74HC646D-T View Datasheet(PDF) - NXP Semiconductors.

Part Name

Description

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74HC646D-T

Octal bus transceiver/register; 3-state

NXP Semiconductors. 

Philips Semiconductors

Octal bus transceiver/register; 3-state

AC WAVEFORMS

Product specification

74HC/HCT646

(1) HC : VM = 50%; VI = GND to VCC.

HCT: VM = 1.3 V; VI = GND to 3 V.

Fig.6 Waveforms showing the input An, Bn to output Bn, An propagation delays and the output transition times.

(1) HC : VM = 50%; VI = GND to VCC.

HCT: VM = 1.3 V; VI = GND to 3 V.

Fig.7 Waveforms showing the An,Bn to CPAB, CPBA set-up and hold times, clock CPAB,CPBA pulse width,

maximum clock pulse frequency and the CPAB,CPBA to output Bn,An propagation delays.

(1) HC : VM = 50%; VI = GND to VCC.

HCT: VM = 1.3 V; VI = GND to 3 V.

Fig.8 Waveforms showing the input SAB,SBA to output Bn,An propagation delays and output transition times.

September 1993

9

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