M27C256B-12F6

The M27C256B-12F6 is a CMOS EPROM (Erasable Programmable Read-Only Memory) device with a storage capacity of 256 Kilobits, organized as 32,768 words by 8 bits. It is designed for use in a variety of applications requiring non-volatile, reprogrammable storage. The "-12F6" suffix indicates specific speed and packaging details: it operates with a 120 ns access time and is packaged in a 28-pin dual in-line package (DIP).
Key features include:
1. Low Power Consumption: Thanks to its CMOS technology, it offers efficient power usage.
2. High Speed: The 120 ns access time allows for fast data retrieval.
3. Reliability: It is designed to retain data for up to 40 years without power.
4. Reprogrammability: Data can be erased by exposure to UV light, making it reusable for new data storage.
The M27C256B-12F6 is suitable for use in embedded systems, microcontroller-based designs, and legacy hardware requiring non-volatile storage. Its robust design and reliable performance make it a practical choice for various electronic applications.

The M27C256B-12F6 is a 256Kb (32K x 8) UV EPROM chip. Equivalent products include other 256Kb UV EPROMs like the AT27C256R from Atmel, the TMS27C256 from Texas Instruments, and the NMC27C256 from National Semiconductor. These chips generally have similar specifications such as storage capacity, pin configuration, and access time, but it's important to verify compatibility for specific applications.

The M27C256B-12F6 is a 256-Kbit ultraviolet erasable programmable read-only memory (EPROM). Key features include:
1. Memory Organization: 32K x 8 bits, providing a total of 256 kilobits of storage.
2. High-Speed Performance: Access time of 120 ns, allowing for fast data retrieval.
3. Programming Voltage: Requires a single 5V power supply for read operations and a 12.75V supply for programming.
4. Low Power Consumption: Optimized for minimal power usage during both active and standby modes.
5. Data Retention: Capable of retaining data for up to 20 years, ensuring long-term reliability.
6. Erase and Reprogram: Supports erasure through exposure to ultraviolet light, allowing for data to be rewritten.
7. Package Options: Available in various package types including PDIP, PLCC, and TSOP, making it versatile for different applications.
8. Reliability: Offers high endurance with a large number of program/erase cycles.
These features make the M27C256B-12F6 suitable for applications requiring durable and efficient non-volatile memory storage.

The M27C256B-12F6 is a 256 Kbit (32 Kbyte) UV EPROM with an access time of 120 ns. It features a 28-pin dual in-line package (DIP). Here is a brief overview of its pin functions:
1. VPP (Pin 1): Programming voltage input.
2. A0-A14 (Pins 2-10, 21, 23-25): Address inputs used to select one of the 32,768 memory locations.
3. Q0-Q7 (Pins 11-13, 15-17, 19, 20): Data output pins that present the data stored at the selected address.
4. GND (Pin 14): Ground.
5. E or Chip Enable (Pin 20): When low, allows the device to be active and enables reading of data.
6. VCC (Pin 28): Power supply voltage.
This chip is primarily used in applications that require non-volatile storage, where data needs to be retrieved after the power is turned off. The UV EPROM can be erased by exposing it to ultraviolet light, allowing for reprogramming.

The M27C256B-12F6 is manufactured by STMicroelectronics. STMicroelectronics is a global semiconductor company that designs, develops, manufactures, and markets a wide range of semiconductor products. The company serves various industries, including automotive, industrial, personal electronics, computer peripherals, and communications equipment. As one of the world's largest semiconductor companies, STMicroelectronics focuses on delivering innovative solutions and technologies to enhance the performance and efficiency of electronic products.

The M27C256B-12F6 is a 256Kb (32K x 8) UV EPROM, commonly used in applications requiring non-volatile memory storage. Key application areas include:
1. Embedded Systems: Storing firmware or program code in microcontrollers and microprocessors.
2. Consumer Electronics: Memory for devices needing reliable, permanent data storage.
3. Industrial Control Systems: Retaining configuration data and system parameters.
4. Networking Equipment: Boot code and configuration storage for routers and switches.
5. Automotive Electronics: Firmware storage in control units.
6. Communications: Storage for system software in telecommunication devices.
These applications benefit from the UV erasable and reprogrammable nature of the EPROM, allowing updates and modifications to stored data.

The M27C256B-12F6 is a UV EPROM (Erasable Programmable Read-Only Memory) device with a 256Kb storage capacity. The package type for this specific model is a 28-pin Dual In-line Package (DIP). The "12F6" part of the model number typically refers to specific speed and temperature range ratings, with "12" indicating a 120 ns access time.