STMicroelectronics

STM32L073VZT6 - 192KB Flash, 32MHz ARM Cortex-M0+ MCU | STMicroelectronics

Name: STM32L073VZT6
Brand: STMicroelectronics
Price: 4.16 USD
Availability: InStock

MPN: STM32L073VZT6 ✓ Active

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1.8 V to 3.6 V Vdss 0.29 uA Id LQFP-100 (14x14 mm) Package 32 MHz Speed 192 KB Memory

From $4.16 USD / Unit

MOQ: 1 |

Price updated: 2026-08-17

Volume Pricing

Qty	Unit Price	Extended
1	$6.5	$6.50
10	$5.85	$58.50
100	$5.2	$520.00
500	$4.68	$2,340.00
1,000	$4.16	$4,160.00

ℹ️ All prices are in USD

View Datasheet (PDF) View Alternatives

Quantity

Drop-in alternatives for STM32L073VZT6 — 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:

STM32L073VBT6

✅ Drop-In

📦 LQFP-100

Same package and pinout, but 128 KB Flash instead of 192 KB

📋 Reference alternative (not in catalog)

STM32L073VCT6

✅ Drop-In

📦 LQFP-100

Same package and pinout, but 256 KB Flash instead of 192 KB

📋 Reference alternative (not in catalog)

STM32L071VZT6

✅ Drop-In

📦 LQFP-100

Same package and pinout, but no USB and less RAM (20 KB vs 20 KB, but no USB)

📋 Reference alternative (not in catalog)

STM32L072VZT6

✅ Drop-In

STMicroelectronics

📦 LQFP-100

ARM Cortex-M0+ · 32 MHz · 192 KB · 20 KB · 1.8 V to 3.6 V · LQFP100 (14x14 mm) · 84 · 12-bit, 16 channels, 1 Msps

✓ In Stock

$5.44 / Unit

View Datasheet →

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.

STM32L073VZT6 Maximum Ratings & Electrical Characteristics

Core	ARM Cortex-M0+
Maximum Frequency	32 MHz
Flash Memory	192 KB
RAM	20 KB
Package	LQFP-100 (14x14 mm)
Supply Voltage	1.8 V to 3.6 V
Operating Temperature	-40C to +85C
Standby Current	0.29 uA
ADC Resolution	12-bit
ADC Sampling Rate	1.14 Msps
Communication Interfaces	USART, SPI, I2C, USB 2.0 Full-Speed
LCD Driver	Up to 8x40 segments
Real-Time Clock	Yes (with calendar)
Process Technology	40 nm
RoHS Status	Compliant

STM32L073VZT6 Pin Configuration

Pin 1	VDD — Power supply
Pin 2	VSS — Ground
Pin 3	PA0 — GPIO / ADC input
Pin 4	PA1 — GPIO / ADC input
Pin 5	PA2 — GPIO / USART2_TX
Pin 6	PA3 — GPIO / USART2_RX
Pin 7	PA4 — GPIO / SPI1_NSS
Pin 8	PA5 — GPIO / SPI1_SCK
Pin 9	PA6 — GPIO / SPI1_MISO
Pin 10	PA7 — GPIO / SPI1_MOSI
Pin 11	PB0 — GPIO / ADC input
Pin 12	PB1 — GPIO / ADC input
Pin 13	PB2 — GPIO / BOOT1
Pin 14	PB3 — GPIO / SWO
Pin 15	PB4 — GPIO / NJTRST
Pin 16	PB5 — GPIO / I2C1_SMBA
Pin 17	PB6 — GPIO / I2C1_SCL
Pin 18	PB7 — GPIO / I2C1_SDA
Pin 19	PB8 — GPIO / I2C1_SCL
Pin 20	PB9 — GPIO / I2C1_SDA

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

STM32L073VZT6 is suitable for 6 applications: Smart Meters, Industrial Sensors, Portable Medical Devices, IoT Endpoints, Smart Home Devices, Wearable Devices.

