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STM32F446数据手册

STM32F446数据手册
STM32F446数据手册

STM32F446xx
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
Data brief
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 – VBAT 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 × I2C 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 I2S 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.
STM32F446xx
December 2014
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https://www.sodocs.net/doc/445394535.html,
For further information contact your local STMicroelectronics sales office.

Contents
STM32F446xx
Contents
1 2 Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
2.1 Compatibility with STM32F4 family . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
3
Functional overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
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 . . . . . . . 13 Adaptive real-time memory accelerator (ART Accelerator?) . . . . . . . . . 13 Memory protection unit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13 Embedded Flash memory . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14 CRC (cyclic redundancy check) calculation unit . . . . . . . . . . . . . . . . . . . 14 Embedded SRAM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14 Multi-AHB bus matrix . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14 DMA controller (DMA) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15 Flexible memory controller (FMC) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16 Quad SPI memory interface (QUADSPI) . . . . . . . . . . . . . . . . . . . . . . . . . 16 Nested vectored interrupt controller (NVIC) . . . . . . . . . . . . . . . . . . . . . . . 17 External interrupt/event controller (EXTI) . . . . . . . . . . . . . . . . . . . . . . . . . 17 Clocks and startup . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17 Boot modes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18 Power supply schemes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18 Power supply supervisor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
3.16.1 3.16.2 Internal reset ON . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18 Internal reset OFF . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18 Regulator ON . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20 Regulator OFF . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21 Regulator ON/OFF and internal reset ON/OFF availability . . . . . . . . . . 23
3.17
Voltage regulator . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
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 . . . . . . . . . . 23 Low-power modes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24 VBAT operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25 Timers and watchdogs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25
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Contents Advanced-control timers (TIM1, TIM8) . . . . . . . . . . . . . . . . . . . . . . . . . 27 General-purpose timers (TIMx) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27 Basic timers TIM6 and TIM7 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27 Independent watchdog . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28 Window watchdog . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28 SysTick timer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28
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 (I2C) . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28 Universal synchronous/asynchronous receiver transmitters (USART) . . 29 Serial peripheral interface (SPI) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29 HDMI (high-definition multimedia interface) consumer electronics control (CEC) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30 Inter-integrated sound (I2S) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30 SPDIF-RX Receiver Interface (SPDIF-RX) . . . . . . . . . . . . . . . . . . . . . . . 30 Serial Audio interface (SAI) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31 Audio PLL (PLLI2S) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31 Serial Audio Interface PLL(PLLSAI) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31 Secure digital input/output interface (SDIO) . . . . . . . . . . . . . . . . . . . . . . . 31 Controller area network (bxCAN) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32 Universal serial bus on-the-go full-speed (OTG_FS) . . . . . . . . . . . . . . . . 32 Universal serial bus on-the-go high-speed (OTG_HS) . . . . . . . . . . . . . . . 32 Digital camera interface (DCMI) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33 General-purpose input/outputs (GPIOs) . . . . . . . . . . . . . . . . . . . . . . . . . . 33 Analog-to-digital converters (ADCs) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33 Temperature sensor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34 Digital-to-analog converter (DAC) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34 Serial wire JTAG debug port (SWJ-DP) . . . . . . . . . . . . . . . . . . . . . . . . . . 34 Embedded Trace Macrocell? . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35
4 5 6
Pinout and pin description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36 Memory mapping . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 62 Package characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 67
6.1 6.2 Package mechanical data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 67 Thermal characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 79
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STM32F446xx
7
Part numbering . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 80
