PI74FCT2244T_04 Просмотр технического описания (PDF) - Pericom Semiconductor
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PI74FCT2244T_04 Datasheet PDF : 7 Pages
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PI74FCT244T/2244T
PI74FCT541T/2541T
Octal Buffer/Line Drivers
Product Pin Description
Pin Name Description
OEA, OEB 3-State Output Enable Inputs (Active LOW)
OEB(1)
3-State Output Enable Input (Active HIGH)
Dxx
Inputs
Oxx
Outputs
GND
Ground
VCC
Power
Truth Table
Inputs(1)
OEA OEB OEB(2) D
Outputs(1)
244
541
LL
H
L
L
L
LL
H
H
H
H
HH
L
X
Z
Z
Note:
1. H = High Voltage Level, X = Don't Care, L = Low
Voltage Level, Z = High Impedance
2. OEB for 241 only.
PI74FCT241/2241/244/2244T Pin Configuration PI74FCT540/541/2541T Pin Configuration
OEA
DA0
OB0
DA1
OB1
DA2
OB2
DA3
OB3
GND
1
20
2
19
3 20-Pin 18
4 H20 17
5 L20 16
6 P20 15
7 Q20 14
8 R20 13
9 S20 12
10
11
Vcc
OEB
OA0
DB0
OA1
DB1
OA2
DB2
OA3
DB3
OEA
D0
D1
D2
D3
D4
D5
D6
D7
GND
1
20
2
3
4
20-Pin
H20
19
18
17
5 L20 16
6 P20 15
7 Q20 14
8 R20 13
9 S20 12
10
11
Vcc
OEB
O0*
O1*
O2*
O3*
O4*
O5*
O6*
O7*
2
PS2011D
09/22/04
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