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Product Detailed Parameters
- Description：IC SRAM 4MBIT
- Series：-
- Mfr：IBM
- Package：Bulk
- Memory Type：-
- Memory Format：SRAM
- Technology：-
- Memory Size：4Mbit
- Memory Organization：128K x 36
- Memory Interface：-
- Clock Frequency：-
- Write Cycle Time - Word, Page：-
- Voltage - Supply：-
- Operating Temperature：-
- Mounting Type：Surface Mount
- Package / Case：-
- Supplier Device Package：-
- Access Time：-
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Overview
The IBM 0436A4ACLAB-43 is a static random-access memory (SRAM) integrated circuit with a total capacity of 4 megabits. It is organized as 128K words by 36 bits, providing the necessary data width for error correction code (ECC) applications in server and mainframe systems. The device utilizes CMOS technology and features a typical access time of 4.3 nanoseconds. It is housed in a 119-lead Plastic Ball Grid Array (PBGA) package, designed for high-density surface-mount assembly on printed circuit boards.
Feature Summary
- Provides 36-bit data output width suitable for ECC implementations
- Utilizes CMOS technology for low power consumption
- High-speed 4.3ns access time performance
- 119-lead PBGA package for dense board integration
Applications
- Server system memory modules
- Mainframe computer cache memory
- Workstation high-speed buffer storage
Procurement Notes
Verify the specific suffix designation against official IBM documentation to ensure compatibility with your system requirements. Confirm that the component matches the required 119-lead PBGA footprint and electrical specifications before procurement. Ensure sourcing from authorized channels to guarantee authenticity and traceability for critical infrastructure components.
Selection Notes
Select this component when a 36-bit wide SRAM interface is required for ECC protection in high-performance computing environments. The 4.3ns speed class supports fast processor-to-memory communication. Consider the PBGA package constraints for thermal management and PCB layout density during the design phase.
Part Context
This part belongs to IBM's legacy enterprise memory portfolio, designed for mission-critical systems requiring high reliability and data integrity. The 128Kx36 organization is distinct from standard 8-bit or 16-bit memories, specifically targeting architectures that integrate parity or ECC checking directly at the memory controller level.
Replacement Considerations
No public confirmed substitute part numbers are available in the provided documentation. Cross-referencing requires strict adherence to pinout, voltage, and timing specifications.
