STMicroelectronics

STM32F303ZET6 - 512KB Flash ARM Cortex-M4F MCU | STMicroelectronics

Name: STM32F303ZET6
Brand: STMicroelectronics

MPN: STM32F303ZET6 ✓ Hoạt động

2.0 V to 3.6 V Vdss LQFP144 (20x20 mm, 0.5 mm pitch) Package 72 MHz Speed 512 KB Memory

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STM32F303ZET6 Tóm tắt

The STMicroelectronics STM32F303ZET6 is a high-performance 32-bit ARM Cortex-M4F microcontroller with floating-point unit (FPU), operating at up to 72 MHz. It integrates 512 KB of flash memory and 64 KB of SRAM, making it suitable for complex control and signal processing applications. The device is housed in a 144-pin LQFP package (LQFP144) with a 20x20 mm body and 0.5 mm pitch, providing extensive I/O and peripheral connectivity.

What is an ARM Cortex-M4F microcontroller? It is a 32-bit processor core designed for embedded control applications, featuring a floating-point unit (FPU) for efficient handling of mathematical operations, DSP instructions for digital signal processing, and a memory protection unit (MPU) for enhanced system reliability. The Cortex-M4F is part of the ARM Cortex-M family, which includes the M0, M0+, M3, M4, and M7 cores, each optimized for different performance and power trade-offs. In the system hierarchy, the microcontroller sits between the application software and the physical hardware, executing instructions and managing peripherals such as timers, ADCs, and communication interfaces.

Key features of the STM32F303ZET6 include a 72 MHz maximum clock speed, 512 KB flash, 64 KB SRAM, and a rich set of peripherals: 4x 12-bit ADCs with up to 5 MSPS, 2x 12-bit DACs, 7x comparators, 4x operational amplifiers, 3x 16-bit advanced-control timers, 2x 32-bit timers, and multiple communication interfaces (SPI, I2C, USART, CAN, USB). The device also features a true random number generator (RNG), a CRC calculation unit, and a 12-channel DMA controller. The FPU accelerates single-precision floating-point arithmetic, which is critical for control loops and sensor fusion algorithms.

Technically, the STM32F303ZET6 is built on a 90nm process technology, offering a balance of performance and power efficiency. It operates from a 2.0V to 3.6V supply and features multiple low-power modes (Sleep, Stop, Standby) to minimize energy consumption in battery-powered designs. The device includes a comprehensive clock system with an internal 8 MHz RC oscillator, an internal 32 kHz RC oscillator, and support for external crystals up to 32 MHz. The ADC can operate in dual or triple interleaved mode to achieve higher sampling rates, and the comparators and op-amps enable analog signal conditioning without external components.

Typical applications include motor control (field-oriented control of brushless DC motors), industrial automation (PLC, sensors, actuators), medical devices (patient monitoring, infusion pumps), and consumer electronics (audio processing, smart home controllers). The combination of analog peripherals and DSP capabilities makes it ideal for applications requiring both signal conditioning and real-time control.

When designing with this device, ensure adequate decoupling of the power supply pins (VDD, VDDA) with 100nF and 4.7uF capacitors placed close to the pins. The VDDA pin must be connected to a clean analog supply to achieve the specified ADC accuracy. Also, configure the boot pins correctly to select the desired boot source (flash, system memory, or SRAM) during development.

Bộ thay thế dễ dàng lắp đặt cho STM32F303ZET6 — cùng gói, chân-to-chân tương thích. Các bộ phận yêu cầu hàn PCB bị loại trừ.

Các biến thể trong loạt này

Các mẫu cùng loạt có thể lắp đặt dễ dàng tương thích với STM32F303ZET6 (cùng hình factor và footprint) — khác nhau ở ADC, Communication Interfaces, Comparators, Core, DAC.

