### Product Overview
CIU32F032K8U7TR is a high-cost-performance general-purpose 32-bit microcontroller from Huada Electronics (HED), built on ARM Cortex-M0+ core running up to 48MHz , packaged in compact QFN32 form factor with tape & reel delivery. Equipped with 64KB Flash program memory and 6KB SRAM, it supports wide 1.8V~5.5V power supply and industrial temperature range of -40℃ to +105℃. This MCU integrates abundant hardware resources including 28 multi-functional GPIOs (13 high-drive pins up to 65mA), multi-channel PWM timers, dual high-speed SPI, LPUART wake-up port, 12-bit high-speed SAR ADC, dual voltage comparators and hardware CRC module. With built-in RTC calendar, PVD power detection and 96-bit unique chip ID, it serves as a mature domestic replacement for imported MCUs, effectively reducing BOM cost for consumer electronics, motor control, lighting and battery management projects.
### Core Key Specifications
1. Core & Memory
- ARM Cortex-M0+ 32-bit CPU, max 48MHz internal RC oscillator (±2% full temperature precision)
- Memory: 64KB Flash + 6KB SRAM, support IAP online firmware upgrade
- Built-in hardware CRC-16, 96-bit unique chip ID, standard SWD debug interface
- Multiple low-power modes: Sleep / Stop / Deep Stop with SRAM retention
2. Timers & High-Drive IO
- 6 groups of multi-function timers: Advanced dead-zone PWM timer, general timer, low-power LPTIM, RTC, IWDG watchdog, SysTick
- Up to 8 PWM channels for BLDC fan, pump and LED dimming control
- 28 GPIO pins total, 13 high-current drive IOs (65mA sink) directly driving relays & LEDs
- All GPIOs 5V tolerant, support external interrupt trigger
3. Communication & Analog Peripherals
- Communication Interfaces: 2×SPI (max 24Mbps), 2×UART, 1×LPUART (Stop mode wake-up), 1×1Mbps I2C, 3-channel independent DMA
- Analog Modules: 12-bit 1Msps SAR ADC (9 external channels), 2 low-power comparators, internal temperature sensor
- Power monitor PVD/BOR circuit for undervoltage protection and system stability
4. Electrical & Packaging Info
- Operating Voltage: 1.8V ~ 5.5V, compatible with 3.3V & 5V circuit systems
- Operating Temperature: -40℃ ~ +105℃ industrial wide range
- Package: QFN32
### Typical Application Scenarios
✅ Small home appliances: air fryer, range hood, electric fan, water heater, induction cooker control boards
✅ BLDC motor, water pump, fan speed regulation & drive modules
✅ LED lighting, indicator panel, dimming control equipment
✅ Battery management BMS, portable charging devices, power bank control
✅ Smart sensors, infrared receiving circuits, handheld measuring instruments
✅ Mini industrial controllers, thermostats, alarm and security equipment
### Our Supply Advantages
1. 100% genuine HED original chips, sufficient long-term stock & stable delivery schedule
2. Free engineering samples for customer circuit verification and performance testing
3. Complete datasheetsand professional FAE technical support
4. Flexible MOQ, competitive wholesale pricing for mass electronic manufacturers
