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PI3C34X2484NB PDF预览

PI3C34X2484NB

更新时间: 2024-11-20 23:27:35
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其他 - ETC 开关逻辑集成电路驱动
页数 文件大小 规格书
5页 278K
描述
Bus Switch

PI3C34X2484NB 数据手册

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PI3C34X484  
PI3C34X2484 (25)  
3.3V, High Bandwidth, Hot Insertion  
40-Bit, 2-Port, Bus Switch  
Product Description  
Product Features  
PericomSemiconductor’sPI3Cseriesoflogiccircuitsareproduced  
using the Company’s advanced submicron CMOS technology,  
achieving industry performance.  
• Near-zero propagation delay  
• Low noise, 25version (PI3C34X2484)  
• 5switches connect inputs to outputs (PI3C34X2484)  
• High Bandwidth (>200 MHz)  
• Permits Hot Insertion.  
The PI3C34X484, and PI3C34X2484 are 3.3Volt, high bandwidth  
40-bit, 2-port bus switches designed with a low ON resistance  
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. Eight bus enable signals are provided, one for each of  
the upper and lower five bits of the four 10-bit buses.  
The PI3C34X2484 is designed with an internal 25resistor  
reducing noise reflection in high-speed applications.  
• Rail-to-Rail, 3.3V Switching  
• 5V I/O Tolerant  
• Packages available:  
– 96-pin LFBGA (NB96)  
Applications  
• High Bandwidth Data switching  
Product Pin Description  
• Hot Docking  
Pin Name  
Description  
Bus A  
Logic Block Diagram  
N
A0  
-
-
N
N
A9  
2
A
A
0
4
2
B
B
0
4
1
A
A
0
1
B
0
4
Bus B  
N
B0  
B9  
2
2
1
4
1
B
Bus Enable Pins (Active LOW)  
N
BEA, NBE  
B
Ground  
Power  
N
GND  
2
A
A
5
9
2
B
B
5
9
1
A
A
5
9
1
B
5
9
N CC  
V
2
2
1
1
B
Note: N = 1 through 4 for each set of 10 bit buses  
2
BE  
A
B
1
BE  
A
B
2BE  
Truth Table(1)  
1BE  
4
A
0
4
B
0
4
3
A
0
3
B
0
4
Function  
Disconnect  
Connect  
Connect  
Connect  
NBEA NBEB  
B0-B4  
Hi-Z  
B5-B9  
Hi-Z  
H
L
H
H
L
4A  
4
4
B
3A  
4
3
B
A0-A4  
Hi-Z  
Hi-Z  
H
L
A5-A9  
A5-A9  
4A  
5
9
4B  
5
9
3A  
5
9
3B  
5
9
L
A0-A4  
Note:  
1. H = High Voltage Level, X = Don’t Care,  
L = Low Voltage Level, Hi-Z = High Impedance  
4A  
4
B
3A  
3
B
4
BE  
A
B
3
BE  
A
B
4BE  
3BE  
PS8406  
01/11/00  
1
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