STMicroelectronics

M27C4001-10C1

M27C4001-10C1 Description

The M27C4001-10C1 is a 4Mbit (512K x 8) parallel EPROM manufactured by STMicroelectronics, designed for applications requiring non-volatile memory storage with moderate-speed access. Operating within a 4.5V to 5.5V supply range, this device features a 100ns access time, making it suitable for embedded systems and legacy hardware requiring reliable data retention. The memory is organized in a parallel interface format, ensuring straightforward integration with microcontrollers and processors. Housed in a 32-pin PLCC (Plastic Leaded Chip Carrier) package, it is surface-mountable, adhering to RoHS3 compliance and REACH unaffected standards. Though marked as obsolete, it remains relevant for maintenance and repair of older electronic systems.

M27C4001-10C1 Features

• Memory Capacity: 4Mbit (512K x 8) organization for flexible data storage.
• High Reliability: EPROM technology ensures long-term data retention without power.
• Fast Access Time: 100ns read speed, balancing performance and power efficiency.
• Wide Voltage Range: Operates at 4.5V–5.5V, compatible with standard 5V systems.
• Surface-Mount Design: 32-PLCC package saves board space and simplifies assembly.
• Industrial Compliance: RoHS3 compliant and REACH unaffected, meeting environmental regulations.
• Extended Temperature Range: Operates from 0°C to 70°C, suitable for commercial applications.

M27C4001-10C1 Applications

• Legacy Systems: Ideal for repairing or upgrading older industrial control systems, medical devices, and automotive electronics.
• Embedded Storage: Used in firmware storage for microcontrollers, gaming consoles, and communication equipment.
• Data Logging: Suitable for applications requiring non-volatile memory with moderate write cycles.
• Prototyping: Useful for developers working with vintage or niche hardware requiring parallel EPROMs.

Conclusion of M27C4001-10C1

The M27C4001-10C1 is a robust, albeit obsolete, 4Mbit parallel EPROM offering reliable performance for legacy and embedded systems. Its 100ns access time, 5V compatibility, and RoHS3 compliance make it a practical choice for maintenance, repairs, and niche applications. While newer technologies like Flash memory dominate, this EPROM remains valuable for specific use cases requiring durable, non-volatile storage with straightforward interfacing. Engineers working with older hardware will find it a dependable solution for preserving system functionality.