STM32F102x8 STM32F102xB Medium-density USB access line, ARM -based 32-bit MCU with 64/128KB Flash, USB FS, 6 timers, ADC & 8 com. interfaces Datasheet - production data Features Core: ARM 32-bit Cortex -M3 CPU 48 MHz maximum frequency, 1.25 DMIPS/MHz (Dhrystone 2.1) LQFP64 LQFP48 performance at 0 WS memory access 10 10 mm 7 7 mm Single-cycle multiplication and hardware division Memories Up to 6 timers 64 or 128 Kbytes of Flash memory Three 16-bit timers, each with up to 4 IC/OC/PWM or pulse counter 10 or 16 Kbytes of SRAM 2 watchdog timers (Independent and Clock, reset and supply management Window) 2.0 to 3.6 V application supply and I/Os SysTick timer: 24-bit downcounter POR, PDR and programmable voltage Up to 8 communication interfaces detector (PVD) 2 Up to 2 x I C interfaces (SMBus/PMBus) 4-to-16 MHz crystal oscillator Up to 3 USARTs (ISO 7816 interface, LIN, Internal 8 MHz factory-trimmed RC IrDA capability, modem control) Internal 40 kHz RC Up to 2 SPIs (12 Mbit/s) PLL for CPU clock One USB 2.0 full speed interface 32 kHz oscillator for RTC with calibration CRC calculation unit, 96-bit unique ID Low power ECOPACK packages Sleep, Stop and Standby modes V supply for RTC and backup registers BAT Table 1. Device summary Debug mode Reference Part number Serial wire debug (SWD) and JTAG interfaces STM32F102x8 STM32F102C8, STM32F102R8 DMA STM32F102xB STM32F102CB, STM32F102RB 7-channel DMA controller Peripherals supported: timers, ADC, SPIs, 2 I Cs and USARTs 1 12-bit, 1.2 s A/D converter (up to 16 channels) Conversion range: 0 to 3.6 V Temperature sensor Up to 51 fast I/O ports 37/51 I/Os all mappable on 16 external interrupt vectors and almost all 5 V-tolerant June 2015 DocID15056 Rev 6 1/80 This is information on a product in full production. www.st.comContents STM32F102x8, STM32F102xB Contents 1 Introduction 7 2 Description . 8 2.1 Device overview . 9 2.2 Full compatibility throughout the family 12 2.3 Overview . 12 3 Pinout and pin description . 19 4 Memory mapping . 23 5 Electrical characteristics 24 5.1 Parameter conditions 24 5.1.1 Minimum and maximum values . 24 5.1.2 Typical values 24 5.1.3 Typical curves 24 5.1.4 Loading capacitor . 24 5.1.5 Pin input voltage 24 5.1.6 Power supply scheme 25 5.1.7 Current consumption measurement . 26 5.2 Absolute maximum ratings 26 5.3 Operating conditions 28 5.3.1 General operating conditions . 28 5.3.2 Operating conditions at power-up / power-down 28 5.3.3 Embedded reset and power control block characteristics . 29 5.3.4 Embedded reference voltage . 29 5.3.5 Supply current characteristics 30 5.3.6 External clock source characteristics . 39 5.3.7 Internal clock source characteristics . 44 5.3.8 PLL characteristics 45 5.3.9 Memory characteristics . 46 5.3.10 EMC characteristics 47 5.3.11 Absolute maximum ratings (electrical sensitivity) . 48 5.3.12 I/O current injection characteristics 49 2/80 DocID15056 Rev 6