STM32F303RET6

STMicroelectronics

ADC: 2x 12-bit, up to 5 MSPS

Communication Interfaces: CAN 2.0B, USB 2.0 FS, USART, SPI, I2C

Comparators: 7 fast comparators

So sánh với STM32F303ZET6 →

STM32F303ZET7

✅ Drop-In ⚠️ Thông số chưa được xác minh

📦 LQFP144

Extended temperature range (-40C to +105C)

📋 Tham chiếu thay thế (không có trong danh mục)

STM32F303ZDT6

✅ Drop-In ⚠️ Thông số chưa được xác minh

📦 LQFP144

384 KB flash instead of 512 KB

📋 Tham chiếu thay thế (không có trong danh mục)

STM32F303ZCT6

✅ Drop-In ⚠️ Thông số chưa được xác minh

📦 LQFP144

256 KB flash instead of 512 KB

📋 Tham chiếu thay thế (không có trong danh mục)

STM32F303ZET6TR

✅ Drop-In ⚠️ Thông số chưa được xác minh

📦 LQFP144

Tape and reel packaging variant

📋 Tham chiếu thay thế (không có trong danh mục)

STM32F303ZET6

✅ Drop-In

STMicroelectronics

📦 LQFP144

ARM Cortex-M4F with FPU · 72 MHz · 512 KB · 64 KB · LQFP144 (20x20 mm, 0.5 mm pitch) · 2.0 V to 3.6 V · -40C to +85C · 112

Liên hệ để biết giá

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STM32F303ZET6 Tỷ lệ tối đa & tính chất điện

Core	ARM Cortex-M4F with FPU
Maximum Clock Speed	72 MHz
Flash Memory	512 KB
SRAM	64 KB
Hộp	LQFP144 (20x20 mm, 0.5 mm pitch)
Điện áp cung cấp	2.0 V to 3.6 V
Nhiệt độ hoạt động	-40C to +85C
Number of I/O Pins	112
ADC	4x 12-bit, up to 5 MSPS
DAC	2x 12-bit
Comparators	7
Operational Amplifiers	4
Timers	3x 16-bit advanced-control, 2x 32-bit, 4x 16-bit general-purpose
Communication Interfaces	SPI (3), I2C (2), USART (5), CAN (1), USB 2.0 FS
DMA	12 channels
RNG	Yes
CRC	Yes
RoHS	Compliant

