PI5C162861C Просмотр технического описания (PDF) - Pericom Semiconductor
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PI5C162861C Datasheet PDF : 4 Pages
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PI5C16861C
PI5C162861C (25Ω) 111222333444555666777888999000111222333444555666777888999000111222333444555666777888999000111222111222333444555666777888999000111222333444555666777888999000111222333444555666777888999000111222111222333444555666777888999000111222333444555666777888999000111222333444555666777888999000111222111222333444555666777888999000111222333444555666777888999000111222333444555666777888999000111222111222333444555666777888999000111222
20-Bit, 2-Port Bus Switch
Product Features
• Near-zero propagation delay
• 5-ohm or 25−ohm switches connect inputs to outputs
• Direct bus connection when switches are ON
• 32X384 function with flow through pinout
make board layout easier
• Ultra-low quiescent power (105µA typical)
ideally suited for notebook applications
• Industrial operating temperature: 40°C to +85°C
• Packages available:
48-pin 240-mil wide plastic TSSOP (A)
Product Description
Pericom Semiconductors PI5C series of Bus Switch circuits are
produced using the Companys advanced submicron CMOS
technology, achieving industry leading speed.
The PI5C16861C is configured as a 20-bit, 2-port bus switch designed
with a low ON resistance (5 ohms) 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 (BEx) input signal.
The PI5C162861C 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
A0
A9
BE1
A10
A19
BE2
B0
B9
B10
B19
Product Pin Configuration
NC
A0
A1
A2
A3
A4
A5
A6
A7
A8
A9
GND
NC
A10
A11
A12
A13
A14
A15
A16
A17
A18
A19
GND
1
48
2
47
3
46
4
45
5
44
6
43
7
42
8
41
9
40
10
39
11 48-Pin 38
12 A 37
13
36
14
35
15
34
16
33
17
32
18
31
19
30
20
29
21
28
22
27
23
26
24
25
VCC
BE1
B0
B1
B2
B3
B4
B5
B6
B7
B8
B9
VCC
BE2
B10
B11
B12
B13
B14
B15
B16
B17
B18
B19
Truth Table(1)
Function
nBE
Disconnect
H
Connect
L
Notes:
1. H = High Voltage Level
L = Low Voltage Level
Hi-Z = High Impedance
nA0-7
Hi-Z
nB0-7
Product Pin Description
Pin Name
I/O
S0-S2
I
xAx
I/O
xBx
I/O
1
Description
Select Inputs
Bus A
Bus B
PS8357D 05 /10/01
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