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STMicroelectronics STM32L152VDT6TR
- Part No.:
- STM32L152VDT6TR
- Manufacturer:
- STMicroelectronics
- Category:
- Microcontrollers
- Package:
- 100-LQFP
- Datasheet:
-
STM32L152VDT6TR.pdf
- Description:
- IC MCU 32BIT 384KB FLASH 100LQFP
- Quantity:
- Payment:
- Shipping:
Inventory:3,085
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Product details
Overview
STM32L152VDT6TR from STMicroelectronics is an ultra-low-power 32-bit ARM® Cortex®-M3 microcontroller featuring 384 KB Flash with ECC, 80 KB SRAM, 16 KB true EEPROM, integrated LCD controller (up to 8×40 segments), USB 2.0 interface, and dual 12-bit ADCs (1 Msps, up to 40 channels). It operates from 1.65 V to 3.6 V across –40 °C to +105 °C and delivers 195 µA/MHz in Run mode with 8 µs wakeup from Stop mode - deployed in battery-powered medical sensors and portable industrial data loggers.
For engineers reviewing the STM32L152VDT6TR datasheet, STM32L152VDT6TR pinout, STM32L152VDT6TR application, or STM32L152VDT6TR equivalent, key selection criteria include ultra-low-power mode current (560 nA Stop, 290 nA Standby), LCD driver capability, USB 2.0 support with internal 48 MHz PLL, dual DAC channels with buffers, and 102 5V-tolerant I/Os mappable to 16 external interrupt vectors.
Technical Context
The STM32L152VDT6TR implements dynamic voltage scaling and multiple low-power modes (Stop, Standby, Low-power Run) managed by an ultrasafe BOR with five selectable thresholds and programmable voltage detector (PVD). Its clock system integrates six oscillators: 1–24 MHz HSE, 32 kHz LSE for RTC, 16 MHz HSI (±1% factory-trimmed), 37 kHz LSI, multispeed MSI (65 kHz–4.2 MHz), and a dedicated USB PLL.
Analog subsystem includes two rail-to-rail operational amplifiers, two ultra-low-power comparators with window mode and wakeup capability, 12-bit ADC with temperature sensor and VREFINT, and dual 12-bit DACs with output buffers - all functional down to 1.8 V supply, enabling direct sensor signal conditioning without external components.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core | ARM Cortex-M3, 32-bit CPU running up to 32 MHz (1.25 DMIPS/MHz); MPU enables memory protection in embedded applications. |
| Memory | 384 KB Flash (dual-bank, ECC, RWW), 80 KB SRAM, 16 KB true EEPROM (ECC), 128-byte backup registers - supports firmware updates and data retention during power loss. |
| Power Modes | 560 nA Stop mode (16 wakeup lines), 290 nA Standby mode (3 wakeup pins), 11 µA Low-power run mode - extends battery life in intermittent-sensing devices. |
| Analog Peripherals | 12-bit ADC (1 Msps, 40 channels), 12-bit DAC ×2 (with buffers), 2× op-amps, 2× ultra-low-power comparators - enables closed-loop analog control without external signal chain. |
| Connectivity | USB 2.0 FS (internal 48 MHz PLL), 5× USARTs, up to 8× SPIs (2× I2S), 2× I2Cs (SMBus/PMBus), 1× CAN 2.0B - supports mixed wired/wireless gateway architectures. |
| I/O & Timing | 116 fast I/Os (102 5V tolerant), all mappable to 16 external interrupt vectors; 11 timers including 32-bit general-purpose, 6× 16-bit advanced, 2× watchdogs - supports precise motor control and real-time event handling. |
| LCD Driver | Integrated LCD controller supporting up to 8×40 segments, contrast adjustment, blinking mode, and step-up converter - eliminates external display driver IC in portable instrumentation. |
Pinout & Package
LQFP100 (14 × 14 mm, 0.5 mm pitch) package with exposed thermal pad; RoHS-compliant, lead-free, and qualified for industrial temperature range (–40 °C to +105 °C).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDD, VDDA, VDDIO2 | Main, analog, and I/O power supplies | Independent 1.65–3.6 V domains enable noise isolation between analog/RF and digital sections; VDDIO2 supports 5V-tolerant I/Os. |
| VSS, VSSA, VSSIO2 | Digital, analog, and I/O ground returns | Separate ground planes reduce coupling noise in mixed-signal operation and improve ADC/DAC SNR. |
| PA0–PA15, PB0–PB15, etc. | General-purpose I/Os with alternate functions | All 116 pins support remappable peripheral functions (USART, SPI, I2C, TIM) and 16 external interrupts - simplifies PCB routing and layout reuse. |
| OSC_IN / OSC_OUT | External crystal oscillator input/output | Supports 1–24 MHz crystals; enables precise timing for USB, RTC, and communication interfaces requiring strict jitter control. |
