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GS8642Z36GB-250IV is listed in the Memory IC range at ChipApex. The manufacturer field lists GSI Technology Inc.. Its product description is IC SRAM 72MBIT PARALLEL 119FPBGA. Review the specifications below when checking this part for your BOM.
Memory IC specifications for GS8642Z36GB-250IV
- Description：IC SRAM 72MBIT PARALLEL 119FPBGA
- Series：-
- Mfr：GSI Technology Inc.
- Package：Tray
- Memory Type：Volatile
- Memory Format：SRAM
- Technology：SRAM - Synchronous, ZBT
- Memory Size：72Mbit
- Memory Organization：2M x 36
- Memory Interface：Parallel
- Clock Frequency：250 MHz
- Write Cycle Time - Word, Page：-
- Voltage - Supply：1.7V ~ 2V, 2.3V ~ 2.7V
- Operating Temperature：-40°C ~ 85°C (TA)
- Mounting Type：Surface Mount
- Package / Case：119-BGA
- Supplier Device Package：119-FPBGA (22x14)
- Access Time：-
Memory IC datasheet and documents for GS8642Z36GB-250IV
Memory IC Overview
The GS8642Z36GB-250IV is a 72Mbit Synchronous Static RAM with a 2M x 36 organization. It supports a maximum clock frequency of 250 MHz and features a 119-bump BGA package. The device operates on a 1.8V or 2.5V core supply and I/O supply. Access times are specified at 6.5 ns for Flow Through mode and 3.0 ns for Pipeline mode.
Memory IC Feature Summary
- NBT functionality enables zero wait Read-Write-Read bus utilization
- User-configurable Pipeline and Flow Through operating modes
- IEEE 1149.1 JTAG-compatible Boundary Scan support
- Byte write operation capability with 9-bit Bytes
Memory IC Applications
- High-speed data buffering in network equipment
- Cache memory implementation in embedded systems
- FIFO applications requiring high bandwidth
- Industrial control system data storage
Memory IC Procurement Notes
Verify the specific suffix IV indicates industrial temperature range compliance against official GSI Technology documentation. Confirm the 119-bump BGA package dimensions match the target PCB footprint. Ensure voltage requirements align with the 1.8V or 2.5V supply specifications provided in the datasheet.
Memory IC Selection Notes
Select this component when zero turnaround time between read and write cycles is required. Choose the Pipeline mode for higher throughput or Flow Through mode for lower latency. Verify compatibility with existing NtRAM, NoBL, or ZBT SRAM footprints if performing a direct replacement.
Memory IC Part Context
This part belongs to the GS8642ZxxV family of 72Mb Synchronous NBT SRAMs. It shares pinout compatibility with other devices in the series, including 18-bit and 72-bit variants. The technology utilizes CMOS processes optimized for high-frequency synchronous operations.
Memory IC Replacement Considerations
Check pin compatibility with NtRAM, NoBL, and ZBT SRAMs. Verify that the FT pin configuration matches the target board design for the desired Pipeline or Flow Through mode.
Memory IC FAQ
How is the operating mode selected?
The FT pin determines the mode; driving it low selects Flow Through mode, while leaving it floating or high selects Pipeline mode.
What is the function of the ZZ pin?
The ZZ pin controls Sleep Mode; driving it high enters power-down after two cycles, reducing current consumption.
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