7142SA20J

Overview

The Renesas Electronics Corporation 7142SA20J is a dual-port static random access memory (SRAM) integrated circuit. It features an 8K-bit storage capacity organized as 1K x 8 bits. The device utilizes a parallel interface with a maximum access time of 20 ns. It operates on a single 5V power supply, with voltage specifications ranging from 4.5 V to 5.5 V. The component is housed in a 52-pin PLCC package and supports surface mount installation. It is designed for asynchronous operation within commercial temperature limits.

Feature Summary

• True dual-ported architecture enabling simultaneous independent access to the same memory location by two separate processors.
• Asynchronous parallel interface supporting standard TTL-compatible logic levels for straightforward system integration.
• Automatic power-down functionality controlled by chip enable signals to minimize standby power consumption.

Applications

• High-speed data buffering in embedded systems requiring concurrent read/write operations.
• Cache memory implementation in microcontroller-based applications.
• Data storage in industrial control systems utilizing dual-processor architectures.

Procurement Notes

Verify component authenticity through authorized distributors due to potential availability constraints. Confirm RoHS compliance status as the part may not meet current environmental directives. Validate package integrity upon receipt, as moisture sensitivity requires proper handling. Check datasheet revisions for any pinout or electrical specification updates prior to final design integration.

Selection Notes

Select this component when dual-port capability is required for 8K-bit memory configurations. Ensure the system design accommodates the 52-PLCC package dimensions and thermal requirements. Verify that the 20 ns access speed meets the timing constraints of the host processor. Consider the single 5V supply requirement for power budget calculations.

Part Context

This device belongs to the 7142SA series of dual-port SRAMs manufactured by Renesas Electronics. It serves as a high-speed memory solution for applications needing simultaneous access without external arbitration logic. The series is characterized by CMOS technology and low power consumption modes.

Replacement Considerations

IDT7142SA20J is a confirmed substitute part number for this component. Verify pin compatibility and electrical specifications before substitution.