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PI2BV3867
2.5V, 10-Bit, 2-Port
266 MHz DDR Bus Switch
Product Features
聲 Used in x8 DDR Memory Module
聲 Near zero propagation delay
聲 20-ohm switches connect inputs to outputs
聲 Fast Switching Speed 聳3ns (max.)
聲 Low Off Capacitance (3pF)
聲 Pull-down on B output
聲 Packages available:
聳 24-pin 150 mil wide plastic QSOP (Q)
聳 24-pin 173 mil wide plastic TSSOP (L)
Product Description
Pericom Semiconductor聮s PI2BV series of logic circuits are produced
using the Company聮s advanced submicron CMOS technology,
achieving industry leading performance.
The PI2BV3867 is a 10-bit, 2.5 volt two-port bus switch designed
with a low ON resistance allowing inputs to be connected directly
to outputs. The bus switch creates no additional propagational
delay or additional ground bounce noise. The switches are turned
ON by the Bus Enable (BE) input signal.
The PI2BV3867 switch is intended for 266 MHz DDR (x8) Memory
Module Applications.
Logic Block Diagram
A0
B0
Product Pin Configuration
NC
A0
A1
A2
A3
A4
A5
A6
A7
A8
A9
GND
1
2
3
4
5
6
7
8
9
10
11
12
24
23
22
21
20
19
18
17
16
15
14
13
VCC
B0
B1
B2
B3
B4
B5
B6
B7
B8
B9
BE
A9
B9
24-Pin
L, Q
BE
Product Pin Description
Pin Name
BE
A0聳9
B0聳9
GND
V
CC
De s cription
Bus Enable Input (Active LOW)
Bus A
Bus B
Ground
Power
Truth Table
(1)
Function
Disconnect
Connect
BE
H
L
A0聳A9
Hi- Z
B0聳9
Notes:
H
= High Voltage Level
L
= Low Voltage Level
Hi-Z = High Impedance
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PS8471D
10/10/01
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