7134LA70JI8

Overview

The Renesas Electronics Corporation 7134LA70JI8 is a dual-port static random access memory (SRAM) integrated circuit with a total storage capacity of 32 kilobits. The memory organization is structured as 4K words by 8 bits, accessed via a parallel interface. This asynchronous component features a maximum access time of 70 nanoseconds and operates within a supply voltage range of 4.5 volts to 5.5 volts. It is housed in a 52-lead Plastic Leadless Chip Carrier (PLCC) package measuring 19.13mm by 19.13mm. The device supports surface mount installation and functions reliably across an ambient temperature range of -40°C to +85°C.

Feature Summary

• Dual-port architecture enabling independent simultaneous read and write operations on separate ports.

Applications

• High-speed data buffering in industrial control systems
• Real-time processing applications requiring concurrent data access
• Embedded memory solutions for asynchronous communication interfaces

Procurement Notes

This component is officially designated as obsolete by the manufacturer. Procurement must rely exclusively on remaining stock from authorized distributors or secondary market suppliers. Verify part authenticity and physical condition carefully, as availability is limited and supply chain continuity cannot be guaranteed. Confirm RoHS compliance status prior to integration into new designs.

Selection Notes

Select this specific part number when a 52-lead PLCC package is required for dual-port SRAM functionality. Ensure the design accommodates the 70ns access speed and the specified 4.5V to 5.5V power supply constraints. Consider the -40°C to +85°C operating temperature range against environmental requirements. Note that alternative packages such as DIP or CDIP exist within the same series but differ in pin count and form factor.

Part Context

The 7134LA70JI8 belongs to the IDT/Renesas 7134LA series of CMOS dual-port memories. This series provides non-volatile-like performance with volatile SRAM technology, allowing two processors to share data efficiently. The 'J' suffix indicates the PLCC package type, while 'I8' denotes the industrial temperature grade and tape-and-reel packaging configuration.

Replacement Considerations

Direct replacements include other variants within the 7134LA series, such as 7134SA70J or 7134LA70P, provided the package style matches the existing footprint. Cross-package substitution requires schematic and PCB layout modifications due to differing pin configurations.