Philips Semiconductors

Product specification

74F674

16-bit serial/parallel-in, serial-out shift register (3-State)

1989 Feb 05

5

AC WAVEFORMS

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

tW(H)

CP

SI/O

VM

VM

VM

VM

VM

1/fMAX

tW(L)

tPHL

tPLH

SF01192

Waveform 1. Propagation Delay, Clock Input to Output,

Clock Pulse Width, and Maximum Clock Frequency

VM

VM

VM

VM

VM

VM

ts(H)

ts(L)

th(H)

th(L)

CP

Dn, CS,

M, R/W,

SI/O

SF01193

Waveform 2. Setup and Hold Times

CS, R/W

SI/O

0V

SF01194

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

and Output Disable Time from High Level

CS, R/W

SI/O

SF01195

Waveform 4. 3-State Output Enable Time to Low Level

and Output Disable Time from Low Level

TEST CIRCUIT AND WAVEFORM

tw

90%

VM

10%

90%

VM

10%

90%

VM

10%

90%

VM

10%

NEGATIVE

PULSE

POSITIVE

PULSE

tw

AMP (V)

0V

0V

tTHL (tf )

INPUT PULSE REQUIREMENTS

rep. rate

1MHz

500ns

2.5ns

2.5ns

Input Pulse Definition

VCC

family

74F

D.U.T.

PULSE

GENERATOR

RL

CL

RT

VIN

VOUT

Test Circuit for 3-State Outputs

DEFINITIONS:

see AC electrical characteristics for value.

see AC electrical characteristics for value.

pulse generators.

tTHL (tf )

tTLH (tr )

tTLH (tr )

AMP (V)

amplitude

3.0V

1.5V

RL

7.0V

SF00777

TEST

SWITCH

closed

closed

All other

open

SWITCH POSITION