Features

ARM ^® Cortex^TM-M3 Core

• Frequency up to 48 MHz
• Flash access zero wait state
• Single-cycle multiplier and hardware divider
• NVIC support 16 internal & 60 external interrupts, each has 16 priority levels

Memories

• Flash size from 16KB to 64 KB
• SRAM size from 4KB to 8 KB with HW parity checking
• 3KB ISP loader ROM

Low power management

• Power saving mode: sleep, deep-sleep & standby mode
• Independent battery supply for real-calendar RTC and backup register

Advanced analog peripherals

• 1 x 12bit, 1μs ADC (up to 16 chs)

Integrated peripherals interface

• Up to 2 x USART/UART/Irda/LIN/ISO7816
• Up to 2 x SPI (18Mbit/s)
• Up to 2 x I2C (400Kbit/s)

On-chip resources

• 1 x 16 bit Advanced Timer, 1 x SysTick Timer, 5 x 16 bit GPTM, 1x 32 bit GPTM, 2 x WDG
• 5-chs DMA support: Timers, ADC, SPIs, I2Cs, USARTs
• System supervisor and reset: POR,PDR,LVD
• 80% GPIO available
• 32-bit CRC & 96-bit unique ID
• On-chip clock: HSI (8MHz), LSI (40KHz)

Package

• TSSOP20 (6.5 x 4.4 x 1mm)
• QFN28 (4 x 4 x 0.75mm)
• QFN32 (5 x 5 x 0.75mm)
• LQFP48(7 x 7 x 1mm)
• LQFP64 (10 x 10 x 1.4mm)