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74HC648 Datasheet, PDF (9/12 Pages) NXP Semiconductors – Octal bus transceiver/register; 3-state; inverting
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Philips Semiconductors
Octal bus transceiver/register; 3-state;
inverting
AC WAVEFORMS
Product specification
74HC/HCT648
(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.
December 1990
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