9UMS9001AKLF

Overview

The Renesas 9UMS9001AKLF is a PC main clock generator IC, part of the CK540 series, designed for Ultra Mobile PC (UMPC) applications. It features an integrated PLL and accepts crystal input to generate up to 14 differential clock outputs at frequencies up to 200MHz. The device operates on a supply voltage range of 1.71V to 3.465V and supports split rail operation for power savings. It is housed in a 56-VFQFPN package with an exposed pad, suitable for surface mount assembly within a 0°C to 70°C operating temperature range.

Feature Summary

• Integrates CPU low power differential push-pull pairs, ITP, SRC, LCD100, DOT96, PCI, USB, and REF outputs.
• Supports Dothan ULV CPUs with dedicated 100 and 133 MHz CPU outputs.
• Features fully integrated Vreg and internal series resistors on differential outputs.
• Includes dedicated TEST/SEL and TEST/MODE pins to save isolation resistors.

Applications

• Ultra Mobile PC (UMPC) systems
• Dothan ULV CPU platforms
• PCI 33MHz bus interfaces
• USB 48MHz clock generation

Procurement Notes

Verify the specific suffix AKLF against official documentation to confirm pinout and electrical characteristics. Confirm RoHS compliance status and moisture sensitivity level prior to procurement. Check for end-of-life notices or alternative component recommendations from the manufacturer.

Selection Notes

Select this component for UMPC designs requiring a single-chip solution for multiple differential clock domains. Ensure the design supports the 1.71V to 3.465V supply range and accommodates the 56-VFQFPN package dimensions. Verify compatibility with Dothan ULV CPU timing requirements.

Part Context

This IC belongs to the CK540 family of PC main clocks. It consolidates multiple clock generators into one package, reducing board space and component count compared to discrete solutions. It is specifically optimized for mobile processor architectures requiring low power consumption and high integration.

Replacement Considerations

Consult Renesas datasheets for direct pin-compatible replacements or updated generations within the CK540 family. Verify that any substitute maintains the 1:14 ratio and supports the required output types including PCI, USB, and CPU clocks.