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CY74FCT2827TSOIC PDF预览

CY74FCT2827TSOIC

更新时间: 2024-11-25 09:42:59
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德州仪器 - TI /
页数 文件大小 规格书
6页 44K
描述
10-Bit Buffer

CY74FCT2827TSOIC 数据手册

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1CY74FCT2827T  
Data sheet acquired from Cypress Semiconductor Corporation.  
Data sheet modified to remove devices not offered.  
CY74FCT2827T  
10-Bit Buffer  
SCCS045 - May 1994 - Revised March 2000  
Features  
Functional Description  
• Function and pinout compatible with FCT, F, and  
AM29827 logic  
• FCT-C speed at 5.0 ns max. (Com’l),  
FCT-A speed at 8.0 ns max. (Com’l)  
25output series resistors to reduce transmission line  
reflection noise  
• 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  
The FCT2827T 10-bit bus driver provides high-performance  
bus interface buffering for wide data/address paths or buses  
carrying parity. This 10-bit buffer has NAND-ed output enables for  
maximum control flexibility. The FCT2827T is designed for  
high-capacitance load drive capability, while providing low-capaci-  
tance bus loading at both inputs and outputs. All inputs have clamp  
diodesand all outputsare designedfor low-capacitancebus loading  
in the high impedance state. On-chip termination resistors have  
been added to the outputs to reduce system noise caused by re-  
flections. The FCT2827T can be used to replace the FCT827T to  
reduce noise in an existing design.  
The outputs are designed with a power-off disable feature to  
allow for live insertion of boards.  
• Matched rise and fall times  
• Fully compatible with TTL input and output logic levels  
• Extended commercial temp. range of –40˚C to +85˚C  
• Sink current  
Source current  
12 mA  
15 mA  
Pin Configurations  
Logic Block Diagram  
SOIC/QSOP  
Top View  
OE  
V
CC  
1
24  
23  
22  
21  
20  
19  
18  
17  
16  
15  
14  
13  
1
Y
Y
Y
Y
Y
Y
Y
Y
Y
Y
9
0
1
2
3
4
5
6
7
8
D
0
D
1
D
2
D
3
D
4
D
5
D
6
D
7
D
8
D
9
Y
0
2
Y
1
3
Y
2
4
Y
3
5
Y
4
6
Y
5
7
Y
6
8
Y
7
9
Y
8
10  
11  
12  
D
0
D
1
D
2
D
3
D
4
D
5
D
6
D
7
D
8
D
9
OE OE  
1
2
Y
9
FCT2827T3  
GND  
OE  
2
FCT2827T2  
Function Table[1]  
Inputs  
Outputs  
Y
OE1  
OE2  
D
Function  
L
L
L
L
L
H
L
H
Transparent  
H
X
X
H
X
X
Z
Z
Three-State  
Note:  
1. H = HIGH Voltage Level. L = LOW Voltage Level. X = Don’t Care.  
Copyright © 2000, Texas Instruments Incorporated  

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