DEVMO MCP23017 I2C Interface 16bit I/O Extension Module Pin Board IIC to GIPO Convert Compatible with Ar-duino IIC Input and Output Expansion Board
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- Product description Parameters:Operating voltage:3.0V-5.5VDrive chip:MCP23017Number of IO: 16 (input, output, interruption)Drive power supply: 25mA112C frequency: 100KHz, 400KHz, 1..7MHzworking temperature: -40 Celsius -125 CelsiusChip level: Industrial gradeParallel multiple: Up to 8Driver: 51 and Ar-duinoModule size: 65mm*19mmPin descriptionVCC: Power source input (3.0V-5.5V)GND: Power negative electrode (0V)SCL: 12C clock line (SCL connecting single chip IO pin or MCU 12C interface)SDA: 12C data line (SDA connecting single chip IO pin or MCU 12C interface)RST: Chip reduction (Low level effective, connecting MCU IO pin or unconnected)ITA: GPIOA port interrupt output (Connect MCU IO pin, without connection when interruption)ITB: GPIOB port interrupt output (Connect MCU IO pin, without connection when interruption)Package list:STC15W408AS MSP 1PieceDouble row straight pin 2*7Double row Bending pin 2*7Single row straight pin 1*20Single row Bending pin 1*20
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★This module is flexible in configuration and strong in driving ability. There are many parallel connections. ★Each IO can be arbitrarily configured as input or output, and a pull up resistor can be set, and the interrupt function can be enabled for the IO configured as input. ★The IO interface has a strong driving capacity, and the current and current can reach 25mA. ★MCP23017 is a high-speed IIC interface. It supports the IIC frequency of 100KHz, 400KHz and 1.7MHz. ★The chip has 3 address pins, which can be set up for 8 different addresses. So 8 modules can be connected through two IIC buses to achieve up to 128 IO extensions.