Philips Semiconductors

Product specification

74F598

8-bit shift register with input storage registers (3-State)

1991 Oct 21

10

AC WAVEFORMS

VM

VM

VM

tw(H)

1/fmax

VM

VM

tPLH

tw(L)

tPHL

I/On,

Qs

STCP,

SHCP,

SHLD,

SHRST

SF00380

Waveform 1. Propagation delay for clock input to output, clock

pulse widths, and maximum clock frequency, shift register

reset and load inputs to serial data output

SHRST

VM

VM

VM

SHCP

trec

VM

I/On,

Qs

tPHL

SF00381

Waveform 2. Propagation delay for shift register reset to serial

data output, shift register reset to shift register, shift register

input recovery time

VM

VM

VM

VM

VM

VM

ts(L)

th(L)

ts(H)

th(H)

Dsn, I/On,

SHCP,

SHLD,

SHCPEN

SHCP,

STCP

SHLD

SF00382

Waveform 3. Setup time and hold times

VM

VM

STCP

SHLD

ts(H)

VM

th(L)

SF00383

Waveform 4. Setup time and hold time

VM

VM

VM

tPHZ

tPZH

OE

I/On

VOH -0.3V

0V

10%

90%

SF00384

Waveform 5. 3-State output enable time to High level, output

disable time from High level and transition time to High level

VM

VM

VM

tPLZ

tPZL

VOL +0.3V

3.5V

10%

90%

OE

I/On

SF00385

Waveform 6. 3-State output enable time to Low level, output

disable time from Low level and transition time to Low level

Notes to AC waveforms

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