HT32F61049

32-Bit Arm® Cortex®-M0+ MPPT MCU

General Information

The Holtek HT32F61049 device 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), SysTick timer and including advanced debug support.

The device operates at a frequency of up to 60 MHz with a Flash accelerator to obtain maximum efficiency. It 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 Hardware Divider DIV, ADC, OPA, CMP, I²C, USART, UART, SPI, MCTM, GPTM, SCTM, BFTM, CRC-16/32, 96-bit Unique ID, RTC, WDT, PDMA, SW-DP (Serial Wire Debug Port), etc., are also implemented in the device. 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 above features ensure that the device is suitable for use in a wide range of maximum power point tracking (MPPT) applications for various solar panel products.

Feature Details

Core
  • 32-bit Arm® Cortex®-M0+ processor core
  • Up to 60 MHz operating frequency
  • Single-cycle multiplication
  • Integrated Nested Vectored Interrupt Controller (NVIC)
  • 24-bit SysTick timer
On-Chip Memory
  • 64 KB on-chip Flash memory for instruction/data and option byte storage
  • 8 KB on-chip SRAM
  • Supports multiple booting modes
Flash Memory Controller – FMC
  • Flash accelerator to obtain maximum efficiency
  • 32-bit word programming with In System Programming (ISP) and In Application Programming (IAP)
  • Flash protection capability to prevent illegal access

Reset Control Unit – RSTCU

Supply supervisor
  • - Power On Reset / Power Down Reset – POR/PDR
  • - Brown-out Detector – BOD
  • - Programmable Low Voltage Detector – LVD

Feature Details

Clock Control Unit – CKCU
  • External 4 to 16 MHz crystal oscillator
  • External 32.768 kHz crystal oscillator
  • Internal 8 MHz RC oscillator trimmed to ±2 % accuracy at 5.0 V operating voltage and 25 °C operating temperature
  • Internal 32 kHz RC oscillator
  • Integrated system clock PLL
  • Independent clock divider and gating bits for peripheral clock sources

Power Management – PWRCU

Single VDD power supply

2.5 V to 5.5 V

Integrated 1.5 V LDO regulator for MCU core, peripherals and memories power supplyAvailable
Two power domains

VDD and VCORE power domains

Two power saving modes

Sleep and Deep-Sleep modes

Feature Details

External Interrupt/Event Controller – EXTI
  • Up to 16 EXTI lines with configurable trigger source and type
  • All GPIO pins can be selected as EXTI trigger source
  • Source trigger type includes high level, low level, negative edge, positive edge or both edges
  • Individual interrupt enable, wakeup enable and status bits for each EXTI line
  • Software interrupt trigger mode for each EXTI line
  • Integrated deglitch filter for short pulse blocking
Analog to Digital Converter – ADC
  • 12-bit SAR ADC engine
  • Up to 1 Msps conversion rate
  • Up to 8 external analog input channels for each ADC
Operational Amplifier – OPA
  • Rail-to-rail operational amplifier
  • Fixed dedicated I/O pins
  • Internal output paths to A/D converter or comparator

Comparator – CMP

Three Rail-to-rail comparatorsAvailable
Each comparator has configurable negative inputs used for flexible voltage selection
  • - Dedicated I/O pin
  • - Internal voltage reference provided by 6-bit scaler
Programmable hysteresisAvailable
Programmable response speed and consumptionAvailable
Comparator output can be output to I/O or to multiple timer or ADC trigger inputsAvailable
6-bit scaler can be configured to dedicated I/O for voltage referenceAvailable
Comparator n inverting input can be from CMP0N, CMPnN or CVREFAvailable
Interrupt generation capability with wakeup from Sleep or Deep Sleep mode through the EXTI controllerAvailable

Feature Details

I/O Ports – GPIO
  • Up to 40 GPIOs
  • Port A, B, C are mapped as 16 external interrupts – EXTI
  • Almost all I/O pins have configurable output driving current
Motor Control Timer – MCTM
  • 16-bit up, down, up/down auto-reload counter
  • Up to 4 independent channels
  • 16-bit programmable prescaler that allows division of the prescaler clock source by any factor between 1 and 65536 to generate the counter clock frequency
  • Input Capture function
  • Compare Match Output
  • PWM waveform generation with Edge-aligned and Center-aligned Counting Modes
  • Single Pulse Mode Output
  • Complementary Outputs with programmable dead-time insertion
  • Break input signals to assert the timer output signals in reset state or in a known state
General-Purpose Timer – GPTM
  • 16-bit up, down, up/down auto-reload counter
  • Up to 4 independent channels
  • 16-bit programmable prescaler that allows division of the prescaler clock source by any factor between 1 and 65536 to generate the counter clock frequency
  • Input Capture function
  • Compare Match Output
  • PWM waveform generation with Edge-aligned and Center-aligned
  • Single Pulse Mode Output
  • Encoder interface controller with two inputs using quadrature decoder and Pulse/Direction Mode
  • Master/Slave mode controller