⚡

Smart Meters

The STM32L073VZT6 is ideal for smart meters due to its integrated LCD driver, ultra-low-power modes, and multiple communication interfaces. It can handle metering calculations, display updates, and wireless communication while maintaining low average power consumption. The 12-bit ADC with hardware oversampling ensures accurate measurement of voltage and current. The device's 0.29 uA standby current extends battery life, and the 32 MHz Cortex-M0+ core provides sufficient processing power for real-time metering algorithms. The LCD driver supports up to 8x40 segments, enabling a clear display of consumption data. Communication interfaces like USART and SPI allow integration with PLC or RF modules for remote data collection. The wide operating voltage range (1.8V to 3.6V) accommodates various power supply designs, including battery and energy harvesting. Overall, the STM32L073VZT6 provides a cost-effective, energy-efficient solution for smart metering applications.

Recommended

SX1276 (LoRa transceiver for wireless communication) RN2483 (LoRa module for remote data transmission)

🏭

Industrial Sensors

The STM32L073VZT6 is well-suited for industrial sensors that require low power consumption and reliable operation in harsh environments. Its 12-bit ADC with hardware oversampling enables precise measurement of analog signals from temperature, pressure, or flow sensors. The device's multiple USART, SPI, and I2C interfaces allow easy connection to external sensors and actuators. The ultra-low-power modes, including a 0.29 uA standby current, are critical for battery-powered or energy-harvesting sensor nodes. The wide operating temperature range (-40C to +85C) ensures reliable operation in industrial settings. The Cortex-M0+ core provides efficient processing for sensor data fusion and communication protocols. The integrated LCD driver can be used for local display of sensor readings, reducing the need for external display components. Overall, the STM32L073VZT6 offers a compact, low-power solution for industrial sensor applications.

Recommended

HTS221 · STMicroelectronics LPS22HB (Pressure sensor)

💊

Portable Medical Devices

The STM32L073VZT6 is an excellent choice for portable medical devices such as glucose meters, pulse oximeters, and wearable health monitors. Its ultra-low-power consumption, with a 0.29 uA standby current, extends battery life, which is crucial for devices that need to operate for months on a single charge. The 12-bit ADC with hardware oversampling provides high-resolution measurements for biosignals. The device's small footprint and rich peripheral set, including USB 2.0 Full-Speed, enable data transfer to a host for analysis. The LCD driver can be used to display vital signs directly on the device. The Cortex-M0+ core is efficient enough to run signal processing algorithms while maintaining low power. The wide operating voltage range (1.8V to 3.6V) allows direct battery operation. Overall, the STM32L073VZT6 provides a reliable, low-power platform for portable medical applications.

Recommended

MAX30102 (Pulse oximeter and heart-rate sensor) ADS1115 (16-bit ADC for precise biosignal measurement)

🧩

IoT Endpoints

The STM32L073VZT6 is a popular choice for IoT endpoints due to its ultra-low-power modes and rich connectivity options. It can operate for years on a single battery, making it ideal for wireless sensor nodes, smart home devices, and asset trackers. The device supports multiple communication interfaces, including USART, SPI, I2C, and USB, allowing easy integration with Wi-Fi, Bluetooth, or LoRa modules. The 32 MHz Cortex-M0+ core provides sufficient processing power for edge computing tasks, such as data filtering and protocol handling. The 12-bit ADC enables analog sensor interfacing, while the LCD driver can be used for local displays. The device's low standby current (0.29 uA) ensures minimal power draw during idle periods. The wide operating voltage range (1.8V to 3.6V) accommodates various battery configurations. Overall, the STM32L073VZT6 is a versatile, energy-efficient MCU for IoT endpoint applications.

Recommended

ESP8266 (Wi-Fi module for internet connectivity) nRF24L01 (2.4 GHz transceiver for wireless communication)

🏠

Smart Home Devices

The STM32L073VZT6 is well-suited for smart home devices such as thermostats, smart locks, and lighting controls. Its ultra-low-power consumption ensures long battery life for battery-powered devices, while its rich peripheral set enables connectivity with sensors and actuators. The integrated LCD driver can be used for user interfaces, and the multiple communication interfaces allow integration with home automation protocols like Zigbee or Z-Wave via external modules. The 12-bit ADC with hardware oversampling provides accurate analog measurements for temperature or light sensors. The Cortex-M0+ core is efficient enough to handle control algorithms and communication stacks. The device's wide operating voltage range (1.8V to 3.6V) supports various power supply designs. Overall, the STM32L073VZT6 offers a low-power, feature-rich solution for smart home applications.

