My Inquiry
My Account
STMicroelectronics STM32L073V8T6
- Part No.:
- STM32L073V8T6
- Manufacturer:
- STMicroelectronics
- Category:
- Microcontrollers
- Package:
- 100-LQFP
- Datasheet:
-
STM32L073V8T6.pdf
- Description:
- IC MCU 32BIT 64KB FLASH 100LQFP
- Quantity:
- Payment:
- Shipping:
Inventory:273
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
STM32L073V8T6 from STMicroelectronics is an ultra-low-power 32-bit Arm® Cortex®-M0+ microcontroller with 192 KB Flash, 20 KB SRAM, 6 KB EEPROM, integrated LCD driver, USB 2.0 (crystal-less), and dual 12-bit DACs - deployed in battery-powered IoT sensors, portable medical devices, and smart utility meters requiring sub-1 µA Stop mode operation and 5 µs Flash wakeup.
For engineers reviewing the STM32L073V8T6 datasheet, STM32L073V8T6 pinout, STM32L073V8T6 application, or STM32L073V8T6 equivalent, key selection criteria include verified 0.43 µA Stop mode current, 12-bit ADC at 1.14 Msps across 16 channels, USB crystal-less timing accuracy, LCD segment drive capability (up to 4×52), and 78 5V-tolerant I/Os in LQFP100 package.
Technical Context
The STM32L073V8T6 integrates a Cortex-M0+ core with MPU, supporting dynamic voltage scaling and multiple low-power modes (Standby: 0.29 µA; Stop + RTC + RAM retention: 0.86 µA). Its clock system combines HSI16 (±1%), HSI48 (self-calibrated for USB), LSE (32 kHz RTC), and PLL for CPU up to 32 MHz.
Analog subsystem includes two independent 12-bit DACs with output buffers (operable down to 1.8 V), a 12-bit ADC (1.14 Msps, 16-channel, down to 1.65 V), two ultra-low-power comparators with window mode and wake-up capability, and a capacitive touch sensing controller supporting 24 channels.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core | Arm Cortex-M0+ @ up to 32 MHz; 0.95 DMIPS/MHz - enables real-time control with minimal power overhead. |
| Memory | 192 KB Flash with ECC & read-while-write; 20 KB SRAM; 6 KB EEPROM with ECC - supports firmware updates and data logging without external storage. |
| Low-Power Performance | 0.43 µA Stop mode; 0.86 µA Stop + RTC + 20 KB RAM retention; 93 µA/MHz Run mode - extends coin-cell battery life to multi-year operation. |
| Analog Peripherals | 12-bit ADC (1.14 Msps, 16 ch); 2× 12-bit DACs w/ buffers; 2× ultra-low-power comparators - enables sensor signal conditioning and analog output without external ICs. |
| Connectivity | USB 2.0 crystal-less interface; 4× USART (2 ISO 7816/IrDA); 6× SPI (16 Mbit/s); 3× I2C (2 SMBus/PMBus) - supports secure wired communication and peripheral expansion. |
| Package & I/O | LQFP100 (14×14 mm); 78 I/Os 5V-tolerant - simplifies PCB layout and interoperability with legacy 5V logic. |
| LCD Driver | Supports up to 4×52 or 8×48 segments with on-board step-up converter and contrast control - eliminates external LCD bias supply. |
Pinout & Package
LQFP100 package (14 × 14 mm, 0.5 mm pitch), RoHS-compliant, ECOPACK2 certified, with exposed thermal pad for enhanced thermal dissipation in compact industrial enclosures.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDD, VSS | Main power supply and ground | 1.65–3.6 V operation; decoupling required per datasheet Section 6.1.6 for stable low-power mode entry. |
| PA0–PA15, PB0–PB15, PC0–PC15, PD0–PD15, PE0–PE7, PH0–PH1 | General-purpose I/Os | 78 pins 5V-tolerant; support 16 alternate functions including TIM, ADC, DAC, USART, SPI, I2C, USB, LCD - enables flexible peripheral mapping. |
| VBAT | Backup power supply | Supplies RTC and 20-byte backup registers during main power loss - critical for timekeeping in energy-harvesting systems. |
| NRST | Active-low reset input | Internal BOR/POR with 5 selectable thresholds; supports external reset assertion and SW-DP debug recovery. |
| USB_DP / USB_DM | USB 2.0 differential data lines | Crystal-less operation enabled by internal 48 MHz HSI48 with ±0.25% accuracy - removes external crystal and saves board space/cost. |
| VLCD | LCD voltage supply output | On-chip step-up converter generates adjustable VLCD (2.4–3.3 V) - eliminates external charge pump for segment LCDs. |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low-power Stop mode | 0.43 µA with 16 wakeup lines - enables rapid sensor polling while maintaining µA-level quiescent current. |
| Crystal-less USB 2.0 | HSI48 self-calibrated to ±0.25% using USB SOF packets - achieves full-speed USB compliance without external crystal or trimming components. |
| Integrated LCD controller | Drives up to 4×52 segments with programmable contrast, blinking, and on-board VLCD generation - reduces BOM count in display-enabled wearables and meters. |
| Dual buffered 12-bit DACs | Independent outputs operable down to 1.8 V supply - supports simultaneous analog waveform generation and sensor calibration reference signals. |
| Capacitive touch sensing (TSC) | 24-channel support for touchkey, linear, and rotary sensors - enables intuitive HMI in battery-constrained handheld devices. |
Applications
