24AA02T-IOT device package

24AA02T-IOT schematic symbol

In the last few decades, the electronics and communication technology has seen astonishing growth and advancement. From rudimentary analog devices of the 1980s to the smart digital devices of today, memory chips have always been a crucial part of the electronic circuits. No digital computing system can function without these memory chips. There are different types and categories of memory chips used in the electronic circuits. One of the most widely used memory type is the EEPROM (Electrically Erasable Programmable Read Only Memory). The EEPROM memory chips are very widely used in computers and reprogrammable embedded systems. They are sometimes also known as flash memory. The EEPROMs use serial interfaces like SPI and I²C for reading/writing of data. Most of the modern microcontrollers and SOCs have EEPROM built into the same device package. The option of erasing and rewriting the EEPROM flash memory makes them very attractive for circuit designers.

Table of Contents

What is 24AA02T-I/OT？

The 24AA02T-I/OT is a 2kB EEPROM from MICROCHIP. The device organization consists of 256 x 8 bit memory blocks with a 2-wire serial interface. The low voltage design of this memory ensures low power consumption. The device exhibits a standby current of 1uA and active current of 1mA. The device also features page write capability up to 8 bytes of data. I2C serial interface can be used for the device communication and configuration. The device inputs also feature Schmitt triggers for noise suppression. This device is particularly suitable for automotive applications due to AEC-Q100 qualification.

Pin Configuration

The pin configuration of the 24AA02T-I/OT EEPROM is given in the table below:

Pin name	Pin description
Vcc	Input supply voltage
Vss	Ground pin
SCL	Serial clock pin
SDA	Serial data pin
WP	Wire protect pin

Features

Single supply operation as low as 1.7V
Low power CMOS technology
Read current of 1uA
Standby current of 1mA
2 wire serial interface
I2C compatible
Schmitt trigger inputs for noise reduction
100 kHz, 400 kHz and 1 MHz compatible
5ms page write time
8-byte page write buffer
Hardware write protect
ESD protection > 4000V
1000,000+ erase/write cycles
200+ years data retention
Industrial temperature range
AEC-Q100 qualified

Applications

The applications of 24AA02T-I/OT EEPROM memory are provided as following:

Automotive electronics
Audio/Video systems
Image processing systems
Data storage applications
Telecom equipment
Consumer electronics
Embedded systems

Specifications

The major technical specifications of the 24AA02T-I/OT EEPROM chip are provided as following:

Package: SOT-23/SC-70
Input voltage range: 1.7 to 6.5V
Page write buffer: 8 bytes
Active read current: 1mA
Standby current: 1uA
Program/erase cycles: 1 million
Data retention: 200 years

How 24AA02T-I/OT work?

The 24AA02T-I/OT is a serial EEPROM manufactured by MICROCHIP. This EEPROM supports two wire serial interface and I2C protocol for read/write configuration. This memory chip can be used in a large number of applications and is particularly suited for automotive applications due to AEC-Q100 qualification. The EEPROM can be interfaced to a microcontroller or a microprocessor using I2C protocol.

A typical application circuit is provided in the following figure:

24AA02T-IOT application circuit

24AA02T-I/OT Related Products Prices

Parts	Mfr.	Description	Stock	Prices
24AA02T-I/OT	Microchip Technology	IC EEPROM 2KBIT 400KHZ SOT23-5	56948	$0.124 Lowest
24AA01T-I/OT	Microchip Technology	IC EEPROM 1KBIT 400KHZ SOT23-5	10	$0.201 Lowest
24AA02T-I/MS	Microchip Technology	2K I2C™ Serial EEPROM	1490	RFQ