PI3C16212 Datasheet, PDF (1/4 Pages) Pericom Semiconductor Corporation – 3.3V, High Bandwidth, 24-Bit Bus Exchange Switch

PI3C16212
1122334455667788990011223344556677889900112233445566778899001122112233445566778899001122334455667788990011223344556677889900112211223344556677889900112233445566778899001122334455667788990011221122334455667788990011223344556677889900112233445566778899001122112233445566778899001122
3.3V, High Bandwidth, 24-Bit Bus Exchange Switch
Product Features
• Near-zero propagation delay
• 6Ω switches connect inputs to outputs
• Direct bus connection when switches are ON
• Ultra-low quiescent power (0.2mA typical)
– Ideally suited for notebook applications
• Industrial operating temperature: –40°C to +85°C
• Packages available:
– 56-pin 240-mil wide thin plastic TSSOP (A)
Product Description
Pericom Semiconductor’s PI3C series of bus switch circuits are
produced using the Company’s advanced submicron CMOS
technology.
The PI3C16212 is 24-bit bus exchange switch designed with a low
ON resistance allowing inputs to be connected directly to outputs.
This device operates as a 24-bit bus switch or a 12-bit exchanger,
which provides data exchanging between the four signal ports via
the data select pins (S0-S2).
Logic Block Diagram
1A1
ONE OF TWELVE CHANNELS
1B1
1A2
1B2
FLOW CONTROL
S0
S1
S2
Truth Table
Function
S2 S1 S0 A1 A2
Disconnect
L LLZZ
A1 to B1
L L H B1 Z
A1 to B2
L H L B2 Z
A2 to B1
L H H Z B1
A2 to B2
H L L Z B2
Disconnect
H LHZ Z
A1 to B1, A2 to B2 H H L B1 B2
A1 to B2, A2 to B1 H H H B2 B1
Note:
1. H = High Voltage Level
L = Low Voltage Level
Z = High Impedance
Product Pin Configuration
S0 1
1A1 2
1A2 3
2A1 4
2A2 5
3A1 6
3A2 7
GND 8
4A1 9
4A2 10
5A1 11
5A2 12
6A1 13
6A2 14
7A1 15
7A2 16
VCC 17
8A1 ₁₈
GND ₁₉
8A2 20
9A1 21
9A2 22
10A1 23
10A2 24
11A1 25
11A2 26
12A1 27
12A2 28
56-Pin
A
56 S1
55 S2
54 1B1
53 1B2
52 2B1
51 2B2
50 3B1
49 GND
48 3B2
47 4B1
46 4B2
45 5B1
44 5B2
43 6B1
42 6B2
41 7B1
40 7B2
39 8B1
38 GND
37 8B2
36 9B1
35 9B2
34 _10B1
33 _10B2
32 11B1
31 11B2
30 12B1
29 12B2
Product Pin Description
Pin Name I/O
S0-S2
I
xAx
I/O
xBx
I/O
Description
Select Inputs
Bus A
Bus B
1
PS8454C 01/11/02