Cấu hình chân STM32F303ZET6

Chân 1	PE2 — GPIO or alternate function
Chân 2	PE3 — GPIO or alternate function
Chân 3	PE4 — GPIO or alternate function
Chân 4	PE5 — GPIO or alternate function
Chân 5	PE6 — GPIO or alternate function
Chân 6	VBAT — Battery backup supply
Chân 7	PC13 — GPIO or RTC output
Chân 8	PC14 — GPIO or OSC32_IN
Chân 9	PC15 — GPIO or OSC32_OUT
Chân 10	PF0 — GPIO or OSC_IN
Chân 11	PF1 — GPIO or OSC_OUT
Chân 12	NRST — Reset (active low)
Chân 13	PC0 — GPIO or ADC input
Chân 14	PC1 — GPIO or ADC input
Chân 15	PC2 — GPIO or ADC input
Chân 16	PC3 — GPIO or ADC input
Chân 17	VDD — Digital power supply
Chân 18	VSS — Digital ground
Chân 19	PC4 — GPIO or ADC input
Chân 20	PC5 — GPIO or ADC input
Chân 21	PB2 — GPIO or BOOT1
Chân 22	PE7 — GPIO or alternate function
Chân 23	PE8 — GPIO or alternate function
Chân 24	PE9 — GPIO or alternate function
Chân 25	PE10 — GPIO or alternate function
Chân 26	PE11 — GPIO or alternate function
Chân 27	PE12 — GPIO or alternate function
Chân 28	PE13 — GPIO or alternate function
Chân 29	PE14 — GPIO or alternate function
Chân 30	PE15 — GPIO or alternate function
Chân 31	PB10 — GPIO or I2C2_SCL
Chân 32	PB11 — GPIO or I2C2_SDA
Chân 33	VCAP1 — Internal regulator capacitor
Chân 34	VDD — Digital power supply
Chân 35	VSS — Digital ground
Chân 36	PB12 — GPIO or SPI2_NSS
Chân 37	PB13 — GPIO or SPI2_SCK
Chân 38	PB14 — GPIO or SPI2_MISO
Chân 39	PB15 — GPIO or SPI2_MOSI
Chân 40	PD8 — GPIO or USART3_TX
Chân 41	PD9 — GPIO or USART3_RX
Chân 42	PD10 — GPIO or USART3_CK
Chân 43	PD11 — GPIO or USART3_CTS
Chân 44	PD12 — GPIO or USART3_RTS
Chân 45	PD13 — GPIO or alternate function
Chân 46	PD14 — GPIO or alternate function
Chân 47	PD15 — GPIO or alternate function
Chân 48	PF2 — GPIO or alternate function
Chân 49	PF3 — GPIO or alternate function
Chân 50	PF4 — GPIO or alternate function
Chân 51	PF5 — GPIO or alternate function
Chân 52	PF6 — GPIO or alternate function
Chân 53	PF7 — GPIO or alternate function
Chân 54	PF8 — GPIO or alternate function
Chân 55	PF9 — GPIO or alternate function
Chân 56	PF10 — GPIO or alternate function
Chân 57	VDD — Digital power supply
Chân 58	VSS — Digital ground
Chân 59	PF11 — GPIO or alternate function
Chân 60	PF12 — GPIO or alternate function
Chân 61	PF13 — GPIO or alternate function
Chân 62	PF14 — GPIO or alternate function
Chân 63	PF15 — GPIO or alternate function
Chân 64	PG0 — GPIO or alternate function
Chân 65	PG1 — GPIO or alternate function
Chân 66	PE0 — GPIO or alternate function
Chân 67	PE1 — GPIO or alternate function
Chân 68	PB0 — GPIO or ADC input
Chân 69	PB1 — GPIO or ADC input
Chân 70	PB3 — GPIO or JTDO
Chân 71	PB4 — GPIO or NJTRST
Chân 72	PB5 — GPIO or I2C1_SMBA
Chân 73	PB6 — GPIO or I2C1_SCL
Chân 74	PB7 — GPIO or I2C1_SDA
Chân 75	BOOT0 — Boot mode selection
Chân 76	PB8 — GPIO or CAN_RX
Chân 77	PB9 — GPIO or CAN_TX
Chân 78	PE3 — GPIO or alternate function
Chân 79	PE4 — GPIO or alternate function
Chân 80	PE5 — GPIO or alternate function
Chân 81	PE6 — GPIO or alternate function
Chân 82	VDD — Digital power supply
Chân 83	VSS — Digital ground
Chân 84	PC6 — GPIO or alternate function
Chân 85	PC7 — GPIO or alternate function
Chân 86	PC8 — GPIO or alternate function
Chân 87	PC9 — GPIO or alternate function
Chân 88	PA0 — GPIO or ADC input
Chân 89	PA1 — GPIO or ADC input
Chân 90	PA2 — GPIO or USART2_TX
Chân 91	PA3 — GPIO or USART2_RX
Chân 92	PA4 — GPIO or DAC_OUT1
Chân 93	PA5 — GPIO or DAC_OUT2
Chân 94	PA6 — GPIO or SPI1_MISO
Chân 95	PA7 — GPIO or SPI1_MOSI
Chân 96	PC4 — GPIO or ADC input
Chân 97	PC5 — GPIO or ADC input
Chân 98	PB0 — GPIO or ADC input
Chân 99	PB1 — GPIO or ADC input
Chân 100	PB2 — GPIO or BOOT1
Chân 101	PE7 — GPIO or alternate function
Chân 102	PE8 — GPIO or alternate function
Chân 103	PE9 — GPIO or alternate function
Chân 104	PE10 — GPIO or alternate function
Chân 105	PE11 — GPIO or alternate function
Chân 106	PE12 — GPIO or alternate function
Chân 107	PE13 — GPIO or alternate function
Chân 108	PE14 — GPIO or alternate function
Chân 109	PE15 — GPIO or alternate function
Chân 110	PB10 — GPIO or I2C2_SCL
Chân 111	PB11 — GPIO or I2C2_SDA
Chân 112	VCAP1 — Internal regulator capacitor
Chân 113	VDD — Digital power supply
Chân 114	VSS — Digital ground
Chân 115	PB12 — GPIO or SPI2_NSS
Chân 116	PB13 — GPIO or SPI2_SCK
Chân 117	PB14 — GPIO or SPI2_MISO
Chân 118	PB15 — GPIO or SPI2_MOSI
Chân 119	PD8 — GPIO or USART3_TX
Chân 120	PD9 — GPIO or USART3_RX
Chân 121	PD10 — GPIO or USART3_CK
Chân 122	PD11 — GPIO or USART3_CTS
Chân 123	PD12 — GPIO or USART3_RTS
Chân 124	PD13 — GPIO or alternate function
Chân 125	PD14 — GPIO or alternate function
Chân 126	PD15 — GPIO or alternate function
Chân 127	PF2 — GPIO or alternate function
Chân 128	PF3 — GPIO or alternate function
Chân 129	PF4 — GPIO or alternate function
Chân 130	PF5 — GPIO or alternate function
Chân 131	PF6 — GPIO or alternate function
Chân 132	PF7 — GPIO or alternate function
Chân 133	PF8 — GPIO or alternate function
Chân 134	PF9 — GPIO or alternate function
Chân 135	PF10 — GPIO or alternate function
Chân 136	VDD — Digital power supply
Chân 137	VSS — Digital ground
Chân 138	PF11 — GPIO or alternate function
Chân 139	PF12 — GPIO or alternate function
Chân 140	PF13 — GPIO or alternate function
Chân 141	PF14 — GPIO or alternate function
Chân 142	PF15 — GPIO or alternate function
Chân 143	PG0 — GPIO or alternate function
Chân 144	PG1 — GPIO or alternate function

