S

1D

R

C1

S

1D

R

C1

S

1D

R

C1

S

1D

R

C1

S

1D

R

C1

S

1D

R

C1

S

1D

R

C1

S

1D

R

C1

1

15

2

10

SH/LD

CLK INH

CLK

SER

9

7

Q

Q

H

H

11

12

13

14

3

4

5

6

A

B

C

D

E

F

G

H

Pin numbers shown are for theD, DB, J, N, NS, PW, and W packages.

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SN54HC165, SN74HC165

SCLS116H – DECEMBER 1982 – REVISED DECEMBER 2015

SNx4HC165 8-Bit Parallel-Load Shift Registers

1 Features

3 Description

The SNx4HC165 devices are 8-bit parallel-load shift

1

•

Wide Operating Voltage Range of 2 V to 6 V

registers that, when clocked, shift the data toward a

•

Outputs Can Drive Up to 10 LSTTL Loads

•

provided by eight individual direct data (A

−H) inputs

that are enabled by a low level at the shift/load

•

(SH/LD) input. The SNx4HC165 devices also feature

•

±4-mA Output Drive at 5 V

a

clock-inhibit

(CLK

INH)

function

and

a

•

Low Input Current of 1 µA Maximum

•

Complementary Outputs

Clocking is accomplished by a low-to-high transition

•

Direct Overriding Load (Data) Inputs

of the clock (CLK) input while SH/LD is held high and

CLK INH is held low. The functions of CLK and CLK

•

Gated Clock Inputs

INH are interchangeable. Because a low CLK and a

•

Parallel-to-Serial Data Conversion

low-to-high transition of CLK INH also accomplish

•

On Products Compliant to MIL-PRF-38535,

clocking, CLK INH must be changed to the high level

All Parameters Are Tested Unless Otherwise

only while CLK is high. Parallel loading is inhibited

Noted. On All Other Products, Production

when SH/LD is held high. While SH/LD is low, the

Processing Does Not Necessarily Include Testing

parallel

inputs

to

the

register

are

enabled

independently of the levels of the CLK, CLK INH, or

of All Parameters.

serial (SER) inputs.

2 Applications

Device Information(1)

•

Programable Logic Controllers

PART NUMBER

PACKAGE

BODY SIZE (NOM)

•

Appliances

SN74HC165D

SOIC (16)

10.00 mm × 6.20 mm

•

Video Display Systems

SN74HC165DB

SSOP (16)

8.20 mm × 6.50 mm

•

Output Expander

SN74HC165N

PDIP (16)

6.60 mm × 18.92 mm

•

Keyboards

SN74HC165NS

SO (16)

8.20 mm × 9.90 mm

SN74HC165PW

TSSOP (16)

6.60 mm × 5.10 mm

SN54HC165FK

LCCC (20)

9.09 mm × 9.09 mm

SN54HC165J

CDIP (16)

21.34 mm × 7.52 mm

SN54HC165W

CFP (16)

9.40 mm × 7.75 mm

(1) For all available packages, see the orderable addendum at

the end of the data sheet.

Logic Diagram Positive Logic

1

An IMPORTANT NOTICE at the end of this data sheet addresses availability, warranty, changes, use in safety-critical applications,

intellectual property matters and other important disclaimers. PRODUCTION DATA.