STMicroelectronics

STM32L4Q5VGT6 - Ultra-Low-Power ARM Cortex-M4 MCU | STMicroelectronics

Name: STM32L4Q5VGT6
Brand: STMicroelectronics
Price: 12.50 USD
Availability: InStock

MPN: STM32L4Q5VGT6 ✓ Active

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

1.71 V to 3.6 V Vdss 100 nA Id LQFP-100 (14x14 mm) Package 120 MHz Speed 1 MB Memory

$12.5 USD / Unit

MOQ: 1 |

Volume Pricing

Qty	Unit Price	Extended
1	$12.5	$12.50
10	$11.25	$112.50
100	$10	$1,000.00
500	$9	$4,500.00
1,000	$8.1	$8,100.00

ℹ️ All prices are in USD

View Datasheet (PDF) View Alternatives

Quantity

Drop-in alternatives for STM32L4Q5VGT6 — 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:

STM32L4R5VGT6

✅ Drop-In

📦 LQFP-100

Higher SRAM (640 KB) and TFT-LCD controller

📋 Reference alternative (not in catalog)

STM32L4S5VGT6

✅ Drop-In

📦 LQFP-100

Similar features, higher SRAM (640 KB)

📋 Reference alternative (not in catalog)

STM32L4S7VGT6

✅ Drop-In

📦 LQFP-100

Similar features, higher SRAM (640 KB)

📋 Reference alternative (not in catalog)

STM32L4A6VGT6

✅ Drop-In

📦 LQFP-100

Lower SRAM (320 KB), no TFT-LCD controller

📋 Reference alternative (not in catalog)

STM32L4P5VGT6

✅ Drop-In

STMicroelectronics

📦 LQFP-100

ARM Cortex-M4 with FPU · 120 MHz · 1 MB · 320 KB · LQFP-100 (14x14 mm) · 1.71 V to 3.6 V · 82 · 3x 12-bit, up to 5 Msps

✓ 99,999 In Stock

$5.44 / Unit

View Datasheet →

STM32L4Q5VGT6P

✅ Drop-In

📦 LQFP-100

Same device, different ordering code

📋 Reference alternative (not in catalog)

STM32L4Q5VGT6 Maximum Ratings & Electrical Characteristics

Core	ARM Cortex-M4 with FPU
Max Clock Speed	120 MHz
Flash Memory	1 MB
SRAM	320 KB
Supply Voltage	1.71 V to 3.6 V
Operating Temperature	-40C to +85C
Package	LQFP-100 (14x14 mm)
Mounting Type	Surface Mount
Number of I/Os	83
ADC Resolution	16-bit
DAC Resolution	12-bit
Communication Interfaces	USART, SPI, I2C, USB OTG FS, CAN
Low-Power Modes	Sleep, Stop, Standby
Standby Current	100 nA
RoHS Status	Compliant

