27C512-12/L092

Overview

The Microchip Technology 27C512-12/L092 is a CMOS EPROM providing 512 Kbit (64K x 8) of non-volatile memory storage. It features a parallel interface with an access time of 120 ns and operates within a supply voltage range of 4.5V to 5.5V. The component is housed in a 32-pin PLCC package, specifically identified as 32-LCC (J-Lead), with dimensions of 11.43x13.97 mm. Designed for asynchronous operation, it utilizes common I/O types and supports standard electrical specifications for embedded memory applications.

Feature Summary

• Provides reliable non-volatile data retention using CMOS EPROM technology
• Supports high-speed parallel data access with 120 ns cycle time
• Compatible with standard 5V logic systems via defined voltage operating range

Applications

• Embedded firmware storage in industrial control systems
• Program memory for microcontroller-based hardware designs
• Data logging and configuration storage in consumer electronics

Procurement Notes

Verify the specific suffix L092 corresponds to the 32-PLCC package variant when sourcing. Confirm RoHS compliance status as older EPROM variants may differ from current manufacturing standards. Ensure the supplier provides genuine Microchip Technology components to guarantee parameter accuracy and long-term reliability for critical embedded applications.

Selection Notes

Select this part for designs requiring parallel interface simplicity and established EPROM reliability. Compare against OTP alternatives if reprogramming capability is not needed. Consider the physical footprint of the 32-PLCC package during PCB layout planning. Evaluate power consumption requirements against the specified 4.5V to 5.5V operating range for system compatibility.

Part Context

This component belongs to the 27C512 family of 512 Kbit EPROMs manufactured by Microchip Technology. It shares architectural similarities with other members like the 27C512-10I/TS but differs in package type and access speed specifications. The series is widely recognized for its robustness in legacy and modern embedded systems requiring stable, read-only program storage.

Replacement Considerations

Direct substitutes include the 27C512-10I/TS for TSOP-28 packaging or other 27C512 variants with compatible pinouts. Verify electrical parameters such as access time and voltage ranges before substitution. Ensure the replacement maintains the same memory organization and interface type to avoid circuit redesign.