IDT74FCT540 查看數據表（PDF） - Integrated Device Technology
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IDT74FCT540 Datasheet PDF : 8 Pages
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IDT54/74FCT240/241/244/540/541/A/C
FAST CMOS OCTAL BUFFER/LINE DRIVER
PIN CONFIGURATIONS
IDT54/74FCT240
2529 cnv* 04–09
OEA
DA0
OB0
DA1
OB1
DA2
OB2
DA3
OB3
GND
1
20
2
19
3
18
4 P20-1 17
5 D20-1 16
6 SO20-2 15
&
7 E20-1 14
8
13
9
12
10
11
VCC
OEB
OA0
DB0
OA1
DB1
OA2
DB2
OA3
DB3
DIP/SOIC/CERPACK
TOP VIEW
IDT54/74FCT241/244
OEA
DA0
OB0
DA1
OB1
DA2
OB2
DA3
OB3
GND
1
20
2
19
3
18
4 P20-1 17
5 D20-1 16
6 SO20-2 15
7
&
E20-1
14
8
13
9
12
10
11
VCC
OEB*
OA0
DB0
OA1
DB1
OA2
DB2
OA3
DB3
DIP/SOIC/CERPACK
TOP VIEW
*OEB for 241, OEB for 244
IDT54/74FCT540/541
OEA
D0
D1
D2
D3
D4
D5
D6
D7
GND
1
20
2
19
3
18
4 P20-1 17
5 D20-1 16
6 SO20-2 15
&
7 E20-1 14
8
13
9
12
10
11
VCC
OEB
O0*
O1*
O2*
O3*
O4*
O5*
O6*
O7*
DIP/SOIC/CERPACK
TOP VIEW
*OX for 540, OX for 541
MILITARY AND COMMERCIAL TEMPERATURE RANGES
INDEX
3 2 20 19
DA1 4
1
18 OA0
OB1 5
17 DB0
DA2 6
L20-2
16 OA1
OB2 7
15 DB1
DA3 8
14 OA2
9 10 11 12 13
LCC
TOP VIEW
INDEX
3 2 20 19
DA1 4
1
18 OA0
OB1 5
17 DB0
DA2 6
L20-2 16 OA1
OB2 7
15 DB1
DA3 8
14 OA2
9 10 11 12 13
LCC
TOP VIEW
INDEX
3 2 20 19
D2
4
1
18 O0*
D3
5
17 O1*
D4
6
L20-2
16 O2*
D5
7
15 O3*
D6
8
14 O4*
9 10 11 12 13
LCC
TOP VIEW
2606 cnv* 04–09
7.8
2
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