MC74F195D 查看數據表（PDF） - Motorola => Freescale
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MC74F195D Datasheet PDF : 4 Pages
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MC74F195
GUARANTEED OPERATING RANGES
Symbol
Parameter
VCC
TA
IOH
IOL
Supply Voltage
Operating Ambient Temperature Range
Output Current High
Output Current Low
Min
Typ
Max
Unit
74
4.5
5.0
5.5
V
74
0
25
70
°C
74
–1.0
mA
74
20
mA
LOGIC DIAGRAM
JK
D0
D1
PE
D2
D3
CP
MR
R RD Q
CP
SQ
R RD
CP
SQ
R RD
CP
SQ
R RD Q
CP
SQ
Q0
Q1
Q2
Q3 Q3
FUNCTION TABLE
Inputs
Outputs
Operating Modes
Asynchronous Reset
MR CP PE J
LXXX
K Dn Q0 Q1 Q2 Q3 Q3
XXL L L LH
Shift, Set First Stage
H
↑
h
h
h
X
H q0 q1 q2 q2
Shift, Reset First Stage
H↑ h
l
l
X
L q0 q1 q2 q2
Shift, Toggle First Stage
H↑
h
h
l
X q0 q0 q1 q2 q2
Shift, Retain First Stage
H↑
h
l
h X q0 q0 q1 q2 q2
Parallel Load
H↑
l
X X dn d0 d1 d2 d3 d3
H = HIGH Voltage Level
L = LOW Voltage Level
X = Don’t Care
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.
↑ = LOW-to-HIGH clock transition
FAST AND LS TTL DATA
4-105
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