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PI3C6800
2.5V/3.3V, 2-Port, 10-Bit Bus Switch
with Precharged Outputs
for Live Insertion
Product Features
聲 Near zero propagation delay
聲 5鈩?switch connection between two ports
聲 High Bandwidth (>400 MHz)
聲 Rail-to-Rail 3.3V or 2.5V Switching
聲 Outputs are precharged by bias voltage to
minimize signal distortion during live insertion
聲 5V I/O Tolerant
聲 2.5V Supply Voltage Operation
聲 Package options:
聳 24-pin 150 mil wide plastic QSOP (Q)
聳 24-pin 173 mil wide TSSOP (L)
Product Description
Pericom Semiconductor聮s PI3C series of logic circuits are produced
using the Company聮s advanced submicron CMOS technology,
achieving industry leading performance.
The PI3C6800 is a 10-bit bus switch with low on-state resistance.
The bus switch creates no additional propagation delay. To minimize
live-insertion noise, the device also precharges the B port to a user-
selectable bias voltage (BIASV).
The switch is turned on by a single enable (ON) input. When ON
is LOW, the switch is on and port A is connnected to port B. When
ON is HIGH, the switch between port A and port B is open and
the B port is precharged to BIASV through the equivalent of a
10-k鈩?resistor.
Logic Diagram
13
Product Pin Configuration
A1
23
B1
A10
14
B10
ON
Truth Table
(1)
Function
Connect
Precharge
Note:
1. H = High Voltage Level
L = Low Voltage Level
ON
L
H
B1 - B10
A1 - A10
B
IASV
ON
A1
A2
A3
A4
A5
A6
A7
A8
A9
A10
GND
1
2
3
4
5
6
7
8
9
10
11
12
24-Pin
L, Q
24
23
22
21
20
19
18
17
16
15
14
13
V
CC
B1
B2
B3
B4
B5
B6
B7
B8
B9
B10
BIASV
1
PS8191D
05/03/00