STM32F446xC/E
ARM
®
Cortex
®
-M4 32b MCU+FPU, 225DMIPS, up to 512kB Flash/128+4KB RAM,
USB OTG HS/FS, 17 TIMs, 3 ADCs, 20 comm. interfaces
Datasheet
-
production data
Features
•
Core: ARM
®
32-bit Cortex
®
-M4 CPU with FPU,
Adaptive real-time accelerator (ART
Accelerator™) allowing 0-wait state execution
from Fl ash memory, frequency up to 180 MHz,
MPU, 225 DMIPS/1.25 DMIPS/MHz
(Dhrystone 2.1), and DSP instructions
•
Memories
– 512 kB of Flash memory
– 128 KB of SRAM
– Flexible external memory controller with up
to 16-bit data bus:
SRAM,PSRAM,SDRAM/LPSDR SDRAM,
Flash NOR/NAND memories
– Dual mode Quad SPI interface
•
LCD parallel interface, 8080/6800 modes
•
Clock, reset and supply management
– 1.7 V to 3.6 V application supply and I/Os
– POR, PDR, PVD and BOR
– 4-to-26 MHz crystal oscillator
– Internal 16 MHz factory-trimmed RC (1%
accuracy)
– 32 kHz oscillator for RTC with calibration
– Internal 32 kHz RC with calibration
•
Low power
– Sleep, Stop and Standby modes
– V
BAT
supply for RTC, 20×32 bit backup
registers + optional 4 KB backup SRAM
•
3×12-bit, 2.4 MSPS ADC: up to 24 channels
and 7.2 MSPS in triple interleaved mode
•
2×12-bit D/A converters
•
General-purpose DMA: 16-stream DMA
controller with FIFOs and burst support
•
Up to 17 timers: 2x watchdog, 1x SysTick timer
and up to twelve 16-bit and two 32-bit timers up
to 180 MHz, each with up to 4 IC/OC/PWM or
pulse counter
•
Debug mode
– SWD & JTAG interfaces
– Cortex
®
-M4 Trace Macrocell™
LQFP64 (10 × 10mm)
LQFP100 (14 × 14mm) UFBGA144 (7 x 7 mm)
LQFP144 (20 x 20 mm) UFBGA144 (10 x 10 mm)
WLCSP 81
•
Up to 114 I/O ports with interrupt capability
– Up to 111 fast I/Os up to 90 MHz
– Up to 112 5 V-tolerant I/Os
•
Up to 20 communication interfaces
– SPDIF-Rx
– Up to 4 × I
2
C interfaces (SMBus/PMBus)
– Up to 4 USARTs/2 UARTs (11.25 Mbit/s,
ISO7816 interface, LIN, IrDA, modem
control)
– Up to 4 SPIs (45 Mbits/s), 3 with muxed I
2
S
for audio class accuracy via internal audio
PLL or external clock
– 2 x SAI (serial audio interface)
– 2 × CAN (2.0B Active)
– SDIO interface
– Consumer electronics control (CEC) I/F
•
Advanced connectivity
– USB 2.0 full-speed device/host/OTG
controller with on-chip PHY
– USB 2.0 high-speed/full-speed
device/host/OTG controller with dedicated
DMA, on-chip full-speed PHY and ULPI
– Dedicated USB power rail enabling on-chip
PHYs operation throughout the entire MCU
power supply range
•
8- to 14-bit parallel camera interface up to
54 Mbytes/s
•
CRC calculation unit
•
RTC: subsecond accuracy, hardware calendar
•
96-bit unique ID
Table 1. Device summary
Reference
Part number
STM32F446MC, STM32F446ME,
STM32F446RC, STM32F446RE,
STM32F446VC, STM32F446VE,
STM32F446ZC, STM32F446ZE.
STM32F446xC/E
November 2015
This is information on a product in full production.
