5-530

FAST AND LS TTL DATA

SN54/74LS375

Q (SN54LS/74LS375 ONLY)

DATA

ENABLE

TO OTHER LATCH

Q

LOGIC DIAGRAM

GUARANTEED OPERATING RANGES

Symbol

Parameter

Min

Typ

Max

Unit

VCC

Supply Voltage

54

74

4.5

4.75

5.0

5.0

5.5

5.25

V

TA

Operating Ambient Temperature Range

54

74

– 55

0

25

25

125

70

°C

IOH

Output Current — High

54, 74

– 0.4

mA

IOL

Output Current — Low

54

74

4.0

8.0

mA

Symbol

Parameter

Limits

Unit

Test Conditions

Symbol

Parameter

Min

Typ

Max

Unit

Test Conditions

tW

Enable Pulse Width

20

ns

VCC = 5.0 V

ts

Setup Time

20

ns

VCC = 5.0 V

th

Hold Time

0

ns

CC = 5.0 V

D

E

Q

Q

1.3 V

1.3 V

1.3 V

1.3 V

1.3 V

1.3 V

1.3 V

1.3 V

1.3 V

tPLH

tPLH

tPLH

tPLH

tPHL

tPHL

tPHL

tPHL

ts

th

AC WAVEFORMS

DEFINITION OF TERMS

SETUP TIME (ts) — is defined as the minimum time required

for the correct logic level to be present at the logic input prior to

the clock transition from LOW-to-HIGH in order to be recog-

nized and transferred to the outputs.

HOLD TIME (th) — is defined as the minimum time following

the clock transition from LOW-to-HIGH that the logic level

must be maintained at the input in order to ensure continued

recognition. A negative HOLD TIME indicates that the correct

logic level may be released prior to the clock transition from

LOW-to-HIGH and still be recognized.