桂花蒸

MAXREFDES1265: Simple keyboard interface using the MAX32625PICO and MAX7360

MAXREFDES1265: Simple Keypad Interface Using the MAX32625PICO and MAX7360

Overview

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.

Design Files

Documentation

MAXREFDES1265 - Simple Keypad Interface Using the MAX32625PICO and MAX7360

All reference designs on this site are sourced from major semiconductor manufacturers or collected online for learning and research. The copyright belongs to the semiconductor manufacturer or the original author. If you believe that the reference design of this site infringes upon your relevant rights and interests, please send us a rights notice. As a neutral platform service provider, we will take measures to delete the relevant content in accordance with relevant laws after receiving the relevant notice from the rights holder. Please send relevant notifications to email: bbs_service@eeworld.com.cn.

It is your responsibility to test the circuit yourself and determine its suitability for you. EEWorld will not be liable for direct, indirect, special, incidental, consequential or punitive damages arising from any cause or anything connected to any reference design used.

Hot

Technical Resources More

Search Datasheet?

Supported by EEWorld Datasheet

Technical Videos More

Forum More

Update:2025-06-20 15:30:57

[Hua Diao Experience] 19 Hezhou ESP32_C3 lights up WS2812B hard screen
I have a 64-bit and a 256-bit WS2812B hard screen, and now I try to light them up.
Rules for drawing circuit diagrams
[color=#666666][font=Helvetica, Tahoma, Arial, sans-serif][size=12px]Circuit diagram drawing rules. In order to enable the viewer to correctly and conveniently understand the entire content of the cir
【CN0179】Low Noise 12 GHz Microwave Fractional-N Phase-Locked Loop (PLL) Using Active Loop Filter and RF
Circuit Functionality and Benefits4 mA to 20 mA current loop transmitter for communication between process control systems and their actuators. In addition to being cost-effective, this circuit is the
New Method for RF Parameter Testing (Part 2)
3. Application example: Keithley has successfully applied the design method introduced above to its latest S600DC/RF APT system for process monitoring. Key performance indicators include: Based on Kei
MMU address mapping
void mem_mapping_linear(void) { unsigned long descriptor_index, section_base, sdram_base, sdram_size; sdram_base=0x30000000; sdram_size=0x 4000000; for (section _base= sdram_base,descriptor_index = se
Is there any tool in EVC that can monitor the number of GDI objects on the device?
Is there any tool in EVC that can monitor the number of GDI objects on the device?

Datasheet More

Circuits More