STMicroelectronics

STM32F411RET6 - 512KB Flash ARM Cortex-M4F MCU | STMicroelectronics

Name: STM32F411RET6
Brand: STMicroelectronics
Price: 8.50 USD
Availability: InStock

MPN: STM32F411RET6 ✓ Active

In Stock (99,999) Ships in 1-3 business days

1.7 V to 3.6 V Vdss LQFP64 (10x10 mm, 0.5 mm pitch) Package 100 MHz Speed 512 KB Memory

$8.5 USD / Unit

MOQ: 1 |

Volume Pricing

Qty	Unit Price	Extended
1	$8.5	$8.50
10	$7.65	$76.50
100	$6.8	$680.00
500	$6.12	$3,060.00
1,000	$5.44	$5,440.00

ℹ️ All prices are in USD

View Datasheet (PDF) View Alternatives

Quantity

Drop-in alternatives for STM32F411RET6 — same package, pin-to-pin compatible. Different-package parts requiring PCB rework are excluded.

Quick Comparison Tool — Select alternative parts for side-by-side comparison:

STM32F411RCT6

✅ Drop-In

📦 LQFP64

Same package and pinout, but 256 KB flash instead of 512 KB

📋 Reference alternative (not in catalog)

STM32F401RET6

✅ Drop-In

STMicroelectronics

📦 LQFP64

ARM Cortex-M4 with FPU · 84 MHz · 512 KB · 96 KB · 1.7 V to 3.6 V · -40C to +85C · LQFP64 (10x10 mm, 0.5 mm pitch) · 64

✓ 99,999 In Stock

$5.44 / Unit

View Datasheet →

STM32F411RET7

✅ Drop-In

📦 LQFP64

Same package and pinout, extended temperature range (-40 to +105C)

📋 Reference alternative (not in catalog)

STM32F412RET6

⚡ Same Package

STMicroelectronics

📦 LQFP64

ARM Cortex-M4F with FPU · 100 MHz · 512 KB · 256 KB · 1.7 V to 3.6 V · -40C to +85C · LQFP64 (10x10 mm, 0.5 mm pitch) · 50

✓ 99,999 In Stock

$5.44 / Unit

View Datasheet →

ATSAM4E16EA

⚡ Same Package

📦 LQFP64

Same package but different pinout, not drop-in

📋 Reference alternative (not in catalog)

ℹ️ 1 cross-package part(s) hidden — different package requires PCB rework and is not a true drop-in replacement. Contact us if you need cross-package suggestions.

STM32F411RET6 Maximum Ratings & Electrical Characteristics

Core	ARM Cortex-M4F with FPU
Maximum Clock Frequency	100 MHz
Flash Memory	512 KB
SRAM	128 KB
Supply Voltage	1.7 V to 3.6 V
Operating Temperature	-40C to +85C
Package	LQFP64 (10x10 mm, 0.5 mm pitch)
GPIO Pins	50
ADC	12-bit, 16 channels
DAC	None
USART	3
SPI	5
I2C	3
USB	USB 2.0 OTG FS
CAN	1
Timers	8 (including advanced-control)
DMA	16 channels
RNG	Yes
RTC	Yes
Low Power Modes	Sleep, Stop, Standby
RoHS	Compliant

