24C64 Serial EEPROM SMD 64Kbit I2C SOIC-8

Description

Pin Configuration Pin Number Pin Type Pin Description Direction 1 A0 Chip Enable Input 2 A1 Chip Enable Input 3 A2 Chip Enable Input 4 VSS Ground – 5 SDA Serial Data I/O 6 SCL Serial Clock Input 7 WC Write Clock Input 8 VCC Voltage Input – Features Low-voltage and standard-voltage operation _VCC = 1.7V to 5.5V Internally organized as 8,192 x 8 (64K) I2C-compatible (2-Wire) serial interface Schmitt Trigger, filtered inputs for noise suppression Bidirectional data transfer protocol 400kHz (1.7V) and 1MHz (2.5V, 2.7V, 5.0V) compatibility Write Protect pin for hardware protection 32-byte Page Write mode _Partial Page Writes allowed Self-timed Write cycle (5ms max) High reliability _Endurance: 1,000,000 write cycles _Data retention: 100 years Connecting 24C64 EEPROM IC to a Microcontroller/Microprocessor Unit The EEPROM IC can be easily connected to an MCU/MPU. The diagram below can be referred to as the pinout and the connections of 24C64 to an MCU/MPU. The 24C64 communicates via the I2C bus, so the SDA and the SCL pins are connected to the Data (I2C SDA) and clock(I2C SCK) line pin of the MCU/MPU, respectively. The SCA and SDA pins on the device are open rails so to make it work as normal pins you can also connect the pins to a pull-up resistor of 4.7K ohm and connect it to the VCC and then connect to your MCU. The 3 pins A0, A1, and A2 form the address, so can be put to the ground. The WP/WC pin can be pulled down to the ground and the VCC and GND terminal of the 24C64 IC is to be connected to the VCC and Ground terminal of the MCU/MPU to power up the IC. Note: You can connect the A0, A1, and A2 pins to either VCC or Ground. These 3 pins decide the logic of the slave device. If you connect them to the ground, the logic is 0 and when you connect it to VCC the logic becomes 1. Applications Here are some of the applications of 24C64 EEPROM IC. Remote keyless systems Additional memory device Electronic appliances 24C64 Datasheet

From the supplier's page.