Characteristic:

1, Onboard 8P chip holder, install AT24C256 chip.
2, pin power supply, on-board power display.
3, Onboard I2C communication requires pull-up resistor.
4, All pins are drawn and marked, enter the address and write protection pin can be directly jumper settings.
5, PCB board size: 36.5*12mm.
6, 32k x 8 storage units can be formed internally.
7, 2-wire serial interface.
8, Schmitt trigger, filter input to suppress noise.
9, two-way data transfer protocol.
10,Hardware write protection pin and software data protection function Has a 64-byte page write mode.

The chip has 3 working voltages:
5.0V(VCC=4.5-5.5V)
2.7V(Cc=2.7V-5.5V)
1.8V(VC=1.8-3.6V)

A0、A1: address selection input. In the serial bus structure, there are four AT24C256IC can beconnected. Use A0 and A1 to distinguish each IC. A1 is 0 when floating.

SCL: Serial Clock lnput. The rising edge writes the data on SDA into the memory, and the falling edge reads the data from the memory and sends it to SDA.

SDA: bidirectional serial data input and output port. For data exchange between memory and microcontroller.

WP: Write Protect lnput. When this pin is connected to ground, write operations areallowed; when connected to VCC, all write memory operations are disabled. lf notconnected, the chip is internally pulled down to ground.

VCC: Power
GND: Ground
NC: Empty

Package included:
3 x AT24C256 I2C interface EEPROM memory module