This is information on a product in full production.

May 2015 DocID16553 Rev 4 1/116

STM32F101xF

STM32F101xG

XL-density access line, ARM

-based 32-bit MCU with 768 KB

to 1 MB Flash, 15 timers, 1 ADC and 10 communication interfaces

Datasheet − production data

Features

• Core: ARM

32-bit Cortex

-M3 CPU with MPU

– 36 MHz maximum frequency,

1.25 DMIPS/MHz (Dhrystone 2.1)

performance

– Single-cycle multiplication and hardware

division

• Memories

– 768 Kbytes to 1 Mbyte of Flash memory

(dual bank with read-while-write capability)

– 80 Kbytes of SRAM

– Flexible static memory controller with 4

Chip Select. Supports Compact Flash,

SRAM, PSRAM, NOR and NAND

memories

– LCD parallel interface, 8080/6800 modes

• 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 crystal oscillator

– Internal 8 MHz factory-trimmed RC

– Internal 40 kHz RC with calibration

capability

– 32 kHz oscillator for RTC with calibration

• Low power

– Sleep, Stop and Standby modes

–V

BAT

supply for RTC and backup registers

• 1 x 12-bit, 1 µs A/D converters (up to 16

channels)

– Conversion range: 0 to 3.6 V

– Temperature sensor

• 2 × 12-bit D/A converters

• DMA

– 12-channel DMA controller

– Peripherals supported: timers, ADC, DAC,

SPIs, I

Cs and USARTs

• Up to 112 fast I/O ports

– 51/80/112 I/Os, all mappable on 16

external interrupt vectors and almost all

5 V-tolerant

• Debug mode

– Serial wire debug (SWD) & JTAG

interfaces

– Cortex-M3 Embedded Trace Macrocell™

• Up to 15 timers

– Up to ten 16-bit timers, with up to 4

IC/OC/PWM or pulse counters

– 2 × watchdog timers (Independent and

Window)

– SysTick timer: a 24-bit downcounter

– 2 × 16-bit basic timers to drive the DAC

• Up to 10 communication interfaces

– Up to 2 x I

C interfaces (SM7816 interface,

LIN, IrDA capability, modem control)

– Up to 3 SPIs (18 Mbit/s)

• CRC calculation unit, 96-bit unique ID

• ECOPACK

packages

Table 1. Device summary

Reference Part number

STM32F101xF

STM32F101RF STM32F101VF

STM32F101ZF

STM32F101xG

STM32F101RG STM32F101VG

STM32F101ZG

LQFP144

20 × 20 mm

LQFP64

10 × 10 mm

LQFP100

14 × 14 mm

www.st.com

Contents STM32F101xF, STM32F101xG

2/116 DocID16553 Rev 4

Contents

1 Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9

2 Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10

2.1 Device overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .11

2.2 Full compatibility throughout the family . . . . . . . . . . . . . . . . . . . . . . . . . . 14

2.3 Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15

2.3.1 ARM

Cortex

-M3 core with embedded Flash and SRAM . . . . . . . . . . 15

2.3.2 Memory protection unit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15

2.3.3 Embedded Flash memory . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15

2.3.4 CRC (cyclic redundancy check) calculation unit . . . . . . . . . . . . . . . . . . 15

2.3.5 Embedded SRAM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16

2.3.6 FSMC (flexible static memory controller) . . . . . . . . . . . . . . . . . . . . . . . . 16

2.3.7 LCD parallel interface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16

2.3.8 Nested vectored interrupt controller (NVIC) . . . . . . . . . . . . . . . . . . . . . . 16

2.3.9 External interrupt/event controller (EXTI) . . . . . . . . . . . . . . . . . . . . . . . 16

2.3.10 Clocks and startup . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17

2.3.11 Boot modes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17

2.3.12 Power supply schemes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17

2.3.13 Power supply supervisor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17

2.3.14 Voltage regulator . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18

2.3.15 Low-power modes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18

2.3.16 DMA . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18

2.3.17 RTC (real-time clock) and backup registers . . . . . . . . . . . . . . . . . . . . . . 19

2.3.18 Timers and watchdogs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19

2.3.19 I²C bus . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21

2.3.20 Universal synchronous/asynchronous receiver transmitters (USARTs) . 21

2.3.21 Serial peripheral interface (SPI) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21

2.3.22 GPIOs (general-purpose inputs/outputs) . . . . . . . . . . . . . . . . . . . . . . . . 21

2.3.23 ADC (analog to digital converter) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21

2.3.24 DAC (digital-to-analog converter) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22

2.3.25 Temperature sensor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22

2.3.26 Serial wire JTAG debug port (SWJ-DP) . . . . . . . . . . . . . . . . . . . . . . . . . 22

2.3.27 Embedded Trace Macrocell™ . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22