HCF4021 datasheet(8/13 Pages) STMICROELECTRONICS

No de pièce	HCF4021

Description	Asynchronous parallel input or synchronous serial-in/serial-out 8-stage static shift register

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Fabricant	STMICROELECTRONICS [STMicroelectronics]

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Electrical characteristics

HCF4021

8/13

DocID008216 Rev 3

Figure 4. Test circuit

1. Legend: CL = 50 pF or equivalent (includes jig and probe capacitance), RL = 200 KRT = ZOUT of pulse

generator (typically 50

)

Figure 5. Waveform 1: propagation delay times, clock pulse width

(f = 1 MHz; 50 % duty cycle)

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