Manufacturer Part Number

7130SA45JI

Description

8Kbit dual-port SRAM IC. Parallel interface. Designed for fast data exchange in applications needing two independent access ports. Asynchronous operation enables independent read/write actions on both ports without clock synchronization. Classified as obsolete, last manufactured by Renesas Electronics.

Specifications

Memory size: 8Kbit (1K x 8).

Access time: 45 nanoseconds.

Write cycle time: 45 nanoseconds per word/page.

Supply voltage: 4.5V to 5.5V.

Operating temperature: -40°C to +85°C.

Package: 52-pin PLCC, J-lead, body dimensions 19.13x19.13mm.

Mounting type: Surface mount.

RoHS status: Non-compliant.

Moisture Sensitivity Level: MSL 3, 168 hours.

Device Structure

SRAM, comprised of two separate memory ports for dual access. Parallel interface circuitry allows simultaneous data transfer on both sides. Housed in a 52-LCC PLCC package for surface mounting. J-lead pins improve mechanical stability and simplify soldering.

Performance Characteristics

Fast access and write speed: 45ns.

Dual-port architecture allows non-blocking communication from two independent controllers or microprocessors.

Low voltage operation, suited for both 5V and slightly lower supply environments.

Operates reliably over wide temperature ranges, from industrial to commercial settings.

Application Environments

Used in networking hardware, DSP systems, shared-memory embedded devices, high-speed data buffering and transfer scenarios. Popular in applications requiring simultaneous read/write access from two sources, like multiprocessor systems and data acquisition equipment.

Selection Guidelines

Choose for applications needing fast, parallel, dual-port memory operation.

Check supply range and ensure 4.5V–5.5V compatibility.

Confirm operating temperature fits your needs.

Confirm package type (PLCC, surface-mount) matches your PCB design.

Ensure RoHS compliance is not required for your environment, as this model is non-compliant.

Usage Considerations

Sensitive to moisture—handle and store according to MSL 3 requirements (168 hours floor/life).

Obsolete status means limited availability; plan for future replacements.

Double-check pin designation and orientation when mounting.

Verify your design can accommodate non-RoHS materials if needed.

Ensure device is used within specified voltage and temperature ranges for reliability.

Potential Equivalent/Replacement Models

Available alternatives: 7130LA25JGI.

For a complete list of replacement or equivalent dual-port SRAM ICs, contact the Ariat-Tech sales team directly through our website. They can provide guidance for newer models, broader supply chain options, and further technical support.

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