STM32F446RC

List of figures

Manufacturer

STMicroelectronics

Overview

Part: STM32F446xx

Type: ARM® Cortex®-M4 32b MCU+FPU

Key Specs:

Core: ARM® 32-bit Cortex®-M4 CPU with FPU
Max Frequency: 180 MHz
Performance: 225 DMIPS / 1.25 DMIPS/MHz (Dhrystone 2.1)
Flash Memory

Features

Core: ARM^® 32-bit Cortex^®-M4 CPU with FPU, Adaptive real-time accelerator (ART Accelerator^™) allowing 0-wait state execution from FI 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™

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
STM32F446xx	STM32F446MC, STM32F446ME, STM32F446RC, STM32F446RE, STM32F446VC, STM32F446VE, STM32F446ZC, STM32F446ZE.

Contents STM32F446xx

Pin Configuration

Figure 9. STM32F446xC/xE LQFP64 pinout

The above figure shows the package top view.

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Figure 10. STM32F446xC/xE LQFP100 pinout

The above figure shows the package top view.

Figure 11. STM32F446xC LQFP144 pinout

The above figure shows the package top view.

Figure 12. STM32F446xC/xE WLCSP81 ballout

The above figure shows the package top view.

Figure 13. STM32F446xC/xE UFBGA144 ballout

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The above picture shows the package top view.

Table 9. Legend/abbreviations used in the pinout table

Name	Abbreviation	Definition
Pin name		Unless otherwise specified in brackets below the pin name, the pin function during and after reset is the same as the actual pin name
	S	Supply pin
Pin type	I	Input only pin
	I/O	Input / output pin
	FT	5 V tolerant I/O
I/O structure	TTa	3.3 V tolerant I/O directly connected to ADC
	B Dedicated BOOT0 pin
	RST	Bidirectional reset pin with weak pull-up resistor
Notes		Unless otherwise specified by a note, all I/Os are set as floating inputs during and after reset
Alternate Functions selected through GPIOx_AFR registers functions
Additional functions	Functions directly selected/enabled through peripheral registers

	Pin Number
LQFP64	LQFP100
-	1
-	2
-	3
-	4

	Pin Number
LQFP64	LQFP100
-	5
1	6
2	7
3	8
4	9
-	-
-	-
-	-
-	-
-	-
-	-
-	10
-	11
-	-
-	-
-	-
-	-
-	-
5	12

Table 10. STM32F446xx pin and ball descriptions (continued)

	Pin Number
LQFP64	LQFP100
6	13
7	14
8	15
9	16
10	17
11	18
-	19
-	-
12	20
-	-
-	21
13	22
14	23
15	24
16	25

![](_page₄2_Picture₄.jpeg)

Table 10. STM32F446xx pin and ball descriptions (continued)

		Pin Number
LQFP64	LQFP100	WLCSP 81
17	26	E6
18	27	-
-	-	J8
19	28	-
20	29	H7
21	30	F6
22	31	G6
23	32	E5
24	33	J7
25	34	-

Table 10. STM32F446xx pin and ball descriptions (continued)

	Pin Number
LQFP64	LQFP100
26	35
27	36
28	37
-	-
-	-
-	-
-	-
-	-
-	-
-	-
-	-
-	-
-	38
-	39
-	40

Table 10. STM32F446xx pin and ball descriptions (continued)

	Pin Number
LQFP64	LQFP100
-	-
-	-
-	41
-	42
-	43
-	44
-	45
-	46
29	47
-	-
30	48
31	49
32	50
33	51

	Pin Number
LQFP64	LQFP100
34	52
35	53
36	54
-	55
-	56
-	57
-	58
-	59
-	60
-	-
-	-

Table 10. STM32F446xx pin and ball descriptions (continued)

		Pin Number
LQFP64	LQFP100	WLCSP 81
-	61	-
-	62	-
-	-	-
-	-	-
-	-	-
-	-	-
-	-	-
-	-	-
-	-	-
-	-	-
-	-	-
-	-	E1
37	63	F1
38	64	F2
39	65	F3

		Pin Number
LQFP64	LQFP100	WLCSP 81
40	66	D1
41	67	E2
42	68	F4
43	69	E3
44	70	C1
45	71	E4
46	72	D2
-	73	C2
47	74	B1
48	75	A1
49	76	C3
50	77	B2

Table 10. STM32F446xx pin and ball descriptions (continued)

