74HCT4511 查看數據表（PDF） - Philips Electronics

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74HCT4511

BCD to 7-segment latch/decoder/driver

Philips Electronics 

Philips Semiconductors

BCD to 7-segment latch/decoder/driver

AC WAVEFORMS

Product specification

74HC/HCT4511

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

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

Fig.8 Waveforms showing the input (Dn, LT) to

output (Qn) 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.9 Waveforms showing the input (LE) to output

(Qn) propagation delays and the latch

enable pulse width.

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

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

Fig.10 Waveforms showing the input (BI) to output

(Qn) propagation delays.

The shaded areas indicate when the input is

permitted to change for predictable output

performance.

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

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

Fig.11 Waveforms showing the data set-up and

hold times for Dn input to LE input.

December 1990

10

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