25AA020A/WF16K

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Memory

The 25AA020A/WF16K is a non-volatile memory serial EEPROM that utilizes the industry-standard two-wire interface, which enables designers to develop systems with improve reliability and minimal wiring. The device is organized as one block of 512 x 16-bit words, with an operating temperature range of -40°C to +125°C. It also features an improved low voltage write cycle, which enables writing at voltages as low as 2.5V.

The architecture of the 25AA020A/WF16K consists of a single 256-byte page write buffer allowing data to be written one byte at a time. The device is offered in 8 pin packages and is available in a variety of package sizes and densities including 1Kbit, 2Kbit, and 4Kbit. The device is ideal for implementation in automotive, industrial, medical, and commercial applications.

The 25AA020A/WF16K operates using the two-wire serial interface compatible with the I2C bus protocol as described in the I2C bus specification version 3.0. Data is written and read through the two-wire serial interface with minimal external components. The device supports up to 400kHz data transfer rates, and can be accessed with either the two-wire or three-wire interface.

The 25AA020A/WF16K device uses an internally generated 12V program enable voltage to write data bytes into the EEPROM. The write operation can be initiated either by the microcontroller or automatically by the EEPROM when the Busy bit in the device status register is set to 1. A write protect pin is also available that prevents accidental write operations to the EEPROM.

The 25AA020A/WF16K also includes an 8-bit ECC (Error Checking and Correction) for data protection. The internal ECC allows a one-byte correction if a single bit error occurs in the data. It is also available in densities from 1K to 4K, allowing for a wide range of applications. The 25AA020A/WF16K is offered in a 8-pin SOIC package which is highly resistant to shock and vibration.

In summary, the 25AA020A/WF16K is a versatile and cost-effective serial EEPROM that can be used to store data in numerous applications. The device offers high reliability, low voltage write cycles, two-wire or three-wire interface, fast data transfer rate of up to 400kHz, and 8-bit ECC. The device is offered in 8 pin package sizes and densities ranging from 1Kbit, 2Kbit, and 4Kbit, making it an ideal choice for automotive, industrial, medical, or commercial applications.

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