HD74LS195A

Rev.3.00, Jul.15.2005, page 3 of 7

Recommended Operating Conditions

Item

Symbol

Min

Typ

Max

Unit

Supply voltage

4.75

5.00

5.25

V

—

—

–400

µA

Output current

—

—

8

mA

Operating temperature

–20

25

75

°C

Clock frequency

0

—

30

MHz

Clock pulse width

16

—

—

ns

Clear pulse width

12

—

—

ns

Shift / load

25

—

—

ns

Serial and

parallel data

15

—

—

ns

Setup time

Clear

inactive-state

25

—

—

ns

Release time

—

—

5

ns

Hold time

0

—

—

ns

Electrical Characteristics

(Ta = –20 to +75 °C)

Item

Symbol

min.

typ.*

max.

Unit

Condition

2.0

—

—

V

Input voltage

—

—

0.8

V

2.7

—

—

V

µA

—

—

0.4

Output voltage

—

—

0.5

V

—

—

20

µA

—

—

–0.4

mA

Input current

—

—

0.1

mA

Short-circuit output

current

–20

—

–100

mA

Supply current**

—

14

21

mA

Input clamp voltage

—

—

–1.5

V

** With all outputs open, shift / load grounded, and 4.5 V applied to the J,

K, and data inputs, I

applying a momentary ground, followed by 4.5 V, to clear and then applying a momentary ground, followed

by 4.5 V, to clock.

Switching Characteristics

Item

Symbol

Inputs

Outputs

min.

typ.

max.

Unit

Condition

Maximum clock frequency

Clock

30

39

—

MHz

Clear

—

19

30

ns

—

14

22

ns

Propagation delay time

Clock

Q

D

—

17

26

ns

Ω