		Pin Number
LQFP64	LQFP100	WLCSP 81
51	78	D3
52	79	D4
53	80	A2
-	81	B3
-	82	C4
54	83	D5
-	84	-
-	85	A3
-	86	-
-	-	-
-	-	-

	Pin Number
LQFP64	LQFP100
-	87
-	88
-	-
-	-
-	-
-	-
-	-
-	-
-	-
-	-
-	-
55	89

Table 10. STM32F446xx pin and ball descriptions (continued)

		Pin Number
LQFP64	LQFP100	WLCSP 81
56	90	B5
57	91	A6
58	92	C5
59	93	B6
60	94	A7
61	95	C6
62	96	C7
-	97	-
-	98	-
63	99	B7

		Pin Number
LQFP64	LQFP100	WLCSP 81
-	-	B8
64	100	A8

Table 11. Alternate function

		AF0	AF1	AF2	AF3	AF4	AF5	AF6	AF7	AF8	AF9	AF10	AF11	AF12	AF13	AF14	AF15
Po	ort	SYS	TIM1/2	TIM3/4/5	TIM8/9/ 10/11/ CEC	I2C1/2/3 /4/CEC	SPI1/2/3/4	SPI2/3/4/ SAI1	SPI2/3/ USART1/2 /3/UART5/ SPDIF	SA12/U SART6/ UART4/ 5/SDIP	CAN1/2 TIM12/13/ 14/ QUADSPI	SAI2/QUA DSPI/ OTG2_HS/ OTG1_FS	OTG1_FS	FMC/ SDIO/ OTG2_FS	DCMI		sys
	PA0	-	TIM2_CH1/ TIM2_ETR	TIM5_CH1	TIM8_ETR	-	-	-	USART2_ CTS	UART4_ TX	-	=	-	-	-	-	EVENT OUT
	PA1	-	TIM2_CH2	TIM5_CH2	-	-	-	-	USART2_ RTS	UART4_ RX	QUADSPI_ BK1_IO3	SAI2_ MCLK_B	-	-	-	-	EVENT OUT
	PA2	-	TIM2_CH3	TIM5_CH3	TIM9_CH1	-	-	-	USART2_ TX	SAI2_ SCK_B	-	-	-	-	-	-	EVENT OUT
	PA3	-	TIM2_CH4	TIM5_CH4	TIM9_CH2	-	-	SAI1_ FS_A	USART2_ RX	-	-	OTG_HS_ ULPI_D0	-	-	-	-	EVENT OUT
	PA4	-	-	-	-	-	SPI1_NSS/I 2S1_WS	SPI3_NSS / I2S3_WS	USART2_ CK	-	-	-	-	OTG_HS_ SOF	DCMI_ HSYNC	-	EVENT OUT
	PA5	-	TIM2_CH1/ TIM2_ETR	-	TIM8_ CH1N	-	SPI1_SCK/I 2S1_CK	-	-	-	-	OTG_HS_ ULPI_CK	-	-	-	-	EVENT OUT
	PA6	-	TIM1_ BKIN	TIM3_CH1	TIM8_ BKIN	-	SPI1_MISO	I2S2_ MCK	-	-	TIM13_CH1	-	-	-	DCMI_ PIXCLK	-	EVENT OUT
Port A	PA7	-	TIM1_ CH1N	TIM3_CH2	TIM8_ CH1N	-	SPI1_MOSI/ I2S1_SD	-	-	-	TIM14_CH1	-	-	FMC_ SDNWE	-	-	EVENT OUT
	PA8	MCO1	TIM1_CH1	-	-	I2C3_ SCL	-	-	USART1_ CK	-	-	OTG_FS_ SOF	-	-	-	-	EVENT OUT
	PA9	-	TIM1_CH2	-	-	I2C3_ SMBA	SPI2_SCK /I2S2_CK	SAI1_ SD_B	USART1_ TX	-	-	-	-	-	DCMI_D0	-	EVENT OUT
	PA10	-	TIM1_CH3	-	-	-	-	-	USART1_ RX	-	-	OTG_FS_ ID	-	-	DCMI_D1	-	EVENT OUT
	PA11	-	TIM1_CH4	-	-	-	-	-	USART1_ CTS	-	CAN1_RX	OTG_FS_ DM	-	-	-	-	EVENT OUT
	PA12	-	TIM1_ETR	-	-	-	-	-	USART1_ RTS	SAI2_ FS_B	CAN1_TX	OTG_FS_ DP	-	-	-	-	EVENT OUT
	PA13	JTMS- SWDIO	-	-	-	-	-	-	-	-	-	-	-	-	-	-	EVENT OUT
	PA14	JTCK- SWCLK	-	-	-	-	-	-	-	-	-	-	-	-	-	-	EVENT OUT
	PA15	JTDI	TIM2_CH1/ TIM2_ETR	-	-	HDMI_ CEC	SPI1_NSS/ I2S1_WS	SPI3_ NSS/ I2S3_WS	-	UART4_ RTS	-	-	-	-	-	-	EVENT OUT

