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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
- Write Cycle Time - Word, Page：20ns
- Voltage - Supply：4.5V ~ 5.5V
- Operating Temperature：-40°C ~ 85°C (TA)
- Mounting Type：Surface Mount
- Package / Case：32-BSOJ (0.400", 10.16mm Width)
- Supplier Device Package：32-SOJ
- Access Time：20 ns
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Overview
The AS7C1024B-20TJIN is a 1 Mbit asynchronous static random-access memory (SRAM) manufactured by Alliance Memory, Inc. It features a 128K x 8 organization and operates with a maximum access time of 20 ns. The device supports a parallel interface and functions within a supply voltage range of 4.5 V to 5.5 V. Maximum power consumption is specified at 80 mA. It is designed for surface-mount installation in a 32-pin SOJ package. The component supports single data rate (SDR) operations and is rated for an industrial temperature range from -40°C to +85°C.
Feature Summary
- Provides fast asynchronous random access with 20 ns speed capability
- Operates on standard 5V logic levels for broad compatibility
- Industrial-grade thermal stability ensures reliable performance in harsh environments
Applications
- Industrial control systems requiring robust memory solutions
- Embedded applications utilizing 5V logic interfaces
- Data buffering in high-speed parallel communication protocols
Procurement Notes
Verify the specific suffix TJIN to confirm the 32-pin SOJ package and industrial temperature rating. Ensure the design accommodates the 4.5V to 5.5V supply requirement. Confirm that the 80mA maximum current draw fits within the system's power budget. Check for RoHS compliance status as indicated in official documentation before finalizing procurement.
Selection Notes
Select this component when a 1Mbit capacity with 20ns access time is required in a 32-pin SOJ form factor. It is suitable for designs needing 5V operation and industrial temperature resilience. Consider alternative packages like TSOP if space constraints differ. Verify pinout compatibility with existing PCB layouts to ensure seamless integration without redesign.
Part Context
This part belongs to the AS7C1024B series of asynchronous SRAMs from Alliance Memory. The series offers various speed grades and packaging options. The B-series typically denotes specific process technologies optimized for density and performance. This model specifically targets industrial applications requiring reliable data retention and fast access times.
Replacement Considerations
Check for direct pin-compatible substitutes within the same manufacturer's portfolio. Verify that any replacement maintains the 128K x 8 organization and 20ns access time. Ensure voltage and temperature specifications match the original requirements.
