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SN54HC166 Datasheet(PDF) 6 Page - Texas Instruments

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Part No. SN54HC166
Description  8-BIT PARALLEL-LOAD SHIFT REGISTERS
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Maker  TI [Texas Instruments]
Homepage  http://www.ti.com
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SN54HC166 Datasheet(HTML) 6 Page - Texas Instruments

   
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SN54HC166, SN74HC166
8-BIT PARALLEL-LOAD SHIFT REGISTERS
SCLS117B – 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
SN54HC166
SN74HC166
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
100
150
125
CLR low
4.5 V
20
30
25
t
Pulse duration
6 V
17
26
21
ns
tw
Pulse duration
2 V
80
120
100
ns
CLK high or low
4.5 V
16
24
20
6 V
14
20
17
2 V
145
220
180
SH/LD high before CLK
4.5 V
29
44
36
6 V
25
38
31
2 V
80
120
100
SER before CLK
4.5 V
16
24
20
6 V
14
20
17
2 V
100
150
125
tsu
Setup time
CLK INH low before CLK
4.5 V
20
30
25
ns
6 V
17
26
21
2 V
80
120
100
Data before CLK
4.5 V
16
24
20
6 V
14
20
17
2 V
40
60
50
CLR inactive before CLK
4.5 V
8
12
10
6 V
7
10
9
2 V
0
0
0
SH/LD high after CLK
4.5 V
0
0
0
6 V
0
0
0
2 V
5
5
5
SER after CLK
4.5 V
5
5
5
th
Hold time
6 V
5
5
5
ns
th
Hold time
2 V
0
0
0
ns
CLK INH high after CLK
4.5 V
0
0
0
6 V
0
0
0
2 V
5
5
5
Data after CLK
4.5 V
5
5
5
6 V
5
5
5


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