HT32F52352 LQFP64

The HOLTEK HT32F52352 device is high performance, low power consumption 32-bit microcontrollers 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.

Core

32-bit Arm® Cortex®-M0+ processor core
Up to 48 MHz operating frequency
0.93 DMIPS/MHz (Dhrystone v2.1)
Single-cycle multiplication
Integrated Nested Vectored Interrupt Controller (NVIC)
24-bit SysTick timer

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 a configurable output driving current

Power Management — PWRCU

Single VDD power supply : 2.0V to 3.6V
Integrated 1.5 V LDO regulator for CPU core, peripherals and memories power supply
VBAT battery power supply for RTC and backup registers
Three power domains: VDD, 1.5 V and Backup
Four power saving modes: Sleep, Deep-Sleep1, Deep-Sleep2, Power-Down

Analog to Digital Converter — ADC

12-bit SAR ADC engine
Up to 1 Msps conversion rate
Up to 12 external analog input channels

Watchdog Timer — WDT

12-bit down counter with 3-bit prescaler
Reset event for the system
Programmable watchdog timer window function
Registers write protection function

Universal Serial Bus Device Controller – USB

Complies with USB 2.0 full-speed (12 Mbps) specification
On-chip USB full-speed transceiver
1 control endpoint (EP0) for control transfer
3 single-buffered endpoints for bulk and interrupt transfer
4 double-buffered endpoints for bulk, interrupt and isochronous transfer
1,024 bytes EP-SRAM used as the endpoint data buffers