Preliminary Data This is preliminary information on a new product now in development or undergoing evaluation. Details are subject to change without notice. July 2007 Rev 2
1/67 1 STM32F103x6 STM32F103x8 STM32F103xB Performance line, ARM-based 32-bit MCU with Flash, USB, CAN,seven 16-bit timers, two ADCs and nine communication interfaces Features ■ Core: ARM 32-bit Cortex™-M3 CPU–72 MHz, 90 DMIPS with 1.25 DMIPS/MHz–Single-cycle multiplication and hardware division –Nested interrupt controller with 43 maskable interrupt channels –Interrupt processing (down to 6 CPU cycles) with tail chaining ■ Memories –32-to-128 Kbytes of Flash memory–6-to-20 Kbytes of SRAM ■ Clock, reset and supply management–2.0 to 3.6V application supply and I/Os –POR, PDR, and programmable voltage detector (PVD) –4-to-16 MHz quartz oscillator –Internal 8 MHz factory-trimmed RC–Internal 32 kHz RC–PLL for CPU clock –Dedicated 32 kHz oscillator for RTC with calibration ■ Low power –Sleep, Stop and Standby modes –VBAT supply for RTC and backup registers ■ 2 x 12-bit, 1 µs A/D converters (16-channel)–Conversion range: 0 to 3.6 V–Dual-sample and hold capability –Synchronizable with advanced control timer– Temperature sensor ■ DMA –7-channel DMA controller –Peripherals supported: timers, ADC, SPIs, I2Cs and USARTs ■ Debug mode –Serial wire debug (SWD) & JTAG interfaces■ Up to 80 fast I/O ports –32/49/80 5V-tolerant I/Os –All mappable on 16 external interrupt vectors –Atomic read/modify/write operations ■ Up to 7 timers –Up to three 16-bit timers, each with up to 4 IC/OC/PWM or pulse counter –16-bit, 6-channel advanced control timer: up to 6 channels for PWM outputDead time generation and emergency stop –2 x 16-bit watchdog timers (Independent and Window) –SysTick timer: a 24-bit downcounter ■ Up to 9 communication interfaces –Up to 2 x I2C interfaces (SMBus/PMBus)–Up to 3 USARTs (ISO 7816 interface, LIN, IrDA capability, modem control)–Up to 2 SPIs (18 Mbit/s)–CAN interface (2.0B Active)–USB 2.0 full speed interface
Table 1. Device summary Reference Root part number |
