June 2005 ASM2P2309NZ

rev 0.2

Alliance Semiconductor
2575 Augustine Drive Santa Clara, CA Tel: 408.855.4900 Fax: 408.855.4999 www.alsc.com
Notice: The information in this document is subject to change without notice.
Nine Output 3.3V Buffer

Features


One-input to Nine-Output Buffer/Driver

Supports two DIMMs or four SO-DIMMs with one
additional output for feedback to an external or
chipset PLL

Low power consumption for mobile applications
Less than 32mA at 66.6MHz with unloaded
outputs

1nS Input-Output delay

Buffers all frequencies from DC to 133.33MHz

Output-output skew less than 250pS

Multiple V
DD
and V
SS
pins for noise and
electromagnetic interference (EMI) reduction

Space-saving 16-pin 150-mil SOIC Package

3.3V operation

Commercial and Industrial temperature parts are
available

Functional Description

The ASM2P2309NZ is a low-cost buffer designed to
distribute high-speed clocks in mobile PC systems and
desktop PC systems with SDRAM support. The part has
nine outputs, eight of which can be used to drive two
DIMMs or four SO-DIMMs, and the remaining can be used
for external feedback to a PLL. The device operates at
3.3V and outputs can run up to 133.33MHz.

The ASM2P2309NZ is designed for low EMI and power
optimization. It has multiple V
SS
and V
DD
pins for noise
optimization and consumes less than 32mA at 66.6MHz,
making it ideal for the low-power requirements of mobile
systems. It is available in an ultra-compact 150-mil 16-pin
SOIC Package.
Block Diagram

BUF_IN
OUTPUT1
OUTPUT2
OUTPUT3
OUTPUT4
OUTPUT5
OUTPUT6
OUTPUT7
OUTPUT8
OUTPUT9