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CY74FCT240TQSOP

更新时间： 2024-02-03 14:17:20
品牌 Logo 应用领域
德州仪器 - TI 驱动器
页数 文件大小 规格书
8页 100K
描述
8-Bit Buffers/Line Drivers

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CY74FCT240TQSOP 数据手册

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CY54/74FCT240T  
CY54/74FCT244T  
SCCS017 - May 1994 - Revised February 2000  
8-Bit Buffers/Line Drivers  
• Sink current  
Source current  
64 mA (Com’l), 48 mA (Mil)  
32 mA (Com’l), 12 mA (Mil)  
Features  
• Function, pinout, and drive compatible with FCT and  
F logic  
Functional Description  
• FCT-D speed at 3.6 ns max. (Com’l FCT244 only),  
FCT-C speed at 4.1 ns max. (Com’l),  
The FCT240T and FCT244T are octal buffers and line drivers  
designed to be employed as memory address drivers, clock  
drivers, and bus-oriented transmitters/receivers. The devices  
provide speed and drive capabilities equivalent to their fastest  
bipolar logic counterparts while reducing power consumption. The  
input and output voltage levels allow direct interface with TTL,  
NMOS, and CMOS devices without external components.  
FCT-A speed at 4.8 ns max. (Com’l)  
• Reduced VOH (typically = 3.3V) versions of equivalent  
FCT functions  
• Edge-rate control circuitry for significantly improved  
noise characteristics  
• Power-off disable feature  
• ESD > 2000V  
• Matched rise and fall times  
The outputs are designed with a power-off disable feature to  
allow for live insertion of boards.  
• Fully compatible with TTL input and output logic levels  
• Extended commercial range of −40˚C to +85˚C  
Logic Block Diagram  
FCT240T  
FCT244T  
OE  
A
OE  
A
OE  
B
OE  
B
DA  
0
OA  
0
DA  
0
OA  
0
DB  
0
OB  
0
DB  
0
OB  
0
DA  
1
OA  
1
DA  
1
OA  
1
OB  
1
DB  
1
OB  
1
DB  
1
DA  
2
OA  
2
DA  
2
OA  
2
OB  
2
DB  
2
OB  
2
DB  
2
DA  
3
OA  
3
DA  
3
OA  
3
DB  
OB  
3
3
DB  
OB  
3
3
FCT240T–1  
FCT240T–4  
Pin Configurations  
DIP/SOIC/QSOP  
Top View  
DIP/SOIC/QSOP  
Top View  
LCC  
LCC  
Top View  
Top View  
1
1
20  
20  
OE  
A
V
CC  
OE  
A
V
CC  
2
3
4
5
6
19  
2
3
4
5
6
19  
18  
17  
16  
DA  
OE  
B
DA  
OE  
B
0
0
18  
17  
OB  
OA  
0
OB  
OA  
0
0
0
7
6
5
4
7 6 5 4  
8
8
DA  
DB  
0
DA  
DB  
0
1
OB  
OB  
OB  
DA  
1
3
3
0
9
9
3
2
1
3
2
1
OB  
DA  
0
FCT244T 16  
OB  
OA  
1
GND  
GND  
FCT240T  
OB  
OA  
1
1
0
1
10  
11  
10  
11  
FCT240T  
0
FCT244T  
DB  
3
DB  
3
OE  
A
15  
14  
DA  
DB  
1
15  
14  
DA  
DB  
1
2
OE  
2
A
OA  
3
V
CC  
OA  
3
DB  
2
12  
13  
V
12  
13  
7
20  
19  
20  
19  
7
8
9
CC  
OB  
DA  
OA  
2
OB  
DA  
OA  
2
2
2
OE  
B
DB  
2
OE  
B
8
13  
12  
11  
13  
12  
11  
DB  
2
DB  
3
3
2
1516 17 18  
1516 17 18  
14  
14  
9
OB  
OA  
3
OB  
OA  
3
3
3
GND  
10  
DB  
3
10  
GND  
DB  
3
FCT240T–2  
FCT240T–3  
FCT240T–5  
FCT240T–6  
Copyright © 2000, Texas Instruments Incorporated  
12345678

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