General Description

The Holtek HT32F1755/1765/2755 devices are high performance and low power consumption 32-bit

microcontrollers based around an ARM? Cortex?-M3 processor core. The Cortex?-M3 is a next-generation processor core which is tightly coupled with Nested Vectored Interrupt Controller (NVIC), SysTick timer, and including advanced debug support.

Features

Core

? 32-bit ARM? Cortex?-M3 processor core

? Up to 72MHz operation frequency

? 1.25 DMIPS/MHz (Dhrystone 2.1)

? Single-cycle multiplication and hardware division

? Integrated Nested Vectored Interrupt Controller (NVIC)

? 24-bit SysTick timer

On-chip Memory

? 128KBon-chip Flash memory for instruction/data and options storage

? up to 64KBon-chip SRAM

? Supports multiple boot modes

Flash Memory Controller

? Flash accelerator formaximum efficiency

? 32-bit word programming with In System Programming Interface (ISP) and In Application Programming (IAP)

? Flash protection capability to prevent illegal access

Reset Control Unit

? Supply supervisor:

● Power-on Reset – POR

● Brown-out Detector – BOD

● Programmable Low Voltage Detector – LVD

Clock Control Unit

? External 4 to 16MHz crystal oscillator

? External 32,768Hz crystal oscillator

? Internal 8MHz RC oscillator trimmed to ±2 accuracy at 3.3V operating voltage and 25°C operating temperature

? Internal 32kHz RC oscillator

? Integrated system clock PLL

? Independent clock gating bits for peripheral clock sources

Power Management

? Single 3.3V power supply: 2.7V to 3.6V

? Integrated 1.8V LDO regulator for core and peripheral power supply

? VBATbattery power supply for RTC and backup registers

? Three power domains: 3.3V, 1.8V and Backup

? Four power saving modes: Sleep, Deep-Sleep1, Deep-Sleep2, Power-Down

Analog to Digital Converter

? 12-bit SAR ADC engine

? Up to 1Msps conversion rate – 1μs at 56MHz, 1.17μs at 72MHz

? 8 external analog input channels

? Supply voltage range: 2.7V ~ 3.6V

? Conversion range: VREF+~ VREF

Analog Operational Amplifier/Comparator

? Two Operational Amplifiers or Comparator functions which are software configurable

? Supply voltage range: 2.7V ~ 3.6V

I/O Ports

? Up to 80 GPIOs

? Port A, B, C, D, E are mapped as 16 external interrupts – EXTI

? Almost all I/O pins are 5V-tolerant except for pins shared with analog inputs

PWM Generation and Capture Timers – GPTM

? Two 16-bit General-Purpose Timers – GPTM

? Up to 4-channel PWM Compare Output or Input Capture function for each GPTM

? External trigger input