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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 (0.400", 10.16mm Width)
- Supplier Device Package：32-SOJ
- Access Time：20 ns
- Grade：-
- Qualification：-
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Overview
The AS7C31024B-20JCNTR is a 1 Mbit (128K x 8) asynchronous static random-access memory (SRAM) manufactured by Alliance Memory. It operates with a supply voltage range of 3.0 V to 3.6 V and features a maximum access time of 20 ns. The device utilizes a parallel interface and is housed in a 32-pin TSOP I package suitable for surface mount technology. It supports single data rate (SDR) operations within a commercial temperature range of 0°C to +70°C, with a maximum power consumption of 55 mA.
Feature Summary
- Asynchronous operation with fast 20 ns access time
- Single 3.3 V power supply compatibility
- Surface-mount TSOP I packaging for compact designs
Applications
- Embedded systems requiring non-volatile-like temporary storage
- Industrial control units operating at standard logic levels
- Consumer electronics utilizing 3.3 V microcontrollers
Procurement Notes
Verify the specific suffix JCNTR against official datasheets to confirm the TSOP-32 package and reel packaging configuration. Ensure the 20 ns speed grade matches system timing requirements. Confirm RoHS compliance status through current manufacturer documentation before integration into production lines.
Selection Notes
Select this component when a 128K x 8 organization is required with 3.3 V operation. The 20 ns speed is suitable for moderate-frequency asynchronous buses. Compare pinout compatibility with existing PCB layouts designed for TSOP-32 packages. Verify that the 55 mA active current fits within the target power budget constraints.
Part Context
This part belongs to the AS7C31024B series of high-speed SRAMs. It serves as a direct replacement for older generations of 1 Mbit SRAMs in legacy designs. The device maintains electrical compatibility with standard CMOS logic families while offering improved density over previous 512 Kbit variants.
Replacement Considerations
Check for AS7C31024B-20TCN or similar variants if tray packaging is preferred over reels. Verify pin-to-pin compatibility with other 32-pin TSOP SRAMs from different manufacturers before substitution.
