M74HC4520B1R Просмотр технического описания (PDF) - STMicroelectronics

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M74HC4520B1R

DUAL 4 BIT BINARY COUNTER

STMicroelectronics 

TEST CIRCUIT

M74HC4520

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

RT = ZOUT of pulse generator (typically 50Ω)

WAVEFORM 1: PROPAGATION DELAY, MINIMUM PULSE WIDTH AND REMOVAL TIMES (CLEAR)

(f=1MHz; 50% duty cycle)

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