STM32F411RET6 Pin Configuration

Pin 1	VBAT — Battery backup for RTC
Pin 2	PC13 — GPIO or RTC tamper
Pin 3	PC14 — GPIO or OSC32_IN
Pin 4	PC15 — GPIO or OSC32_OUT
Pin 5	PF0 — GPIO or OSC_IN
Pin 6	PF1 — GPIO or OSC_OUT
Pin 7	NRST — Reset (active low)
Pin 8	VSSA — Analog ground
Pin 9	VDDA — Analog power supply
Pin 10	PA0 — GPIO/ADC12_IN0
Pin 11	PA1 — GPIO/ADC12_IN1
Pin 12	PA2 — GPIO/USART2_TX/ADC12_IN2
Pin 13	PA3 — GPIO/USART2_RX/ADC12_IN3
Pin 14	VSS — Ground
Pin 15	VDD — Power supply
Pin 16	PA4 — GPIO/SPI1_NSS/ADC12_IN4
Pin 17	PA5 — GPIO/SPI1_SCK/ADC12_IN5
Pin 18	PA6 — GPIO/SPI1_MISO/ADC12_IN6
Pin 19	PA7 — GPIO/SPI1_MOSI/ADC12_IN7
Pin 20	PB0 — GPIO/ADC12_IN8
Pin 21	PB1 — GPIO/ADC12_IN9
Pin 22	PB2 — GPIO/BOOT1
Pin 23	PB10 — GPIO/I2C2_SCL/USART3_TX
Pin 24	PB11 — GPIO/I2C2_SDA/USART3_RX
Pin 25	VSS — Ground
Pin 26	VDD — Power supply
Pin 27	PB12 — GPIO/SPI2_NSS/I2C2_SMBA
Pin 28	PB13 — GPIO/SPI2_SCK
Pin 29	PB14 — GPIO/SPI2_MISO
Pin 30	PB15 — GPIO/SPI2_MOSI
Pin 31	PC6 — GPIO/SDIO_D6
Pin 32	PC7 — GPIO/SDIO_D7
Pin 33	PC8 — GPIO/SDIO_D0
Pin 34	PC9 — GPIO/SDIO_D1
Pin 35	PA8 — GPIO/USART1_CK
Pin 36	PA9 — GPIO/USART1_TX
Pin 37	PA10 — GPIO/USART1_RX
Pin 38	PA11 — GPIO/USB_DM
Pin 39	PA12 — GPIO/USB_DP
Pin 40	PA13 — GPIO/SWDIO
Pin 41	VSS — Ground
Pin 42	VDD — Power supply
Pin 43	PA14 — GPIO/SWCLK
Pin 44	PA15 — GPIO/JTDI
Pin 45	PB3 — GPIO/JTDO
Pin 46	PB4 — GPIO/NJTRST
Pin 47	PB5 — GPIO/I2C1_SMBA
Pin 48	PB6 — GPIO/I2C1_SCL
Pin 49	PB7 — GPIO/I2C1_SDA
Pin 50	BOOT0 — Boot mode selection
Pin 51	PB8 — GPIO/CAN_RX
Pin 52	PB9 — GPIO/CAN_TX
Pin 53	VSS — Ground
Pin 54	VDD — Power supply
Pin 55	PC10 — GPIO/SDIO_D2
Pin 56	PC11 — GPIO/SDIO_D3
Pin 57	PC12 — GPIO/SDIO_CK
Pin 58	PD2 — GPIO/SDIO_CMD
Pin 59	PC0 — GPIO/ADC12_IN10
Pin 60	PC1 — GPIO/ADC12_IN11
Pin 61	PC2 — GPIO/ADC12_IN12
Pin 62	PC3 — GPIO/ADC12_IN13
Pin 63	VSS — Ground
Pin 64	VDD — Power supply

Safe Operating Area (SOA) & Thermal Characteristics

No official SOA curve available for this digital IC. Always operate within absolute maximum ratings specified in the datasheet. Ensure adequate cooling and derate as needed.

Typical Applications

STM32F411RET6 is suitable for 6 applications: Industrial Control Systems, IoT Gateways, Consumer Electronics, Medical Devices, Motor Drives, Robotics.

🏭

Industrial Control Systems

The STM32F411RET6 is ideal for industrial control systems due to its 100 MHz Cortex-M4F core with FPU, which accelerates complex control algorithms. It features advanced timers for PWM generation, a 12-bit ADC for sensor feedback, and multiple communication interfaces (USART, SPI, I2C, CAN) for connectivity to PLCs and HMIs. The wide operating temperature range (-40°C to +85°C) ensures reliability in harsh environments. In a typical motor control application, the MCU reads current sensors via the ADC, executes FOC algorithm using the FPU, and generates PWM signals via TIM1. The CAN interface allows integration into industrial networks. The 512 KB flash provides ample space for firmware, and the 128 KB SRAM supports real-time data processing. The low-power modes help reduce energy consumption in always-on systems.

Recommended

IR2104 (MOSFET gate driver for motor control) ACS712 (Current sensor for feedback)

🌐

IoT Gateways

The STM32F411RET6 is well-suited for IoT gateways due to its USB OTG FS interface for connecting to cellular or Wi-Fi modules, and its multiple UARTs for sensor data collection. The 100 MHz Cortex-M4F core handles protocol stacks like MQTT and TLS efficiently. The 512 KB flash allows storing firmware updates and configuration data. The RTC and low-power modes enable battery-powered operation with periodic wake-ups. In a typical gateway, the MCU collects data from sensors via I2C or SPI, processes it, and forwards it to the cloud via a Wi-Fi module connected through UART or USB. The FPU accelerates encryption algorithms, improving security. The wide supply voltage range (1.7V to 3.6V) supports battery operation. The device's small LQFP64 package fits compact gateway designs.

