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

ƒ One-input to Nine-Output Buffer/Driver
ƒ Supports two DIMMs or four SO-DIMMs with one
additional output for feedback to an external or
chipset PLL
ƒ Low power consumption for mobile applications
Less than 32 mA at 66.6 MHz with unloaded
outputs
ƒ 1nS Input-Output delay
ƒ Buffers all frequencies from DC to 133.33 MHz
ƒ Output-output skew less than 250pS
ƒ Multiple V
DD
and V
SS
pins for noise and
electromagnetic interference (EMI) reduction
ƒ Space-saving 16-pin 150-mil SOIC Package
ƒ 3.3V operation
ƒ 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 133.33 MHz.

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 32 mA at 66.6 MHz,
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