7133SA45J

Overview

The Renesas Electronics Corporation 7133SA45J is a dual-port static random-access memory (SRAM) integrated circuit with a storage capacity of 32Kb, organized as 2K words by 16 bits. It features asynchronous parallel interface operation with a maximum access time and write cycle time of 45 ns. The device operates on a single 5V power supply within the voltage range of 4.5V to 5.5V. It is housed in a 68-pin Plastic Leadless Chip Carrier (PLCC) package measuring 24.21x24.21 mm. The component supports commercial temperature ranges from 0°C to 70°C.

Feature Summary

• Dual-port architecture enabling independent simultaneous access from two separate ports for high-throughput data handling.
• Asynchronous operation allowing flexible timing control without reliance on a global clock signal.
• On-chip port arbitration logic manages bus conflicts automatically when both ports attempt access concurrently.

Applications

• High-speed data buffering in telecommunications systems
• FIFO buffer implementation in digital signal processing chains
• Cache memory expansion in embedded microcontroller systems

Procurement Notes

Verify RoHS compliance status carefully, as leaded versions are often marked non-compliant. Confirm package authenticity against the 68-PLCC specification. Check for End-of-Life notifications or last-time-buy constraints prior to ordering. Ensure supplier documentation matches the specific 45ns speed grade. Validate moisture sensitivity level handling requirements during assembly.

Selection Notes

Select this component when dual-port independence is required for concurrent read/write operations. The 45ns speed grade suits moderate-frequency asynchronous interfaces. Verify that the 68-PLCC footprint aligns with existing PCB layouts. Consider thermal dissipation capabilities within the specified operating temperature range. Ensure system voltage remains strictly within the 4.5V to 5.5V operational window.

Part Context

This part belongs to the IDT/Renesas 7133SA/LA series of high-speed dual-port SRAMs. It shares architectural similarities with the 7134SA series but differs in organization and pinout. The 7133SA45J specifically targets applications requiring 16-bit wide data paths with independent port access, distinguishing it from single-port or narrower-width alternatives in the same product family.

Replacement Considerations

IDT7133SA45J is a verified equivalent part number representing the same functional specifications and physical characteristics.