Single-Channel Timer – SCTM

16-bit auto-reload up-counterAvailable
One channel for each timerAvailable
16-bit programmable prescaler that allows division of the prescaler clock source by any factor

between 1 and 65536 to generate the counter clock frequency

Input Capture functionAvailable
Compare Match OutputAvailable
PWM waveform generation with Edge-alignedAvailable

Feature Details

Basic Function Timer – BFTM
  • 32-bit compare match up-counter – no I/O control
  • One shot mode – counter stops counting when compare match occurs
  • Repetitive mode – counter restarts when compare match occurs
Watchdog Timer – WDT
  • 12-bit down-counter with 3-bit prescaler
  • Provide reset to the system
  • Programmable watchdog timer window function
  • Register write protection function
Real Time Clock – RTC
  • 24-bit up-counter with a programmable prescaler
  • Alarm function
  • Interrupt and Wake-up control
Inter-Integrated Circuit – I²C
  • Supports both master and slave modes with a frequency of up to 1 MHz
  • Provides an arbitration function and clock synchronization
  • Supports 7-bit and 10-bit addressing modes and general call addressing
  • Supports slave multi-addressing mode using address mask function

Serial Peripheral Interface– SPI

Supports both master and slave modesAvailable
Frequency of up to (fPCLK/2) MHz for the master mode and (fPCLK/3) MHz for the slave modeAvailable
FIFO Depth

8 levels

Multi-master and multi-slave operationAvailable

Universal Asynchronous Receiver Transmitter – UART

Asynchronous serial communication operating baud-rate up to (fPCLK/16) MHzAvailable
Full duplex communicationAvailable
Fully programmable serial communication characteristics including:
  • - Word length: 7, 8 or 9-bit character
  • - Parity: Even, odd or no-parity bit generation and detection
  • - Stop bit: 1 or 2 stop bits generation
  • - Bit order: LSB-first or MSB-first transfer
Error detection

Parity, overrun and frame error

Universal Synchronous Asynchronous Receiver Transmitter – USART

Supports both asynchronous and clocked synchronous serial communication modesAvailable
Programmable baud rate clock frequency up to (fPCLK/16) MHz for Asynchronous mode and (fPCLK/8) MHz for synchronous modeAvailable
Full duplex communicationAvailable
Fully programmable serial communication characteristics including:
  • - Word length: 7, 8 or 9-bit character
  • - Parity: Even, odd or no-parity bit generation and detection
  • - Stop bit: 1 or 2 stop bits generation
  • - Bit order: LSB-first or MSB-first transfer
Error detection

Parity, overrun and frame error

Auto hardware flow control mode – RTS, CTSAvailable
IrDA SIR encoder and decoderAvailable
RS485 mode with output enable controlAvailable
FIFO Depth

8-level for both receiver and transmitter

Cyclic Redundancy Check – CRC

Supports CRC16 polynomial: 0x8005,

X16+X15+X2+1

Supports CCITT CRC16 polynomial: 0x1021,

X16+X12+X5+1

Supports IEEE-802.3 CRC32 polynomial: 0x04C11DB7,

X32+X26+X23+X22+X16+X12+X11+X10+X8+X7+X5+X4+X2+X+1

Supports 1’s complement, byte reverse & bit reverse operation on data and checksumAvailable
Supports byte, half-word & word data sizeAvailable
Programmable CRC initial seed valueAvailable
CRC computation done in 1 AHB clock cycle for 8-bit data and 4 AHB clock cycles for 32-bit dataAvailable
Supports PDMA to complete a CRC computation of a block of memoryAvailable

Peripheral Direct Memory Access – PDMA

6 channels with trigger source groupingAvailable
8-bit, 16-bit and 32-bit width data transferAvailable
Supports Linear address, circular address and fixed address modesAvailable
4-level programmable channel priorityAvailable
Auto reload modeAvailable
Supports trigger source:

ADC, SPI, USART, UART, I²C, MCTM, GPTM, SCTM and software request

Feature Details

Hardware Divider – DIV
  • Signed/unsigned 32-bit divider
  • Calculate in 8 clock cycles, load in 1 clock cycle
  • Division by zero error Flag
Unique Identifier – UID
  • Total 96-bit UID is unique and not duplicate with other HT32 MCU devices
  • It is unchangeable and determined by MCU manufacturer
Debug Support
  • Serial Wire Debug Port – SW-DP
  • 4 comparators for hardware breakpoint or code / literal patch
  • 2 comparators for hardware watchpoints

Package and Operation Temperature

48-pin LQFP packageAvailable
Operation temperature range

-40 °C to 105 °C

Resources

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