HCF4520BM1 查看數據表（PDF） - STMicroelectronics
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HCF4520BM1 Datasheet PDF : 12 Pages
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HCF4520B
WAVEFORM 2 : PROPAGATION DELAY TIME, MINIMUM PULSE WIDTH (f=1MHz; 50% duty cycle)
TYPICAL APPLICATION
RIPPLE CASCADING OF FOUR COUNTERS WITH POSITIVE-EDGE TRIGGERING
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