCT: VM = 1.3 V; VI = GND to 3 V.
Fig.9 Waveforms showing the master reset (MR) pulse width, the master reset to output (Qn, TC) propagation
delays and the master reset to clock (CP) removal time.
(1) HC : VM = 50%; VI = GND to VCC
.
HCT: VM = 1.3 V; VI = GND to 3 V.
Fig.10 Waveforms showing the input (CET) to output (TC) propagation delays and output transition times.
December 1990
11
NXP [ NXP ]
