AS7C31026B-12JCN

Overview

The AS7C31026B-12JCN is a 1 Mbit (64K x 16) asynchronous static random-access memory manufactured by Alliance Memory. It operates within a supply voltage range of 3.0 V to 3.6 V and features a maximum access time of 12 ns. The device utilizes a parallel interface and is housed in a 44-pin Small Outline J-Lead package designed for surface mount technology. It supports single data rate operations and functions reliably across a commercial temperature range from 0°C to +70°C, with a maximum power consumption of 75 mA.

Feature Summary

• Provides high-speed asynchronous data access with a 12 ns cycle time for efficient system integration.
• Operates on a standard 3.3 V power supply, ensuring compatibility with modern low-voltage logic families.
• Features a compact 44-pin SOJ form factor suitable for space-constrained printed circuit board layouts.

Applications

• Embedded systems requiring fast local data storage
• Industrial control units needing reliable volatile memory
• Consumer electronics utilizing 3.3 V logic interfaces

Procurement Notes

Verify the specific suffix JCN confirms the 44-pin SOJ package and commercial temperature rating. Ensure the design supports 3.3 V logic levels, as this part does not support 5 V operation. Confirm humidity sensitivity handling requirements during assembly. Check for RoHS compliance documentation if required by regional regulations. Validate that the 64K x 16 organization matches the target application's address and data bus width.

Selection Notes

Select this component when a 16-bit data width is required at 3.3 V. Compare against the AS7C31024B series if an 8-bit interface is acceptable, noting the pin count difference. Consider the AS7C31025B-12JIN for industrial temperature ranges (-40°C to +85°C). Ensure the PCB layout accommodates the 400 mil SOJ footprint. Verify that the 12 ns speed meets the system clock requirements.

Part Context

This part belongs to the AS7C31026B family of 1 Mbit SRAMs. It shares architectural similarities with other Alliance Memory SRAMs but is distinct due to its 16-bit width and 3.3 V operation. The JCN suffix denotes the specific package and temperature grade, differentiating it from TSOP or industrial variants within the broader product line.

Replacement Considerations

AS7C31026B-12TCN offers the same electrical specifications in a TSOP package. AS7C31025B-12JIN provides industrial temperature range performance. AS7C31024B-12JCN is an 8-bit alternative with a different pinout.