Recommended

ESP8266 (Wi-Fi module for connectivity) SHT30 (Temperature/humidity sensor)

📱

Consumer Electronics

The STM32F411RET6 is used in consumer electronics like smart home devices, wearables, and audio equipment. Its high performance and FPU enable audio processing and user interface rendering. The USB OTG interface allows direct connection to smartphones or PCs. The low-power modes extend battery life in portable devices. In a smart speaker, the MCU handles audio codec interfacing via I2S, processes voice commands using DSP algorithms, and controls LEDs via GPIO. The 512 KB flash stores audio samples and firmware. The 128 KB SRAM supports real-time audio buffering. The device's rich peripheral set reduces BOM cost by integrating multiple functions. The -40°C to +85°C range ensures operation in various environments.

Recommended

CS43L22 (Audio codec for sound output) WS2812B (Addressable LED for status indication)

💊

Medical Devices

The STM32F411RET6 is suitable for medical devices such as patient monitors, infusion pumps, and diagnostic equipment. Its high reliability, wide temperature range, and low power consumption are critical for medical applications. The 12-bit ADC with 16 channels enables accurate sensor readings, and the FPU processes biomedical signals like ECG. The multiple communication interfaces allow data transfer to displays or central monitoring systems. In a patient monitor, the MCU reads vital signs from sensors, processes the data, and displays it on an LCD. The USB interface can connect to a PC for data logging. The 512 KB flash stores patient data and firmware. The device's compliance with RoHS and its long-term availability make it suitable for medical products with extended lifecycles.

Recommended

AD8232 (ECG front-end for heart rate monitoring) MAX30102 (Pulse oximeter sensor)

⚡

Motor Drives

The STM32F411RET6 excels in motor drive applications due to its advanced-control timers (TIM1 and TIM8) that generate complementary PWM with dead-time insertion, essential for driving H-bridges. The 12-bit ADC with up to 16 channels provides fast and accurate current sensing. The FPU accelerates field-oriented control (FOC) algorithms, enabling efficient and smooth motor operation. The CAN interface allows communication with motor controllers in industrial networks. In a brushless DC motor drive, the MCU reads Hall sensor or encoder feedback, executes FOC, and outputs PWM signals to the gate driver. The 512 KB flash stores complex control algorithms, and the 128 KB SRAM handles real-time data. The device's robust design and wide temperature range ensure reliable operation in industrial environments.

Recommended

IR2104 (Gate driver for MOSFETs) AS5047P (Magnetic encoder for position feedback)

🤖

Robotics

The STM32F411RET6 is a popular choice for robotics due to its high performance, rich peripherals, and small footprint. The 100 MHz Cortex-M4F with FPU handles complex kinematics and control algorithms. Multiple timers and ADCs support servo control and sensor fusion. The UART, SPI, and I2C interfaces connect to various sensors and actuators. In a robotic arm, the MCU reads joint encoders, computes inverse kinematics, and generates PWM signals for servo motors. The USB interface allows programming and debugging. The 512 KB flash stores the robot's firmware, and the 128 KB SRAM supports real-time processing. The device's low power consumption is beneficial for battery-powered robots. The LQFP64 package is compact enough for space-constrained robot designs.

Recommended

MPU6050 (IMU for orientation sensing) PCA9685 (Servo driver for multiple motors)

Recommended Products Summary

IR2104 MOSFET gate driver for motor control Used in: Industrial Control Systems, Motor Drives ACS712 Current sensor for feedback Used in: Industrial Control Systems ESP8266 Wi-Fi module for connectivity Used in: IoT Gateways SHT30 Temperature/humidity sensor Used in: IoT Gateways CS43L22 Audio codec for sound output Used in: Consumer Electronics WS2812B Addressable LED for status indication Used in: Consumer Electronics AD8232 ECG front-end for heart rate monitoring Used in: Medical Devices MAX30102 Pulse oximeter sensor Used in: Medical Devices AS5047P Magnetic encoder for position feedback Used in: Motor Drives MPU6050 IMU for orientation sensing Used in: Robotics PCA9685 Servo driver for multiple motors Used in: Robotics

What is the maximum clock frequency of STM32F411RET6?

The STM32F411RET6 operates at a maximum clock frequency of 100 MHz. According to the STMicroelectronics datasheet (DS11123), the ARM Cortex-M4F core with FPU can run at up to 100 MHz, providing 125 DMIPS performance.

How much flash memory does STM32F411RET6 have?

The STM32F411RET6 has 512 KB of flash memory. This is sufficient for complex firmware, including RTOS, communication stacks, and application code. The flash is organized into sectors for flexible erase and programming.

What is the difference between STM32F411RET6 and STM32F411CEU6?

