STM32F051K4 Datasheet PDF - STMicroelectronics

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STM32F051K4
STMicroelectronics

Part Number STM32F051K4
Description (STM32F051x4 / STM32F051x6 / STM32F051x8) 32-bit MCU
Page 30 Pages


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STM32F051x4 STM32F051x6
STM32F051x8
ARM®-based 32-bit MCU, 16 to 64 KB Flash, 11 timers, ADC,
DAC and communication interfaces, 2.0-3.6 V
Datasheet - production data
Features
Core: ARM® 32-bit Cortex®-M0 CPU,
frequency up to 48 MHz
Memories
– 16 to 64 Kbytes of Flash memory
– 8 Kbytes of SRAM with HW parity checking
CRC calculation unit
Reset and power management
– Digital and I/O supply: VDD = 2.0 V to 3.6 V
– Analog supply: VDDA = from VDD to 3.6 V
– Power-on/Power down reset (POR/PDR)
– Programmable voltage detector (PVD)
– Low power modes: Sleep, Stop, Standby
– VBAT supply for RTC and backup registers
Clock management
– 4 to 32 MHz crystal oscillator
– 32 kHz oscillator for RTC with calibration
– Internal 8 MHz RC with x6 PLL option
– Internal 40 kHz RC oscillator
Up to 55 fast I/Os
– All mappable on external interrupt vectors
– Up to 36 I/Os with 5 V tolerant capability
5-channel DMA controller
One 12-bit, 1.0 µs ADC (up to 16 channels)
– Conversion range: 0 to 3.6 V
– Separate analog supply from 2.4 up to 3.6
One 12-bit DAC channel
Two fast low-power analog comparators with
programmable input and output
Up to 18 capacitive sensing channels
supporting touchkey, linear and rotary touch
sensors
Up to 11 timers
– One 16-bit 7-channel advanced-control
timer for 6 channels PWM output, with
deadtime generation and emergency stop
– One 32-bit and one 16-bit timer, with up to
4 IC/OC, usable for IR control decoding
&"'!
LQFP64 10x10 mm UFQFPN48 7x7 mm UFBGA64 WLCSP36
LQFP48 7x7 mm UFQFPN32 5x5 mm 5x5 mm 2.6x2.7 mm
LQFP32 7x7 mm
– One 16-bit timer, with 2 IC/OC, 1 OCN,
deadtime generation and emergency stop
– Two 16-bit timers, each with IC/OC and
OCN, deadtime generation, emergency
stop and modulator gate for IR control
– One 16-bit timer with 1 IC/OC
– Independent and system watchdog timers
– SysTick timer: 24-bit downcounter
– One 16-bit basic timer to drive the DAC
Calendar RTC with alarm and periodic wakeup
from Stop/Standby
Communication interfaces
– Up to two I2C interfaces, one supporting
Fast Mode Plus (1 Mbit/s) with 20 mA
current sink, SMBus/PMBus and wakeup
from Stop mode
– Up to two USARTs supporting master
synchronous SPI and modem control, one
with ISO7816 interface, LIN, IrDA
capability, auto baud rate detection and
wakeup feature
– Up to two SPIs (18 Mbit/s) with 4 to 16
programmable bit frame, one with I2S
interface multiplexed
HDMI CEC interface, wakeup on header
reception
Serial wire debug (SWD)
96-bit unique ID
All packages ECOPACK®2
Table 1. Device summary
Reference
Part number
STM32F051xx
STM32F051C4, STM32F051K4, STM32F051R4
STM32F051C6, STM32F051K6, STM32F051R6
STM32F051C8, STM32F051K8, STM32F051R8,
STM32F051T8
December 2015
This is information on a product in full production.
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Contents
Contents
STM32F051x4 STM32F051x6 STM32F051x8
1
2
3
2/121
Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
Functional overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
3.1 ARM®-Cortex®-M0 core . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
3.2 Memories . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
3.3 Boot modes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
3.4 Cyclic redundancy check calculation unit (CRC) . . . . . . . . . . . . . . . . . . . 14
3.5 Power management . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
3.5.1 Power supply schemes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
3.5.2 Power supply supervisors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
3.5.3 Voltage regulator . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
3.5.4 Low-power modes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
3.6 Clocks and startup . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
3.7 General-purpose inputs/outputs (GPIOs) . . . . . . . . . . . . . . . . . . . . . . . . . 16
3.8 Direct memory access controller (DMA) . . . . . . . . . . . . . . . . . . . . . . . . . . 17
3.9 Interrupts and events . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
3.9.1 Nested vectored interrupt controller (NVIC) . . . . . . . . . . . . . . . . . . . . . . 17
3.9.2 Extended interrupt/event controller (EXTI) . . . . . . . . . . . . . . . . . . . . . . 17
3.10 Analog-to-digital converter (ADC) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
3.10.1 Temperature sensor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
3.11
3.10.2 Internal voltage reference (VREFINT) . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
3.10.3 VBAT battery voltage monitoring . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
Digital-to-analog converter (DAC) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
3.12 Comparators (COMP) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
3.13 Touch sensing controller (TSC) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
3.14 Timers and watchdogs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
3.14.1 Advanced-control timer (TIM1) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