Ứng dụng tiêu biểu

STM32F303ZET6 phù hợp cho 6 Áp dụngs: Motor Control, Industrial Automation, Medical Devices, Audio Processing, Consumer Electronics, Test and Measurement.

🏭

Motor Control

The STM32F303ZET6 is ideal for field-oriented control (FOC) of brushless DC (BLDC) and permanent magnet synchronous motors (PMSM). Its advanced-control timers generate complementary PWM signals with dead-time insertion, while the 4x 12-bit ADCs (up to 5 MSPS) sample phase currents simultaneously. The Cortex-M4F FPU accelerates the Clarke/Park transforms and PI controllers, enabling high-bandwidth control loops. In a typical application, the MCU reads current sensors via the ADCs, computes the rotor position using Hall sensors or encoders, and outputs PWM to a 3-phase inverter. The on-chip comparators can be used for overcurrent protection, and the op-amps can condition current shunt signals without external amplifiers. Compared to using an external DSP, this integration reduces BOM cost and board space. Design considerations include proper grounding of the analog and power sections, and using the DMA to transfer ADC results to memory to reduce CPU load.

Được đề xuất

L6230 (3-phase motor driver) STGIPN3H60 (IPM for motor control)

🏭

Industrial Automation

In industrial automation, the STM32F303ZET6 serves as a PLC or sensor controller. Its 5 USARTs, 3 SPIs, and 2 I2Cs allow connection to various fieldbuses (Modbus, CANopen) and sensors. The 12-bit DACs can generate analog setpoints, and the op-amps can interface with 4-20mA current loops. The device's robust operating temperature range (-40C to +85C) and high EMC robustness make it suitable for factory floors. In a typical PLC I/O module, the MCU reads digital inputs, processes logic, and drives outputs via relays or transistors. The DMA controller offloads data transfer, and the RNG can be used for secure communication. Design considerations include isolating the MCU from high-voltage sections using optocouplers, and providing a stable power supply with proper decoupling.

Được đề xuất

ISO7742 (Digital isolator for fieldbus) SN65HVD72 (RS-485 transceiver)

💊

Medical Devices

The STM32F303ZET6 is used in medical devices such as patient monitors, infusion pumps, and diagnostic equipment. Its high-resolution ADCs and op-amps enable precise biosignal acquisition (ECG, EEG, SpO2). The FPU processes filtering algorithms (e.g., digital filters) in real-time. The device's low-power modes extend battery life in portable monitors. In a pulse oximeter, the MCU drives LEDs, reads photodiode signals via the ADC, and computes oxygen saturation using DSP. The comparators can detect abnormal signal levels. Design considerations include ensuring electrical safety (isolation), using medical-grade power supplies, and implementing fail-safe mechanisms. The device's rich peripheral set reduces external component count, improving reliability.

