7142LA35C

Overview

The Renesas Electronics Corporation 7142LA35C is a dual-port static random access memory (SRAM) integrated circuit. It features 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 of 35 nanoseconds. It operates on a single 5.0-volt power supply within a voltage range of 4.5 to 5.5 volts. The component is housed in a 48-pin side brazed DIP package and supports independent read/write operations for both ports simultaneously.

Feature Summary

• Supports simultaneous independent read and write operations at two distinct ports
• Provides high-speed asynchronous data transfer capabilities
• Features TTL-compatible logic levels for straightforward system integration

Applications

• High-performance real-time processing systems requiring concurrent data access
• Industrial equipment control architectures
• Embedded communication interfaces needing fast buffer memory

Procurement Notes

Verify the specific package variant, as the part number may correspond to different physical housing types such as ceramic DIP or plastic variants depending on the suffix. Confirm RoHS compliance status as older manufacturing runs often lack lead-free certification. Check for end-of-life notifications or discontinuance notices from the manufacturer before finalizing procurement plans.

Selection Notes

Select this component when a design requires true dual-port memory architecture allowing two processors to access the same data space concurrently without bus contention. Ensure the system voltage aligns with the specified 5-volt logic requirements. Verify that the required access speed meets or exceeds the 35-nanosecond specification for the target application timing constraints.

Part Context

This component belongs to the IDT 7142LA series of dual-port SRAMs, originally developed by Integrated Device Technology and later acquired by Renesas Electronics. The series is characterized by its ability to facilitate efficient data sharing between microprocessors in complex embedded environments. It serves as a critical interconnect element in legacy industrial and telecommunications hardware designs.

Replacement Considerations

• 7142LA35PF
• 7142LA35PFG

FAQ

Can both ports operate independently?

Yes, the device allows simultaneous and independent read and write operations at Port A and Port B.

What is the logic family compatibility?

The input and output pins are compatible with standard TTL logic levels.