3PCS EEPROM Memory Module AT24C256 Chip I2C Serial Interface Data Storage Memory Module Onboard 8P Chip Holder with Onboard LED Indicator
Onboard 8P chip carrier, supports AT24C256 series chips; pin power supply, on-board power display; Built-in pull-up resistor required for I2C communication; All pins lead out and are marked, the input and the direct jumper settings for the write protect pin; PCB size: x 12 x 12 mm (L x W x H) 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 and write protection pin can be directly jumper settings. 5, PCB board size: *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:
A0、A1: 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: offerirectional 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