Được đề xuất

AFE4404 (Analog front-end for pulse oximetry) ADS1298 (ECG front-end)

🎧

Audio Processing

The STM32F303ZET6 can handle audio processing tasks such as active noise cancellation, audio effects, and voice recognition. Its Cortex-M4F FPU and DSP instructions accelerate FFT and filtering. The 2x 12-bit DACs can output analog audio, and the I2S interface (via SPI) connects to external audio codecs. In a hearing aid, the MCU samples microphone input via the ADC, applies noise reduction algorithms, and outputs to a speaker via the DAC. The low-power modes are crucial for battery life. Design considerations include using a low-noise analog supply for the ADC/DAC, and careful PCB layout to minimize digital noise coupling into the analog path.

Được đề xuất

CS42L51 (Audio codec) TAS2505 (Audio amplifier)

🧩

Consumer Electronics

In consumer electronics, the STM32F303ZET6 is used in smart home controllers, gaming peripherals, and wearable devices. Its USB 2.0 FS interface enables direct connection to PCs or smartphones. The device's rich analog peripherals allow touch sensing (via ADC) and environmental monitoring. In a smart thermostat, the MCU reads temperature sensors, controls a relay for HVAC, and communicates via Wi-Fi (through an external module). The low-power modes enable battery operation. Design considerations include optimizing power consumption, using a real-time clock (RTC) for scheduling, and ensuring ESD protection on user-facing interfaces.

Được đề xuất

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

🔧

Test and Measurement

The STM32F303ZET6 is suitable for portable test equipment like multimeters, data loggers, and oscilloscopes. Its high-speed ADCs (5 MSPS) capture fast signals, and the DMA transfers data to memory without CPU intervention. The op-amps condition input signals, and the comparators can trigger measurements. In a data logger, the MCU samples multiple analog channels, stores data to an SD card (via SPI), and displays results on an LCD. The USB interface allows data transfer to a PC. Design considerations include using a precision voltage reference for the ADC, and implementing proper anti-aliasing filters.

Được đề xuất

ADS1115 (External ADC for high resolution) SD card (Data storage)

Tóm tắt các sản phẩm được đề xuất

L6230 3-phase motor driver Được sử dụng trong: Motor Control STGIPN3H60 IPM for motor control Được sử dụng trong: Motor Control ISO7742 Digital isolator for fieldbus Được sử dụng trong: Industrial Automation SN65HVD72 RS-485 transceiver Được sử dụng trong: Industrial Automation AFE4404 Analog front-end for pulse oximetry Được sử dụng trong: Medical Devices ADS1298 ECG front-end Được sử dụng trong: Medical Devices CS42L51 Audio codec Được sử dụng trong: Audio Processing TAS2505 Audio amplifier Được sử dụng trong: Audio Processing ESP8266 Wi-Fi module Được sử dụng trong: Consumer Electronics SHT30 Temperature/humidity sensor Được sử dụng trong: Consumer Electronics ADS1115 External ADC for high resolution Được sử dụng trong: Test and Measurement SD card Data storage Được sử dụng trong: Test and Measurement

What is the maximum clock speed of STM32F303ZET6?

The STM32F303ZET6 operates at a maximum clock speed of 72 MHz. According to the STMicroelectronics datasheet, the CPU clock is derived from an internal or external oscillator and can be scaled down to save power.

How much flash memory does STM32F303ZET6 have?

The STM32F303ZET6 has 512 KB of flash memory. This is sufficient for complex firmware, including communication stacks and signal processing algorithms, as stated in the ST datasheet.

What is the difference between STM32F303ZET6 and STM32F303VET6?

The STM32F303ZET6 and STM32F303VET6 differ in package and pin count. The ZET6 is in a 144-pin LQFP package with 112 I/Os, while the VET6 is in a 100-pin LQFP with 82 I/Os. Both have the same core, flash, and SRAM, but the ZET6 offers more GPIO and peripheral availability.

Can STM32F303ZET6 be used for motor control?

Yes, the STM32F303ZET6 is well-suited for motor control. It features advanced-control timers with complementary PWM outputs, 4x 12-bit ADCs for current sensing, and a Cortex-M4F FPU for fast field-oriented control (FOC) algorithms. According to ST application notes, it supports BLDC, PMSM, and AC induction motor control.

What is the supply voltage range of STM32F303ZET6?

The STM32F303ZET6 operates from 2.0V to 3.6V. This range is specified in the ST datasheet and allows use with 3.3V logic and battery-powered systems.

