SN54HC165, SN74HC165

SCLS116H – DECEMBER 1982 – REVISED DECEMBER 2015

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over recommended operating free-air temperature range for both the SN74HC165 and SN54HC165 (unless otherwise noted)

MIN

MAX

UNIT

2 V

80

SH/LD high before CLK

↑

4.5 V

16

6 V

14

2 V

40

SER before CLK

↑

4.5 V

8

6 V

7

2 V

100

Set-up time

CLK INH low before CLK

↑

4.5 V

20

ns

6 V

17

2 V

40

CLK INH high before CLK

↑

4.5 V

8

6 V

7

2 V

100

Data before SH/LD

↓

4.5 V

20

6 V

17

2 V

5

SER data after CLK

↑

4.5 V

5

6 V

5

Hold time

ns

2 V

5

PAR data after SH/LD

↓

4.5 V

5

6 V

5

6.12 Timing Requirements, SN54HC165

MIN

MAX

UNIT

2 V

4.2

Clock frequency

4.5 V

21

MHz

6 V

25

2 V

120

SH/LD low

4.5 V

24

6 V

20

Pulse duration

ns

2 V

120

CLK high or low

4.5 V

24

6 V

20

8

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