74HCT161PW,112 查看數據表（PDF） - NXP Semiconductors.

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74HCT161PW,112

Presettable synchronous 4-bit binary counter; asynchronous reset

NXP Semiconductors. 

Philips Semiconductors

Presettable synchronous 4-bit binary

counter; asynchronous reset

AC WAVEFORMS

Product specification

74HC/HCT161

(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

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