PI3B162862 Ver la hoja de datos (PDF) - Pericom Semiconductor
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componentes Descripción
Fabricante
PI3B162862 Datasheet PDF : 3 Pages
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PI3B16862/PI3B162862
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PI3B162862 (25Ω)
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3.3V, Hot Insertion, 20-Bit, 2-Port BusSwitch
Product Features
• Near-zero propagation delay
• 5Ω or 25Ω switches connect inputs to outputs
• Fast Switching Speed - 5ns (max.)
• Direct bus connection when switches are ON
• Permits Hot Insertion
• 32X384 function with flow through pinout make board
layout easier
• Vcc Operating Range: 3.0V to 3.6V
• Industrial operating temperature: –40°C to +85°C
• Packages available:
– 48-pin 150-mil wide plastic BQSOP (B)
– 48-pin 240-mil wide plastic TSSOP (A)
– 48-pin 300-mil wide plastic SSOP (V)
Product Description
Pericom Semiconductor’s PI3B series of Bus Switch circuits are
produced using the Company’s advanced 0.35 micron CMOS
technology, achieving industry leading speed.
The PI3B16862 is configured as a 3.3 Volt, 20-bit, hot-insertion
2-port bus switch designed with a low ON resistance (5Ω)
allowing inputs to be connected directly to outputs. The bus
switch creates no additional propagational delay or additional
ground bounce noise. The switch is turned ON by the Bus Enable
(BEx) input signal.
The PI3B162862 device has a built-in 25-ohm series resistor to
reduce noise resulting from reflections, thus eliminating the need
for an external terminating resistor.
Logic Block Diagram
Product Pin Configuration
A0
A4
BE1
A15
A19
BE4
Truth Table(1)
Function
Disconnect
Connect
BEX A19-A0
H Hi-Z
L B19-B0
Note:
1. H = High Voltage Level
L = Low Voltage Level
Hi-Z = High Impedance
BE2 1
48 Vcc
B0
A0 2
47 BE1
A1 3
46 B0
A2 4
45 B1
B4
A3 5
44 B2
A4 6
43 B3
A5 7
42 B4
A6 8
41 B5
A7 9
40 B6
A8 10
39 B7
A9 11
38 B8
B15
GND 12
37 B9
BE4 13
36 VCC
A10 14
35 BE3
A11 15
34 B10
B19
A12 16
33 B11
A13 17
32 B12
A14 18
31 B13
A15 19
30 B14
A16 20
29 B15
A17 21
28 B16
A18 22
27 B17
A19 23
26 B18
GND 24
25 B19
Product Pin Description
Pin Name
Description
BEx
A19-A0
B19-B0
Bus Enable Inputs (Active LOW)
Bus A
Bus B
1
PS8200C 09/08/99
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