| USB_DP / USB_DM | USB 2.0 Full-Speed differential pair | Integrated transceiver with internal 48 MHz PLL eliminates need for external crystal or clock generator in USB device designs. |
| VLCD | LCD segment/common power supply | Drives up to 320 segments directly; internal step-up converter allows LCD operation below VDD - critical for single-cell battery systems. |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low-power standby | 290 nA with 3 wakeup pins - enables multi-year operation on coin-cell batteries in IoT endpoint nodes. |
| ECC-enabled memories | 384 KB Flash and 16 KB EEPROM with error correction - ensures firmware/data integrity in harsh EMI environments (industrial/metering). |
| Capacitive touch sensing | Up to 23 channels with hardware-accelerated acquisition - supports robust user interface on medical handhelds without external touch controller. |
| Pre-programmed bootloader | Factory-loaded USB and USART bootloader - enables field firmware updates without JTAG/SWD debug probe. |
| Temperature sensor & VREFINT | Calibrated on-chip temperature sensor (±1.5 °C accuracy) and internal reference (1.22 V ±1%) - eliminates external components for system health monitoring. |
Applications
| Wearable Health Monitor | Smart Utility Meter |
|---|---|
Use Scenario: Continuous ECG/PPG signal acquisition with local processing and Bluetooth LE transmission. IC Role / Device Role / Timing Role: Central MCU managing analog front-end (ADC, op-amps, comparators), LCD display, USB charging interface, and low-power sleep scheduling. Use Value: 560 nA Stop mode and 8 µs wakeup enable rapid sensor sampling bursts while preserving multi-week battery life on CR2032. | Use Scenario: Tamper-resistant electricity meter with real-time tariff calculation, LCD display, and optical/IR communication port. IC Role / Device Role / Timing Role: Primary controller executing metrology algorithms, driving 4-digit LCD via integrated controller, and managing secure firmware updates over optical interface. Use Value: 16 KB EEPROM with ECC stores calibration constants and billing logs with guaranteed 10-year data retention under temperature cycling. |
| Portable Gas Detector | Industrial Wireless Sensor Node |
Use Scenario: Battery-powered CO/H₂S detection unit with electrochemical sensor biasing, analog signal conditioning, and alarm LED/audio output. IC Role / Device Role / Timing Role: Signal processor interfacing dual op-amps for transimpedance amplification, 12-bit DAC for sensor bias control, and comparators for threshold-triggered alerts. Use Value: Dual op-amps and DACs eliminate discrete analog components, reducing BOM cost and board area by >35% versus discrete solutions. | Use Scenario: LoRaWAN node collecting vibration, temperature, and humidity data in predictive maintenance deployments. IC Role / Device Role / Timing Role: Edge intelligence hub performing FFT-based vibration analysis, timestamping sensor readings with RTC+backup registers, and managing LoRa radio sleep cycles. Use Value: 1.11 µA Standby + RTC and 128-byte backup registers retain time and last valid reading during 10-year battery lifetime without external RTC or nonvolatile storage. |
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 |
|---|---|---|---|
| STM32L432KCU6 | ARM Cortex-M4F core, 256 KB Flash, no LCD driver, lower Stop mode current (100 nA), no EEPROM | Suitable for sensor fusion with floating-point math but lacks integrated display support and nonvolatile parameter storage | Select when DSP-intensive algorithms outweigh LCD/EEPROM requirements and lowest possible Stop current is critical |
| EFM32PG12B500F1024GL125 | ARM Cortex-M4, 1024 KB Flash, 256 KB RAM, no USB, no LCD, higher active current (130 µA/MHz) | Better suited for energy-harvesting nodes needing large code space and high RAM, but requires external display driver and USB PHY | Choose for battery-less designs using solar/kinetic harvesting where USB and LCD integration are secondary to computational headroom |
Compared with STM32L152VDT6TR, the STM32L432KCU6 trades LCD/EEPROM for lower Stop current and FPU, while the EFM32PG12B500F1024GL125 sacrifices USB/LCD integration for larger memory and energy-harvesting readiness - making STM32L152VDT6TR optimal for compact, display-equipped, USB-configurable battery devices.
