PI3B16211 Datasheet, PDF (1/5 Pages) Pericom Semiconductor Corporation – 3.3V, Hot Insertion, 24-Bit BusSwitch

PI3B16211
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3.3V, Hot Insertion, 24-Bit BusSwitch
Features
• Near-Zero propagation delay
• 5-ohm switches connect inputs to outputs
• Fast Switching Speed - 4.5ns max.
• Permits Hot Insertion
• VCC operating range: 3.0V to 3.6V
• Industrial operating temperature: –40°C to +85°C
• Packaging (Pb-free & Green available):
– 56-pin 240-mil wide thin plastic TSSOP (A)
– 56-pin 300-mil wide plastic SSOP (V)
– 56-pin 173-mil wide thin plastic TVSOP (K)
Description
Pericom Semiconductor’s PI3B16211 is a 3.3 volt, hot insertion, 24-
bit bus switch designed with a low On-Resistance allowing inputs
to be connected directly to outputs. This device operates as a 24-
bit or a as 12-bit bus switch that provides high-speed bus switching.
Block Diagram
Pin Configuration
1A1
1A12
12B1
1B12
1OE
2A1
2A12
2B1
2B12
2OE
Truth Table
1OE
2OE
1A, 1B I/Os 2A, 2B I/Os
L
L
1A = 1B
2A = 2B
L
H
1A = 1B
Z
H
L
Z
2A = 2B
H
H
Z
Z
Note:
1. H = High Voltage Level, L = Low Voltage Level
Z = High Impedance
Pin Description
Pin Name
I/O
1OE, 2OE
I
xAx
I/O
xBx
I/O
Description
Select Inputs
Bus A
Bus B
NC ₁
1A1 ₂
1A2 3
1A3 4
1A4 5
1A5 6
1A6 7
GND 8
1A7 9
1A8 10
1A9 11
1A10 12
1A11 13
1A12 14
2A1 15
2A2 16
VCC 17
2A3 18
GND 19
2A4 20
2A5 21
2A6 22
2A7 23
2A8 24
2A9 25
2A10 26
2A11 27
2A12 28
56 ^1OE
55 ^2OE
54 ^1B1
53 ^1B2
52 ^1B3
51 ^1B4
50 1B5
49 GND
48 1B6
47 1B7
46 1B8
45 1B9
44 1B10
43 1B11
42 1B12
41 2B1
40 2B2
39 2B3
38 GND
37 2B4
36 2B5
35 2B6
34 2B7
33 2B8
32 2B9
31 2B10
30 2B11
29 2B12
1
PS8176D 09/29/04