### Product Overview
CIU32F032E8U7TR is a cost-efficient general-purpose 32-bit microcontroller from Huada Electronics (HED), built on ARM Cortex-M0+ core running at max 48MHz, packaged in compact QFN24 tape & reel form factor. It carries 64KB Flash program memory and 6KB SRAM, supporting ultra-wide 1.8V~5.5V power supply and -40℃~+105℃ industrial temperature range. Equipped with up to 28 multi-function GPIO including 13 high-drive pins , this chip integrates 8-channel PWM, dual 24Mbps SPI, low-power LPUART wake-up port, 1Msps 12-bit SAR ADC, dual voltage comparators, RTC calendar, 3-channel DMA and hardware CRC module.
### Core Key Specifications
1. Core & Memory
- ARM Cortex-M0+ 32-bit CPU, single-cycle multiplication, internal 48MHz RC oscillator (±2% full temp accuracy)
- Storage: 64KB Flash + 6KB SRAM, support IAP online firmware upgrade
- Hardware CRC16, 96-bit unique chip ID, standard SWD debug interface
- Multi low-power modes: Sleep / Stop with SRAM retention
2. IO & Timing Resources
- Total 28 GPIOs, 13 high-current drive IOs up to 65mA for direct LED/relay driving
- 6 integrated timers
- 8 PWM output channels for fan, BLDC motor and light dimming control
- All GPIOs 5V tolerant, multi external interrupt trigger
3. Communication & Analog Modules
- Interfaces: 2×SPI (24Mbps), 2×UART, 1×LPUART (sleep wake-up), 1×1Mbps I2C, 3 independent DMA channels
- Analog: 12-bit 1Msps SAR ADC with 9 input channels, 2 low-power comparators, internal temperature sensor
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: QFN24
### Typical Application Scenarios
✅ Compact small home appliance control boards: mini fan, humidifier, electric kettle, air purifier
✅ LED indicator panels, dimming lighting modules and small display screens
✅ Portable power bank, lithium battery BMS & charging management boards
✅ Mini BLDC fan, water pump and small valve drive circuits
✅ Infrared receiving boards, handheld measuring instruments, smart sensors
✅ Mini industrial controllers, thermostat and low-power alarm equipment
### Our Supply Advantages
1. 100% genuine original HED chips, long-term sufficient stock and stable delivery
2. Free engineering samples for customer circuit verification and performance testing
3. Complete datasheets and professional FAE technical support
4. Flexible MOQ, competitive bulk wholesale price for global electronics manufacturers