3.14.2 General-purpose timers (TIM2, 3, 14, 15, 16, 17) . . . . . . . . . . . . . . . . . 22
3.14.3 Basic timer TIM6 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
3.14.4 Independent watchdog (IWDG) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
3.14.5 System window watchdog (WWDG) . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
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STM32F051x4 STM32F051x6 STM32F051x8
Contents
3.14.6 SysTick timer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
3.15 Real-time clock (RTC) and backup registers . . . . . . . . . . . . . . . . . . . . . . 23
3.16 Inter-integrated circuit interface (I2C) . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
3.17 Universal synchronous/asynchronous receiver/transmitter (USART) . . . 25
3.18 Serial peripheral interface (SPI) / Inter-integrated sound interface (I2S) . 26
3.19 High-definition multimedia interface (HDMI) - consumer
electronics control (CEC) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26
3.20 Serial wire debug port (SW-DP) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26
4 Pinouts and pin descriptions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27
5 Memory mapping . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39
6 Electrical characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42
6.1 Parameter conditions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42
6.1.1 Minimum and maximum values . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42
6.1.2 Typical values . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42
6.1.3 Typical curves . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42
6.1.4 Loading capacitor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42
6.1.5 Pin input voltage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42
6.1.6 Power supply scheme . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 43
6.1.7 Current consumption measurement . . . . . . . . . . . . . . . . . . . . . . . . . . . 44
6.2 Absolute maximum ratings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45
6.3 Operating conditions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 47
6.3.1 General operating conditions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 47
6.3.2 Operating conditions at power-up / power-down . . . . . . . . . . . . . . . . . . 47
6.3.3 Embedded reset and power control block characteristics . . . . . . . . . . . 48
6.3.4 Embedded reference voltage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 49
6.3.5 Supply current characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 49
6.3.6 Wakeup time from low-power mode . . . . . . . . . . . . . . . . . . . . . . . . . . . 59
6.3.7 External clock source characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . 59
6.3.8 Internal clock source characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . 63
6.3.9 PLL characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 66
6.3.10 Memory characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 66
6.3.11 EMC characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 67
6.3.12 Electrical sensitivity characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . 68
6.3.13 I/O current injection characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . 69
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Contents
STM32F051x4 STM32F051x6 STM32F051x8
6.3.14
6.3.15
6.3.16
6.3.17
6.3.18
6.3.19
6.3.20
6.3.21
6.3.22
I/O port characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 70
NRST pin characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 75
12-bit ADC characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 76
DAC electrical specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 80
Comparator characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 82
Temperature sensor characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . 84
VBAT monitoring characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 84
Timer characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 84
Communication interfaces . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 85
7 Package information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 91
7.1 UFBGA64 package information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 91
7.2 LQFP64 package information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 94
7.3 LQFP48 package information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 97
7.4 UFQFPN48 package information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 100
7.5 WLCSP36 package information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 103
7.6 LQFP32 package information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 106
7.7 UFQFPN32 package information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 108
7.8 Thermal characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .112
7.8.1 Reference document . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 112
7.8.2 Selecting the product temperature range . . . . . . . . . . . . . . . . . . . . . . 112
8 Part numbering . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 115
9 Revision history . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 116
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