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CY74FCT2245TQCT

更新时间： 2024-01-13 20:19:58
品牌 Logo 应用领域
德州仪器 - TI 逻辑集成电路光电二极管
页数 文件大小 规格书
7页 69K
描述
8-Bit Transceiver

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CY74FCT2245TQCT 数据手册

 浏览型号CY74FCT2245TQCT的Datasheet PDF文件第2页浏览型号CY74FCT2245TQCT的Datasheet PDF文件第3页浏览型号CY74FCT2245TQCT的Datasheet PDF文件第4页浏览型号CY74FCT2245TQCT的Datasheet PDF文件第5页浏览型号CY74FCT2245TQCT的Datasheet PDF文件第6页浏览型号CY74FCT2245TQCT的Datasheet PDF文件第7页 
Data sheet acquired from Cypress Semiconductor Corporation.  
Data sheet modified to remove devices not offered.  
CY74FCT2245T  
SCCS037 - July 1994 - Revised March 2000  
8-Bit Transceiver  
Features  
Functional Description  
• Function and pinout compatible with FCT and F logic  
• 25Ω output series resistors to reduce transmission line  
reflection noise  
• FCT-C speed at 4.1 ns max.  
FCT-A speed at 4.6 ns max.  
• Edge-rate control circuitry for significantly improved  
noise characteristics  
The FCT2245T contains eight non-inverting, bidirectional buffers  
with three-state outputs intended for bus oriented applications.  
On-chip termination resistors have been added to the outputs to  
reduce system noise caused by reflections. For this reason, the  
FCT2245T can be used in an existing design to replace the  
FCT245T. The FCT2245T current sinking capability is 12 mA at the  
A and B ports.  
The Transmit/Receive (T/R) input determines the direction of data  
flow through the bidirectional transceiver. Transmit (Active HIGH)  
enables data from A ports to B ports; receive (Active LOW) enables  
data from B ports to A ports. The output enable (OE) input, when  
HIGH, disables both the A and B ports by putting them in a High Z  
condition.  
• Power-off disable feature  
• Fully compatible with TTL input and output logic levels  
• ESD > 2000V  
• Sink current  
Source current  
12 mA  
15 mA  
• Extended commercial temp. range of –40˚C to +85˚C  
• Three-state outputs  
The outputs are designed with a power-off disable feature to  
allow for live insertion of boards.  
Logic Block Diagram  
Pin Configurations  
T/R  
OE  
DIP/SOIC/QSOP  
Top View  
A
0
20  
19  
18  
17  
16  
1
2
3
4
5
6
B
T/R  
V
CC  
0
OE  
A
0
A
1
A
1
B
0
B
B
1
2
A
2
B
B
B
1
2
3
A
2
A
3
15  
14  
A
4
A
5
7
B
B
4
5
A
3
13  
12  
11  
A
6
8
A
7
B
B
B
9
6
7
3
10  
GND  
A
4
FCT2245T–3  
B
B
4
5
A
5
A
6
B
B
6
7
A
7
FCT2245T–1  
Function Table[1]  
Inputs  
OE  
L
T/R  
L
Output  
Bus B Data to Bus A  
Bus 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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CY74FCT2245TQCT 替代型号

型号 品牌 替代类型 描述 数据表
CY74FCT2245TQCTG4 TI

完全替代

 FCT SERIES, 8-BIT TRANSCEIVER, TRUE OUTPUT, PDSO20, GREEN, PLASTIC, QSOP-20

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