7142LA20J8

Overview

The Renesas Electronics Corporation 7142LA20J8 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 features asynchronous parallel interfaces with a maximum access time and write cycle time of 20 nanoseconds. It operates within a supply voltage range of 4.5 V to 5.5 V and supports a maximum supply current of 200 mA. The component is housed in a 52-pin Plastic Leadless Chip Carrier (PLCC) package designed for surface-mount installation.

Feature Summary

• Supports simultaneous independent read and write operations through separate port architectures
• Provides high-speed data transfer capabilities via asynchronous parallel interface logic
• Ensures data retention without requiring external refresh cycles typical of dynamic memory

Applications

• High-performance embedded systems requiring fast local data buffering
• Network infrastructure equipment utilizing packet switching and routing
• Industrial control systems needing reliable volatile memory storage

Procurement Notes

Verify the obsolete status of this component before initiating any procurement activities. Confirm that existing inventory or surplus channels can satisfy volume requirements. Assess the long-term availability risks associated with discontinued semiconductor parts. Ensure that design modifications accommodate potential lead time variations from non-standard suppliers.

Selection Notes

Select this component when dual-port architecture is required for concurrent master-slave memory access. Choose this part if a 20 ns access speed meets the system timing constraints. Consider the 52-PLCC package dimensions for printed circuit board layout compatibility. Evaluate power consumption limits against the specified 200 mA maximum supply current rating.

Part Context

This device belongs to the Renesas 7132/7142 series of dual-port SRAMs. These components are engineered for applications demanding independent port operation. The series offers various density options and access speeds. The 7142LA20J8 specifically addresses needs for 16-kbit capacity with moderate speed performance.

Replacement Considerations

Consult official datasheets for cross-reference information regarding compatible substitute devices. Verify pinout compatibility and electrical specifications before implementing any alternative components.