HT32F66546G Datasheet | Holtek Semiconductor

Description 32-Bit Arm® Cortex®-M0+ BLDC Motor MCU with 48 V Half-bridge N/N Gate-Driver, CORDIC and PID Engine HT32F66546G 1 General Description The Holtek HT32F66546G is a high performance, low power consumption 32-bit microcontroller based around an Arm® Cortex®-M0+ processor core. The Cortex®-M0+ is a next-generation processor core which is tightly coupled with Nested Vectored Interrupt Controller (NVIC), Sys Tick timer, and including advanced debug support. The device operates at a frequency of up to 80 MHz with a Flash accelerator to obtain maximum efficiency. The device provides 64 KB of embedded Flash memory for code/data storage and 8 KB of embedded SRAM memory for system operation and application program usage. A variety of peripherals, such as CORIDC, PID, Hardware Divider DIV, ADC, PGA, CMP, I2C, USART, UART, SPI, CAN, BFTM, MCTM, GPTM, SCTM, LSTM, WDT, CRC-16/32, 96-bit Unique ID, PDMA and SW-DP (Serial Wire Debug Port), etc., are also implemented in the device series. Several power saving modes provide the flexibility for maximum optimization between wakeup latency and power consumption, an especially important consideration in low power applications. The device integrates PGA, CMP, DAC and MCTM’s brake functions, which are bined for OCP protection. In order to implement the FOC algorithm, the MCTM can be used to trigger ADC to read PGA output at the same time for detecting real-time phase current information. The device also includes a gate-driver for 3-phase motor driving applications. The gate-driver has several internal protection functions and provides an integrated 5 V low quiescent current LDO which can provide power supply. The above features ensure that the device is suitable for use in 2-wheeled electric bicycles, robotic joints and garden tools and so on. Rev. 1.00 6 of 55 August 05, 2025 2 Features 32-Bit Arm® Cortex®-M0+ BLDC Motor MCU with 48 V Half-bridge N/N Gate-Driver, CORDIC and PID Engine HT32F66546G 2 Features Core ▆ 32-bit...