参数资料
型号: 54F241FMQB
厂商: NATIONAL SEMICONDUCTOR CORP
元件分类: 总线收发器
英文描述: F/FAST SERIES, DUAL 4-BIT DRIVER, TRUE OUTPUT, CDFP20
封装: CERAMIC, FP-20
文件页数: 4/10页
文件大小: 400K
代理商: 54F241FMQB
Unit LoadingFan Out
54F74F
Pin Names
Description
UL
Input IIH IIL
HIGHLOW
Output IOH IOL
OE1 OE2
TRI-STATE Output Enable Input (Active LOW)
101667
20 mA b1mA
OE2
TRI-STATE Output Enable Input (Active HIGH)
101667
20 mA b1mA
I0–I7
Inputs (’F240)
101667
20 mA b1mA
I0–I7
Inputs (’F241 ’F244)
102667
20 mA b16 mA
O0–O7 O0–O7
Outputs
6001066 (80)
b
12 mA64 mA (48 mA)
Worst-case ’F240 enabled ’F241 ’F244 disabled
Truth Tables
’F240
OE1
D1n
O1n
OE2
D2n
O2n
HX
Z
HX
Z
LH
L
LH
L
LL
H
LL
H
’F241
OE1
D1n
O1n
OE2
D2n
O2n
HX
Z
L
X
Z
LH
H
LL
L
H
L
’F244
OE1
D1n
O1n
OE2
D2n
O2n
HX
Z
HX
Z
LH
H
LH
H
LL
L
LL
L
H e HIGH Voltage Level
L e LOW Voltage Level
X e Immaterial
Z e High Impedance
3
Obsolete
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