Pinout and pin description

Table 11. Alternate function (continued)

		AF0	AF1	AF2	AF3	AF4	AF5	AF6	AF7	AF8	AF9	AF10	AF11	AF12	AF13	AF14	AF15
Po	ort	sys	TIM1/2	TIM3/4/5	TIM8/9/ 10/11/ CEC	I2C1/2/3 /4/CEC	SPI1/2/3/4	SPI2/3/4/ SAI1	SPI2/3/ USART1/2 /3/UART5/ SPDIF	SA12/U SART6/ UART4/ 5/SDIP	CAN1/2 TIM12/13/ 14/ QUADSPI	SAI2/QUA DSPI/ OTG2_HS/ OTG1_FS	OTG1_FS	FMC/ SDIO/ OTG2_FS	DCMI		sys
	PB0	-	TIM1_CH2N	TIM3_CH3	TIM8_ CH2N	-	-	-	SPI3_MOSI/ I2S3_SD	UART4_ CTS	-	OTG_HS_ ULPI_D1	-	SDIO_D1	-	-	EVENT OUT
	PB1	-	TIM1_CH3N	TIM3_CH4	TIM8_ CH3N	-	-	-	-	-	-	OTG_HS_ ULPI_D2	-	SDIO_D2	-	-	EVENT OUT
	PB2	-	TIM2_CH4	-	-	-	-	SAI1_ SD_A	SPI3_MOSI/ I2S3_SD	-	QUADSPI_ CLK	OTG_HS_ ULPI_D4	-	SDIO_CK	-	-	EVENT OUT
	PB3	JTDO/ TRACES WO	TIM2_CH2	-	-	I2C2_ SDA	SPI1_SCK /I2S1_CK	SPI3_SCK / I2S3_CK	-	-	-	-	-	-	-	-	EVENT OUT
	PB4	NJTRST	-	TIM3_CH1	-	I2C3_ SDA	SPI1_MISO	SPI3_ MISO	SPI2_NSS/ I2S2_WS	-	-	-	-	-	-	-	EVENT OUT
	PB5	-	-	TIM3_CH2	-	I2C1_ SMBA	SPI1_MOSI /I2S1_SD	SPI3_ MOSI/ I2S3_SD	-	-	CAN2_RX	OTG_HS_ ULPI_D7	-	FMC_ SDCKE1	DCMI_ D10	-	EVENT OUT
	PB6	-	-	TIM4_CH1	HDMI_ CEC	I2C1_ SCL	-	-	USART1_ TX	-	CAN2_TX	QUADSPI_ BK1_NCS	-	FMC_ SDNE1	DCMI_D5	-	EVENT OUT
Port B	PB7	-	-	TIM4_CH2	-	I2C1_ SDA	-	-	USART1_ RX	SPDIF_ RX0	-	-	-	FMC_NL	DCMI_ VSYNC	-	EVENT OUT
FUILD	PB8	-	TIM2_CH1/ TIM2_ETR	TIM4_CH3	TIM10_ CH1	I2C1_ SCL	-	-	-	-	CAN1_RX	-	-	SDIO_D4	DCMI_D6	-	EVENT OUT
	PB9	-	TIM2_ CH2	TIM4_CH4	TIM11_ CH1	I2C1_ SDA	SPI2_NSS/ I2S2_WS	SAI1_ FS_B	-	-	CAN1_TX	-	-	SDIO_D5	DCMI_D7	-	EVENT OUT
	PB10	-	TIM2_CH3	-	-	I2C2_ SCL	SPI2_SCK/ I2S2_CK	SAI1_ SCK_A	USART3_ TX	-	-	OTG_HS_ ULPI_D3	-	-	-	-	EVENT OUT
	PB11	-	TIM2_CH4	-	-	I2C2_ SDA	-	-	USART3_ RX	SAI2_ SD_A	-	-	-	-	-	-	EVENT OUT
	PB12	-	TIM1_BKIN	-	-	I2C2_ SMBA	SPI2_NSS/ I2S2_WS	SAI1_ SCK_B	USART3_ CK	-	CAN2_RX	OTG_HS_ ULPI_D5	-	OTG_ HS_ID	-	-	EVENT OUT
	PB13	-	TIM1_CH1N	-	-	-	SPI2_SCK/ I2S2_CK	-	USART3_ CTS	-	CAN2_TX	OTG_HS_ ULPI_D6	-	-	-	-	EVENT OUT
	PB14	-	TIM1_CH2N	-	TIM8_ CH2N	-	SPI2_MISO	-	USART3_ RTS	-	TIM12_CH1	-	-	OTG_ HS_DM	-	-	EVENT OUT
	PB15	RTC_ REFIN	TIM1_CH3N	-	TIM8_ CH3N	-	SPI2_MOSI /I2S2_SD	-	-	-	TIM12_CH2	-	-	OTG_ HS_DP	-	-	EVENT OUT

