32-bit ARM Cortex™-M3 MCU
HT32F1251/51B/52/53
I/O Port Characteristics........................................................................................................26
ADC Characteristics ............................................................................................................28
Operation Amplifier/Comparator Characteristics ................................................................. 29
GPTM Characteristics..........................................................................................................29
I2C Characteristics ...............................................................................................................30
SPI Characteristics ..............................................................................................................31
5 Package Information ............................................................................................ 33
48-pin LQFP (7mmx7mm) Outline Dimensions................................................................... 33
Rev. 1.00
3 of 35
May 27, 2011