Manufacturer Part Number

7142SA55J8

Description

SRAM memory IC with dual ports and asynchronous operation. 16Kbit storage organized as 2K x 8. Parallel interface. 55 ns access and write cycle time. Comes in a 52-pin PLCC package, surface mount. Perfect for simultaneous access from two different devices.

Specifications

Memory Type: Volatile SRAM

Architecture: Dual Port, Asynchronous

Capacity: 16 Kbit (2K x 8 bits)

Access Time: 55 ns

Write Cycle Time: 55 ns

Voltage Supply: 4.5V to 5.5V

Package: 52-PLCC (19.13 x 19.13 mm), J-Lead

Mounting: Surface Mount

Operating Temp: 0°C to 70°C

RoHS: Non-compliant

MSL: Level 3 (168 Hours)

ECCN: EAR99

REACH: Not Affected

Device Structure

Consists of two separate memory ports, each capable of asynchronous access. Organized in 2K words of 8 bits each. All necessary control lines for independent read and write access.

Performance Characteristics

Fast access and write cycle times at 55 ns. Allows simultaneous read or write operations from both ports. Stable operation within specified temperature and voltage ranges. Limited to 16Kbit capacity.

Application Environments

Useful for systems needing rapid shared memory, such as networking equipment, communications systems, real-time processing, and multi-processor designs. Suitable for industrial and commercial temperature conditions.

Selection Guidelines

Ideal for designs needing parallel and dual port architecture with moderate speed and small memory size. Must be compatible with 4.5V to 5.5V logic systems and support PLCC mounting. Use when simultaneous, independent access by two devices is necessary.

Usage Considerations

Check that operating voltage and temperature match your application. Handle with ESD precautions during installation. Ensure your circuit supports PLCC packaging and memory organization. RoHS non-compliance may be an issue for some markets. Watch for product obsolescence and availability.

Potential Equivalent/Replacement Models

The 7142SA55J8 is obsolete. Equivalent or alternative models may be available from Renesas or other SRAM manufacturers, such as Cypress CY7C133, IDT 7132 series, or Texas Instruments dual-port SRAMs. Check specs for matching parameters: size, voltage, speed, and package. For more options, contact Ariat-Tech sales team for the latest stock and compatible replacement recommendations.

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