7142LA45L48B

Overview

The Renesas Electronics Corporation 7142LA45L48B is a dual-port, asynchronous static random-access memory (SRAM) integrated circuit. It provides a storage capacity of 16 kilobits organized as 2K words by 8 bits. The device features a parallel interface with a maximum access time of 45 nanoseconds. It operates within a supply voltage range of 4.5V to 5.5V and supports surface-mount installation in a 48-lead Plastic Leadless Chip Carrier (PLCC) package measuring 14.22mm x 14.22mm. The component is rated for an extended industrial operating temperature range from -55°C to +125°C.

Feature Summary

• Dual-port architecture enabling independent simultaneous read/write operations on separate ports
• Asynchronous operation allowing flexible timing control without external clock synchronization
• Extended industrial temperature rating suitable for harsh environmental conditions
• Parallel interface supporting standard data bus connections

Applications

• Industrial automation systems requiring high-speed data buffering
• Telecommunications equipment needing reliable temporary storage
• Embedded control systems operating in extreme temperatures
• Test and measurement instruments requiring fast memory access

Procurement Notes

Verify RoHS compliance status as the component may not meet current environmental directives. Confirm end-of-life or obsolescence status through official Renesas channels before finalizing procurement plans. Ensure packaging specifications match production requirements. Validate that the 48-LCC package dimensions align with existing PCB footprints. Check for available documentation updates regarding pinout or electrical characteristics.

Selection Notes

Select this component when dual-port functionality is required for concurrent data handling. Choose based on the need for 45ns access speed within a 5V logic environment. Consider the 48-PLCC package for board space constraints. Verify temperature requirements against the -55°C to +125°C range. Ensure compatibility with parallel interface protocols used in the target system design.

Part Context

This part belongs to the Renesas 7142LA series of dual-port SRAMs. It shares architectural similarities with other members like the 7142LA100J8 but offers faster access times. The series is designed for applications requiring independent port access. It complements Renesas' broader memory portfolio. The 48-lead PLCC package is common in legacy industrial designs.

Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided source material. Consult Renesas technical support for qualified alternatives. Verify pin-to-pin compatibility if considering similar devices from other manufacturers.