AT27C040-90JU

The AT27C040-90JU is a 4-megabit (512KB x 8) EEPROM (Electrically Erasable Programmable Read-Only Memory) produced by Microchip Technology. It operates on a supply voltage of 5V and is available in a 32-pin plastic DIP or surface-mount package. This chip is primarily used for code storage in embedded systems, allowing for easy data reprogramming without needing to remove the chip from the circuit.
Key features include a fast access time of 90 ns, which ensures quick read operations, and a flexible programming method that supports both byte and word programming. The AT27C040-90JU also has a built-inErase function, enabling users to erase entire memory blocks prior to reprogramming. With its reliable performance and ease of use, it is suitable for a variety of applications, including consumer electronics, automotive systems, and industrial controls. Its compatibility with standard EEPROM programming techniques makes it a popular choice for developers looking to integrate non-volatile memory into their designs.

The AT27C040-90JU is a 4 Mbit (512K x 8) EEPROM. Equivalent products include the Intel 28F040, ST M27C040, Microchip 27C040, and Winbond W27C040. Ensure compatibility with voltage, pin configuration, and programming methods when selecting a substitute.

The AT27C040-90JU is a 4-megabit (512KB x 8) CMOS EPROM (Erasable Programmable Read-Only Memory) from Microchip Technology. Key features include:
1. Memory Size: 4 Mb (512 K x 8 bits).
2. Access Time: 90 ns, allowing for fast data retrieval.
3. Programming Method: Uses UV light for erasure and can be programmed in-system or using a programmer.
4. Voltage: Operates at a supply voltage of 5V, with a typical programming voltage of around 12.5V.
5. Data Retention: Guaranteed data retention of at least 10 years.
6. Pin Configuration: 32-pin DIP (Dual In-line Package) for easy integration.
7. Low Power Consumption: Designed for low power operation.
8. Compatibility: Compatible with standard EPROM programmers.
The AT27C040-90JU is suitable for applications requiring non-volatile data storage, like firmware storage in embedded systems.

The manufacturer of the AT27C040-90JU is Atmel Corporation, which is now part of Microchip Technology Inc. Atmel was known for designing and manufacturing a variety of semiconductor products, including microcontrollers, flash memory, and other integrated circuits. The AT27C040-90JU is a 4 megabit (512 KB) EEPROM, specifically an ultraviolet erasable programmable read-only memory (EPROM).
Microchip Technology Inc., the parent company, is a leading supplier of microcontroller and analog semiconductors. Founded in 1989, Microchip specializes in embedded control solutions, serving various industries such as automotive, industrial, consumer, and aerospace. The company emphasizes innovation and support provided to developers and engineers, focusing on reliability, performance, and efficiency in their products. With a robust portfolio that includes microcontrollers, digital signal controllers, and associated development tools, Microchip plays a significant role in the global semiconductor market.

The AT27C040-90JU is a 4 Mbit (512 K x 8) EEPROM (Electrically Erasable Programmable Read-Only Memory) primarily used in various applications such as embedded systems for firmware storage, programmable logic devices, and data retention in consumer electronics. It is commonly found in telecommunications equipment, automotive electronics, industrial controllers, and medical devices. The chip’s capability for electronic erasure and reprogramming makes it suitable for applications requiring frequent updates, like BIOS in computers and microcontroller-based systems. Additionally, it serves in multimedia devices for storing configuration settings and user preferences.

The AT27C040-90JU is packaged in a 32-pin DIP (Dual In-line Package) format.