7142SA55P

Overview

The Renesas Electronics Corporation 7142SA55P is a dual-port static random-access memory (SRAM) integrated circuit. It provides a storage capacity of 16 kilobits, organized as 2K words by 8 bits. The device utilizes an asynchronous parallel interface with a maximum access time and write cycle time of 55 nanoseconds. It operates within a supply voltage range of 4.5V to 5.5V and supports through-hole mounting in a 48-pin dual in-line package (PDIP). The component is designed for commercial temperature ranges from 0°C to 70°C.

Feature Summary

• Dual-port architecture enabling independent simultaneous read/write operations on both ports.

Applications

• High-speed data buffering in industrial control systems.
• Real-time processing applications requiring low-latency memory access.
• Embedded systems utilizing parallel SRAM interfaces.

Procurement Notes

This component is officially discontinued and no longer manufactured by Renesas Electronics. Verification of availability is restricted to existing stock held by distributors or secondary market suppliers. Buyers must confirm the authenticity of legacy inventory and check for specific environmental compliance status, such as RoHS non-compliance, prior to acquisition. Replacement strategies should be evaluated immediately due to end-of-life status.

Selection Notes

Designers selecting this part must account for its discontinuation and limited future availability. The 48-PDIP through-hole package requires specific PCB layout considerations compared to surface-mount alternatives. Engineers should verify that the 55ns speed and 16Kb capacity meet system requirements before committing to legacy sourcing. Alternative packages within the same family may offer different thermal or form-factor characteristics.

Part Context

The 7142SA55P belongs to the 7142SA series of dual-port SRAMs produced by Renesas Electronics. This series is characterized by CMOS technology and asynchronous operation. The 'P' suffix denotes the 48-pin PDIP package variant. Related parts in the family include variations with different capacities, speeds, and package types, such as the 7142SA55J8 in PLCC packaging.

Replacement Considerations

Direct pin-compatible replacements are not explicitly confirmed in public documentation for this specific package. Designers should consult official datasheets for the 7142SA/LA series to identify functional equivalents or upgraded variants offered by Renesas.