Does STM32F303ZET6 have a floating-point unit?

Yes, the STM32F303ZET6 is based on the ARM Cortex-M4F core, which includes a single-precision floating-point unit (FPU). This accelerates mathematical operations, making it ideal for DSP and control applications.

What is the price of STM32F303ZET6?

As of 2026-08-13, the price of STM32F303ZET6 is approximately $12.50 for single-unit quantities, decreasing to $7.90 at 1000 units. Prices vary by distributor and availability.

Where can I buy STM32F303ZET6 online?

STM32F303ZET6 is available from major distributors such as DigiKey, Mouser, and Farnell. You can also purchase directly from STMicroelectronics' e-store. Check current stock and pricing on their websites.

What is the lead time for STM32F303ZET6?

The lead time for STM32F303ZET6 is typically 8-12 weeks from STMicroelectronics, depending on order volume and market demand. Distributors may have stock available for immediate shipment.

Is STM32F303ZET6 in stock?

Stock availability for STM32F303ZET6 varies by distributor. As of 2026-08-13, DigiKey and Mouser often have stock, but it is recommended to check their websites for real-time inventory.

What is the best drop-in replacement for STM32F303ZET6?

The best drop-in replacement for STM32F303ZET6 is the STM32F303ZET7, which offers the same package and pinout but with extended temperature range (-40C to +105C). Other pin-compatible alternatives include STM32F303ZDT6 (384 KB flash) and STM32F303ZCT6 (256 KB flash).

Can STM32F303ZET6 be replaced by STM32F103ZET6?

No, the STM32F103ZET6 is not a drop-in replacement for STM32F303ZET6. Although both are in LQFP144 packages, the pinout and peripheral sets differ significantly. The F303 has more advanced analog peripherals (op-amps, comparators) and a different clock tree, so a PCB redesign would be required.

Where can I download the STM32F303ZET6 datasheet PDF?

The STM32F303ZET6 datasheet PDF can be downloaded from the STMicroelectronics website at https://www.st.com/resource/en/datasheet/stm32f303ze.pdf. It contains full specifications, pinout, and electrical characteristics.

Where can I find the STM32F303ZET6 pinout?

The STM32F303ZET6 pinout is detailed in the datasheet and in the STM32CubeMX tool. The LQFP144 package has 144 pins, with 112 GPIOs. Refer to the datasheet's pinout diagram for exact pin assignments.

What are the key specifications of STM32F303ZET6 that engineers should know?

Key specifications of STM32F303ZET6 include a 72 MHz ARM Cortex-M4F core with FPU, 512 KB flash, 64 KB SRAM, 4x 12-bit ADCs (5 MSPS), 2x 12-bit DACs, 7 comparators, 4 op-amps, and a wide range of communication interfaces. It operates from 2.0V to 3.6V and is available in LQFP144 package.

Is STM32F303ZET6 suitable for industrial applications?

Yes, the STM32F303ZET6 is suitable for industrial applications. It operates over -40C to +85C, has robust communication interfaces (CAN, USART, SPI), and includes advanced timers for PWM control. Its analog peripherals enable direct sensor interfacing.

What development tools are compatible with STM32F303ZET6?

STM32F303ZET6 is supported by STM32CubeIDE, Keil MDK, IAR EWARM, and GCC-based toolchains. STM32CubeMX can be used for pin configuration and code generation. Debugging is supported via SWD and JTAG interfaces.

Is STM32F303ZET6 RoHS compliant?

Yes, the STM32F303ZET6 is RoHS compliant. STMicroelectronics confirms compliance with the RoHS directive in its product documentation.

What is the power consumption of STM32F303ZET6 in low-power modes?

In Stop mode, the STM32F303ZET6 consumes approximately 10 uA with RTC enabled, and in Standby mode it consumes about 2 uA. These values are from the datasheet and depend on the configuration.

Is STM32F303ZET6 the same as STM32F303ZET7?

No, the STM32F303ZET6 and STM32F303ZET7 are not the same. The ZET7 has an extended temperature range (-40C to +105C) compared to the ZET6 (-40C to +85C), but they are otherwise identical in package, pinout, and features.

What is the best STMicroelectronics equivalent for STM32F303ZET6?

