ChipApex | Global Electronic Components Supplier
SEARCH
Search Product
Search Post
— IC芯片 | 连接器 | 传感器 | 被动器件 —
Consult the customer manager about the wholesale price.
consultation hotline：86-132-6715-2157
email：[email protected]
Contact the product manager for consultation. One-stop consultation is available.
Do you want a lower wholesale price? Please send us your inquiry and we will reply immediately.
Product Detailed Parameters
- Description：IC SRAM 256KBIT PARALLEL 28SOJ
- Series：-
- Mfr：Alliance Memory, Inc.
- Package：Tube
- Memory Type：Volatile
- Memory Format：SRAM
- Technology：SRAM - Asynchronous
- Memory Size：256Kbit
- Memory Organization：32K x 8
- Memory Interface：Parallel
- Clock Frequency：-
- Write Cycle Time - Word, Page：15ns
- Voltage - Supply：4.5V ~ 5.5V
- Operating Temperature：-40°C ~ 85°C (TA)
- Mounting Type：Surface Mount
- Package / Case：28-BSOJ (0.300", 7.62mm Width)
- Supplier Device Package：28-SOJ
- Access Time：15 ns
- Grade：-
- Qualification：-
Download product information
Overview
The AS7C256A-15JIN is a 256 Kbit (32K x 8) asynchronous static random-access memory manufactured by Alliance Memory. It operates within a voltage range of 4.5 V to 5.5 V and features a maximum access time of 15 ns. The device utilizes a parallel interface and is housed in a 28-pin Small Outline J-Lead (SOJ) package designed for surface-mount technology. It supports an industrial temperature range from -40°C to +85°C and has a maximum supply current of 140 mA.
Feature Summary
- Asynchronous parallel SRAM architecture with 32K x 8 organization
- Industrial temperature rating spanning -40°C to +85°C
- Surface-mount SOJ-28 package configuration
Applications
- Industrial control systems requiring robust environmental tolerance
- Embedded data storage in consumer electronics
- Automotive electronic modules operating under variable thermal conditions
Procurement Notes
Verify the specific suffix 'JIN' against official datasheets to confirm the 28-pin SOJ package and industrial temperature grade. Ensure compatibility with 5V logic levels and check for RoHS compliance status prior to integration. Confirm lead times as production cycles may vary based on manufacturer schedules.
Selection Notes
Select this component when a 256 Kbit capacity is required with 15 ns speed in an industrial environment. Compare against TSOP or PDIP variants if package constraints differ. Verify that the 140 mA active current draw fits within the system power budget and that the 5V supply rail aligns with the design specifications.
Part Context
This part belongs to the AS7C256A series of high-speed CMOS static RAMs. The series offers various access speeds and packaging options, including commercial and industrial temperature ranges. The AS7C256A-15JIN specifically targets applications needing reliable non-volatile-like performance in volatile memory form factors within harsh environments.
Replacement Considerations
Check for direct pin-compatible alternatives such as other 28-pin SOJ SRAMs with identical 5V operation and 15 ns timing. Verify that substitute parts maintain the same industrial temperature range and memory organization.
