04368CBLBC-28

Overview

The IBM 04368CBLBC-28 is a synchronous static random-access memory (SRAM) integrated circuit with an 8 Mbit capacity. It features a 256K x 36 bit organization and utilizes HSTL signaling for high-speed data transfer. The component operates within a supply voltage range of 2.375V to 2.625V and offers an access time of 1.8 ns. It is housed in a 153-pin plastic ball grid array (PBGA) package measuring 14x22 mm.

Feature Summary

• Synchronous SRAM architecture for high-speed volatile data storage
• HSTL interface standard supporting fast signal integrity
• Compact 153-PBGA surface-mount packaging

Applications

• IBM ThinkPad A series laptop systems
• Server memory modules
• High-performance embedded computing systems

Procurement Notes

Verify the exact manufacturer part number against official IBM documentation or authorized distributor catalogs before procurement. Ensure compatibility with the specific system slot map entry requirements. Confirm that the HSTL voltage levels match the target board design specifications to prevent operational errors.

Selection Notes

Select this component when a system requires 8 Mbit of synchronous SRAM with a 36-bit word width. The 1.8 ns access time suits applications demanding rapid data retrieval. Ensure the PCB layout supports the 153-PBGA footprint and that the power supply provides the required 2.375V to 2.625V range for stable operation.

Part Context

This SRAM chip is associated with IBM hardware ecosystems, including legacy ThinkPad models like the 2628-FDC. It serves as a critical volatile memory component for system operations. The device is distinct from general-purpose DRAM due to its synchronous interface and specific organizational structure tailored for high-throughput processing tasks.

Replacement Considerations

Consult IBM service manuals or FRU callouts for verified substitutes. Replacement must match the 256K x 36 organization and 153-PBGA form factor. Generic SRAMs with different pin counts or voltage tolerances are not suitable without extensive redesign.

FAQ

What is the memory organization of the 04368CBLBC-28?

The memory is organized as 256K words by 36 bits.

Does this component use asynchronous or synchronous logic?

It is a Synchronous Static Random-Access Memory (SRAM).