Features

ARM ® Cortex^TM-M23 Core

• Frequency up to 72 MHz
• Flash access 0~2 wait states
• Single-cycle multiplier and 17-cycle divider
• Up to 28 maskable peripheral Interrupts, with 4 priority levels

Memories

• Flash size from 16KB to 64KB
• SRAM size up to 8KB
• 3KB ISP loader ROM

Low power management

Several power saving modes, suitable for low power applications

Advanced analog peripherals

• 1 x 12bit, 1μs ADC (up to 10 chs)
• 1 x Rail to Rail Comparator

Integrated peripherals interface

• Up to 2 x USART and supports Irda/LIN/ISO7816
• Up to 2 x SPI (up to 18MHz clock frequency), 2 x I2S multiplexed
• Up to 2 x I2C (up to 1MHz clock frequency)

On-chip resources

• 1 x 16 bit Advanced Timer, 5 x 16 bit GPTM,
• 1 x 24bit SysTick Timer, 1 x 16 bit Basic Timer, 2 x WDG
• 5-chs DMA support: Timers, ADC, SPIs, I2Cs, USARTs, and I2Ss
• 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

• LGA20 (3 x 3 x 0.4mm)
• TSSOP20 (4.4 x 6.5 x 1mm)
• QFN28 (4 x 4 x 0.85mm)
• QFN32 (5 x 5 x 0.85mm)
• LQFP32 (7 x 7 x 1.4mm)
• LQFP48 (7 x 7 x 1.4mm)