7142LA35L48B

Overview

The IDT7142LA35L48B is a dual-port static random-access memory (SRAM) device manufactured by Integrated Device Technology. It features a memory organization of 2K words by 8 bits, providing a total capacity of 16 kilobits. The component supports asynchronous operation with a maximum access time of 35 nanoseconds. It utilizes a 48-lead ceramic quad flatpack no-lead (CQFN) or leaded ceramic quad flatpack (LCC) package configuration. The device operates on a single 5V power supply and is designed for high-speed data transfer applications requiring independent port access.

Feature Summary

• Dual-port architecture enabling simultaneous independent access from two separate ports
• Asynchronous operation mode allowing flexible timing control without clock synchronization
• On-chip port arbitration logic to manage bus contention between accessing ports

Applications

• Processor-to-peripheral communication interfaces
• Data buffering in high-speed digital signal processing systems
• Network switch buffer memory implementations

Procurement Notes

Verify the specific package variant and lead finish upon ordering, as suffixes may indicate different material compositions or termination styles. Confirm RoHS compliance status and end-of-life notifications directly with the manufacturer or authorized distributors before finalizing procurement plans. Ensure the selected part number matches the required pinout and electrical specifications for the target design.

Selection Notes

Select this component when a design requires independent read/write access to shared memory from two distinct masters. The 35ns speed grade offers a balance between performance and power consumption for asynchronous systems. Consider the 48-pin LCC package constraints regarding PCB layout and thermal dissipation requirements during the initial hardware design phase.

Part Context

This device belongs to the IDT 7142 family of dual-port SRAMs, which are widely used in telecommunications and industrial automation. The LA suffix typically denotes military-grade temperature range capabilities compared to commercial variants. These components serve as critical interface elements in systems requiring low-latency data exchange between processors and peripherals.

Replacement Considerations

Cross-reference with IDT7142SA35L48B for commercial temperature range alternatives. Verify compatibility with Renesas 7142LA35L48B equivalents if sourcing from alternative manufacturers. Ensure pin-to-pin compatibility and identical electrical characteristics before substituting.