AS7C256A-15JCNTR

Overview

The AS7C256A-15JCNTR is a static random-access memory (SRAM) integrated circuit manufactured by Alliance Memory, Inc. It features a storage capacity of 4 Mbit organized as 256K x 16 bits. The device operates with a maximum access time of 15 ns and utilizes a parallel interface. It supports a supply voltage range from 3 V to 3.6 V, with a maximum power consumption current of 130 mA. The component is housed in a 44-pin Small Outline J-Lead (SOJ) package designed for surface-mount technology. It is rated for commercial temperature operation, functioning within a range of 0°C to +70°C. The unit is supplied in tape and reel packaging.

Feature Summary

• Provides high-density non-volatile data retention capabilities through synchronous static random-access memory architecture.
• Supports standard parallel data transfer protocols for direct microprocessor integration.
• Operates reliably within commercial industrial temperature environments without requiring active thermal management.

Applications

• Embedded systems requiring fast local data buffering
• Industrial control units needing reliable volatile memory storage
• Consumer electronics utilizing standard SRAM interfaces

Procurement Notes

Verify the specific suffix 'CTR' indicates tape and reel packaging rather than tube configuration when sourcing. Confirm the 44-pin SOJ footprint matches the target PCB design constraints. Ensure the 3.3V operating voltage aligns with the system power rails. Check RoHS compliance documentation for environmental regulations relevant to the deployment region.

Selection Notes

Select this component when a 4 Mbit capacity with 16-bit word width is required for parallel processing applications. The 15 ns access speed suits general-purpose computing tasks where moderate latency is acceptable. Consider the 44-pin SOJ package dimensions against available board space. Verify that the commercial temperature range meets the operational environment requirements.

Part Context

This part belongs to the AS7C256A series of static random-access memories. The series offers various density options and package configurations to support diverse embedded memory needs. The manufacturer provides these components for use in standard digital logic circuits requiring fast read and write operations.

Replacement Considerations

Check for equivalent parts with matching 4 Mbit capacity and 16-bit organization. Ensure replacement devices support the same 3.3V supply voltage and 15 ns access time. Verify pin compatibility or assess necessary adapter solutions if the package type differs.