74HC/HCT162 데이터 시트보기 (PDF) - Philips Electronics

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74HC/HCT162

Presettable synchronous BCD decade counter; synchronous reset

Philips Electronics 

Philips Semiconductors

Presettable synchronous BCD decade

counter; synchronous reset

AC WAVEFORMS

Product specification

74HC/HCT162

(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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