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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 AS7C31024B-20JCN is a 1 Mbit asynchronous static random-access memory (SRAM) manufactured by Alliance Memory. It features a memory organization of 128K x 8 bits and operates with a maximum access time of 20 ns. The device supports a supply voltage range from 3 V to 3.6 V, with a maximum power consumption current of 55 mA. It utilizes a parallel interface and is housed in a 32-pin TSOP II package suitable for surface mount technology. The component is rated for commercial operating temperatures between 0°C and +70°C.
Feature Summary
- Asynchronous operation with fast 20 ns access time
- Single 3.3 V power supply compatibility
- Surface-mount TSOP II packaging for compact designs
Applications
- General-purpose data storage in embedded systems
- Cache memory buffers for microprocessors
- Industrial control system data logging
Procurement Notes
Verify the specific suffix JCN confirms the TSOP II package and commercial temperature grade against official datasheets. Confirm RoHS compliance status and humidity sensitivity handling requirements during assembly. Ensure the ordering quantity matches the manufacturer's standard tube packaging specifications rather than reel quantities.
Selection Notes
Select this component when a 1 Mbit capacity with 8-bit width is required for 3.3 V logic interfaces. Compare the 20 ns speed against faster variants if higher throughput is needed. Consider the TSOP II footprint constraints relative to alternative packages like SOJ or TSSOP within the same memory family.
Part Context
This part belongs to the AS7C31024B series of 1 Mbit SRAMs. It shares architectural similarities with other members like the AS7C31024B-12JCN but differs in access speed and potentially package options. The series provides non-volatile retention capabilities typical of SRAM technology while offering rapid read/write cycles for active processing tasks.
Replacement Considerations
Direct substitutes include the AS7C31024B-12JCN for faster performance or the AS7C31024B-20TCN which uses a TSOP package. Verify pin compatibility and electrical characteristics before swapping.