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Table 11. Alternate function (continued)

					1		iabie II.	1		( )	,
		AF0	AF1	AF2	AF3	AF4	AF5	AF6	AF7	AF8	AF9
Po	ort	sys	TIM1/2	TIM3/4/5	TIM8/9/ 10/11/ CEC	I2C1/2/3 /4/CEC	SPI1/2/3/4	SPI2/3/4/ SAI1	SPI2/3/ USART1/2 /3/UART5/ SPDIF	SA12/U SART6/ UART4/ 5/SDIP	CAN1/2 TIM12/13/ 14/ QUADSPI
	PC0	-	-	-	-	-	-	SAI1_ MCLK_B	-	-	-
	PC1	-	-	-	-	-	SPI3_MOSI /I2S3_SD	SAI1_ SD_A	SPI2_MOSI /I2S2_SD	-	-
	PC2	-	-	-	-	-	SPI2_MISO	-	-	-	-
	PC3	-	-	-	-	-	SPI2_MOSI/ I2S2_SD	-	-	-	-
	PC4	-	-	-	-	-	I2S1_MCK	-	-	SPDIF_ RX2	-
	PC5	-	-	-	-	-	-	-	USART3_ RX	SPDIF_ RX3	-
	PC6	-	-	TIM3_CH1	TIM8_CH1	FMPI2C1 _SCL	I2S2_MCK	-	-	USART6 _TX	-
	PC7	-	-	TIM3_CH2	TIM8_CH2	FMPI2C1 _SDA	SPI2_SCK/ I2S2_CK	12S3_MCK	SPDIF_ RX1	USART6 _RX	-
Port C	PC8	TRACE D0	-	TIM3_CH3	TIM8_CH3	-	-	-	UART5_ RTS	USART6 _CK	-
	PC9	MCO2	-	TIM3_CH4	TIM8_CH4	I2C3_ SDA	I2S_CKIN	-	UART5_ CTS	-	QUAD_ BK1_IO0
	PC10	-	-	-	-	-	-	SPI3_SCK / I2S3_CK	USART3_ TX	UART4_ TX	QUAD_ BK1_IO1
	PC11	-	-	-	-	-	-	SPI3_ MISO	USART3_ RX	UART4_ RX	QUAD_ BK2_NCS
	PC12	-	-	-	-	I2C2_ SDA	-	SPI3_ MOSI/ I2S3_SD	USART3_ CK	UART5_ TX	-
	PC13	-	-	-	-	-	-	-	-	-	-
	PC14	-	-	-	-	-	-	-	-	-	-
	PC15	-	-	-	-	-	-	-	-	-	-