| Smart Utility Meter | Portable ECG Monitor |
|---|---|
Use Scenario: Battery-powered electricity/water/gas meter with LCD display, tamper detection, and periodic RF transmission. IC Role / Device Role / Timing Role: Main MCU managing metrology ADC sampling, LCD refresh, RTC-based billing intervals, and low-power UART/USB firmware updates. Use Value: 0.86 µA Stop mode + RTC + 20 KB RAM retention preserves billing data and time across 10+ year battery life; integrated LCD driver eliminates external bias IC. | Use Scenario: Handheld, single-lead ECG device powered by CR2032, displaying real-time waveform and storing 30-second traces. IC Role / Device Role / Timing Role: Signal acquisition MCU performing 1 kSPS ADC sampling, digital filtering, DAC-driven lead-off detection, and LCD waveform rendering. Use Value: Dual 12-bit DACs generate precise electrode bias and test signals; 12-bit ADC with 1.14 Msps supports oversampling for noise reduction; 5 µs Flash wakeup ensures responsive button interaction. |
| Wireless Sensor Node | Industrial Temperature Logger |
Use Scenario: LoRaWAN node measuring ambient temperature/humidity, logging data locally, and transmitting hourly via sub-GHz radio. IC Role / Device Role / Timing Role: System controller coordinating sensor I2C reads, EEPROM data logging, RTC-triggered transmissions, and deep-sleep scheduling. Use Value: 6 KB EEPROM with ECC ensures 100k write cycles for reliable long-term logging; 78 5V-tolerant I/Os simplify connection to legacy analog sensors and level translators. | Use Scenario: DIN-rail mounted logger recording temperature every 5 minutes using external thermistor/RTD, with local LCD readout and USB configuration. IC Role / Device Role / Timing Role: Precision analog front-end MCU running continuous ADC conversions, calculating calibrated temperature values, updating LCD, and managing USB CDC virtual COM port. Use Value: Ultra-low-power comparators monitor sensor fault conditions with wake-up capability; internal 1.22 V VREFINT enables ratiometric ADC measurements independent of supply drift. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar ultra-low-power MCU applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| STM32L072V8T6 | Same package and core, but lacks USB and LCD controller; 128 KB Flash, no DACs | Suitable for non-display, non-USB sensor nodes where cost and code size are constrained | Select when USB/LCD/DAC functionality is unnecessary and BOM cost optimization is prioritized. |
| STM32L432KCU6 | Cortex-M4F core, 256 KB Flash, 64 KB SRAM, no LCD, USB FS, 12-bit ADC (5 Msps), no DAC | Better for DSP-intensive tasks (e.g., FFT-based vibration analysis), but higher active current (80 µA/MHz) | Choose when floating-point math or higher throughput is required, accepting trade-off in standby current (250 nA vs. 290 nA). |
Compared with STM32L072V8T6, the STM32L073V8T6 adds essential analog and human-interface features (LCD, DACs, USB) at modest power cost; versus STM32L432KCU6, it delivers superior ultra-low-power endurance for long-life battery applications despite lower compute performance.
Availability
STM32L073V8T6 is available at Aetrix Electronics and suitable for smart utility meters, portable medical diagnostics, and industrial temperature loggers requiring stable component supply, long-term lifecycle assurance, and ECOPACK2 environmental compliance.
Supply support for STM32L073V8T6 includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.
Manufacturer
STMicroelectronics is a global semiconductor leader headquartered in Geneva, designing and manufacturing microcontrollers, power ICs, sensors, and analog products for industrial, automotive, and consumer markets.
The STM32L0 series targets ultra-low-power embedded applications demanding multi-year battery life, robust analog integration, and secure firmware execution - optimized for IoT edge nodes and portable instrumentation.
FAQ
What is the maximum operating frequency and core type of the STM32L073V8T6?
The STM32L073V8T6 features an Arm Cortex-M0+ core with a maximum CPU frequency of 32 MHz, delivering 0.95 DMIPS/MHz. It supports dynamic voltage scaling and operates across the full 1.65–3.6 V supply range, enabling high-efficiency performance in both active and low-power modes.
Does the STM32L073V8T6 support crystal-less USB operation?
Yes - the device integrates a factory-trimmed 48 MHz HSI48 oscillator with automatic self-calibration using USB Start-of-Frame (SOF) packets, achieving ±0.25% accuracy. This eliminates the need for an external USB crystal, reducing BOM cost and PCB area in space-constrained designs.
How many I/O pins are 5V-tolerant, and what is the package type?
The STM32L073V8T6 in LQFP100 package provides 78 5V-tolerant I/Os out of 100 total pins. This allows direct interfacing with legacy 5V peripherals and simplifies level-shifting requirements in mixed-voltage systems without additional buffer ICs.
What LCD segment configurations does the integrated controller support?
