32-bit ARM Cortex™-M3 MCU
HT32F1251/51B/52/53
Overview
3
Device Information
Most features are common to all devices while the main features distinguishing them are Flash
memory and SRAM memory capacities.
Table 1. HT32F125x Series Features and Peripheral List
Peripherals
HT32F1253
HT32F1252
HT32F1251 HT32F1251B
Main Flash (KB)
31
16
8
1
2
8
1
2
Option Bytes Flash (KB)
SRAM (KB)
1
8
2
1
4
GPTM
RTC
1
1
WDT
USART
SPI
1
1
1
I2C
GPIO
EXTI
32
16
30
12-bit ADC
1
Number of channels
8 Channels
OPA/Comparator
CPU frequency
Operating voltage
Operating temperature
Package
2
Up to 72 MHz
2.7 V ~ 3.6 V
-40
~ +85
℃
℃
LQFP48
Rev. 1.00
14 of 35
May 27, 2011
HOLTEK [ HOLTEK SEMICONDUCTOR INC ]