DocID027107 Rev 5
1/201
www.st.com
Contents
STM32F446xC/E
Contents
1
2
Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
2.1
Compatibility with STM32F4 family . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
3
Functional overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
3.1
3.2
3.3
3.4
3.5
3.6
3.7
3.8
3.9
3.10
3.11
3.12
3.13
3.14
3.15
3.16
ARM
®
Cortex
®
-M4 with FPU and embedded Flash and SRAM . . . . . . . 17
Adaptive real-time memory accelerator (ART Accelerator™) . . . . . . . . . 17
Memory protection unit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
Embedded Flash memory . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
CRC (cyclic redundancy check) calculation unit . . . . . . . . . . . . . . . . . . . 18
Embedded SRAM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
Multi-AHB bus matrix . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
DMA controller (DMA) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
Flexible memory controller (FMC) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
Quad SPI memory interface (QUADSPI) . . . . . . . . . . . . . . . . . . . . . . . . . 20
Nested vectored interrupt controller (NVIC) . . . . . . . . . . . . . . . . . . . . . . . 21
External interrupt/event controller (EXTI) . . . . . . . . . . . . . . . . . . . . . . . . . 21
Clocks and startup . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
Boot modes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
Power supply schemes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
Power supply supervisor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
3.16.1
3.16.2
Internal reset ON . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
Internal reset OFF . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
Regulator ON . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
Regulator OFF . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25
Regulator ON/OFF and internal reset ON/OFF availability . . . . . . . . . . 27
3.17
Voltage regulator . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
3.17.1
3.17.2
3.17.3
3.18
3.19
3.20
3.21
Real-time clock (RTC), backup SRAM and backup registers . . . . . . . . . . 28
Low-power modes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29
V
BAT
operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29
Timers and watchdogs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31
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3.21.1
3.21.2
3.21.3
3.21.4
3.21.5
3.21.6
Contents
Advanced-control timers (TIM1, TIM8) . . . . . . . . . . . . . . . . . . . . . . . . . 32
General-purpose timers (TIMx) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32
Basic timers TIM6 and TIM7 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32
Independent watchdog . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33
Window watchdog . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33
SysTick timer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33
3.22
3.23
3.24
3.25
3.26
3.27
3.28
3.29
3.30
3.31
3.32
3.33
3.34
3.35
3.36
3.37
3.38
3.39
3.40
3.41
Inter-integrated circuit interface (I
2
C) . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33
Universal synchronous/asynchronous receiver transmitters (USART) . . 34
Serial peripheral interface (SPI) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34
HDMI (high-definition multimedia interface) consumer
electronics control (CEC) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35
Inter-integrated sound (I
2
S) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35
SPDIF-RX Receiver Interface (SPDIFRX) . . . . . . . . . . . . . . . . . . . . . . . . 35
Serial Audio interface (SAI) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36
Audio PLL (PLLI2S) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36
Serial Audio Interface PLL(PLLSAI) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36
Secure digital input/output interface (SDIO) . . . . . . . . . . . . . . . . . . . . . . . 36
Controller area network (bxCAN) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37
Universal serial bus on-the-go full-speed (OTG_FS) . . . . . . . . . . . . . . . . 37
Universal serial bus on-the-go high-speed (OTG_HS) . . . . . . . . . . . . . . . 37
Digital camera interface (DCMI) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38
General-purpose input/outputs (GPIOs) . . . . . . . . . . . . . . . . . . . . . . . . . . 38
Analog-to-digital converters (ADCs) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38
Temperature sensor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39
Digital-to-analog converter (DAC) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39
Serial wire JTAG debug port (SWJ-DP) . . . . . . . . . . . . . . . . . . . . . . . . . . 39
Embedded Trace Macrocell™ . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40
4
5
6
Pinout and pin description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41
Memory mapping . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 67
Electrical characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 72
6.1
Parameter conditions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 72
6.1.1
Minimum and maximum values . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 72
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6.1.2
6.1.3
6.1.4
6.1.5
6.1.6
6.1.7
STM32F446xC/E
Typical values . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 72
Typical curves . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 72
Loading capacitor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 72
Pin input voltage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 72
Power supply scheme . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 73
Current consumption measurement . . . . . . . . . . . . . . . . . . . . . . . . . . . 74
6.2
6.3
Absolute maximum ratings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 74
Operating conditions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 76
6.3.1
6.3.2
6.3.3
6.3.4
6.3.5
6.3.6
6.3.7
6.3.8
6.3.9
6.3.10
6.3.11
6.3.12
6.3.13
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
6.3.23
6.3.24
6.3.25
6.3.26
6.3.27
6.3.28
6.3.29
General operating conditions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 76
VCAP_1/VCAP_2 external capacitor . . . . . . . . . . . . . . . . . . . . . . . . . . . 78
Operating conditions at power-up / power-down (regulator ON) . . . . . . 79
Operating conditions at power-up / power-down (regulator OFF) . . . . . 79
Reset and power control block characteristics . . . . . . . . . . . . . . . . . . . 80
Over-drive switching characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . 81
Supply current characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 81
Wakeup time from low-power modes . . . . . . . . . . . . . . . . . . . . . . . . . . 101
External clock source characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . 102
Internal clock source characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . 106
PLL characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 108
PLL spread spectrum clock generation (SSCG) characteristics . . . . . 110
Memory characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 112
EMC characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 114
Absolute maximum ratings (electrical sensitivity) . . . . . . . . . . . . . . . . 116
I/O current injection characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . 117
I/O port characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 118
NRST pin characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 123
TIM timer characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 124
Communications interfaces . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 124
12-bit ADC characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 141
Temperature sensor characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . 147
V
BAT
monitoring characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 148
Reference voltage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 148
DAC electrical characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 148
FMC characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 151
Camera interface (DCMI) timing specifications . . . . . . . . . . . . . . . . . . 171
SD/SDIO MMC card host interface (SDIO) characteristics . . . . . . . . . 172
RTC characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 174
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Package information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 175
7.1
7.2
7.3
7.4
7.5
7.6
7.7
LQFP64 package information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 175
LQFP100 package information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 178
LQFP144 package information. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 181
UFBGA144 7 x 7 mm package information . . . . . . . . . . . . . . . . . . . . . . 185
UFBGA144 10 x 10 mm package information . . . . . . . . . . . . . . . . . . . . 188
WLCSP81 package information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 191
Thermal characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 194
8
Part numbering . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 195
Appendix A Application block diagrams . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 196
A.1
A.2
USB OTG full speed (FS) interface solutions . . . . . . . . . . . . . . . . . . . . . 196
USB OTG high speed (HS) interface solutions . . . . . . . . . . . . . . . . . . . . 198
9
Revision history . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 199
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