SN54ALS165, SN74ALS165

PARALLEL-LOAD 8-BIT REGISTERS

SDAS157B – JUNE 1982 – REVISED DECEMBER 1994

4

POST OFFICE BOX 655303

recommended operating conditions

SN54ALS165

SN74ALS165

UNIT

MIN

NOM

MAX

MIN

NOM

MAX

UNIT

VCC

Supply voltage

4.5

5

5.5

4.5

5

5.5

V

VIH

High-level input voltage

2

2

V

VIL

Low-level input voltage

0.7

0.8

V

IOH

High-level output current

– 0.4

– 0.4

mA

IOL

Low-level output current

4

8

mA

fclock

Clock frequency

0

35

0

45

MHz

t (CLK)

Pulse duration CLK (see Figure 1)

CLK high

14

11

ns

tw(CLK)

Pulse duration, CLK (see Figure 1)

CLK low

14

11

ns

tw(load)

Pulse duration, SH/LD low

CLK low

15

12

ns

tsu1

Setup time, clock enable (see Figure 1)

15

11

ns

tsu2

Setup time, parallel input (see Figure 1)

11

10

ns

tsu3

Setup time, serial input (see Figure 2)

11

10

ns

tsu4

Setup time, shift (see Figure 2)

15

10

ns

th

Hold time at any input

4

4

ns

TA

Operating free-air temperature

–55

125

0

70

°C

electrical characteristics over recommended operating free-air temperature range (unless

otherwise noted)

PARAMETER

TEST CONDITIONS

SN54ALS165

SN74ALS165

UNIT

PARAMETER

TEST CONDITIONS

MIN

TYP†

MAX

MIN

TYP†

MAX

UNIT

VIK

VCC = 4.5 V,

II = – 18 mA

– 1.5

– 1.5

V

VOH

VCC = 4.5 V to 5.5 V,

IOH = – 0.4 mA

VCC –2

VCC –2

V

VOL

VCC =4 5V

IOL = 4 mA

0.25

0.4

0.25

0.4

V

VOL

VCC = 4.5 V

IOL = 8 mA

0.35

0.5

V

II

VCC = 5.5 V,

VI = 7 V

0.1

0.1

mA

IIH

VCC = 5.5 V,

VI = 2.7 V

20

20

µA

IIL

VCC = 5.5 V,

VI = 0.4 V

– 0.1

– 0.1

mA

IO‡

VCC = 5.5 V,

VO = 2.25 V

–20

–112

–30

–112

mA

ICC

VCC = 5.5 V,

See Note 1

12

24

12

24

mA

† All typical values are at VCC = 5 V, TA = 25°C.

‡ The output conditions have been chosen to produce a current that closely approximates one half of the true short-circuit output current, IOS.

NOTE 1: With the outputs open, CLK INH and CLK at 4.5 V, and a clock pulse applied to SH/LD, ICC is measured first with the parallel inputs at

4.5 V, then with the parallel inputs grounded.