X28HC256JI-90R5697

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Introduction

The X28HC256JI-90R5697 is a 256 Kbit serial EEPROM, which operates in both 3-volt and 5-volt environment. The device uses I2C serial interface protocol communication. It provides 8192 8-bit words of non-volatile storage which can be read or written anytime. The device supports page write/read operation which can reduce the communication time and number of external components. With an extremely low power consumption and superior temperature range, the X28HC256JI-90R5697 is a perfect fit for small form factor applications that require added speed and low-power operation.

Memory Selection Guide

The X28HC256JI-90R5697 memory can be used in various applications. It is suitable for applications with limited space, such as PDAs, smart phones, set-top boxes, automotive applications and home networking applications.

Applications

The X28HC256JI-90R5697 is a versatile device and is suitable for a wide range of applications. Some of the applications where the device may be used include:

• Automatic meter reading
• Vehicle tracking
• Wireless sensor networks
• Personal identification systems
• Home monitoring systems
• Security systems

Working Principle

At the heart of the X28HC256JI-90R5697 is a serial EEPROM array. The device includes an 8-bit data bus, a 2-bit address bus, an I2C serial interface, a 2x PowerFail power detector and a 8-bit general purpose latch. The device also includes three general purpose I/O pins that may be used as interrupt, chip enable, write protect and power fail output pins. The device has a write enable latch, which allows the device to use a dedicated Ready/Busy signal for write operations.

When the device is powered up, the array will be initialized and the data stored in the array will be retained. The array may be read or written on a byte wise basis, or in page mode, where up to 16 bytes of data may be written or read in one operation. Page mode operations provide faster access to the data stored in the array. The data in the array is organized in 8192 words of 8 bits each, and may be accessed by byte wise and page read/write operations.

The I2C serial interface protocol allow the device to be connected to a microcontroller, digital signal processor or direct memory access controller. The device is capable of supporting Standard, Fast and High Speed modes, allowing high speed communications over the I2C bus.

The X28HC256JI-90R5697 also has a low power consumption and operates over a wide temperature range, making it ideal for applications requiring reliable storage in harsh environments. The device also offers a wide voltage range and supports write protect and interrupt pins.

Conclusion

The X28HC256JI-90R5697 is a highly versatile serial EEPROM with a wide range of applications. It offers 8192 bits of non-volatile storage, supports page write/read operations and has an I2C serial interface protocol for communication. It offers excellent performance with an extremely low power consumption and a wide temperature range. The device is an ideal choice for small form factor applications that require speed, low-power operation and high reliability.

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