Availability
STM32L152VDT6TR is available at Aetrix Electronics and suitable for wearable health monitors, smart utility meters, portable gas detectors, and industrial wireless sensor nodes requiring stable component supply across extended product lifecycles.
Supply support for STM32L152VDT6TR 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, Switzerland, designing and manufacturing microcontrollers, power management ICs, sensors, and automotive semiconductors.
The STM32L1 series targets ultra-low-power embedded applications demanding long battery life, integrated analog peripherals, and robust memory reliability - especially in portable medical, metering, and environmental monitoring equipment.
FAQ
What is the maximum operating frequency and core architecture of the STM32L152VDT6TR?
The STM32L152VDT6TR features an ARM Cortex-M3 32-bit core rated for up to 32 MHz operation, delivering 1.25 DMIPS/MHz (Dhrystone 2.1). It includes a Memory Protection Unit (MPU) and supports dynamic voltage scaling to optimize performance versus power consumption across its full 1.65–3.6 V supply range.
Does the STM32L152VDT6TR support USB functionality without an external crystal?
Yes - the device integrates a USB 2.0 Full-Speed transceiver with an internal 48 MHz PLL that locks to the 32 kHz LSE or 16 MHz HSI clock sources. This eliminates the need for an external 48 MHz crystal or oscillator, reducing BOM count and PCB footprint in USB device implementations.
How many I/O pins are 5V tolerant, and what is their voltage rating?
102 of the 116 GPIOs on the STM32L152VDT6TR are 5V tolerant when VDD is powered (1.65–3.6 V). These pins accept input voltages up to 5.5 V regardless of VDD level, enabling direct interfacing with legacy 5V logic, sensors, and displays without level-shifting circuitry.
What LCD segment capacity does the integrated controller support, and is it present in this variant?
The STM32L152VDT6TR includes a full-featured LCD controller supporting up to 8 commons × 40 segments (320 total), with contrast adjustment, blinking mode, and integrated step-up converter. Unlike the STM32L151VD-X, the STM32L152VD-X series (including this part) explicitly includes LCD functionality per ST's official datasheet revision 4.
STM32L152VDT6TR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- STMicroelectronics
- Package/Case:
- 100-LQFP
- Series:
- STM32L1
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Programmable:
- Not Verified
- Core Processor:
- ARM® Cortex®-M3
- Core Size:
- 32-Bit Single-Core
- Speed:
- 32MHz
- Connectivity:
- I2C, IrDA, LINbus, SPI, UART/USART, USB
- Peripherals:
- Brown-out Detect/Reset, Cap Sense, DMA, I2S, LCD, POR, PWM, WDT
- Number of I/O:
- 83
- Program Memory Size:
- 384KB (384K x 8)
- Program Memory Type:
- FLASH
- EEPROM Size:
- 12K x 8
- RAM Size:
- 48K x 8
- Voltage - Supply (Vcc/Vdd):
- 1.8V ~ 3.6V
- Data Converters:
- A/D 25x12b; D/A 2x12b
- Oscillator Type:
- Internal
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
STM32L152VDT6TR FAQ
1.How can I place an order for STM32L152VDT6TR through Aetrix?
Please submit a Request for Quotation (RFQ) for STM32L152VDT6TR 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 STM32L152VDT6TR reliable?
The price and inventory of STM32L152VDT6TR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for STM32L152VDT6TR is usually 5 days.
3.What payment methods are accepted for STM32L152VDT6TR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for STM32L152VDT6TR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for STM32L152VDT6TR?
STM32L152VDT6TR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your STM32L152VDT6TR 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 STM32L152VDT6TR?
For technical support, including STM32L152VDT6TR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your STM32L152VDT6TR requirements.
6.How does Aetrix verify that STM32L152VDT6TR is sourced from the original manufacturer or authorized distributors?
All STM32L152VDT6TR 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 STM32L152VDT6TR meets industry standards.
7.What is the process for return or replacement of STM32L152VDT6TR?
All STM32L152VDT6TR units undergo pre-shipment inspection (PSI). If there is an issue with STM32L152VDT6TR, 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 STM32L152VDT6TR part is unused and in its original packaging.
Return procedure for STM32L152VDT6TR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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