74HC243NB 查看數據表（PDF） - Philips Electronics

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74HC243NB

Quad bus transceiver; 3-state

Philips Electronics 

Philips Semiconductors

Quad bus transceiver; 3-state

AC WAVEFORMS

Product specification

74HC/HCT243

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

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

Fig.5 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.6 Waveforms showing the 3-state enable and disable times for input OEB.

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

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

Fig.7 Waveforms showing the 3-state enable and disable times for input OEA.

December 1990

7

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