		AF 0	AF 1	AF 2	AF 3	AF 4	AF 5	AF 6	AF 7	AF 8	AF 9	AF 10	AF 11	AF 12	AF 13	AF 14	AF 15
Po	rt	SY S	TIM 1/2	TIM 3/4 /5	TIM / 10/ 8/9 11/ CE C	I2C /3 /4/C 1/2 EC	SP I1/2 /3/4	SP /4/ SA I2/3 I1	/ US SP I2/3 T1/ 2 /3/U AR T5/ SP AR DIF	SA 12/ U SA 6/ UA RT 4/ 5/S RT DIP	/2 TIM CA N1 13/ 14/ QU 12/ AD SP I	SA I2/Q UA DS PI/ OT / OT G2 HS G1 FS	OT G1 FS _	C/ SD FM IO/ OT G2 FS _	DC MI		SY S
	PD0	-	-	-	-	-	SP I4_M ISO	3_ MO SPI SI/ I2S 3_S D	-	-	CA N1_ RX	-	-	FM C_D 2	-	-	EVE NT OU T
	PD 1	-	-	-	-	-	-	-	SPI SS/ I2S 2_N 2_W S	-	CA N1_ TX	-	-	FM C_D 3	-	-	EVE NT OU T
	PD2		-	TIM 3_E TR	-	-	-	-	-	UAR T5_ RX	-	-	-	SD IO_ CM D	DC MI_ D11	-	EVE NT OU T
	PD3	TRA CE D1	-	-	-	-	SPI CK/ I2S 2_S 2_C K	-	USA RT2 _ CTS	-	QU AD SPI _ CLK	-	-	FM C_C LK	DC MI_ D5	-	EVE NT OU T
	PD4	-	-	-	-	-	-	-	USA RT2 _ RTS	-	-	-	-	FM C_N OE	-	-	EVE NT OU T
	PD5	-	-	-	-	-	-	-	USA RT2 _ TX	-	-	-	-	C_N FM WE	-	-	EVE NT OU T
	PD6	-	-	-	-	-	3_ MO SPI SI/ I2S 3_S D	SAI 1_ SD_ A	USA RT2 _ RX	-	-	-	-	C_ NW FM AIT	DC MI_ D10	-	EVE NT OU T
Por t D	PD7	-	-	-	-	-	-	-	USA RT2 _ CK	SPD IF_ RX0	-	-	-	FM C_N E1	-	-	EVE NT OU T
	PD8	-	-	-	-	-	-	-	USA RT3 _ TX	SPD IF_ RX 1	-	-	-	FM C_D 13	-	-	EVE NT OU T
	PD9	-	-	-	-	-	-	-	USA RT3 _ RX	-	-	-	-	FM C_D 14	-	-	EVE NT OU T
	PD 10	-	-	-	-	-	-	-	USA RT3 _ CK	-	-	-	-	C_D FM 15	-	-	EVE NT OU T
	PD 11		-	-	-	FM PI2 C1 _SM BA	-	-	USA RT3 _ CTS	-	QU AD SPI _ BK1 _IO 0	SAI 2_S D_A	-	FM C_A 16	-	-	EVE NT OU T
	PD 12	-	-	TIM 4_C H1	-	C1 FM PI2 _SC L	-	-	USA RT3 _ RTS	-	QU SPI AD _ BK1 _IO 1	SAI 2_F S_A	-	FM C_A 17	-	-	EVE NT OU T
	PD 13	-	-	TIM 4_C H2	-	C1 FM PI2 _SD A	-	-	-	-	QU SPI AD _ BK1 _IO 3	SAI 2_S CK_ A	-	FM C_A 18	-	-	EVE NT OU T
	PD 14	-	-	TIM 4_C H3	-	FM PI2 C1 _SC L	-	-	-	2_ SC SAI K_A	-	-	-	FM C_D 0	-	-	EVE NT OU T
	PD 15	-	-	4_C TIM H4	-	FM PI2 C1 _SD A	-	-	-	-	-	-	-	C_D FM 1	-	-	EVE NT OU T

![](_page₅6_Picture₅.jpeg)

![](_page₅7_Picture₂.jpeg)

Table 11. Alternate function (continued)

