M27C4001-12F1

The M27C4001-12F1 is an ultraviolet erasable and electrically programmable read-only memory (EPROM). It features a storage capacity of 4 megabits, organized as 512K x 8 bits, making it suitable for applications requiring non-volatile memory. This specific model operates with a 12V programming voltage and has an access time of 120 nanoseconds, which refers to the speed at which data can be read from the memory.
The M27C4001-12F1 is compatible with the JEDEC standard pinout, allowing for easy integration into existing systems. It requires a power supply voltage of 5V during normal operation. Being an EPROM, it is erasable by exposing it to a strong ultraviolet light, which allows for reprogramming the memory, although this process erases the entire chip.
The device is commonly used in applications including firmware storage, microcontroller programming, and other embedded systems where data retention is crucial. Its reliability and ease of programming make it a suitable choice for various industrial and consumer electronics applications.

The M27C4001-12F1 is a 4 Mb UV EPROM. Equivalent products include:
1. AM27C040 by AMD
2. AT27C040 by Atmel
3. H27C4000 by Hynix
4. TMS27C040 by Texas Instruments
5. MBM27C4000 by Fujitsu
All these are 4 Mb EPROMs, but it's crucial to verify specific parameters and pin compatibility for substituting in your application.

The M27C4001-12F1 is a 4-Megabit (512K x 8) UV EPROM, which features the following:
1. Technology: It is based on CMOS technology, providing low power consumption with a standby current of 100 µA.
2. Access Time: The EPROM offers a fast access time of 120 ns, allowing for quick data retrieval.
3. Memory Organization: It is organized as 512K x 8 bits.
4. Programming: The device requires a 12.75V programming voltage and supports byte-wide programming.
5. Data Retention: It guarantees data retention of over 10 years, ensuring reliable data storage.
6. Operating Temperature: The M27C4001-12F1 operates within a temperature range of -40°C to +85°C, suitable for various environments.
7. Package: It typically comes in a 32-pin DIP package.
8. UV Erasable: The device is erasable using UV light, allowing for reprogramming.
These features make the M27C4001-12F1 suitable for applications in embedded systems, where non-volatile storage and robust data retention are required.

The M27C4001-12F1 is a 4 Megabit (512K x 8) EPROM (Erasable Programmable Read-Only Memory) with 32 pins. Its primary function is to store permanent data that can be electrically erased and reprogrammed. Here’s a brief overview of its pin functions:
- Power and Ground: VCC (pin 32) for power input and VSS (pin 16) for ground.
- Address Inputs (A0-A18): Pins 1-15 and 24-28, which are used to select the memory location within the EPROM.
- Data Outputs (Q0-Q7): Pins 11-13, 15, 17-19, 21 for reading data stored at the selected address.
- Output Enable (G): Pin 22, which enables data output when active.
- Chip Enable (E): Pin 20, which activates the device when low.
- Programming Voltage (VPP): Pin 1, used during programming of the EPROM.
The M27C4001 provides non-volatile storage, meaning it retains data without power. It’s commonly used in applications requiring stable, long-term storage, such as firmware and microcontroller programs.

The M27C4001-12F1 is manufactured by STMicroelectronics. STMicroelectronics is a global semiconductor company that designs, develops, manufactures, and markets a wide range of semiconductor products. It serves various industries, including automotive, industrial, personal electronics, and communications equipment. The company is known for its expertise in microcontrollers, sensors, power management devices, and other integrated circuits, making it a key player in the electronics industry. STMicroelectronics is headquartered in Geneva, Switzerland, and operates globally, providing innovative solutions and technologies to meet the needs of its diverse customer base.

The M27C4001-12F1 is a UV EPROM memory chip used primarily in applications requiring non-volatile storage with the ability to be erased and reprogrammed. Common application areas include:
1. Embedded Systems: Used in microcontroller-based systems for firmware storage.
2. Industrial Equipment: Suitable for control systems and automation equipment.
3. Consumer Electronics: Utilized in devices where permanent firmware storage is needed.
4. Telecommunications: Employed in the storage of configuration data and operational software.
5. Automotive Systems: Used in ECUs for storing software and calibration data.
These chips are ideal for applications needing data retention over multiple power cycles without frequent updates.

The M27C4001-12F1 is a UV EPROM with a 32-pin PLCC (Plastic Leaded Chip Carrier) package type.