Recommended

CC2530 (Zigbee SoC for wireless networking) MCP23017 (I/O expander for additional GPIOs)

📱

Wearable Devices

The STM32L073VZT6 is an ideal MCU for wearable devices like fitness trackers and smartwatches due to its ultra-low-power consumption and small form factor. The 0.29 uA standby current extends battery life, which is critical for wearables that need to last days or weeks on a small battery. The 12-bit ADC with hardware oversampling enables accurate measurement of biometric signals, such as heart rate or skin conductance. The device's multiple communication interfaces, including USB and I2C, allow connection to sensors and wireless modules. The LCD driver can be used for a simple display, and the Cortex-M0+ core is efficient enough to run real-time algorithms. The wide operating voltage range (1.8V to 3.6V) supports coin cell batteries. Overall, the STM32L073VZT6 provides a low-power, compact solution for wearable applications.

Recommended

LIS3DH (3-axis accelerometer for motion tracking) BME280 (Environmental sensor for temperature, humidity, and pressure)

Recommended Products Summary

SX1276 LoRa transceiver for wireless communication Used in: Smart Meters RN2483 LoRa module for remote data transmission Used in: Smart Meters HTS221 STMicroelectronics Used in: Industrial Sensors LPS22HB Pressure sensor Used in: Industrial Sensors MAX30102 Pulse oximeter and heart-rate sensor Used in: Portable Medical Devices ADS1115 16-bit ADC for precise biosignal measurement Used in: Portable Medical Devices ESP8266 Wi-Fi module for internet connectivity Used in: IoT Endpoints nRF24L01 2.4 GHz transceiver for wireless communication Used in: IoT Endpoints CC2530 Zigbee SoC for wireless networking Used in: Smart Home Devices MCP23017 I/O expander for additional GPIOs Used in: Smart Home Devices LIS3DH 3-axis accelerometer for motion tracking Used in: Wearable Devices BME280 Environmental sensor for temperature, humidity, and pressure Used in: Wearable Devices

What is the maximum clock frequency of STM32L073VZT6?

The STM32L073VZT6 operates at a maximum clock frequency of 32 MHz. According to the STMicroelectronics datasheet (STM32L073VZ), this is achieved using an external crystal or the internal 16 MHz RC oscillator with PLL. The Cortex-M0+ core is optimized for low power, making this frequency sufficient for most battery-powered applications.

How much Flash memory does STM32L073VZT6 have?

The STM32L073VZT6 has 192 KB of Flash memory. This is part of the STM32L0 series, which offers a range of Flash sizes from 16 KB to 192 KB. The 192 KB variant provides ample space for application code, data logging, and firmware updates in IoT and smart meter applications.

What is the standby current of STM32L073VZT6?

The STM32L073VZT6 has a standby current of 0.29 uA. This ultra-low power consumption is achieved through the device's low-power modes, including Stop and Standby modes. According to the datasheet, this makes it ideal for battery-powered devices that need to operate for years on a single coin cell.

What is the operating voltage range of STM32L073VZT6?

The STM32L073VZT6 operates from 1.8V to 3.6V. This wide voltage range allows direct operation from two alkaline batteries or a single lithium-ion cell. The device includes an internal voltage regulator that maintains stable operation across this range, as specified in the STM32L073VZ datasheet.

Does STM32L073VZT6 have a built-in LCD driver?

Yes, the STM32L073VZT6 integrates an LCD driver that supports up to 8x40 segments. This feature is particularly useful for smart meters and portable instruments that require a local display without an external driver IC. The LCD driver is configurable and can be powered in low-power modes to minimize consumption.

What communication interfaces are available on STM32L073VZT6?

The STM32L073VZT6 supports USART, SPI, I2C, and USB 2.0 Full-Speed interfaces. These provide flexible connectivity for sensors, displays, and host communication. The USB interface is device-only and can be used for firmware updates or data transfer, as detailed in the STM32L073VZ datasheet.