The built-in LCD controller supports up to 4×52 or 8×48 segment configurations, with programmable contrast, blinking mode, and on-chip step-up converter generating VLCD (2.4–3.3 V). It requires no external bias supply and supports static, multiplexed, and COM/SEG drive schemes per datasheet Section 3.11.
STM32L073V8T6 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- STMicroelectronics
- Package/Case:
- 100-LQFP
- Series:
- STM32L0
- Packaging:
- Tray
- Product Status:
- Active
- Programmable:
- Not Verified
- Core Processor:
- ARM® Cortex®-M0+
- Core Size:
- 32-Bit Single-Core
- Speed:
- 32MHz
- Connectivity:
- I2C, IrDA, LINbus, SPI, UART/USART, USB
- Peripherals:
- Brown-out Detect/Reset, DMA, I2S, LCD, POR, PWM, WDT
- Number of I/O:
- 84
- Program Memory Size:
- 64KB (64K x 8)
- Program Memory Type:
- FLASH
- EEPROM Size:
- 3K x 8
- RAM Size:
- 20K x 8
- Voltage - Supply (Vcc/Vdd):
- 1.8V ~ 3.6V
- Data Converters:
- A/D 16x12b; D/A 2x12b
- Oscillator Type:
- Internal
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
STM32L073V8T6 FAQ
1.How can I place an order for STM32L073V8T6 through Aetrix?
Please submit a Request for Quotation (RFQ) for STM32L073V8T6 on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.
2.Are the price and stock information for STM32L073V8T6 reliable?
The price and inventory of STM32L073V8T6 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for STM32L073V8T6 is usually 5 days.
3.What payment methods are accepted for STM32L073V8T6?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for STM32L073V8T6 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for STM32L073V8T6?
STM32L073V8T6 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your STM32L073V8T6 order is processed, you will receive an email with the shipment details and tracking number.
Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.
5.How can I obtain technical support or documentation for STM32L073V8T6?
For technical support, including STM32L073V8T6 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your STM32L073V8T6 requirements.
6.How does Aetrix verify that STM32L073V8T6 is sourced from the original manufacturer or authorized distributors?
All STM32L073V8T6 products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that STM32L073V8T6 meets industry standards.
7.What is the process for return or replacement of STM32L073V8T6?
All STM32L073V8T6 units undergo pre-shipment inspection (PSI). If there is an issue with STM32L073V8T6, returns or replacements are accepted under the following conditions:
1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.
2.The issue is reported within 90 days of delivery.
3.The STM32L073V8T6 part is unused and in its original packaging.
Return procedure for STM32L073V8T6:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
STM32L073V8T6 Tags
-
ATTINY4-TSHR
Microchip Technology
-
ATTINY10-TSHR
Microchip Technology
-
ATTINY10-TS8R
Microchip Technology
-
ATTINY202-SSNR
Microchip Technology
-
ATTINY202-SSFR
Microchip Technology
-
ATTINY402-SSNR
Microchip Technology
-
PIC16F15213T-I/MF
Microchip Technology
-
PIC16F15213-E/MF
Microchip Technology
-
PIC10F200T-I/OT
Microchip Technology
-
ATTINY412-SSNR
Microchip Technology
-
PIC10F202T-I/OT
Microchip Technology
-
ATTINY404-SSNR
Microchip Technology
Tech Hub
A practical engineering guide to 3.3V and 5V logic compatibility, input thresholds, resistor dividers, translator ICs, MOSFET level shifting, I2C pull-ups, timing limits and power-sequencing risks.
The 74HC595 uses push-pull logic outputs, while the TPIC6B595 uses 50 V open-drain DMOS sinks for higher-power loads. This guide compares timing, current limits, 3.3 V interfacing, load wiring, thermal…
The 74HC595 converts serial data into eight stable parallel outputs. This guide covers pin functions, shift and storage timing, OE and MR behavior, drive-current limits, cascading, voltage compatibilit…
A technical comparison of level-sensitive latches and edge-triggered flip-flops, covering timing windows, setup and hold limits, master–slave operation, time borrowing, race-through, HDL inference and…
A D latch stores one bit while Enable controls when data can pass. This reference covers gate-level operation, truth tables, transparency, setup and hold timing, LE versus OE, common ICs and practical …
An SR latch stores one bit through cross-coupled feedback. This engineering reference covers NOR and NAND implementations, truth tables, forbidden-state recovery, gated operation, switch debouncing, fa…
Latch circuits retain one bit through feedback. This technical reference covers SR and D latches, truth tables, transparency, timing limits, latch-versus-flip-flop behavior, applications and common log…
An engineering guide to LED driver operation, constant-current and constant-voltage outputs, linear and switching topologies, dimming, IC selection, calculations, replacement compatibility, and fault c…
Operational amplifier guide covering op amp basics, feedback, ideal vs real op amps, common configurations, buffer circuits, offset, bias current, gain-bandwidth, slew rate, rail-to-rail limits and sel…
Jumper cables guide covering safe connection order, red and black clamp placement, final ground connection, cable gauge, length, clamp quality, copper vs CCA cables, jump starter comparison and battery…
