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Product Detailed Parameters
- Description：IC SRAM 1MBIT PARALLEL 32SOJ
- Series：-
- Mfr：Alliance Memory, Inc.
- Package：Tube
- Memory Type：Volatile
- Memory Format：SRAM
- Technology：SRAM - Asynchronous
- Memory Size：1Mbit
- Memory Organization：128K x 8
- Memory Interface：Parallel
- Clock Frequency：-
- Write Cycle Time - Word, Page：20ns
- Voltage - Supply：3V ~ 3.6V
- Operating Temperature：0°C ~ 70°C (TA)
- Mounting Type：Surface Mount
- Package / Case：32-BSOJ (0.400", 10.16mm Width)
- Supplier Device Package：32-SOJ
- Access Time：20 ns
- Grade：-
- Qualification：-
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Overview
The AS7C31025B-20JCN is a 1-Mbit (128K x 8) asynchronous static random-access memory manufactured by Alliance Memory. It operates within a voltage range of 3.0V to 3.6V and features a maximum access time of 20ns. The device utilizes a parallel interface and is housed in a 32-pin SOJ package suitable for surface-mount installation. It supports single data rate operations and functions reliably across commercial temperature ranges from 0°C to +70°C, with a maximum supply current of 70mA.
Feature Summary
- Asynchronous operation with fast access times for standard SRAM applications
- Single 3.3V power supply compatibility for simplified system design
- Surface-mountable 32-pin SOJ package for compact integration
Applications
- General-purpose data storage in embedded systems
- Cache memory buffers for microprocessors
- Industrial control system memory modules
Procurement Notes
Verify the specific suffix JCN against official datasheets to confirm pinout and package dimensions match your PCB footprint requirements. Ensure the operating voltage aligns with your system's 3.3V rail specifications. Confirm RoHS compliance status through the manufacturer's latest documentation before finalizing procurement decisions.
Selection Notes
Select this component when a 128K x 8 organization is required with 20ns speed performance. It serves as a direct replacement for older 3.3V SRAMs in designs utilizing SOJ-32 footprints. Consider thermal management if operating near the upper temperature limit. Verify that the parallel interface timing matches your controller's capabilities.
Part Context
This part belongs to the AS7C31025B series of high-speed asynchronous SRAMs. It offers non-volatile-like retention characteristics while providing rapid read/write speeds. The series is designed for applications requiring reliable data storage without the complexity of flash programming cycles. It complements other memory solutions in mixed-signal electronic designs.
Replacement Considerations
Check for compatible substitutes such as the AS7C31025B-10 or AS7C31025B-15 variants if faster access times are needed. Verify pin-to-pin compatibility with TSOP or SOP packages if layout changes are permissible. Consult official cross-reference lists for equivalent parts from other manufacturers.