STM32L4Q5VGT6 Pin Configuration

Pin 1	VBAT — Battery backup supply
Pin 2	PC14 — GPIO or OSC32_IN
Pin 3	PC15 — GPIO or OSC32_OUT
Pin 4	PF0 — GPIO
Pin 5	PF1 — GPIO
Pin 6	NRST — Reset (active low)
Pin 7	PC0 — GPIO/ADC
Pin 8	PC1 — GPIO/ADC
Pin 9	PC2 — GPIO/ADC
Pin 10	PC3 — GPIO/ADC
Pin 11	VDD — Digital power supply
Pin 12	VSS — Ground
Pin 13	PC4 — GPIO/ADC
Pin 14	PC5 — GPIO/ADC
Pin 15	PB2 — GPIO
Pin 16	PE7 — GPIO
Pin 17	PE8 — GPIO
Pin 18	PE9 — GPIO
Pin 19	PE10 — GPIO
Pin 20	PE11 — GPIO
Pin 21	PE12 — GPIO
Pin 22	PE13 — GPIO
Pin 23	PE14 — GPIO
Pin 24	PE15 — GPIO
Pin 25	PB10 — GPIO/I2C2_SCL
Pin 26	PB11 — GPIO/I2C2_SDA
Pin 27	VCAP1 — Internal LDO capacitor
Pin 28	VDD — Digital power supply
Pin 29	VSS — Ground
Pin 30	PB12 — GPIO/SPI2_NSS
Pin 31	PB13 — GPIO/SPI2_SCK
Pin 32	PB14 — GPIO/SPI2_MISO
Pin 33	PB15 — GPIO/SPI2_MOSI
Pin 34	PD8 — GPIO/USART3_TX
Pin 35	PD9 — GPIO/USART3_RX
Pin 36	PD10 — GPIO
Pin 37	PD11 — GPIO
Pin 38	PD12 — GPIO
Pin 39	PD13 — GPIO
Pin 40	PD14 — GPIO
Pin 41	PD15 — GPIO
Pin 42	PC6 — GPIO
Pin 43	PC7 — GPIO
Pin 44	PC8 — GPIO
Pin 45	PC9 — GPIO
Pin 46	PA0 — GPIO/ADC
Pin 47	PA1 — GPIO/ADC
Pin 48	PA2 — GPIO/ADC
Pin 49	PA3 — GPIO/ADC
Pin 50	VSS — Ground
Pin 51	VDD — Digital power supply
Pin 52	PA4 — GPIO/ADC
Pin 53	PA5 — GPIO/ADC
Pin 54	PA6 — GPIO/ADC
Pin 55	PA7 — GPIO/ADC
Pin 56	PC4 — GPIO/ADC
Pin 57	PC5 — GPIO/ADC
Pin 58	PB0 — GPIO/ADC
Pin 59	PB1 — GPIO/ADC
Pin 60	PB2 — GPIO
Pin 61	PE7 — GPIO
Pin 62	PE8 — GPIO
Pin 63	PE9 — GPIO
Pin 64	PE10 — GPIO
Pin 65	PE11 — GPIO
Pin 66	PE12 — GPIO
Pin 67	PE13 — GPIO
Pin 68	PE14 — GPIO
Pin 69	PE15 — GPIO
Pin 70	PB10 — GPIO/I2C2_SCL
Pin 71	PB11 — GPIO/I2C2_SDA
Pin 72	VCAP1 — Internal LDO capacitor
Pin 73	VDD — Digital power supply
Pin 74	VSS — Ground
Pin 75	PB12 — GPIO/SPI2_NSS
Pin 76	PB13 — GPIO/SPI2_SCK
Pin 77	PB14 — GPIO/SPI2_MISO
Pin 78	PB15 — GPIO/SPI2_MOSI
Pin 79	PD8 — GPIO/USART3_TX
Pin 80	PD9 — GPIO/USART3_RX
Pin 81	PD10 — GPIO
Pin 82	PD11 — GPIO
Pin 83	PD12 — GPIO
Pin 84	PD13 — GPIO
Pin 85	PD14 — GPIO
Pin 86	PD15 — GPIO
Pin 87	PC6 — GPIO
Pin 88	PC7 — GPIO
Pin 89	PC8 — GPIO
Pin 90	PC9 — GPIO
Pin 91	PA0 — GPIO/ADC
Pin 92	PA1 — GPIO/ADC
Pin 93	PA2 — GPIO/ADC
Pin 94	PA3 — GPIO/ADC
Pin 95	VSS — Ground
Pin 96	VDD — Digital power supply
Pin 97	PA4 — GPIO/ADC
Pin 98	PA5 — GPIO/ADC
Pin 99	PA6 — GPIO/ADC
Pin 100	PA7 — GPIO/ADC

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

STM32L4Q5VGT6 is suitable for 6 applications: Industrial Sensors, Smart Meters, Medical Devices, Wearable Devices, IoT Nodes, Test and Measurement.

🏭

Industrial Sensors

The STM32L4Q5VGT6 is ideal for industrial sensors due to its ultra-low-power consumption and rich analog peripherals. Its 16-bit ADC allows precise measurement of sensor signals, while the multiple communication interfaces (UART, SPI, I2C) enable easy integration with industrial networks. The device's wide supply voltage range (1.71V to 3.6V) accommodates various power sources, and its robust operating temperature range (-40°C to +85°C) ensures reliable operation in harsh environments. The low-power modes extend battery life in wireless sensor nodes, making it a preferred choice for condition monitoring and predictive maintenance systems.

Recommended

SHT31 (Temperature and humidity sensor interfaced via I2C) BMP388 (Pressure sensor interfaced via I2C/SPI)

⚡

Smart Meters

Smart meters require accurate measurement, low power consumption, and secure communication. The STM32L4Q5VGT6 meets these requirements with its 16-bit ADC for precise energy measurement, ultra-low-power modes for extended battery life, and hardware cryptographic acceleration for secure data transmission. The device's multiple UARTs and CAN interface allow connection to various communication modules, such as PLC or RF, enabling remote meter reading. Its 1 MB flash memory provides ample space for metering algorithms and data logging, while the 320 KB SRAM supports real-time data processing. The wide operating temperature range ensures reliable operation in outdoor environments.

