MAXREFDES1265 是一款参考设计，展示了 MAX7360 和 MAX32625PICO，带有低成本、小尺寸键盘接口。MAX7360 I2C 接口外设允许微处理器和微控制器管理多达 64 个按键开关，并附加八个 LED 驱动器/GPIO（通用输入/输出），具有恒定电流、PWM（脉冲宽度调制）强度控制和旋转开关控制选项。MAX32625PICO 是一款基于 Arm® 内核的低功耗微控制器。它充当 MAX7360 的 I2C 主机，通过 USB 接口读取这些值并将其放在 PC 终端上。硬件规格MAXREFDES1265 具有用于连接键盘的行和列的引脚排列接头。每次按下按键时，微控制器都会通过 I2C 接口通过 MAX7360 读取值。微控制器同时将该值放到PC终端上。

The MAXREFDES1265 is a reference design showcasing the MAX7360 and MAX32625PICO with a low-cost, small-size keypad interface. The MAX7360 I2C-interfaced peripheral allows microprocessors and microcontrollers to manage up to 64 key switches with additional eight LED drivers/GPIOs (general-purpose input/output) featuring constant current, PWM (pulse-width modulation) intensity control, and rotary switch control options. The MAX32625PICO is an Arm®-core-based, low-power microcontroller. It acts as the I2C master for the MAX7360 to read and put these values on the PC terminal through the USB interface.
Hardware Specification

The MAXREFDES1265 has pinout headers for rows and columns to connect the keypad. The microcontroller reads the value through the MAX7360 with the I2C interface every time a key is pressed. The microcontroller simulta-neously puts the value on the terminal of the PC.