74ALS573B 데이터 시트보기 (PDF) - Philips Electronics

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74ALS573B

Latch flip–flop

Philips Electronics 

Philips Semiconductors

Latch/flip-flop

Product specification

74ALS573B/74ALS574A

AC WAVEFORMS

For all waveforms, VM = 1.3V.

The shaded areas indicate when the input is permitted to change for predictable output performance.

CP VM

1/fmax

tw(H)

tPLH

VM

tw(L)

VM

tPHL

Qn

VM

VM

SF00258

Waveform 1. Propagation Delay for Clock Input to Output,

Clock Pulse Widths, and Maximum Clock Frequency

tw(H)

E VM

VM

tPHL

Qn

VM

VM

tPLH

VM

SF00259

Waveform 2. Propagation Delay for Enable to Output and

Enable Pulse Width

Dn VM

tPLH

VM

tPHL

Qn

VM

VM

SF00260

Waveform 3. Propagation Delay for Data to Output

Dn

VM

VM

tsu(H) th(H)

E

VM

VM

tsu(L)

VM

th(L)

VM

SF00261

Waveform 4. Data Setup Time and Hold Times

Dn

VM

VM

tsu(H) th(H)

CP

VM

VM

tsu(L)

VM

th(L)

VM

SF00262

Waveform 5. Data Setup Time and Hold Times

OE

VM

tPZH

VM

tPHZ

VOH -0.3V

Qn

VM

0V

SC00099

Waveform 6. 3-State Output Enable Time to High Level and

Output Disable Time from High Level

OE

VM

VM

tPZL

tPLZ

Qn

VM

3.5V

VOL +0.3V

SC00100

Waveform 7. 3-State Output Enable Time to Low Level and

Output Disable Time from Low Level

1991 Feb 08

8

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