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SN54HC595 Datasheet(PDF) 6 Page - Texas Instruments

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Part No. SN54HC595
Description  8-BIT SHIFT REGISTERS WITH 3-STATE OUTPUT REGISTERS
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Maker  TI [Texas Instruments]
Homepage  http://www.ti.com
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SN54HC595 Datasheet(HTML) 6 Page - Texas Instruments

   
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SN54HC595, SN74HC595
8-BIT SHIFT REGISTERS
WITH 3-STATE OUTPUT REGISTERS
SCLS041B – DECEMBER 1982 – REVISED MAY 1997
6
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
timing requirements over recommended operating free-air temperature range (unless otherwise
noted)
VCC
TA = 25°C
SN54HC595
SN74HC595
UNIT
VCC
MIN
MAX
MIN
MAX
MIN
MAX
UNIT
2 V
0
6
0
4.2
0
5
fclock
Clock frequency
4.5 V
0
31
0
21
0
25
MHz
6 V
0
36
0
25
0
29
2 V
80
120
100
SRCLK or RCLK high or low
4.5 V
16
24
20
t
Pulse duration
6 V
14
20
17
ns
tw
Pulse duration
2 V
80
120
100
ns
SRCLR low
4.5 V
16
24
20
6 V
14
20
17
2 V
100
150
125
SER before SRCLK
4.5 V
20
30
25
6 V
17
25
21
↑†
2 V
75
113
94
SRCLK
↑ before RCLK↑†
4.5 V
15
23
19
t
Setup time
6 V
13
19
16
ns
tsu
Setup time
2 V
50
75
65
ns
SRCLR low before RCLK
4.5 V
10
15
13
6 V
9
13
11
2 V
50
75
60
SRCLR high (inactive) before SRCLK
4.5 V
10
15
12
6 V
9
13
11
2 V
0
0
0
th
Hold time, SER after SRCLK
4.5 V
0
0
0
ns
6 V
0
0
0
† This setup time ensures the output register sees stable data from the shift-register outputs. The clocks may be tied together, in which case the
output register is one clock pulse behind the shift register.


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