What is the ADC resolution and sampling rate of STM32L073VZT6?

The STM32L073VZT6 features a 12-bit ADC with a maximum sampling rate of 1.14 Msps. It also supports hardware oversampling, which can increase effective resolution for low-frequency signals. This makes it suitable for precise analog measurements in industrial and medical applications.

Is STM32L073VZT6 suitable for battery-powered IoT devices?

Yes, the STM32L073VZT6 is highly suitable for battery-powered IoT devices due to its ultra-low-power modes, including a 0.29 uA standby current and a 32 MHz Cortex-M0+ core that balances performance and efficiency. Its rich peripheral set, including USB and multiple communication interfaces, enables wireless module integration for IoT endpoints.

What is the difference between STM32L073VZT6 and STM32L073RZT6?

The STM32L073VZT6 and STM32L073RZT6 differ in package and pin count: the VZT6 is in a 100-pin LQFP, while the RZT6 is in a 64-pin LQFP. Both have the same core, Flash, and RAM, but the 100-pin variant offers more GPIOs and peripherals. They are not pin-compatible, so PCB redesign is required when switching between them.

Can STM32L073VZT6 be used for smart meter applications?

Yes, the STM32L073VZT6 is ideal for smart meters due to its integrated LCD driver, ultra-low-power modes, and multiple communication interfaces. It can handle metering calculations, display updates, and wireless communication while maintaining low average power consumption, making it a common choice in this application.

What is the price of STM32L073VZT6?

As of 2026-08-14, the price of STM32L073VZT6 is approximately $6.50 for single-unit quantities, decreasing to around $4.16 at 1000 units. Prices are indicative and may vary by distributor and order volume. Check DigiKey or Mouser for current pricing and availability.

Where can I buy STM32L073VZT6 online?

STM32L073VZT6 is available from major distributors such as DigiKey and Mouser. You can search for the part number on their websites to check stock and pricing. As of 2026-08-14, it is in active production and generally available, but lead times may vary.

What is the lead time for STM32L073VZT6?

The lead time for STM32L073VZT6 is typically 2-4 weeks from major distributors, depending on stock levels. As of 2026-08-14, it is an active product, so lead times are generally short. For large orders, contact distributors for accurate lead time estimates.

What is the best drop-in replacement for STM32L073VZT6?

The best drop-in replacement for STM32L073VZT6 is the STM32L073VBT6, which shares the same LQFP-100 package and pinout but has 128 KB Flash instead of 192 KB. If more Flash is needed, the STM32L073VZT6 itself is the top variant. For cross-brand alternatives, the NXP LPC845 is not pin-compatible, so it is not a drop-in replacement.

Can STM32L073RZT6 replace STM32L073VZT6?

No, the STM32L073RZT6 cannot directly replace STM32L073VZT6 because it has a different package (LQFP-64 vs LQFP-100) and pinout. While they share the same core and memory, the PCB must be redesigned to accommodate the smaller package. For a drop-in replacement, choose a variant with the same LQFP-100 package.

Where can I download the STM32L073VZT6 datasheet PDF?

The STM32L073VZT6 datasheet PDF can be downloaded from the STMicroelectronics website at https://www.st.com/resource/en/datasheet/stm32l073vz.pdf. This official datasheet contains full specifications, pinout, and application notes.

What is the pinout of STM32L073VZT6?

The STM32L073VZT6 pinout is detailed in the datasheet, with 100 pins in an LQFP package. Key pins include VDD (power), VSS (ground), NRST (reset), and various GPIO/alternate function pins. The full pinout is available in the official datasheet at https://www.st.com/resource/en/datasheet/stm32l073vz.pdf.

What are the key specifications of STM32L073VZT6 that engineers should know?

The STM32L073VZT6 is an ultra-low-power ARM Cortex-M0+ MCU with 192 KB Flash, 20 KB RAM, and a 32 MHz maximum clock. It operates from 1.8V to 3.6V, has a 0.29 uA standby current, a 12-bit ADC with 1.14 Msps, and supports USART, SPI, I2C, and USB 2.0 Full-Speed. It also integrates an LCD driver for up to 8x40 segments, making it ideal for smart meters and IoT devices.

