Manufacturer Part Number
M27C256B-15B1
Manufacturer
STMicroelectronics
Introduction
The M27C256B-15B1 is a non-volatile EPROM memory chip designed for storing code that does not need to be modified regularly. As an OTP (One Time Programmable) device, it is suitable for permanent data storage.
Product Features and Performance
Non-Volatile EPROM Technology
One-Time Programmable (OTP) for Permanent Data Retention
Memory Size of 256Kbit
Memory Organization of 32K x 8
Parallel Memory Interface for Easy Integration
Access Time of 150 ns suitable for medium-speed applications
Through Hole Mounting for Standard PCB Design
Product Advantages
Reliable Data Storage over Product Lifecycle
Well-suited for legacy systems that require parallel memory interfaces
High-density 256Kbit memory for sufficient data storage
Key Technical Parameters
Memory Size: 256Kbit
Organization: 32K x 8
Access Time: 150 ns
Voltage Supply: 4.5V ~ 5.5V
Operating Temperature Range: 0°C ~ 70°C
Quality and Safety Features
Robust Through Hole 28-DIP Package
Operating temperature range ensures reliability in industrial temperature environments
Compatibility
Suitable for older generation systems with parallel memory requirements
Designed to interface with a wide range of standard microcontrollers and systems
Application Areas
Legacy Industrial Systems
Embedded Systems
Automotive Applications
Telecommunications Equipment
Computer Systems and Peripherals
Product Lifecycle
Obsolete - No longer in production or recommended for new designs
Potential need to seek replacements or upgrades for newer systems
Several Key Reasons to Choose This Product
Ideal for applications requiring write-once, read-many memory solutions
Well-established and proven EPROM technology
STMicroelectronics quality and reliability
256Kbits of storage meets requirements for various code and data storage applications
The DIP package allows for easy replacement and maintenance in legacy systems
