Low & medium-density value line, advanced ARM-based 32-bit MCU

with 16 to 128 KB Flash, 12 timers, ADC, DAC & 8 comm interfaces

Features

■ Core: ARM 32-bit Cortex™-M3 CPU

– 24 MHz maximum frequency,

1.25 DMIPS/MHz (Dhrystone 2.1) 

performance

– Single-cycle multiplication and hardware 

division

■ Memories

– 16 to 128 Kbytes of Flash memory

– 4 to 8 Kbytes of SRAM

■ Clock, reset and supply management

– 2.0 to 3.6 V application supply and I/Os

– POR, PDR and programmable voltage 

detector (PVD)

– 4-to-24 MHz crystal oscillator

– Internal 8 MHz factory-trimmed RC

– Internal 40 kHz RC

– PLL for CPU clock

– 32 kHz oscillator for RTC with calibration

■ Low power

– Sleep, Stop and Standby modes

– VBAT

 supply for RTC and backup registers

■ Debug mode

– Serial wire debug (SWD) and JTAG 

interfaces

■ DMA

– 7-channel DMA controller

– Peripherals supported: timers, ADC, SPIs, 

I

2

Cs, USARTs and DACs

■ 1 × 12-bit, 1.2 µs A/D converter (up to 16 

channels)

– Conversion range: 0 to 3.6 V

– Temperature sensor

■ 2 × 12-bit D/A converters

■ Up to 80 fast I/O ports

– 37/51/80 I/Os, all mappable on 16 external 

interrupt vectors and almost all 5 V-tolerant