Appendix A Application block diagrams . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 81
A.1 A.2 USB OTG full speed (FS) interface solutions . . . . . . . . . . . . . . . . . . . . . . 81 USB OTG high speed (HS) interface solutions . . . . . . . . . . . . . . . . . . . . . 83
8
Revision history . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 84
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STM32F446xx
List of figures
List of figures
Figure 1. Figure 2. Figure 3. Figure 4. Figure 5. Figure 6. Figure 7. Figure 8. Figure 9. Figure 10. Figure 11. Figure 12. Figure 13. Figure 14. Figure 15. Figure 16. Figure 17. Figure 18. Figure 19. Figure 20. Figure 21. Figure 22. Figure 23. Figure 24. Figure 25. Figure 26. Compatible board design for LQFP100 package . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10 Compatible board for LQFP64 package . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11 STM32F466xx block diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12 STM32F446xx and Multi-AHB matrix . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15 Power supply supervisor interconnection with internal reset OFF . . . . . . . . . . . . . . . . . . . 19 Regulator OFF . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21 Startup in regulator OFF: slow VDD slope power-down reset risen after VCAP_1/VCAP_2 stabilization . . . . . . . . . . . . . . . . . . . . . . . . . 22 Startup in regulator OFF mode: fast VDD slope power-down reset risen before VCAP_1/VCAP_2 stabilization. . . . . . . . . . . . . . . . . . . . . . . . 22 STM32F446xC/xE LQFP64 pinout . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36 STM32F446xC/xE LQFP100 pinout . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37 STM32F446xC LQFP144 pinout . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38 STM32F446xC/xE WLCSP81 ballout . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39 STM32F446xC/xE UFBGA144 ballout . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40 Memory map . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 62 LQFP64-10x10 mm 64 pin low-profile quad flat package outline . . . . . . . . . . . . . . . . . . . . 67 LQFP100, 14 x 14 mm 100-pin low-profile quad flat package outline . . . . . . . . . . . . . . . . 69 LQPF100 recommended footprint . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 70 LQFP144, 20 x 20 mm, 144-pin low-profile quad flat package outline . . . . . . . . . . . . . . . . 71 LQFP144 recommended footprint . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 73 UFBGA144, 7x7x0.60 R12x12 P 0.5mm, package outline . . . . . . . . . . . . . . . . . . . . . . . . . 74 UFBGA144 - 10 x 10 x 0.6 mm, 0.8 pitch package outline . . . . . . . . . . . . . . . . . . . . . . . . . 76 WLCSP81 - 0.4 mm pitch package outline . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 78 USB controller configured as peripheral-only and used in Full speed mode . . . . . . . . . . . 81 USB controller configured as host-only and used in full speed mode. . . . . . . . . . . . . . . . . 81 USB controller configured in dual mode and used in full speed mode . . . . . . . . . . . . . . . . 82 USB controller configured as peripheral, host, or dual-mode and used in high speed mode. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 83
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List of tables
STM32F446xx
List of tables
Table 1. Table 2. Table 3. Table 4. Table 5. Table 6. Table 7. Table 8. Table 9. Table 10. Table 11. Table 12. Table 13. Table 14. Table 15. Table 16. Table 17. Table 18. Table 19. Table 20. Table 21. Device summary . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 STM32F446x features and peripheral counts. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9 Voltage regulator configuration mode versus device operating mode . . . . . . . . . . . . . . . . 20 Regulator ON/OFF and internal reset ON/OFF availability. . . . . . . . . . . . . . . . . . . . . . . . . 23 Voltage regulator modes in stop mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24 Timer feature comparison . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25 Comparison of I2C analog and digital filters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28 USART feature comparison . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29 Legend/abbreviations used in the pinout table . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41 STM32F446xx pin and ball descriptions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41 Alternate function . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 54 STM32F446xx and register boundary addresses . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 63 LQFP64 – 10 x 10 mm low-profile quad flat package mechanical data . . . . . . . . . . . . . . . 68 LQPF100, 14 x 14 mm 100-pin low-profile quad flat package mechanical data. . . . . . . . . 69 LQFP144, 20 x 20 mm, 144-pin low-profile quad flat package mechanical data . . . . . . . . 72 UFBGA144, 7 x 7 x 0.60 R12x12 P 0.5 mm, 144-pin package mechanical data . . . . . . . . 74 UFBGA144 - 10 x 10 x 0.6 mm, 0.8 pitch, 144-pin package mechanical data . . . . . . . . . . 76 WLCSP81 - 0.4 mm pitch package mechanical data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 78 Package thermal characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 79 Ordering information scheme . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 80 Document revision history . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 84
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STM32F446xx
Introduction
1
Introduction
This databrief provides the description of the STM32F446xx line of microcontrollers. The STM32F446xx databrief should be read in conjunction with the STM32F4xx reference manual. For information on the Cortex?-M4 core, please refer to the Cortex?-M4 programming manual (PM0214), available from the https://www.sodocs.net/doc/445394535.html,.
