STMicroelectronics

M27C1001-12F6

M27C1001-12F6 Description

The M27C1001-12F6 is a 1Mbit (128K x 8) parallel EPROM manufactured by STMicroelectronics, designed for high-reliability applications requiring non-volatile memory storage. Housed in a 32-CDIP (Ceramic Dual In-line Package), this through-hole-mount device operates within a 4.5V to 5.5V supply range and features a 120ns access time, making it suitable for systems demanding moderate-speed data retrieval. Its parallel interface simplifies integration with legacy microprocessors and embedded systems. Although marked as obsolete, it remains relevant for maintenance, repair, and legacy system support due to its robust design and compliance with ROHS3 and REACH environmental standards.

M27C1001-12F6 Features

• Memory Organization: 128K x 8 configuration, offering flexible byte-wide addressing.
• High Reliability: Ceramic package ensures durability in harsh environments.
• Wide Voltage Range: Operates at 4.5V–5.5V, compatible with standard TTL logic levels.
• Fast Access Time: 120ns performance balances speed and power efficiency.
• EPROM Technology: UV-erasable and reprogrammable for prototyping and firmware updates.
• Compliance: ROHS3 and REACH Unaffected, adhering to environmental regulations.
• Unlimited MSL Rating: Moisture Sensitivity Level 1 (Unlimited) ensures long shelf life.

M27C1001-12F6 Applications

• Legacy Industrial Systems: Ideal for factory automation equipment with EPROM-based firmware.
• Retro Computing: Used in vintage computer restorations and hobbyist projects.
• Embedded Control: Suitable for microcontroller-based systems requiring stable, non-volatile storage.
• Telecommunications: Backup memory for older telecom infrastructure.
• Military/Aerospace: Obsolete but still sourced for long-lifecycle hardware due to ceramic packaging.

Conclusion of M27C1001-12F6

The M27C1001-12F6 is a dependable EPROM solution for legacy and niche applications, combining 5V compatibility, moderate speed, and environmental resilience. While newer technologies have superseded it, its reprogrammability and through-hole design make it invaluable for maintaining older systems. Engineers seeking a cost-effective, compliant memory IC for retrofits or repairs will find this device a practical choice.