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CY54FCT245TDIP

更新时间： 2024-11-15 22:48:59
品牌 Logo 应用领域
德州仪器 - TI /
页数 文件大小 规格书
7页 93K
描述
8-Bit Transceiver

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CY54FCT245TDIP 数据手册

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Data sheet acquired from Cypress Semiconductor Corporation.  
Data sheet modified to remove devices not offered.  
CY54/74FCT245T  
SCCS018 - May 1994 - Revised February 2000  
8-Bit Transceiver  
Functional Description  
Features  
• Function, pinout, and drive compatible with FCT, and  
The FCT245T contains eight non-inverting bidirectional buff-  
ers with three-state outputs and is intended for bus oriented  
applications. For the FCT245T, current sinking capability is 64  
mA at the A and B ports.  
F logic  
• FCT-D speed at 3.8 ns max. (Com’l),  
FCT-C speed at 4.1 ns max. (Com’l),  
FCT-A speed at 4.6 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  
The Transmit/Receiver (T/R) input determines the direction of  
data flow through bidirectional transceiver. Transmit (Active  
HIGH) enables data from A ports to B ports. The output enable  
(OE), when HIGH, disables both the A and B ports by putting  
them in a High Z condition.  
The outputs are designed with a power-off disable feature to  
allow for live insertion of boards.  
• ESD > 2000V  
• Matched rise and fall times  
• Fully compatible with TTL input and output logic levels  
• Extended commercial range of −40˚C to +85˚C  
• Sink current  
Source current  
64 mA (Com’l), 48 mA (Mil)  
32 mA (Com’l), 12 mA (Mil)  
Logic Block Diagram  
Pin Configurations  
T/R  
OE  
A
0
B
0
DIP/SOIC/QSOP  
Top View  
LCC  
A
1
Top View  
T/R  
V
CC  
1
B
B
20  
1
2
A
0
OE  
2
3
4
5
6
19  
A
2
A
1
B
0
18  
17  
16  
7
6 5 4  
8
A
A
2
B
B
B
B
B
B
B
7
1
2
3
4
5
6
7
A
9
1
3
2
1
GND  
A
0
A
3
10  
11  
A
3
B
B
7
T/R  
A
4
15  
14  
B
3
12  
13  
V
CC  
20  
19  
6
5
A
5
7
B
OE  
A
4
A
6
8
13  
12  
11  
1516 17 18  
14  
A
7
9
B
B
4
5
GND  
10  
A
5
A
6
B
B
6
7
A
7
Function Table[1]  
OE  
L
T/R  
L
Operation  
B Data to Bus A  
A Data to Bus B  
High Z State  
L
H
H
X
Note:  
1. H = HIGH Voltage Level. L = LOW Voltage Level. X = Don’t Care.  
Copyright © 2000, Texas Instruments Incorporated  
1234567

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