Introduction; Overview; Features - Holtek HT32F54231 User Manual

32-Bit Arm ® Cortex ® -M0+ MCU
HT32F54231/HT32F54241/HT32F54243/HT32F54253
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Introduction

Overview

This user manual provides detailed information including how to use the HT32F54231/
HT32F54241/HT32F54243/HT32F54253 devices, system and bus architecture, memory
organization and peripheral instructions. The target audiences for this document are software
developers, application developers and hardware developers. For more information regarding pin
assignment, package and electrical characteristics, please refer to the HT32F54231/HT32F54241/
HT32F54243/HT32F54253 datasheet.
The devices are high performance and low power consumption 32-bit microcontrollers based
around an Arm
core which is tightly coupled with Nested Vectored Interrupt Controller (NVIC), SysTick timer and
advanced debug support.
The devices operate at a frequency of up to 60 MHz with a Flash accelerator to obtain maximum
efficiency. It provides up to 128 KB of embedded Flash memory for code/data storage and up to
16 KB of embedded SRAM memory for system operation and application program usage. A variety
of peripherals, such as Hardware Divider DIV, PDMA, ADC, I
SCTM, BFTM, MCTM, CRC-16/32, RTC, WDT, Touch key, LED controller 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,
which is an especially important consideration in low power applications.
The above features ensure that the devices are suitable for use in a wide range of applications,
especially in areas such as washing machines, refrigerators, electric pressure cookers, high-speed
blenders, rice cookers and so on.

Features

Core
▆
● 32-bit Arm
● Up to 60 MHz operating frequency
● Single-cycle multiplication
● Integrated Nested Vectored Interrupt Controller (NVIC)
● 24-bit SysTick timer
On-Chip Memory
▆
● Up to 128 KB on-chip Flash memory for instruction/data and option storage
● Up to 16 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
Rev. 1.00
Cortex -M0+ processor core. The Cortex
® ®
® Cortex ® -M0+ processor core
25 of 576
-M0+ is a next-generation processor
®
C, USART, UART, SPI, GPTM,
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January 28, 2022