7143LA55G/S2703

Overview

The Renesas Electronics Corporation 7143LA55G/S2703 is a high-speed 32 Kbit (2K x 16) Dual-Port Static Random Access Memory (SRAM). It features asynchronous parallel interface operation with a maximum access time of 55 ns. The device operates on a single 5V power supply within the 4.5 V to 5.5 V range and supports battery backup for data retention down to 2V. It is housed in a 68-pin BGA package.

Feature Summary

• True dual-ported memory cells allow simultaneous independent access to the same memory location from both ports without conflict.
• On-chip port arbitration logic manages bus contention, enabling full-speed error-free operation in 32-bit or wider systems without external discrete logic.
• Versatile write control allows separate management of lower and upper bytes for each port, facilitating easy expansion of data bus width.

Applications

• High-performance embedded systems requiring concurrent data access
• Telecommunications equipment utilizing master/slave dual-port configurations
• Industrial control systems needing reliable volatile storage

Procurement Notes

Verify component authenticity through authorized channels as this part may be obsolete. Confirm package integrity and pin alignment upon receipt. Check RoHS compliance status against specific project requirements. Validate datasheet revisions for any functional updates before finalizing design integration.

Selection Notes

Select this component when simultaneous read/write operations are required without external arbitration hardware. Ensure system voltage aligns with the 5V specification. Consider the 68-pin BGA footprint constraints during PCB layout. Verify thermal dissipation capabilities for the intended operating environment.

Part Context

This device belongs to the 7143 series of dual-port SRAMs from Renesas. It shares architectural similarities with the 7133 series but offers specific packaging and performance variations. The 7143 series is designed for applications demanding high throughput and complex memory interfacing.

Replacement Considerations

Check for direct substitutes such as IDT7133LA55G or other 7143 series variants with compatible pinouts and electrical characteristics. Verify package compatibility and timing parameters before substitution.