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PI3B16861
3.3V, 20-Bit, 2-Port NanoSwitch聶
Product Features
聲
聲
聲
聲
聲
Near-zero propagation delay
5 ohms switches connect inputs to outputs
Fast Switching Speed - 5ns (max.)
Direct bus connection when switches are ON
32X384 function with flow through pinout make board
layout easier
聲 V
CC
Operating Range: 3.0V to 3.6V
聲 Industrial operating temperature: 聳40擄C to +85擄C
聲 Packages available:
聳 48-pin 240-mil wide plastic TSSOP (A)
聳 48-pin 300-mil wide plastic SSOP (V)
聳 48-pin 150-mil wide plastic BQSOP (B)
Product Description
Pericom Semiconductor聮s PI3B series of Bus Switch circuits are
produced using the Company聮s advanced submicron CMOS
technology, achieving industry leading speed.
The PI3B16861 is configured as a 3.3 volt, hot-insertion, 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 switch is turned ON by the Bus Enable (BEx)
input signal.
Logic Block Diagram
A0
Product Pin Configuration
B0
NC
A0
A1
A2
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
48
47
46
45
44
43
42
41
40
VCC
BE1
B0
B1
B2
B3
B4
B5
B6
B7
B8
B9
VCC
BE2
B10
B11
B12
B13
B14
B15
B16
B17
B18
B19
SW
A9
SW
B9
SW
A3
A4
A5
BE1
A
B
A6
A7
A8
A10
SW
B10
BE
A9
GND
NC
A10
48-Pin
A, B, V
39
38
37
36
35
34
33
32
31
30
29
28
27
26
25
A19
SW
B19
A11
A12
A13
BE2
A14
A15
A16
A17
Truth Table
(1)
Function
Disconnect
Connect
Note:
1. H = High Voltage Level
L = Low Voltage Level
Hi-Z = High Impedance
BEx
H
L
A19-A0
Hi- Z
B19- B0
A18
A19
NC
Product Pin Description
Pin Name
BEx
A19- A0
B19- B0
Bus A
Bus B
D e s cription
Bus Enable Inputs (Active LO W)
1
PS8175C
03/01/02
1
2
3
4
5
