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參數(shù)資料
| 型號(hào)： | PC74HC594T |
| 廠商： | NXP SEMICONDUCTORS |
| 元件分類： | 通用總線功能 |
| 英文描述： | 8-bit shift register with output register |
| 中文描述： | HC/UH SERIES, 8-BIT RIGHT SERIAL IN PARALLEL OUT SHIFT REGISTER, TRUE OUTPUT, PDSO16 |
| 文件頁數(shù)： | 8/10頁 |
| 文件大?。?/td> | 71K |
| 代理商： | PC74HC594T |
December 1991
8
Philips Semiconductors
Product specification
8-bit shift register with output register
74HC/HCT594
DC CHARACTERISTICS FOR
74HCT
For the DC characteristics, see
“74HC/HCT/HCU/HCMOS Logic
Family Specifications”
.
Output capability: parallel outputs,
bus driver; serial output, standard.
I
CC
category: MSI.
Note to HCT types
The value of additional quiescent
supply current (
I
CC
) for a unit load of
1 is given in the family specifications.
To determine
I
CC
per input, multiply
this value by the unit load coefficient
shown in the following table.
INPUT
UNIT LOAD
COEFFICIENT
D
s
SH
R
SH
CP
ST
CP
ST
R
0.25
1.50
1.50
1.50
1.50
AC CHARACTERISTICS FOR 74HCT
GND = 0 V; t
r
= t
f
= 6 ns; C
L
= 50 pF.
SYMBOL
PARAMETER
T
amb
(
°
C)
UNIT
TEST CONDITIONS
+25
40 to +85
40 to +125
V
CC
(V)
WAVEFORMS
min.
typ.
max. min.
max.
min.
max.
t
PHL
/t
PLH
propagation delay
SH
CP
to Q
7
’
propagation delay
ST
CP
to Q
n
propagation delay
SH
R
to Q
7
’
propagation delay
ST
R
to Q
n
shift clock pulse width
HIGH or LOW
storage clock pulse
width HIGH or LOW
shift and storage reset
pulse width HIGH or
LOW
set-up time D
s
to SH
CP
18
32
40
48
ns
4.5
Fig.7
18
32
40
48
ns
4.5
Fig.8
t
PHL
17
30
38
45
ns
4.5
Fig.11
17
30
38
45
ns
4.5
Fig.12
t
W
16
4
20
24
ns
4.5
Fig.7
16
4
20
24
ns
4.5
Fig.8
16
6
20
24
ns
4.5
Fig.11 and Fig.12
t
su
20
4
25
30
ns
4.5
Fig.9
set-up time
SH
R
to ST
CP
set-up time
SH
CP
to ST
CP
hold time D
s
to SH
CP
20
6
25
30
ns
4.5
Fig.10
20
7
25
30
ns
4.5
Fig.8
t
h
5
3
6
7
ns
4.5
Fig.9
t
rem
removal time
SH
R
to SH
CP
,
ST
R
to ST
CP
maximum clock
frequency
SH
CP
or ST
CP
10
5
13
15
ns
4.5
Fig.11 and Fig.12
f
max
30
92
24
20
MHz
4.5
Fig.7 and Fig.8
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