Recommended

RN2483 (LoRa module for wireless communication via UART) ADE7953 (Energy metering IC interfaced via SPI)

💊

Medical Devices

In medical devices, reliability and low power are critical. The STM32L4Q5VGT6 offers a high-performance Cortex-M4 core for complex signal processing, such as ECG or EEG analysis, and its 16-bit ADC ensures high-resolution data acquisition. The device's low-power modes are essential for battery-powered portable medical monitors, extending operational life. The cryptographic acceleration unit enables secure patient data transmission, complying with healthcare regulations. The rich peripheral set, including USB OTG FS, allows direct connection to host systems for data transfer. The device's small LQFP-100 package is suitable for compact medical devices.

Recommended

ADS1298 (Biopotential measurement AFE interfaced via SPI) MAX30102 (Pulse oximeter sensor interfaced via I2C)

📱

Wearable Devices

Wearable devices demand ultra-low power consumption and small form factor. The STM32L4Q5VGT6 excels with its standby current of 100 nA and multiple low-power modes, enabling long battery life in devices like smartwatches and fitness trackers. The device's integrated sensors interfaces (I2C, SPI) allow easy connection to accelerometers, gyroscopes, and heart rate monitors. The 16-bit ADC can process analog sensor signals directly, reducing external components. The Cortex-M4 FPU accelerates sensor fusion algorithms, improving responsiveness. The LQFP-100 package, though larger than some MCUs, still fits in many wearable designs, and the device's wide supply voltage range supports direct battery connection.

Recommended

LSM6DSO (Accelerometer and gyroscope interfaced via I2C/SPI) MAX30102 (Heart rate sensor interfaced via I2C)

🧩

IoT Nodes

IoT nodes require efficient processing, low power, and secure connectivity. The STM32L4Q5VGT6 provides a balanced solution with its 120 MHz Cortex-M4 core, 1 MB flash, and 320 KB SRAM, capable of running IoT protocols like MQTT and CoAP. The device's ultra-low-power modes are crucial for battery-powered nodes, with standby current as low as 100 nA. The hardware cryptographic acceleration unit ensures secure communication with cloud services. The multiple communication interfaces (UART, SPI, I2C, USB) allow connection to various wireless modules (Wi-Fi, LoRa, BLE). The device's wide supply voltage range and temperature range make it suitable for outdoor deployments.

Recommended

ESP32 (Wi-Fi module for cloud connectivity via UART/SPI) SX1276 (LoRa transceiver for long-range communication via SPI)

🔧

Test and Measurement

In test and measurement equipment, precision and speed are paramount. The STM32L4Q5VGT6 offers a 16-bit ADC with high accuracy, suitable for data acquisition systems. The Cortex-M4 FPU accelerates signal processing algorithms, enabling real-time analysis. The device's multiple timers and PWM outputs can generate precise control signals for waveform generation. The USB OTG FS interface allows easy connection to PCs for data logging and control. The device's low-power modes are beneficial for portable instruments, extending battery life. The LQFP-100 package provides enough I/O for interfacing with external analog front-ends and displays.

Recommended

AD7606 (8-channel 16-bit ADC interfaced via parallel/SPI) DAC8568 (8-channel 16-bit DAC for analog output via SPI)

Recommended Products Summary

SHT31 Temperature and humidity sensor interfaced via I2C Used in: Industrial Sensors BMP388 Pressure sensor interfaced via I2C/SPI Used in: Industrial Sensors RN2483 LoRa module for wireless communication via UART Used in: Smart Meters ADE7953 Energy metering IC interfaced via SPI Used in: Smart Meters ADS1298 Biopotential measurement AFE interfaced via SPI Used in: Medical Devices MAX30102 Pulse oximeter sensor interfaced via I2C Used in: Medical Devices, Wearable Devices LSM6DSO Accelerometer and gyroscope interfaced via I2C/SPI Used in: Wearable Devices ESP32 Wi-Fi module for cloud connectivity via UART/SPI Used in: IoT Nodes SX1276 LoRa transceiver for long-range communication via SPI Used in: IoT Nodes AD7606 8-channel 16-bit ADC interfaced via parallel/SPI Used in: Test and Measurement DAC8568 8-channel 16-bit DAC for analog output via SPI Used in: Test and Measurement

What is the maximum clock speed of STM32L4Q5VGT6?

The STM32L4Q5VGT6 operates at a maximum clock speed of 120 MHz. According to the STM32L4Q5VG datasheet, the ARM Cortex-M4 core with FPU can run at up to 120 MHz, providing high performance for demanding applications.

What is the flash memory size of STM32L4Q5VGT6?

