Datasheet4U Logo Datasheet4U.com

ICS9248-61 - Frequency Timing Generator

General Description

The ICS9248-61 is the Main clock solution for Notebook designs using the Intel 440BX style chipset.

Along with an SDRAM buffer such as the ICS9179-03, it provides all necessary clock signals for such a system.

Spread spectrum may be enabled by driving pin 26, SPREAD# active (Low) at power-on.

Key Features

  • • Generates the following system clocks: - 2CPU(2.5V) up to 100MHz. - 7 PCI(3.3V) @ 33.3MHz (Includes one free running). - 2 REF clks Fixed (3.3V) 48MHz at 14.318MHz. • Skew characteristics: - CPU – CPU.

📥 Download Datasheet

Datasheet Details

Part number ICS9248-61
Manufacturer Renesas
File Size 386.43 KB
Description Frequency Timing Generator
Datasheet download datasheet ICS9248-61 Datasheet

📁 Similar Datasheet

Part Number Description Manufacturer
ICS9248-61 Frequency Generator & Integrated Buffers Integrated Circuit Systems
ICS9248-64 Frequency Generator & Integrated Buffers Integrated Circuit Systems
ICS9248-65 Frequency Generator & Integrated Buffers Integrated Circuit Systems
ICS9248-66 Frequency Generator & Integrated Buffers Integrated Circuit Systems
ICS9248-101 Frequency Generator & Integrated Buffers Integrated Circuit Systems

Other Datasheets by Renesas

Part Number Description
ICS9248-128 Frequency Generator & Integrated Buffer
ICS9248-138 Frequency Generator & Integrated Buffer
ICS9248-192 Frequency Timing Generator
ICS9248-39 Frequency Generator & Integrated Buffer
ICS9248-55 Pentium/Pro/II System Clock

Full PDF Text Transcription (Reference)

The following content is an automatically extracted verbatim text from the original manufacturer datasheet and is provided for reference purposes only.

View original datasheet text
ICS9248-61 Frequency Timing Generator for Pentium II Systems General Description The ICS9248-61 is the Main clock solution for Notebook designs using the Intel 440BX style chipset. Along with an SDRAM buffer such as the ICS9179-03, it provides all necessary clock signals for such a system. Spread spectrum may be enabled by driving pin 26, SPREAD# active (Low) at power-on. Spread spectrum typically reduces system EMI by 8dB to 10dB. This simplifies EMI qualification without resorting to board design iterations or costly shielding. The ICS9248-61 employs a proprietary closed loop design, which tightly controls the percentage of spreading over process and temperature variations. Block Diagram Features • Generates the following system clocks: - 2CPU(2.5V) up to 100MHz. - 7 PCI(3.3V) @ 33.