PI2BV3877L Ver la hoja de datos (PDF) - Pericom Semiconductor Corporation
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PI2BV3877L Datasheet PDF : 4 Pages
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2.5V, 10-Bit, 2-Port
266 MHz DDR BusSwitch
Product Features
Used in X4 DDR modules
Near zero propagation delay
20 Ohm switches connect inputs to outputs
Fast Switching Speed 3ns (max.)
Low Off Capacitance (3pF)
Pull-down on B output
Pull-up on Switch Enable
Packages available:
24-pin 150 mil wide plastic QSOP (Q)
24-pin 173 mil wide plastic TSSOP (L)
Product Description
Pericom Semiconductors PI2B series of logic circuits are produced
using the Companys advanced submicron CMOS technology,
achieving industry leading performance.
The PI2BV3877 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 (BEN) input signals.
The PI2BV3877 switch is intended for 266 MHz DDR(X4) Memory
Module Applications.
Logic Block Diagram
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8??
*-
)#
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Product Pin Configuration
*
BE0
1
24
VCC
A0
2
23
B0
A1
3
22
B1
*"
A2
4
21
B2
A3
5 24-Pin 20
B3
A4
6 Q, L 19
B4
A5
7
18
B5
A6
8
17
B6
*#
A7
9
16
B7
A8
10
15
B8
A9
11
14
B9
*'
GND
12
13
BE1
8??
*-
Product Pin Description
Pin Name
Description
BE0, BE1
Bus Enable Input (Active LOW)
A09
Bus A
B09
Bus B
GND
Ground
VCC
Power
Truth Table(1)
Function
Disconnect
Connect
BE0 A0A4
H Hi-Z
L B04
Function
Disconnect
Connect
BE1 A5A9
H Hi-Z
L B5B9
Notes: 1. H = High Voltage Level
L = Low Voltage Level
Hi-Z = High Impedance
1
PS8472A 05/02/00
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