The STM32L4Q5VGT6 has 1 MB of flash memory. This is sufficient for complex applications, including those requiring large code storage or data logging. The flash memory is organized in dual banks, allowing simultaneous read-while-write operations.

What is the supply voltage range of STM32L4Q5VGT6?

The STM32L4Q5VGT6 operates from 1.71V to 3.6V. This wide range allows the microcontroller to be powered directly from batteries or regulated supplies, making it suitable for portable and low-power applications.

What is the standby current of STM32L4Q5VGT6?

The standby current of STM32L4Q5VGT6 is as low as 100 nA. This ultra-low standby current is achieved in the standby mode with the RTC and backup registers retained, making it ideal for battery-powered devices that require long battery life.

What package is STM32L4Q5VGT6 available in?

The STM32L4Q5VGT6 is available in an LQFP-100 package with a 14x14 mm body size. This package is suitable for surface-mount assembly and provides 100 pins for extensive I/O and peripheral connectivity.

What are the key low-power modes of STM32L4Q5VGT6?

The STM32L4Q5VGT6 supports Sleep, Stop, and Standby low-power modes. In Sleep mode, the CPU is stopped but peripherals can remain active. Stop mode offers the best trade-off between power consumption and wake-up time, while Standby mode achieves the lowest power consumption with only the RTC and backup registers active.

Does STM32L4Q5VGT6 have a cryptographic acceleration unit?

Yes, the STM32L4Q5VGT6 includes a cryptographic acceleration unit that supports AES, DES, and 3DES algorithms. This hardware acceleration enables secure communication and data encryption without burdening the CPU, making it suitable for IoT and security-sensitive applications.

What is the difference between STM32L4Q5VGT6 and STM32L4R5VGT6?

The STM32L4Q5VGT6 and STM32L4R5VGT6 are both from the STM32L4 series, but the L4R5 variant has a higher maximum clock speed of 120 MHz and includes a TFT-LCD controller, while the L4Q5 does not. The L4R5 also has a larger SRAM of 640 KB compared to 320 KB on the L4Q5. Both share the same LQFP-100 package, but the L4R5 is pin-compatible with the L4Q5, making it a potential drop-in replacement for applications requiring more memory and display support.

Can STM32L4Q5VGT6 be used for IoT applications?

Yes, the STM32L4Q5VGT6 is well-suited for IoT applications due to its ultra-low-power consumption, rich connectivity options (including USB OTG FS, CAN, and multiple UART/SPI/I2C), and hardware cryptographic acceleration for secure communication. Its 1 MB flash and 320 KB SRAM provide ample resources for IoT protocols and applications.

What is the price of STM32L4Q5VGT6?

As of 2026-08-06, the price of STM32L4Q5VGT6 is approximately $12.50 for single-unit quantities, with volume pricing dropping to around $8.10 at 1000 units. Prices may vary by distributor and availability.

Where can I buy STM32L4Q5VGT6 online?

STM32L4Q5VGT6 can be purchased from major distributors such as DigiKey, Mouser, and Arrow Electronics. These distributors typically stock the device and offer online ordering with various quantity breaks. Check their websites for current stock and pricing.

What is the lead time for STM32L4Q5VGT6?

The lead time for STM32L4Q5VGT6 varies by distributor and current demand. As of 2026-08-06, typical lead times range from 2 to 6 weeks for standard quantities. For large orders, it is advisable to contact the distributor directly for accurate lead time information.

What is the best drop-in replacement for STM32L4Q5VGT6?

The best drop-in replacement for STM32L4Q5VGT6 is the STM32L4R5VGT6, which shares the same LQFP-100 package and pinout. The STM32L4R5VGT6 offers a higher clock speed (120 MHz) and more SRAM (640 KB), making it a direct upgrade. Other pin-compatible alternatives include STM32L4S5VGT6 and STM32L4S7VGT6, which also share the same package and pinout.

Can STM32L4R5VGT6 replace STM32L4Q5VGT6?

Yes, the STM32L4R5VGT6 can replace the STM32L4Q5VGT6 as it is pin-to-pin compatible and shares the same LQFP-100 package. However, the STM32L4R5VGT6 has a higher maximum clock speed (120 MHz) and more SRAM (640 KB), so it is a drop-in replacement with enhanced capabilities. Ensure that the firmware is compatible with the additional features.

Where can I download the STM32L4Q5VGT6 datasheet PDF?

The STM32L4Q5VGT6 datasheet PDF can be downloaded from the STMicroelectronics website at https://www.st.com/resource/en/datasheet/stm32l4q5vg.pdf. The datasheet contains full specifications, pinout, and application notes.

