AS7C31026B-10JCNTR

Overview

The AS7C31026B-10JCNTR is a 1 Mbit Static Random Access Memory (SRAM) manufactured by Alliance Memory. It features a memory organization of 64K x 16 and operates with a maximum access time of 10 ns. The device supports a supply voltage range from 3 V to 3.6 V, with a maximum power consumption current of 80 mA. It utilizes a parallel interface and is housed in a 44-pin SOJ package with a 400 mil footprint. Designed for surface mount technology, it functions within a commercial temperature range of 0°C to +70°C.

Feature Summary

• Provides high-speed asynchronous data access with a 10 ns cycle time for efficient system integration.
• Operates on a single 3.3 V power supply, ensuring compatibility with standard logic levels.
• Utilizes a 44-pin Small Outline J-Lead package suitable for compact surface-mount designs.

Applications

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

Procurement Notes

Verify the specific suffix 'JCNTR' against official datasheets to confirm tube versus reel packaging distinctions, as distributors may list conflicting packing methods. Ensure the component meets RoHS compliance requirements for your region. Cross-reference the manufacturer part number directly with Alliance Memory documentation to avoid confusion with similar series variants that may differ in pinout or electrical characteristics.

Selection Notes

Select this component when a 64K x 16 word width is required rather than an 8-bit wide alternative. The 10 ns speed class suits applications demanding rapid read/write cycles without complex timing controllers. Consider the SOJ-44 package constraints for PCB layout space. Verify that the 3.3V operating voltage aligns with the target system's power rails before finalizing the design.

Part Context

This part belongs to the AS7C31026B family of 1 Mbit SRAMs. It shares architectural similarities with other members like the AS7C31025B but differs in data bus width and package options. The B-series designation typically indicates specific process improvements over earlier generations. This model represents a commercial-grade variant optimized for cost-effective mass production in standard electronic devices.

Replacement Considerations

Direct substitutes include the AS7C31026B-10JIN for industrial temperature ranges or the AS7C31026B-10TCN for TSOP packages. Check pin-to-pin compatibility carefully when swapping between SOJ and TSOP formats. Alternative manufacturers may offer functionally equivalent parts, but verify voltage tolerances and access times match the original design specifications.