7142LA100C

Overview

The Renesas Electronics Corporation 7142LA100C is a 16Kbit (2K x 8) dual-port static random-access memory (SRAM) IC. It features asynchronous parallel interface with a maximum access time of 100 ns. The device operates on a single 5V supply voltage within the range of 4.5V to 5.5V. It is housed in a 48-SIDE BRAZED package, designed for surface mount installation. The component supports standard TTL logic levels and includes busy and slave I/O functions for managing simultaneous port access.

Feature Summary

• Dual-port architecture enabling independent read/write operations on two separate ports
• Asynchronous parallel interface supporting standard TTL logic levels
• Integrated control signals including busy and slave I/O for bus arbitration

Applications

• High-speed data buffering in communication systems
• Cache memory implementation in embedded processors
• FIFO buffers in digital signal processing applications

Procurement Notes

Verify RoHS compliance status as historical documentation indicates non-compliance. Confirm current availability through authorized distributors, noting potential obsolescence or limited stock. Ensure packaging type matches design requirements, as variants exist in different form factors. Validate lead-free status if required by specific manufacturing standards.

Selection Notes

Select this component when dual-port functionality is required for concurrent data access without external arbitration logic. The 100 ns speed suits moderate-frequency asynchronous systems. Consider the 48-SIDE BRAZED package constraints during PCB layout. Verify power supply stability within the 4.5V to 5.5V range to ensure reliable operation across the specified temperature range.

Part Context

Part of the 7142LA series of dual-port SRAMs from Renesas. This series offers varying densities and speeds. The 7142LA100C specifically provides 16Kbit capacity. It shares architectural similarities with other members like the 7142LA100J8 but differs in package type. The series is designed for applications requiring high-speed memory sharing between microprocessors or DSPs.

Replacement Considerations

Direct substitutes include IDT7142LA100J8 and IDT7142SA100J8, which share identical electrical specifications but differ in package configuration. Verify pin compatibility and thermal characteristics before substitution. Alternative families may require level shifting or timing adjustments.