HD74LS165A

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

Recommended Operating Conditions

Item

Symbol

Min

Typ

Max

Unit

Supply voltage

VCC

4.75

5.00

5.25

V

IOH

—

—

–400

µA

Output current

IOL

—

—

8

mA

Operating temperature

Topr

–20

25

75

°C

Clock frequency

ƒclock

0

—

25

MHz

Clock pulse width

tw (clock)

25

—

—

ns

Load pulse width

tw (load)

15

—

—

ns

Clock enable setup time

tsu

30

—

—

ns

Parallel input setup time

tsu

10

—

—

ns

Serial input setup time

tsu

20

—

—

ns

Shift setup time

tsu

45

—

—

ns

Hold time

th

0

—

—

ns

Electrical Characteristics

(Ta = –20 to +75 °C)

Item

Symbol

min.

typ.*

max.

Unit

Condition

VIH

2.0

—

—

V

Input voltage

VIL

—

—

0.8

V

VOH

2.7

—

—

V

VCC = 4.75 V, VIH = 2 V, VIL = 0.8 V,

IOH = –400

µA

—

—

0.4

IOL = 4 mA

Output voltage

VOL

—

—

0.5

V

IOL = 8 mA

VCC = 4.75 V, VIH = 2 V,

VIL = 0.8 V

Shift / Load

—

—

0.3

mA

Input current

Other inputs

II

—

—

0.1

mA

VCC = 5.25 V, VI = 7 V

Shift / Load

—

—

60

µA

High level

input current

Other inputs

IIH

—

—

20

µA

VCC = 5.25 V, VI = 2.7 V

Shift / Load

—

—

–1.2

mA

Low level input

current

Other inputs

IIL

—

—

–0.4

mA

VCC = 5.25 V, VI = 0.4 V

Short-circuit output current

IOS

–20

—

–100

mA

VCC = 5.25 V

Supply current**

ICC

—

21

36

mA

VCC = 5.25 V

Input clamp voltage

VIK

—

—

–1.5

V

VCC = 4.75 V, IIN = –18 mA

Note:

* VCC = 5 V, Ta = 25°C

**. With the outputs open, clock inhibit and clock at 4.5 V, and a clock pulse applied to the shift / load, ICC is

measured with the parallel inputs at 4.5 V, than with the parallel inputs grounded.

Switching Characteristics

(VCC = 5 V, Ta = 25°C)

Item

Symbol

Inputs

Outputs

min.

typ.

max.

Unit

Condition

Maximum clock frequency

ƒmax

25

35

—

MHz

tPLH

—

21

35

ns

tPHL

Load

Any

—

26

35

ns

tPLH

—

14

25

ns

tPHL

Clock

Any

—

16

25

ns

tPLH

—

13

25

ns

tPHL

H

QH

—

24

30

ns

tPLH

—

19

30

ns

Propagation delay time

tPHL

H

QH

—

17

25

ns

CL = 15 pF,

RL = 2 k

Ω