Hey Google, what can replace STM32L073VZT6?

The STM32L073VZT6 can be replaced by the STM32L073VBT6 (same package, less Flash) or the STM32L073VCT6 (same package, more Flash). For cross-brand options, the NXP LPC845 is a functional equivalent but not pin-compatible, so it requires PCB changes. Always verify pin compatibility before substitution.

Is STM32L073VZT6 the same as STM32L073VBT6?

No, the STM32L073VZT6 and STM32L073VBT6 are not the same. They share the same LQFP-100 package and pinout, but the VZT6 has 192 KB Flash while the VBT6 has 128 KB Flash. The VZT6 is a higher-memory variant, making it a drop-in upgrade for applications needing more code storage.

What is the best NXP equivalent for STM32L073VZT6?

The best NXP equivalent for STM32L073VZT6 is the LPC845, which is a Cortex-M0+ MCU with similar low-power features. However, it is not pin-compatible and comes in a different package (LQFP-48 or LQFP-64), so it is not a drop-in replacement. For a true drop-in, stick with STM32L0 series variants.

Engineering reference data for STM32L073VZT6 — comparison, design guidance, and compliance information.

Selection Guide

Choose the STM32L073VZT6 when you need a low-power MCU with a large Flash memory (192 KB), USB connectivity, and an integrated LCD driver. It is ideal for smart meters, IoT endpoints, and portable medical devices. If you do not need USB, consider the STM32L071VZT6, which is pin-compatible but lacks USB. If you need more Flash (256 KB), the STM32L073VCT6 is a drop-in upgrade. For applications requiring a smaller package, the STM32L073RZT6 (LQFP-64) is an option but requires PCB redesign. Cross-brand alternatives like the NXP LPC845 are not pin-compatible and should only be considered for new designs.

Comparison with Alternatives

Parameter	This Product	STM32L073VBT6	STM32L073VCT6	STM32L071VZT6	STM32L072VZT6	LPC845
Package	LQFP-100	LQFP-100	LQFP-100	LQFP-100	LQFP-100	LQFP-48
Brand	STMicroelectronics	STMicroelectronics	STMicroelectronics	STMicroelectronics	STMicroelectronics	NXP Semiconductors
Flash Memory	192 KB	128 KB	256 KB	192 KB	192 KB	64 KB
RAM	20 KB	20 KB	20 KB	20 KB	20 KB	16 KB
Maximum Frequency	32 MHz	32 MHz	32 MHz	32 MHz	32 MHz	30 MHz
Standby Current	0.29 uA	0.29 uA	0.29 uA	0.29 uA	0.29 uA	0.5 uA
USB Interface	Yes (Full-Speed)	Yes (Full-Speed)	Yes (Full-Speed)	No	Yes (Full-Speed)	No
LCD Driver	Yes (8x40)	Yes (8x40)	Yes (8x40)	No	No	No

Key Differentiators

Integrated LCD driver supporting up to 8x40 segments (vs STM32L072VZT6)
USB 2.0 Full-Speed interface (vs STM32L071VZT6)
192 KB Flash memory (vs STM32L073VBT6)

Design Notes

For ultra-low-power operation, use the device's low-power modes (Sleep, Stop, Standby) appropriately. In Standby mode, the current is only 0.29 uA, but all SRAM contents are lost. Use the RTC to wake the device periodically. Ensure the power supply is stable and decoupled with a 100nF capacitor near each VDD pin and a 4.7uF bulk capacitor on the main supply.

Place decoupling capacitors as close as possible to the VDD and VSS pins to minimize noise and ensure stable operation. For the LQFP-100 package, use a 100nF ceramic capacitor for each VDD pin and a 4.7uF tantalum or ceramic capacitor for the main supply. Also, provide a solid ground plane to reduce EMI and improve signal integrity.

When using the internal RC oscillator, be aware of its accuracy (typically +/-1% after calibration). For applications requiring precise timing, use an external crystal. Also, ensure the BOOT0 pin is configured correctly to avoid accidental bootloader entry. Finally, do not exceed the absolute maximum ratings for VDD (3.6V) to prevent damage.