The STM32F411RET6 has 512 KB flash and 128 KB SRAM in an LQFP64 package, while the STM32F411CEU6 has 512 KB flash and 128 KB SRAM in a UFQFPN48 package. The RET6 offers more GPIO pins (50 vs 36) and a larger package, making it suitable for designs requiring more I/O.

Can STM32F411RET6 be used for motor control applications?

Yes, the STM32F411RET6 is well-suited for motor control due to its advanced-control timers (TIM1 and TIM8) that generate PWM signals with dead-time insertion, and its 12-bit ADC with up to 16 channels for current sensing. The FPU accelerates control algorithms like FOC.

What is the operating voltage range of STM32F411RET6?

The STM32F411RET6 operates from 1.7V to 3.6V. This wide range allows battery-powered applications and compatibility with 3.3V logic. The internal regulator provides 1.2V for the core.

Does STM32F411RET6 have a built-in USB interface?

Yes, the STM32F411RET6 includes a USB 2.0 OTG FS (Full-Speed) interface. It supports device, host, and OTG modes, making it suitable for USB peripherals, USB-to-serial converters, and USB-powered devices.

What is the price of STM32F411RET6?

As of 2026-08-13, the price of STM32F411RET6 is approximately $8.50 for single-unit quantities, decreasing to $5.44 at 1000 units. Prices vary by distributor and volume; check DigiKey or Mouser for current pricing.

Where can I buy STM32F411RET6 online?

STM32F411RET6 is available from major distributors such as DigiKey, Mouser, and Farnell. You can also purchase directly from STMicroelectronics' e-store. Ensure you buy from authorized distributors to guarantee genuine parts.

What is the lead time for STM32F411RET6?

The typical lead time for STM32F411RET6 is 8-12 weeks from STMicroelectronics, but it may vary based on market demand and distributor stock. Check with your preferred distributor for current availability and lead time.

Is STM32F411RET6 in stock?

Stock availability for STM32F411RET6 varies by distributor. As of 2026-08-13, DigiKey and Mouser typically have stock, but it can fluctuate. Check their websites for real-time inventory.

STM32F411RET6 vs STM32F407VGT6 - which is better for a high-performance application?

The STM32F407VGT6 has a higher clock speed (168 MHz vs 100 MHz), more flash (1 MB vs 512 KB), and more SRAM (192 KB vs 128 KB), plus additional peripherals like Ethernet and camera interface. Choose STM32F407VGT6 for demanding applications requiring more processing power and connectivity; choose STM32F411RET6 for lower power and cost-sensitive designs.

When should I choose STM32F411RET6 over STM32F103RET6?

Choose STM32F411RET6 when you need higher performance (100 MHz Cortex-M4F vs 72 MHz Cortex-M3), FPU for math-intensive tasks, more SRAM (128 KB vs 64 KB), and USB OTG. The STM32F103RET6 is a lower-cost option for simpler applications with lower performance requirements.

What is the best drop-in replacement for STM32F411RET6?

The best drop-in replacement for STM32F411RET6 is the STM32F411RCT6, which has the same LQFP64 package and pinout but 256 KB flash instead of 512 KB. For more flash, the STM32F411RET6 is already the top variant; consider STM32F412RET6 for additional features like SDRAM interface, but verify pin compatibility.

Can STM32F411RET6 be replaced by STM32F401RET6?

Yes, the STM32F401RET6 is pin-compatible with STM32F411RET6 in the same LQFP64 package, but it has a lower maximum clock (84 MHz vs 100 MHz) and no FPU. It is a drop-in replacement if you can accept the reduced performance and lack of FPU.

Where can I download the STM32F411RET6 datasheet PDF?

The STM32F411RET6 datasheet (DS11123) can be downloaded from the STMicroelectronics website at https://www.st.com/resource/en/datasheet/stm32f411re.pdf. It contains full specifications, pinout, and electrical characteristics.

Where can I find the STM32F411RET6 pinout?

The STM32F411RET6 pinout is detailed in the datasheet (DS11123) and the STM32F411xx reference manual (RM0383). The LQFP64 package has 50 GPIO pins, with specific functions assigned to each pin. Refer to the datasheet for the complete pinout diagram.

What are the key specifications of STM32F411RET6 that engineers should know?

The STM32F411RET6 features a 100 MHz ARM Cortex-M4F core with FPU, 512 KB flash, 128 KB SRAM, 3 USARTs, 5 SPIs, 3 I2Cs, USB 2.0 OTG FS, CAN, 12-bit ADC with 16 channels, and 8 timers. It operates from 1.7V to 3.6V and is available in LQFP64 package.

