043641QLAD-7

Overview

The IBM 043641QLAD-7 is a Static Random Access Memory (SRAM) integrated circuit with a total capacity of 4Mbit. It utilizes an HSTL interface and is organized as 256K x 18 bits. The component operates at a supply voltage of 3.3V and is housed in a 119-BGA package measuring 17x7 mm.

Feature Summary

• High-Speed Transceiver Logic (HSTL) interface for compatible system integration
• Static RAM architecture providing non-volatile data retention during power cycles

Applications

• Server memory subsystems
• Enterprise storage networking equipment
• IBM Z system components

Procurement Notes

Verify the specific manufacturer designation, as this part number is associated with IBM but may be produced under license by Microchip Technology. Confirm the exact package dimensions and pinout against the official datasheet to ensure compatibility with existing PCB layouts. Check current product status, as availability may vary between active production and end-of-life stages depending on the supplier source.

Selection Notes

Select this component when a 4Mbit SRAM with HSTL signaling is required for legacy or specific IBM hardware architectures. Ensure the design supports the 3.3V operating voltage and accommodates the 119-BGA footprint. Consider the 256K x 18 organization width when designing memory controllers and data buses.

Part Context

This SRAM device is typically utilized within IBM server and storage infrastructure, such as the System x series or Storage Networking Gen 7 directors. It serves as high-speed buffer memory supporting data processing and transfer operations within enterprise-grade computing environments.

Replacement Considerations

The IBM 0418A81XLAA-4 is an 8Mbit variant in the same package family. Verify electrical compatibility before substitution.