	1	I			1	1	1		te rancti	(	· · · · · · · · · · · · · · · · · · ·			1	1
		AF0	AF1	AF2	AF3	AF4	AF5	AF6	AF7	AF8	AF9	AF10	AF11	AF12	AF13
Po	ort	sys	TIM1/2	TIM3/4/5	TIM8/9/ 10/11/ CEC	I2C1/2/3 /4/CEC	SPI1/2/3/4	SPI2/3/4/ SAI1	SPI2/3/ USART1/2 /3/UART5/ SPDIF	SA12/U SART6/ UART4/ 5/SDIP	CAN1/2 TIM12/13/ 14/ QUADSPI	SAI2/QUA DSPI/ OTG2_HS/ OTG1_FS	OTG1_FS	FMC/ SDIO/ OTG2_FS	DCMI
	PE0	-	-	TIM4_ETR	-	-	-	-	-	-	-	SAI2_ MCLK_A	-	FMC_ NBL0	DCMI_D2
	PE1	-	-	-	-	-	-	-	-	-	-	-	-	FMC_ NBL1	DCMI_D3
	PE2	TRACE CLK	-	-	-	-	SPI4_SCK	SAI1_ MCLK_A	-	-	QUADSPI_ BK1_IO2	-	-	FMC_A23	-
	PE3	TRACE D0	-	-	-	-	-	SAI1_ SD_B	-	-	-	-	-	FMC_A19	-
	PE4	TRACE D1	-	-	-	-	SPI4_NSS	SAI1_ FS_A	-	-	-	-	-	FMC_A20	DCMI_D4
	PE5	TRACE D2	-	-	TIM9_CH1	-	SPI4_MISO	SAI1_ SCK_A	-	-	-	-	-	FMC_A21	DCMI_D6
	PE6	TRACE D3	-	-	TIM9_CH2	-	SPI4_MOSI	SAI1_ SD_A	-	-	-	-	-	FMC_A22	DCMI_D7
	PE7	-	TIM1_ETR	-	-	-	-	-	-	UART5_ RX	-	QUADSPI_ BK2_IO0	-	FMC_D4	-
Port E	PE8	-	TIM1_CH1N	-	-	-	-	-	-	UART5_ TX	-	QUADSPI_ BK2_IO1	-	FMC_D5	-
	PE9	-	TIM1_CH1	-	-	-	-	-	-	-	-	QUADSPI_ BK2_IO2	-	FMC_D6	-
	PE10	-	TIM1_CH2N	-	-	-	-	-	-	-	-	QUADSPI_ BK2_IO3	-	FMC_D7	-
	PE11	-	TIM1_CH2	-	-	-	SPI4_NSS	-	-	-	-	SAI2_ SD_B	-	FMC_D8	-
	PE12	-	TIM1_CH3N	-	-	-	SPI4_SCK	-	-	-	-	SAI2_ SCK_B	-	FMC_D9	-
	PE13	-	TIM1_CH3	-	-	-	SPI4_MISO	-	-	-	-	SAI2_ FS_B	-	FMC_D10	-
	PE14	-	TIM1_CH4	-	-	-	SPI4_MOSI	-	-	-	-	SAI2_ MCLK_B	-	FMC_D11	-
	PE15	-	TIM1_BKIN	-	-	-		-	-	-	-	-	-	FMC_D12	-

		AF 0	AF 1	AF 2	AF 3	AF 4	AF 5	AF 6	AF 7	AF 8	AF 9	AF 10	AF 11	AF 12	AF 13	AF 14	AF 15
Po	rt	SY S	TIM 1/2	TIM 3/4 /5	TIM / 10/ 8/9 11/ CE C	I2C /3 /4/C 1/2 EC	SP I1/2 /3/4	SP /4/ SA I2/3 I1	/ US SP I2/3 T1/ 2 /3/U AR T5/ SP AR DIF	SA 12/ U SA 6/ UA RT 4/ 5/S RT DIP	/2 TIM CA N1 13/ 14/ QU 12/ AD SP I	SA I2/Q UA DS PI/ OT / OT G2 HS G1 FS	OT G1 FS _	C/ SD FM IO/ OT G2 FS _	DC MI		SY S
	PF0	-	-	-	-	I2C 2_ SDA	-	-	-	-	-	-	-	C_A 0 FM	-	-	EVE NT OU T
	PF1	-				I2C 2_ SC L	-	-	-	-	-	-	-	FM C_A 1	-	-	EVE NT OU T
	PF2	-	-	-	-	2_ SM I2C BA	-	-	-	-	-	-	-	FM C_A 2	-	-	EVE NT OU T
	PF3	-	-	-	-		-	-	-	-	-	-	-	FM C_A 3	-	-	EVE NT OU T
	PF4	-	-	-	-		-	-	-	-	-	-	-	FM C_A 4	-	-	EVE NT OU T
	PF5	-	-	-	-		-	-	-	-	-	-	-	C_A FM 5	-	-	EVE NT OU T
	PF6	-	-	-	TIM 10_ CH 1	-	-	SAI 1_ SD_ B	-	-	QU AD SPI _ BK1 _IO 3	-	-		-	-	EVE NT OU T
	PF7	-	-	-	TIM 11_ CH 1	-	-	1_ MC SAI LK_ B	-	-	QU AD SPI _ BK1 _IO 2	-	-		-	-	EVE NT OU T
Por t F	PF8	-	-	-	-	-	-	SAI 1_ SC K_B	-	-	TIM 13_ CH 1	QU SPI AD _ BK1 _IO 0	-		-	-	EVE NT OU T
	PF9	-	-	-	-	-	-	SAI 1_ FS_ B	-	-	TIM 14_ CH 1	QU AD SPI _ BK1 _IO 1	-		-	-	EVE NT OU T
	PF1 0	-	-	-	-	-	-	-	-	-	-	-	-		DC MI_ D11	-	EVE NT OU T
	PF1 1	-	-	-	-	-	-	-	-	-	-	SA I2_S D_B	-	C_ SD FM NRA S	DC MI_ D12	-	EVE NT OU T
	PF1 2	-	-	-	-	-	-	-	-	-	-	-	-	FM C_A 6	-	-	EVE NT OU T
	PF1 3	-	-	-	-	C1 FM PI2 _SM BA	-	-	-	-	-	-	-	FM C_A 7	-	-	EVE NT OU T
	PF1 4	-	-	-	-	FM PI2 C1 _SC L	-	-	-	-	-	-	-	FM C_A 8	-	-	EVE NT OU T
	PF1 5	-	-	-	-	FM PI2 C1 _SD A	-	-	-	-	-	-	-	FM C_A 9	-	-	EVE NT OU T