Hey Google, what can replace STM32F411RET6?

The STM32F411RET6 can be replaced by pin-compatible STM32F411RCT6 (256 KB flash) or STM32F401RET6 (84 MHz, no FPU) from STMicroelectronics. Cross-brand alternatives with similar performance include NXP LPC1768 and Atmel ATSAM4E16EA, but they are not pin-compatible and require PCB redesign.

Is STM32F411RET6 the same as STM32F411CEU6?

No, the STM32F411RET6 and STM32F411CEU6 are not the same. They have the same core and memory, but the RET6 is in an LQFP64 package with 50 GPIOs, while the CEU6 is in a UFQFPN48 package with 36 GPIOs. They are not pin-compatible.

What is the best NXP equivalent for STM32F411RET6?

The NXP LPC1768 is a comparable ARM Cortex-M3 MCU with 512 KB flash and 64 KB SRAM, but it is not pin-compatible with STM32F411RET6. For a closer match, consider NXP LPC4088 (Cortex-M4F) but it also has a different package and pinout. Cross-brand replacements require PCB redesign.

Engineering reference data for STM32F411RET6 — comparison, design guidance, and compliance information.

Selection Guide

Choose STM32F411RET6 when you need high performance (100 MHz Cortex-M4F with FPU), 512 KB flash, and 128 KB SRAM in an LQFP64 package. It is ideal for applications requiring DSP capabilities, USB OTG, and CAN. If you need less flash, consider STM32F411RCT6 (256 KB) as a drop-in replacement. If you can sacrifice FPU and clock speed, STM32F401RET6 is a lower-cost drop-in option. For extended temperature range, choose STM32F411RET7. For additional features like SDRAM interface, consider STM32F412RET6, but verify pin compatibility. Cross-brand alternatives like LPC1768 or ATSAM4E16EA are not pin-compatible and require PCB redesign.

Comparison with Alternatives

Parameter	This Product	STM32F411RCT6	STM32F401RET6	STM32F411RET7	STM32F412RET6	LPC1768FBD100	ATSAM4E16EA
Package	LQFP64	LQFP64 - same	LQFP64 - same	LQFP64 - same	LQFP64 - same	LQFP100 - different	LQFP64 - same
Brand	STMicroelectronics	STMicroelectronics	STMicroelectronics	STMicroelectronics	STMicroelectronics	NXP Semiconductors	Microchip Technology
Core	ARM Cortex-M4F	ARM Cortex-M4F	ARM Cortex-M4 (no FPU)	ARM Cortex-M4F	ARM Cortex-M4F	ARM Cortex-M3	ARM Cortex-M4F
Max Clock Frequency	100 MHz	100 MHz	84 MHz	100 MHz	100 MHz	100 MHz	120 MHz
Flash Memory	512 KB	256 KB	512 KB	512 KB	512 KB	512 KB	512 KB
SRAM	128 KB	128 KB	96 KB	128 KB	256 KB	64 KB	128 KB
USB	USB 2.0 OTG FS	USB 2.0 OTG FS	USB 2.0 OTG FS	USB 2.0 OTG FS	USB 2.0 OTG FS	USB 2.0 FS Device/Host/OTG	USB 2.0 FS Device
CAN	1	1	0	1	1	2	2
GPIO Pins	50	50	50	50	50	70	50

Key Differentiators

Higher clock speed and FPU (vs STM32F401RET6)
More SRAM (vs STM32F401RET6)
CAN interface (vs STM32F401RET6)

Design Notes

Decouple each VDD pin with a 100nF ceramic capacitor placed as close as possible to the pin, and add a 4.7uF bulk capacitor. The VDDA pin must be connected to a clean analog supply, typically through a ferrite bead and a 1uF capacitor, to ensure ADC accuracy. For battery-powered designs, connect VBAT to a backup battery or to VDD through a diode to maintain RTC operation.

For the LQFP64 package, ensure proper solder paste stencil design with 0.5mm pitch. Use a 4-layer PCB with a solid ground plane for best EMC performance. Place the crystal oscillator (HSE) close to the OSC_IN/OSC_OUT pins (PF0/PF1) with load capacitors as specified in the datasheet. Keep high-speed signals like USB (PA11/PA12) impedance-matched to 90 ohms differential.

Do not leave the BOOT0 pin floating; connect it to ground through a 10k resistor for normal boot from flash. Ensure the NRST pin has a 100nF capacitor to ground for reliable reset. When using the ADC, avoid digital switching noise on the VDDA supply. For low-power modes, configure all unused GPIOs as analog inputs to minimize leakage current.