AT28C64B-15JU

The AT28C64B-15JU is an 8-kilobyte, 64-kilobit parallel EEPROM (Electrically Erasable Programmable Read-Only Memory) from Microchip Technology. It features a wide operating voltage range of 4.5V to 5.5V and a fast access time of 150 nanoseconds, which makes it suitable for high-speed applications. The device offers byte-level write capability, allowing for the independent alteration of data without needing to erase entire blocks. This EEPROM also includes built-in data protection mechanisms such as hardware data protection and software data protection to preserve data integrity during writes and prevent accidental data corruption.
The AT28C64B-15JU supports a minimum of 100,000 write cycles per byte and data retention for over 10 years, ensuring long-term reliability. It is packaged in a standard 28-lead, 300-mil plastic Dual Inline Package (DIP) or JEDEC-approved PLCC package. The device is commonly used in applications requiring non-volatile memory storage, such as embedded systems, industrial controls, and consumer electronics. Its ease of programming and reliability make it a popular choice for developers needing robust, rewritable memory solutions.

The AT28C64B-15JU is a 64Kb EEPROM. Equivalent products include:
1. Microchip 28C64.
2. STMicroelectronics M28C64.
3. Xicor X28C64.
4. Catalyst CAT28C64.
These chips typically match on key specifications like memory size, voltage, and package type, but always verify specific requirements such as speed grades and package dimensions to ensure compatibility with your application.

The AT28C64B-15JU is a 64K (8K x 8) parallel EEPROM with several key features:
1. Fast Access Time: Offers a read access time of 150 ns.
2. Endurance: Supports up to 100,000 write cycles per byte.
3. Data Retention: Provides data retention for a minimum of 10 years.
4. Programming: Features byte and page write capability. Page write allows up to 64 bytes to be written at a time.
5. Low Power Consumption: Operates with low power requirements, suitable for battery-powered devices.
6. Data Protection: Includes hardware and software data protection mechanisms to prevent unintended writes.
7. Compatibility: Pin and software compatible with industry-standard 28C64 devices.
8. Packaging: Available in a 28-pin Dual In-Line Package (DIP) form.
9. Temperature Range: Operates within the industrial temperature range (-40°C to +85°C).
These features make it suitable for a variety of applications requiring non-volatile memory storage with moderate speed and reliability.

The AT28C64B-15JU is a 64K (8K x 8) EEPROM with a total of 28 pins. Here’s a brief overview of its pin functions:
1. A0-A12 (Pins 1-13, 15, 16): Address inputs used to select one of the 8,192 bytes of memory.
2. DQ0-DQ7 (Pins 17-19, 21-23, 26, 27): Data inputs/outputs, serving as a bidirectional data bus.
3. CE (Pin 20): Chip Enable, active low, used to activate the device.
4. OE (Pin 22): Output Enable, active low, used to control the output buffer.
5. WE (Pin 27): Write Enable, active low, used to enable writing to the memory.
6. VCC (Pin 28): Power supply pin, typically +5V for the device.
7. GND (Pin 14): Ground reference voltage.
These pins allow the device to be interfaced with a microcontroller or other digital systems for data storage and retrieval, offering non-volatile memory retention.

The AT28C64B-15JU is manufactured by Microchip Technology Inc. This company is a leading provider of microcontroller, mixed-signal, analog, and Flash-IP solutions. Microchip Technology specializes in producing a wide range of semiconductor products used in various electronic devices and systems. Their offerings include microcontrollers, memory products, and analog devices, serving industries such as automotive, industrial, consumer electronics, and communication.

The AT28C64B-15JU is a 64K (8K x 8) EEPROM and is commonly used in applications requiring non-volatile memory storage. Its application areas include embedded systems, where it's utilized for storing firmware or configuration data, industrial control systems for retaining settings and parameters, and in consumer electronics for features like user preferences and system parameters. It's also used in telecommunications for data logging and protocol storage, in automotive systems for diagnostic and control data retention, and in educational tools for electronics training kits. Its ability to be electrically erased and reprogrammed makes it ideal for applications where data must be updated periodically without losing information.

The AT28C64B-15JU is a 64Kb EEPROM (Electrically Erasable Programmable Read-Only Memory) by Microchip Technology, packaged in a 28-pin PLCC (Plastic Leaded Chip Carrier). This package type is suitable for surface mounting on PCBs, offering compactness and durability for reliable performance in various electronic applications.