AS7C31026B-10JINTR

Overview

The AS7C31026B-10JINTR is a 1 Mbit (64 K x 16) asynchronous static random-access memory manufactured by Alliance Memory. It operates on a single 3.3 V power supply with a maximum voltage of 3.6 V and a minimum of 3.0 V. The device features a 10 ns access time and supports parallel interface communication. Maximum power consumption current is specified at 80 mA. It is housed in a 44-pin Small Outline J-Lead (SOJ) package designed for surface mount technology. The component is rated for commercial operating temperatures ranging from 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 standard 3.3 V logic level, ensuring compatibility with modern low-voltage digital circuits.
• Utilizes a compact 44-pin SOJ surface-mount package to optimize board space utilization.

Applications

• Embedded systems requiring non-volatile-like speed without the complexity of flash management
• Industrial control units operating within commercial temperature ranges
• Consumer electronics utilizing 3.3 V logic families

Procurement Notes

Verify the specific suffix 'JINTR' against official datasheets to confirm tape-and-reel packaging and industrial-grade temperature ratings if required, as standard 'JCN' variants may differ in packaging or temp range. Ensure the 3.3 V supply rail stability matches the 3.0 V to 3.6 V operational window. Confirm moisture sensitivity handling procedures are followed due to SMD construction. Cross-reference pinouts with the specific revision to avoid interface mismatches during PCB assembly.

Selection Notes

Select this component when a 64 K x 16 organization is necessary for 16-bit data paths. The 10 ns speed class suits applications demanding rapid read cycles. Consider the SOJ-44 footprint constraints during layout. Compare against TSOP II alternatives if lead length requirements differ. Validate that the commercial temperature range meets the environmental conditions of the final assembly.

Part Context

This part belongs to the AS7C31026B family of 1 Mbit SRAMs. Variants within this series typically share the same core memory array but differ in access speeds, voltage levels, and packaging styles. The 'B' designation often indicates a specific generation or feature set within Alliance Memory's portfolio. Understanding the family hierarchy helps in identifying compatible replacements or upgrades with different timing or voltage specifications.

Replacement Considerations

Check for AS7C31026B-10JCN for tube-packaged equivalents. Verify AS7C31026B-12JCNTR for slower 12 ns options in reel packaging. Ensure any substitute maintains the 64 K x 16 density and 3.3 V operation.

FAQ

What is the difference between the AS7C31026B-10JCN and AS7C31026B-10JINTR?

The primary differences lie in the packaging format and potentially the temperature rating. The 'JCN' suffix typically denotes tube packaging, while 'JINTR' indicates tape-and-reel packaging. Additionally, the 'I' in the suffix often signifies an extended or industrial temperature range compared to the commercial range of the standard variant.

Is the AS7C31026B-10JINTR suitable for 5V logic interfaces?

No, this device is designed for a 3.3 V power supply. Applying 5 V directly to the I/O pins or VCC may damage the component. Level shifters are required if interfacing with 5V logic systems.