The CMS32F737 series is a high-performance touch MCU based on the Arm Cortex® M0+ core, supporting a maximum clock speed of 64MHz. It is equipped with a maximum of 128KB Flash ROM, 16KB SRAM, 3.5KB Data Flash, up to 45 GPIOs, and various standard interfaces including UART, I2C and SPI. It features up to 43 channels for touch key detection and includes an LCD and high-current LED driver module. Designed to industrial-grade standards, it operates within a temperature range of -40°C to 105°C. Available in LQFP44and LQFP48packages.

The CMS32F737 series integrates rich peripheral modules, offering excellent reliability, high touch sensitivity, and large LED driver current. It is widely used in home appliances such as air conditioners, refrigerators, washing machines, water heaters, dishwashers, and other touch-sensitive applications.

> ARM® 32-bit Cortex®-M0+ CPU

> Operating voltage: 2.5V-5.5V @64MHz

> Operating temperature: -40℃ - 105℃

> Up to 128KB flash memory, shared for program and data storage

> 3.5KB dedicated data flash memory

> 16KB SRAM memory

> Up to 43 high-sensitivity touch (SICC) keys available, high sensitivity with low external radiation

> Strong touch waterproof and overflow detection capability

> A/D conversion: up to 60 channels of high-precision 12-bit ADC, conversion rate 1.2Msps

> D/A conversion: 8-bit precision, supports 1 channel

> Internal high-speed oscillator: 64MHz and internal low-speed oscillator: 32KHz

> 8-channel enhanced DMA

> 6-channel EPWM

> 32-bit hardware division unit

> Supports LED matrix driver up to 8COM x 22SEG ~ 4COM x 26SEG

> Supports LCD matrix driver up to 8COM x 30SEG ~ 4COM x 34SEG

> Up to 45 GPIO pins, supporting digital function remapping

> 16-bit timer: 8 channels, supports PWM output

> 5 universal serial communication units: supports 3-wire serial (SSPI), UART, simplified I2C functions, up to 6 UART channels

> Standard serial interface IICA: 1 channel

> Serial wire debugger (SWD)