HCF4020BM1(2004) 查看數據表（PDF） - STMicroelectronics

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HCF4020BM1
(Rev.:2004)

RIPPLE-CARRY BINARY COUNTER/DIVIDERS 14 STAGE

STMicroelectronics 

HCF4020B

TEST CIRCUIT

CL = 50pF or equivalent (includes jig and probe capacitance)

RL = 200KΩ

RT = ZOUT of pulse generator (typically 50Ω)

WAVEFORM 1: MINIMUM PULSE WIDTH (RESET) AND REMOVAL TIME (RESET TO Φ) (f=1MHz;

50% duty cycle)

6/11

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