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Product Detailed Parameters
- Description：IC SRAM 1MBIT PARALLEL 32SOJ
- Series：-
- Mfr：Alliance Memory, Inc.
- Package：Tape & Reel (TR)
- 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 (0.300", 7.62mm Width)
- Supplier Device Package：32-SOJ
- Access Time：20 ns
- Grade：-
- Qualification：-
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Overview
The AS7C31025B-20TJCNTR is a 1 Mbit (128K x 8) asynchronous static random-access memory manufactured by Alliance Memory. It operates at a maximum access time of 20 ns and requires a supply voltage between 3.0 V and 3.6 V. The device utilizes a 32-pin Small Outline J-Lead package with surface-mount installation. It supports single data rate parallel interface operations within a commercial temperature range of 0°C to +70°C.
Feature Summary
- Asynchronous operation for flexible system integration
- Single data rate parallel interface architecture
- Surface-mount compatible 32-pin SOJ packaging
Applications
- Embedded systems requiring non-volatile-like speed without retention
- Industrial control units operating in commercial temperature environments
- Consumer electronics utilizing 3.3V logic levels
Procurement Notes
Verify the specific suffix TJCNTR against official datasheets to confirm the tape-and-reel packaging configuration, as standard variants may use tube packaging. Ensure the component meets RoHS compliance requirements for your region. Confirm that the 20 ns access time aligns with your system timing constraints before finalizing procurement decisions.
Selection Notes
Select this component when a 1 Mbit capacity with 8-bit word width is required. The 20 ns speed grade suits applications where moderate latency is acceptable. The 3.3V operating voltage makes it suitable for modern low-power digital circuits. Consider the SOJ-32 footprint during PCB layout planning to ensure adequate clearance for the J-leads.
Part Context
This part belongs to the AS7C31025B series of fast asynchronous SRAMs from Alliance Memory. The series offers various speed grades and packaging options to accommodate different design needs. The B-series designation typically indicates specific electrical characteristics optimized for 3.3V operation, distinguishing it from older 5V-only generations.
Replacement Considerations
Compatible substitutes include other 128K x 8 asynchronous SRAMs with 3.3V operation and similar pinouts. Verify pin compatibility and electrical specifications carefully when replacing components to ensure functional equivalence in the target circuit.
