74HC163 データシートの表示（PDF） - Philips Electronics

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74HC163

Presettable synchronous 4-bit binary counter; synchronous reset

Philips Electronics 

Philips Semiconductors

Presettable synchronous 4-bit binary

counter; synchronous reset

AC WAVEFORMS

Product specification

74HC/HCT163

(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 input (CET) to output (TC) propagation delays and output transition times.

The shaded areas indicate when the input is

permitted to change for predictable output

performance.

(1) HC : VM = 50%; VI = GND to VCC.

HCT: VM = 1.3 V; VI = GND to 3 V.

Fig.10 Waveforms showing the set-up and hold times for the input (Dn) and parallel enable input (PE).

December 1990

10

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