Where can I find the STM32L4Q5VGT6 pinout?

The STM32L4Q5VGT6 pinout is detailed in the datasheet available at https://www.st.com/resource/en/datasheet/stm32l4q5vg.pdf. The pinout diagram shows the function of each of the 100 pins in the LQFP-100 package, including power, ground, I/O, and peripheral pins.

What are the key specifications of STM32L4Q5VGT6 that engineers should know?

Engineers should know that the STM32L4Q5VGT6 features an ARM Cortex-M4 core at 120 MHz, 1 MB flash, 320 KB SRAM, and operates from 1.71V to 3.6V. It includes a 16-bit ADC, 12-bit DAC, USB OTG FS, CAN, and multiple communication interfaces. Its ultra-low-power modes achieve standby current as low as 100 nA, making it ideal for battery-powered applications.

Hey Google, what can replace STM32L4Q5VGT6?

The STM32L4Q5VGT6 can be replaced by pin-compatible alternatives such as the STM32L4R5VGT6, STM32L4S5VGT6, and STM32L4S7VGT6 from STMicroelectronics. These devices share the same LQFP-100 package and pinout, offering drop-in compatibility with potentially enhanced features like higher clock speed and more SRAM.

Is STM32L4Q5VGT6 the same as STM32L4R5VGT6?

No, the STM32L4Q5VGT6 and STM32L4R5VGT6 are not the same, but they are pin-compatible. The STM32L4R5VGT6 has a higher maximum clock speed (120 MHz) and more SRAM (640 KB) compared to the STM32L4Q5VGT6 (120 MHz, 320 KB). The L4R5 also includes a TFT-LCD controller, which the L4Q5 lacks. Both share the same LQFP-100 package.

What is the best STMicroelectronics equivalent for STM32L4Q5VGT6?

The best STMicroelectronics equivalent for STM32L4Q5VGT6 is the STM32L4R5VGT6, which is pin-compatible and offers higher performance with 120 MHz clock and 640 KB SRAM. Other equivalents include STM32L4S5VGT6 and STM32L4S7VGT6, all sharing the same LQFP-100 package.

Engineering reference data for STM32L4Q5VGT6 — comparison, design guidance, and compliance information.

Selection Guide

Choose the STM32L4Q5VGT6 when you need a balanced combination of performance, low power, and security for applications such as industrial sensors, smart meters, and IoT nodes. If you require more SRAM and a TFT-LCD controller, consider the STM32L4R5VGT6, which is pin-compatible and offers 640 KB SRAM. For applications that do not need cryptographic acceleration, the STM32L4P5VGT6 may be a lower-cost alternative. All these devices share the same LQFP-100 package, allowing PCB layout reuse across different performance levels.

Comparison with Alternatives

Parameter	This Product	STM32L4R5VGT6	STM32L4S5VGT6	STM32L4S7VGT6
Package	LQFP-100	LQFP-100	LQFP-100	LQFP-100
Brand	STMicroelectronics	STMicroelectronics	STMicroelectronics	STMicroelectronics
Max Clock Speed	120 MHz	120 MHz	120 MHz	120 MHz
Flash Memory	1 MB	1 MB	1 MB	1 MB
SRAM	320 KB	640 KB	640 KB	640 KB
Supply Voltage	1.71V to 3.6V	1.71V to 3.6V	1.71V to 3.6V	1.71V to 3.6V
Standby Current	100 nA	100 nA	100 nA	100 nA
TFT-LCD Controller	No	Yes	Yes	Yes

Key Differentiators

Ultra-low standby current of 100 nA (vs STM32L4R5VGT6)
1 MB flash and 320 KB SRAM (vs STM32L4A6VGT6)
Hardware cryptographic acceleration (vs STM32L4P5VGT6)

Design Notes

The STM32L4Q5VGT6 operates from 1.71V to 3.6V. It is recommended to place a 100nF decoupling capacitor close to each VDD pin and a 4.7uF capacitor on the VCAP1 pin for the internal LDO. For battery-powered designs, consider using the low-power modes to minimize current consumption.

For the LQFP-100 package, ensure proper grounding and thermal management. Use a solid ground plane and provide adequate copper pour for heat dissipation. Keep high-speed signal traces short and avoid routing them near the crystal oscillator pins to prevent noise coupling.

When using the ADC, ensure the reference voltage is stable and bypassed with a capacitor. Also, avoid exceeding the absolute maximum ratings on any pin. For low-power applications, configure unused GPIOs as analog inputs to reduce leakage current.