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PI5C32245Q PDF预览

PI5C32245Q

更新时间: 2024-11-08 23:27:35
品牌 Logo 应用领域
其他 - ETC 开关
页数 文件大小 规格书
3页 174K
描述
Bus Switch

PI5C32245Q 数据手册

 浏览型号PI5C32245Q的Datasheet PDF文件第2页浏览型号PI5C32245Q的Datasheet PDF文件第3页 
PI5C32245  
8-Bit, 2-Port Bus Switch  
with 25ohm Series Resistor  
Product Features:  
Product Description:  
• Near zero propagation delay  
Pericom Semiconductor’s PI5C series of logic circuits are  
producedintheCompany’sadvancedsubmicronCMOStechnology,  
achieving industry leading performance.  
• 25ohm series resistor termination  
• 5ohm switches connect inputs to outputs  
• Direct bus connection when switches are ON  
The PI5C32245 is a 8-bit, 2-port bus switch designed with a low  
ON resistance (5ohm) allowing inputs to be connected directly to  
outputs. The bus switch creates no additional propagational delay  
or additional ground bounce noise. The switches are turned ON by  
the Bus Enable (BE) input signal. Pinout is compatible with  
PI74FCT245T (Octal Bidirectional Transceiver). The device has a  
built-in 25ohm resistor to reduce noise resulting from reflections,  
thus eliminating the need for an external terminating resistor.  
• UltraLowQuiescentPower(0.2µATypical)  
– Ideally suited for notebook applications  
• Pin compatible with 74 series 245 logic devices  
• Packages available:  
– 20-pin 150 mil wide plastic QSOP (Q)  
Product Pin Configuration  
Logic Block Diagram  
NC  
A0  
1
2
3
4
5
6
7
8
9
20  
VCC  
A
A
0
7
B
B
0
7
19 BE  
A1  
18  
17  
16  
15  
14  
13  
12  
11  
B0  
B1  
B2  
B3  
B4  
B5  
B6  
B7  
20-Pin  
Q
A2  
A3  
A4  
A5  
A6  
A7  
GND  
10  
BE  
Product Pin Description  
Truth Table(1)  
Function  
Pin Name  
BE  
Description  
BE  
H
A0–7  
Hi-Z  
B0–7  
Bus Enable Input (Active LOW)  
Disconnect  
Connect  
A0–7  
B0–7  
GND  
VCC  
Bus A  
Bus B  
Ground  
Power  
L
Note:  
1. H  
L
=
=
High Voltage Level  
Low Voltage Level  
Hi-Z = High Impedance  
PS8136  
08/20/97  
1

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