PI74FCT2240T Просмотр технического описания (PDF) - Pericom Semiconductor
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PI74FCT2240T Datasheet PDF : 7 Pages
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PI74FCT240T/241T/244T/540T/541T (25 ohm Series)
PI74FCT2240T/2241T/2244T/2541T
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Product Pin Description
Pin Name
OEA, OEB
OEB(1)
Dxx
Oxx
GND
VCC
Description
3-State Output Enable Inputs (Active LOW)
3-State Output Enable Input (Active HIGH)
Inputs
Outputs
Ground
Power
PI74FCT240/2240T Product Pin Configuration
Truth Table
Inputs(1)
OEA OEB OEB(2) D
L
L
HL
L
L
HH
HH
LX
Outputs(1)
240 241 244 540 541
HLLHL
LHHLH
ZZZZZ
Note:
1. H = High Voltage Level, X = Don't Care, L = Low
Voltage Level, Z = High Impedance
2. OEB for 241 only.
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
PI74FCT241/2241/244/2244T Product 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
*OEB for 241T, OEB for 244T
PI74FCT540/541/2541T Product Pin Configuration
OEA
D0
D1
D2
D3
D4
D5
D6
D7
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
O0*
O2*
O2*
O3*
O4*
O5*
O6*
O7*
*Ox for 540T, Ox for 541T
2
PS2011B 12/11/00
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