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參數(shù)資料
| 型號： | 74F195A |
| 廠商： | NXP Semiconductors N.V. |
| 英文描述： | 4-bit parallel-access shift register(4位并行訪問移位寄存器) |
| 中文描述： | 4位并行存取移位寄存器（4位并行訪問移位寄存器） |
| 文件頁數(shù)： | 4/10頁 |
| 文件大?。?/td> | 74K |
| 代理商： | 74F195A |
Philips Semiconductors
Product specification
74F195A
4-bit parallel-access shift register
1996 Mar 12
4
FUNCTION TABLE
INPUTS
OUTPUTS
OPERATING MODES
MR
CP
PE
J
K
Dn
Q0
Q1
Q2
Q3
Q3
L
X
X
X
X
X
L
L
L
L
H
Reset (clear)
H
↑
h
h
h
X
H
q0
q1
q2
q2
Shift, set First stage
H
↑
h
l
l
X
L
q0
q1
q2
q2
Shift, reset First stage
H
↑
h
h
l
X
q0
q0
q1
q2
q2
Shift, toggle First stage
H
↑
h
l
h
X
q0
q0
q1
q2
q2
Shift, retain First stage
H = High voltage level
h = High voltage level one setup time prior to Low-to-High clock transition
L = Low voltage level
l = Low voltage level one setup time prior to Low-to-High clock transition
X = Don’t care
↑
= Low-to-High clock transition
dn(qn) = Lower case letters indicate the state of the referenced input (or output) one setup time prior to the Low-to-High clock transition.
ABSOLUTE MAXIMUM RATINGS
(Operation beyond the limits set forth in this table may impair the useful life of the device.
Unless otherwise noted these limits are over the operating free-air temperature range.)
SYMBOL
PARAMETER
RATING
UNIT
V
CC
Supply voltage
–0.5 to +7.0
V
V
IN
Input voltage
–0.5 to +7.0
V
I
IN
Input current
–30 to +5
mA
V
OUT
Voltage applied to output in High output state
–0.5 to +V
CC
V
I
OUT
Current applied to output in Low output state
40
mA
T
amb
Operating free-air temperature range
0 to +70
°
C
T
stg
Storage temperature
–65 to +150
°
C
RECOMMENDED OPERATING CONDITIONS
SYMBOL
PARAMETER
LIMITS
UNIT
MIN
NOM
MAX
V
CC
Supply voltage
4.5
5.0
5.5
V
V
IH
High-level input voltage
2.0
V
V
IL
Low-level input voltage
0.8
V
I
IK
Input clamp current
–18
mA
I
OH
High-level output current
–1
mA
I
OL
Low-level output current
20
mA
T
amb
Operating free-air temperature range
0
70
°
C
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| 74F199 | 制造商:PHILIPS 制造商全稱:NXP Semiconductors 功能描述:8-bit parallel-access shift register |
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