STM32F101x8

Features:

` Core: ARM 32-bit Cortex™-M3 CPU
   36 MHz, 45 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-16 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-16 MHz high-speed 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
` Debug mode
   Serial wire debug (SWD) and JTAG interfaces
` DMA
   7-channel DMA controller
   Peripherals supported: timers, ADC, SPIs, I²Cs and USARTs
` 12-bit, 1 µs A/D converter (16-channel)
   Conversion range: 0 to 3.6 V
   Temperature sensor
` Up to 80 fast I/O ports
   32/49/80 5 V-tolerant I/Os
   All mappable on 16 external interrupt vectors
   Atomic read/modify/write operations
` Up to 6 timers
   Up to three 16-bit timers, each with up to 4 IC/OC/PWM or pulse counter
   2 x 16-bit watchdog timers (Independent and Window)
   SysTick timer: 24-bit downcounter
` Up to 7 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)


Pinout

Specifications

Symbol	Ratings	Min	Max	Unit
VDD−VSS	External 3.3 V supply voltage (including VDDA and VDD)(1)	0.3	4.0	V
VIN	Input voltage on five volt tolerant pin(2)	VSS − 0.3	+5.5
	Input voltage on any other pin(2)	VSS − 0.3	VDD+0.3
|∆VDDx|	Variations between different power pins	50	50	mV
|VSSX − VSS|	Variations between all the different ground pins	50	50
VESD(HBM)	Electrostatic discharge voltage (human body model)	see Section 5.3.11: Absolute maximum ratings (electrical sensitivity)

1. All 3.3 V power (V_DD, V_DDA) and ground (V_SS, V_SSA) pins must always be connected to the external 3.3 V supply.
2. IINJ(PIN) must never be exceeded (see Table 5: Current characteristics). This is implicitly insured if V_IN maximum
    is respected. If V_IN maximum cannot be respected, the injection current must be limited externally to the I_IN
   J(PIN)  value. A positive injection is induced by V_IN>V_DD while a negative injection is induced by V_IN<V_SS.


Description

The STM32F101x8 access line family incorporates the high-performance ARM Cortex™-M3 32-bit RISC core operating at a 36 MHz frequency, high-speed embedded memories (Flash memory up to 128Kbytes and SRAM up to 16 Kbytes), and an extensive range of enhanced peripherals and I/Os connected to two APB buses. All STM32F101x8 offer standard communication interfaces (two I2Cs, two SPIs, and up to three USARTs), one 12-bit ADC and three general
purpose 16-bit timers.

The STM32F101x8 family operates in the −40 to +85°C temperature range, from a 2.0 to 3.6 V power supply. A comprehensive set of power-saving mode allows to design low-power applications.

The complete STM32F101x8 access line family includes devices in 3 different package types: from 48 pins to 100 pins. Depending on the device chosen, different sets of peripherals are included, the description below gives an overview of the complete range of peripherals proposed in this family.

These features make the STM32F101x8 access line microcontroller family suitable for a wide range of applications:
· Application control and user interface
· Medical and handheld equipment
· PC peripherals, gaming and GPS platforms
· Industrial applications: PLC, inverters, printers, and scanners
· Alarm systems, Video intercom, and HVAC