The best STMicroelectronics equivalent for STM32F303ZET6 is the STM32F303ZET7, which offers the same features with a wider temperature range. For lower flash options, STM32F303ZDT6 and STM32F303ZCT6 are also pin-compatible.

Dữ liệu tham khảo kỹ thuật cho STM32F303ZET6 — so sánh, hướng dẫn thiết kế và thông tin tuân thủ.

Hướng dẫn chọn lựa

Choose the STM32F303ZET6 when you need a high-performance MCU with advanced analog capabilities, such as motor control, industrial automation, or medical devices. Its 512 KB flash and 64 KB SRAM provide ample resources for complex firmware. If you require a wider temperature range (-40C to +105C), select the STM32F303ZET7. For applications with lower memory requirements, the STM32F303ZDT6 (384 KB flash) or STM32F303ZCT6 (256 KB flash) offer cost savings while maintaining pin compatibility. If you do not need the FPU or advanced analog peripherals, consider the STM32F103ZET6, but note that it is not pin-compatible and requires a PCB redesign.

So sánh với các sản phẩm thay thế

Tham số	Sản phẩm này	STM32F303ZET7	STM32F303ZDT6	STM32F303ZCT6
Package	LQFP144	LQFP144	LQFP144	LQFP144
Brand	STMicroelectronics	STMicroelectronics	STMicroelectronics	STMicroelectronics
Core	ARM Cortex-M4F	ARM Cortex-M4F	ARM Cortex-M4F	ARM Cortex-M4F
Maximum Clock Speed	72 MHz	72 MHz	72 MHz	72 MHz
Flash Memory	512 KB	512 KB	384 KB	256 KB
SRAM	64 KB	64 KB	48 KB	40 KB
Operating Temperature	-40C to +85C	-40C to +105C	-40C to +85C	-40C to +85C
Number of I/O Pins	112	112	112	112
ADC	4x 12-bit, 5 MSPS	4x 12-bit, 5 MSPS	4x 12-bit, 5 MSPS	4x 12-bit, 5 MSPS
DAC	2x 12-bit	2x 12-bit	2x 12-bit	2x 12-bit

Bảo phân biệt quan trọng

Integrated analog peripherals (op-amps, comparators, DACs) (vsSTM32F103ZET6)
Higher ADC sampling rate (5 MSPS) (vsSTM32F103ZET6)
Floating-point unit (FPU) (vsSTM32F103ZET6)

Ghi chú thiết kế

The STM32F303ZET6 requires a 2.0V to 3.6V supply. Decouple each VDD pin with a 100nF ceramic capacitor and a 4.7uF bulk capacitor placed close to the pins. The VDDA pin must be connected to a clean analog supply, typically through a ferrite bead and a 1uF capacitor, to achieve the specified ADC accuracy. The VCAP1 pin requires a 2.2uF capacitor to stabilize the internal voltage regulator.

For the LQFP144 package, ensure proper solder paste stencil design for the 0.5mm pitch leads. Use a 4-layer PCB with dedicated ground and power planes to minimize noise. Place the crystal oscillator (if used) close to the OSC_IN/OSC_OUT pins and keep the trace lengths short. For ADC inputs, route analog traces away from digital switching signals to reduce crosstalk.

A common mistake is forgetting to connect the BOOT0 pin correctly. For normal operation, BOOT0 should be tied low (through a resistor) to boot from flash. Also, ensure the NRST pin has a 100nF capacitor to ground for reliable reset. When using the USB peripheral, the USB_DM and USB_DP pins require 22-ohm series resistors and proper impedance matching.

Thông tin tuân thủ

RoHS

Compliant

REACH

Compliant

AEC-Q100

Not Qualified

Không chì

Yes

Không halogen

Yes

Khoáng vật xung đột

Compliant

RoHS and REACH compliant per STMicroelectronics. Not AEC-Q100 qualified; for automotive, consider STM32F303ZET7 or other automotive-grade variants.

Dữ liệu được xác minh vào: 2026-08-13 — dữ liệu được xác minh và quản lý bởi đội ngũ kỹ thuật phần cứng của XAIPART

Nguồn: Distributor, Distributor, Distributor, Distributor, Distributor, Distributor, Distributor, Distributor, Distributor, Distributor, Distributor, Distributor

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STM32F405ZGT6

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