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Description
STM32F446xx
2
Description
The STM32F446xx devices are based on the high-performance ARM? Cortex?-M4 32-bit RISC core operating at a frequency of up to 180 MHz. The Cortex-M4 core features a Floating point unit (FPU) single precision which supports all ARM? single-precision dataprocessing instructions and data types. It also implements a full set of DSP instructions and a memory protection unit (MPU) which enhances application security. The STM32F446xx devices incorporate high-speed embedded memories (Flash memory up to 512 Kbyte, up to 128 Kbyte of SRAM), up to 4 Kbytes of backup SRAM, and an extensive range of enhanced I/Os and peripherals connected to two APB buses, two AHB buses and a 32-bit multi-AHB bus matrix. All devices offer three 12-bit ADCs, two DACs, a low-power RTC, twelve general-purpose 16-bit timers including two PWM timers for motor control, two general-purpose 32-bit timers. They also feature standard and advanced communication interfaces. ? ? Up to four I2Cs; Four SPIs, three I2Ss full simplex. To achieve audio class accuracy, the I2S peripherals can be clocked via a dedicated internal audio PLL or via an external clock to allow synchronization; Four USARTs plus two UARTs; An USB OTG full-speed and an USB OTG high-speed with full-speed capability (with the ULPI), both with dedicated power rails allowing to use them throughout the entire power range; Two CANs; Two SAIs serial audio interfaces. To achieve audio class accuracy, the SAIs can be clocked via a dedicated internal audio PLL; An SDIO/MMC interface; Camera interface; HDMI-CEC; SPDIF-Rx; QuadSPI.
? ?
? ? ? ? ? ? ?
Advanced peripherals include an SDIO, a flexible memory control (FMC) interface, a camera interface for CMOS sensors. Refer to Table 2: STM32F446x features and peripheral counts for the list of peripherals available on each part number. The STM32F446xx and devices operates in the –40 to +105 °C temperature range from a 1.7 to 3.6 V power supply. The supply voltage can drop to 1.7 V with the use of an external power supply supervisor (refer to Section 3.16.2: Internal reset OFF). A comprehensive set of power-saving mode allows the design of low-power applications. The STM32F446xx devices offer devices in 6 packages ranging from 64 pins to 144 pins. The set of included peripherals changes with the device chosen.
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Description
These features make the STM32F446xxmicrocontrollers suitable for a wide range of applications: ? ? ? ? ? ? Motor drive and application control Medical equipment Industrial applications: PLC, inverters, circuit breakers Printers, and scanners Alarm systems, video intercom, and HVAC Home audio appliances Table 2. STM32F446x features and peripheral counts
Peripherals Flash memory in Kbytes SRAM in Kbytes System Backup No 10 2 2 4/2 (simplex)(2) 4 4/2 Yes Yes 2 2 Yes 1 1 1 Yes 63 50 2 14 16 Yes 2 180 MHz 1.8 to 3.6 V(3) Ambient temperatures: –40 to +85 °C /–40 to +105 °C Junction temperature: –40 to + 125 °C WLCSP81 LQFP64 LQFP100 LQFP144 UFBGA144 16 81 114 3 24 STM32F44 6MC 256 STM32F44 6ME 512 STM32F44 6RC 256 STM32F44 6RE 512 STM32F44 6VC 256 STM32F44 6VE 512 STM32F44 6ZC 256 STM32F44 6ZE 512
128 (112+16) 4 Yes(1)
FMC memory controller Generalpurpose Timers Advancedcontrol Basic SPI / I2S I2C USART/UART USB OTG FS USB OTG HS Communication CAN interfaces SAI SDIO SPDIF-Rx HDMI-CEC Quad SPI Camera interface GPIOs 12-bit ADC Number of channels 12-bit DAC Number of channels Maximum CPU frequency Operating voltage Operating temperatures
Packages
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Description
STM32F446xx
1.
For the LQFP100 package, only FMC Bank1 or Bank2 are available. Bank1 can only support a multiplexed NOR/PSRAM memory using the NE1 Chip Select. Bank2 can only support a 16- or 8-bit NAND Flash memory using the NCE2 Chip Select. The interrupt line cannot be used since Port G is not available in this package. The SPI1, SPI2 and SPI3 interfaces give the flexibility to work in an exclusive way in either the SPI mode or the I2S audio mode. VDD/VDDA minimum value of 1.7 V is obtained when the device operates in reduced temperature range, and with the use of an external power supply supervisor (refer to Section 3.16.2: Internal reset OFF).
2. 3.
2.1
Compatibility with STM32F4 family
The STM32F446xC/xV is software and feature compatible with the STM32F4 family. The STM32F446xC/xV can be used as drop-in replacement of the other STM32F4 products but some slight changes have to be done on the PCB board. Figure 1. Compatible board design for LQFP100 package
670)670)OLQH 670)670)OLQH 670)670)OLQH 670)670)OLQH
670)[[
        3' 3' 3' 3' 3% 3% 3%  3%         3' 3' 3' 3' 3% 3% 3%  3%
3%QRWDYDLODEOHDQ\PRUH  5HSODFHGE\9 &$3
         
3( 3( 3( 3( 3( 3( 3% 3% 9&$3 9''
966 9'' 966 9''
3( 3( 3( 3( 3( 3( 3% 9&$3 966 9''
         
069
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STM32F446xx Figure 2. Compatible board for LQFP64 package
Description
670)670)OLQH
3& 3& 3& 3$ 3$
670)[[
3& 3& 3& 3$ 3$
                         
3% 9&$3 9'' 3% 3%
9'' 9&$3 3$ 3$ 3$ 3$ 3$ 3$ 3& 3& 3& 3& 3% 3% 3% 3%
9''
966
                 3%QRWDYDLODEOHDQ\PRUH  5HSODFHGE\9&$3        
3% 3% 9&$3 966 9''
9'' 966 3$ 3$ 3$ 3$ 3$ 3$ 3& 3& 3& 3& 3% 3% 3% 3%
9''
966
9LQFUHDVHGWR?I &$3 (65?RUEHORZ 966 9'' 966 9''
069
Figure 3 shows the STM32F446xx block diagram.
DocID026062 Rev 4
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Description Figure 3. STM32F466xx block diagram
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