MC74F240 查看數據表（PDF） - Motorola => Freescale
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MC74F240 Datasheet PDF : 4 Pages
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MC54/74F240 • MC54/74F241 • MC54/74F244
FUNCTION TABLE
MC54/74F240
Inputs
OEa Ia OEb Ib
L LLL
L HLH
H XHX
Outputs
Ya Yb
HH
LL
ZZ
FUNCTION TABLE
MC54/74F241
Inputs
OEa Ia OEb Ib
L LHL
L HHH
HXLX
Outputs
Ya Yb
LL
HH
ZZ
H = HIGH Voltage Level; L = LOW Voltage Level; X = Don’t Care; Z = High Impedance
GUARANTEED OPERATING RANGES
Symbol
Parameter
VCC
TA
Supply Voltage
Operating Ambient Temperature Range
IOH
Output Current — High
IOL
Output Current — Low
54, 74
54
74
54
74
54
74
FUNCTION TABLE
MC54/74F244
Inputs
OEa Ia
LL
LH
HX
OEb Ib
LL
LH
HX
Outputs
Ya Yb
LL
HH
ZZ
Min
Typ
Max
Unit
4.5
5.0
5.5
V
–55
25
125
°C
0
25
70
–12
mA
–15
48
mA
64
FAST AND LS TTL DATA
4-109
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