PI5C16292 Datasheet, PDF (1/4 Pages) Pericom Semiconductor Corporation – PI5C162292 (25W)

PI5C16292
PI5C162292 (25Ω)
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24-Bit Mux/Demux Bus Switch
Features
• Near-zero propagation delay
• 5Ω switches connect inputs to outputs
• Direct bus connection when switches are ON
• Internal 500Ω pull-down on A2 ports
• Ultra-low quiescent power (0.2µA typical)
– Ideally suited for notebook applications
• Industrial operating temperature: –40°C to +85°C
• Make-before-break switching
• Packages available:
– 56-pin 240-mil wide thin plastic TSSOP (A)
– 56-pin 300-mil wide plastic SSOP (V)
Applications
• Memory switching
Logic Block Diagram
Ω
Truth Table
Function
S0 A1 A2
A1 to B1, A2 to B2 L B1 B2
A1 to B2, A2 to B1 H B2 B1
Note:
1. H = High Voltage Level
L = Low Voltage Level
Z = High Impedance
Description
Pericom Semiconductor’s PI5C series of logic circuits are produced
using the Company’s advanced 0.6 micron CMOS technology.
The PI5C16292 and PI5C162292 are 12-bit to 24-bit Mux/Demux
Bus switches designed with a low ON resistance allowing inputs
to be connected directly to outputs.
The PI5C162292 device has a built-in 25-ohm series resistor to
reduce noise resulting from reflections, thus eliminating the need
for an external terminating resistor.
A2 port is not externally connected and, as a result, has an internal
500-ohm pulldown resistor to ground.
Pin Configuration
S0
1A1
NC1
2A1
NC1
3A1
NC1
GND
4A1
NC1
5A1
NC1
6A1
NC1
7A1
NC1
VCC
8A1
GND
NC1
9A1
NC1
10A1
NC1
11A1
NC1
12A1
NC1
1
56
2
55
3
54
4
53
5
52
6
51
7
50
8
49
9
48
10
47
11
46
12 56-Pin 45
13 ^A,V 44
14
43
15
42
16
41
17
40
18
39
19
38
20
37
21
36
22
35
23
34
24
33
25
32
26
31
27
30
28
29
NC
NC
1B1
1B2
2B1
2B2
3B1
GND
3B2
4B1
4B2
5B1
5B2
6B1
6B2
7B1
7B2
8B1
GND
8B2
9B1
9B2
10B1
10B2
11B1
11B2
12B1
12B2
Product Pin Description
Pin Name
S0
xA1
xBx
NC
NC1
I/O
Description
I Select Inputs
I/O Bus A
I/O Bus B
Internally pulled up thru 4.7k resistor
Leave it unconnected
1
PS8139C 01/11/00