![](_page₅8_Picture₅.jpeg)

![](_page₅9_Picture₂.jpeg)

Thermal Information

The maximum chip-junction temperature, TJ max, in degrees Celsius, may be calculated using the following equation:

TJ max = TA max + (PD max x ΘJA)

Where:

TA max is the maximum ambient temperature in °C,
ΘJA is the package junction-to-ambient thermal resistance, in °C/W,
PD max is the sum of PINT max and PI/O max (PD max = PINT max + PI/Omax),
PINT max is the product of IDD and VDD, expressed in Watts. This is the maximum chip internal power.

PI/O max represents the maximum power dissipation on output pins where:P_I/O$ max = $\Sigma (V_{OL} \times I_{OL}) + \Sigma ((V_{DD} - V_{OH}) \times I_{OH}),

taking into account the actual VOL / IOL and VOH / IOH of the I/Os at low and high level in the application.

Symbol	Parameter	Value	Unit
	Thermal resistance junction-ambient LQFP64 - 10 × 10 mm	TBD
ΘJA	Thermal resistance junction-ambient LQFP100 - 14 × 14 mm / 0.5 mm pitch	43
	Thermal resistance junction-ambient LQFP144 - 20 × 20 mm / 0.5 mm pitch	40	°C/W
	Thermal resistance junction-ambient UQFP144 - 7 × 7 mm / 0.5 mm pitch	TBD
	Thermal resistance junction-ambient UQFP144 - 10 × 10 mm / 0.8 mm pitch	TBD

Reference document

JESD51-2 Integrated Circuits Thermal Test Method Environment Conditions - Natural Convection (Still Air). Available from www.jedec.org.

Part numbering STM32F446xx

Related Variants

The following components are covered by the same datasheet.

Part Number	Manufacturer	Package
STM32F446MC	STMicroelectronics	—
STM32F446ME	STMicroelectronics	—
STM32F446RE	STMicroelectronics	—
STM32F446RET6		LQFP-64(10x10)
STM32F446VC	STMicroelectronics	—
STM32F446VE	STMicroelectronics	—
STM32F446X	—	—
STM32F446XC	STMicroelectronics	—
STM32F446XC/XE	STMicroelectronics	—
STM32F446XC/XV	STMicroelectronics	—
STM32F446XX	STMicroelectronics	—
STM32F446XXMICROCONTROLLERS	—	—
STM32F446ZC	STMicroelectronics	—
STM32F446ZE	STMicroelectronics	—

Data on this page is extracted from publicly available manufacturer datasheets using automated tools including AI. It may contain errors or omissions. Always verify specifications against the official manufacturer datasheet before making design or purchasing decisions. See our Terms of Service. Rights holders can submit a takedown request.

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