SN54HC164, SN74HC164
8-BIT PARALLEL-OUT SERIAL SHIFT REGISTERS
SCLS115D – DECEMBER 1982 – REVISED AUGUST 2003
timing requirements over recommended operating free-air temperature range (unless otherwise
noted)
VCC
2V
fclock
Clock frequency
4.5 V
6V
2V
CLR low
tw
Pulse duration
CLK high or low
4.5 V
6V
2V
4.5 V
6V
2V
Data
tsu
Setup time before CLK↑
CLR inactive
4.5 V
6V
2V
4.5 V
6V
2V
th
Hold time, data after CLK↑
4.5 V
6V
100
20
17
80
16
14
100
20
17
100
20
17
5
5
5
TA = 25°C
MIN
MAX
6
31
36
150
30
25
120
24
20
150
30
25
150
30
25
5
5
5
SN54HC164
MIN
MAX
4.2
21
25
125
25
21
100
20
18
125
25
21
125
25
21
5
5
5
ns
ns
ns
SN74HC164
MIN
MAX
5
25
28
MHz
UNIT
switching characteristics over recommended operating free-air temperature range, C
L
= 50 pF
(unless otherwise noted) (see Figure 1)
PARAMETER
FROM
(INPUT)
TO
(OUTPUT)
VCC
2V
fmax
4.5 V
6V
2V
tPHL
CLR
Any Q
4.5 V
6V
2V
tpd
CLK
Any Q
4.5 V
6V
2V
tt
4.5 V
6V
TA = 25°C
MIN
TYP
MAX
6
31
36
10
54
62
140
28
24
115
23
20
38
8
6
205
41
35
175
35
30
75
15
13
SN54HC164
MIN
4.2
21
25
295
59
51
265
53
45
110
22
19
MAX
SN74HC164
MIN
5
25
28
255
51
46
220
44
38
95
19
16
ns
ns
MHz
MAX
UNIT
operating characteristics, T
A
= 25°C
PARAMETER
Cpd
Power dissipation capacitance
TEST CONDITIONS
No load
TYP
135
UNIT
pF
POST OFFICE BOX 655303
•
DALLAS, TEXAS 75265
5
TI [ TEXAS INSTRUMENTS ]
