74F195A Просмотр технического описания (PDF) - Philips Electronics
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74F195A Datasheet PDF : 10 Pages
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Philips Semiconductors
4-bit parallel-access shift register
Product specification
74F195A
FUNCTION TABLE
INPUTS
MR
CP
PE
J
OUTPUTS
K
Dn
Q0
Q1
Q2
Q3
Q3
OPERATING MODES
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
VCC
VIN
IIN
VOUT
IOUT
Tamb
Tstg
Supply voltage
Input voltage
Input current
Voltage applied to output in High output state
Current applied to output in Low output state
Operating free-air temperature range
Storage temperature
RATING
–0.5 to +7.0
–0.5 to +7.0
–30 to +5
–0.5 to +VCC
40
0 to +70
–65 to +150
UNIT
V
V
mA
V
mA
°C
°C
RECOMMENDED OPERATING CONDITIONS
SYMBOL
PARAMETER
VCC
VIH
VIL
IIK
IOH
IOL
Tamb
Supply voltage
High-level input voltage
Low-level input voltage
Input clamp current
High-level output current
Low-level output current
Operating free-air temperature range
LIMITS
MIN
NOM
MAX
4.5
5.0
5.5
2.0
0.8
–18
–1
20
0
70
UNIT
V
V
V
mA
mA
mA
°C
1996 Mar 12
4
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