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UM324xG
Core: ARM Cortex-M4, maximum operating frequency of 168MHz (204MHz@boost mode)
Computing Capabilities: Built-in FPU (Single-Precision Floating-Point Unit) and equipped with DSP (Digital Signal Processing) instruction set
64KB SRAM (Static Random-Access Memory)
256KB eFlash (Embedded Flash Memory)
Standby Mode: 1.5μA @3.0V, with RTC (Real-Time Clock) in operation
Run Mode: 70μA/MHz @3.0V @168MHz
GPIO (General-Purpose Input/Output): Up to 54 pins, configurable with four drive current levels: 20mA, 14mA, 6mA, and 2mA
PWM (Pulse-Width Modulation): 37 PWM output channels; maximum PWM precision of 1.736ns@576MHz (achieved via 4x frequency multiplication of the 144MHz system clock)
2 low-power LPUARTs (Low-Power Universal Asynchronous Receiver/Transmitters)
4 general-purpose UARTs (Universal Asynchronous Receiver/Transmitters)
2 USARTs (Universal Synchronous/Asynchronous Receiver/Transmitters)
I2C Interface: 3 channels, maximum data rate of 1Mbps
CAN Bus: Supports CAN FD (Flexible Data-Rate) with a maximum communication rate of 5Mbps, and is backward compatible with CAN 2.0A/B protocols
DAC (Digital-to-Analog Converter): 1 unit of 12-bit DAC, with a sampling rate of 1Msps (Mega Samples Per Second)
ADC (Analog-to-Digital Converter): 2 units of 12-bit ADCs, 16 channels supporting both single-ended and differential input, with a maximum sampling rate of 5.25Msps
3 OPAs (Operational Amplifiers)
3 ACMPs (Analog Comparators)
USB Interface: 1 USB interface, supporting Full-Speed USB FS (Full-Speed) Device interface (with built-in PHY (Physical Layer))
Dedicated Accelerator: Cordic accelerator (supports operations including sine, cosine, arctangent, square root, multiplication, division, etc.)
Hardware Encryption/Decryption: AES (Advanced Encryption Standard) with 128-bit/256-bit key support
Operating Voltage: 1.8 ~ 3.6V
Operating Temperature: -40 ~ 105°C
ESD (Electrostatic Discharge) Protection: 4KV (HBM - Human Body Model), 1.5KV (CDM - Charged Device Model)
LU (Load Current): 200mA
Package Types: LQFP64, LQFP48, QFN40
32 products in total
| Part number | Core | Voltage (V) | Pre_driver | Max freq. (MHz) | GPIO | Flash (KB) | RAM (KB) | OPA | CMP | ADC(CH) | Package |
|---|---|---|---|---|---|---|---|---|---|---|---|
| UM32G421-RCT7 | M4 | 1.8~3.6 | - | 204 | 54 | 256 | 64 | 3 | 3 | 16 | LQFP64 |
| UM32G421-CCT7 | M4 | 1.8~3.6 | - | 204 | 40 | 256 | 64 | 3 | 3 | 12 | LQFP48 |
| UM32G421-HCU7 | M4 | 1.8~3.6 | - | 204 | 36 | 256 | 64 | 3 | 3 | 15 | QFN40 |
As garden tools have gradually expanded from professional application fields such as industry to civil use, miniaturization, intelligence, and cordless lithium-battery power have become the main development trends of the garden tool industry in the future. The industry is in need of more compact, energy-efficient, high-performance, safer, and more cost-effective control solutions for garden tools.
Datasheet
Version
Update time
DownloadV1.3.4
2025/08/27
User Manual
Version
Update time
DownloadV1.3.1
2025/08/14