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STMicroelectronics STM32L072RZH6TR
- Part No.:
- STM32L072RZH6TR
- Manufacturer:
- STMicroelectronics
- Category:
- Microcontrollers
- Package:
- 64-TFBGA
- Datasheet:
-
STM32L072RZH6TR.pdf
- Description:
- IC MCU 32BIT 192KB FLASH 64TFBGA
- Quantity:
- Payment:
- Shipping:
Inventory:4,892
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Product details
Overview
STM32L072RZH6TR from STMicroelectronics is an ultra-low-power 32-bit Arm® Cortex®-M0+ microcontroller with 192 KB Flash, 20 KB SRAM, and 6 KB EEPROM; features USB 2.0 (crystal-less), dual 12-bit DACs, 12-bit ADC (1.14 Msps), and operates from 1.65–3.6 V across –40 to +125 °C. It targets battery-powered IoT sensors, portable medical devices, and smart metering endpoints requiring sub-1 µA Stop mode and fast 5 µs wakeup.
For engineers reviewing the STM32L072RZH6TR datasheet, STM32L072RZH6TR pinout, STM32L072RZH6TR application, or STM32L072RZH6TR equivalent, key selection criteria include low-power mode current (0.43 µA Stop, 0.86 µA Stop+RTC), USB crystal-less operation, 78 5V-tolerant I/Os, and integrated true RNG with firewall protection.
Technical Context
The device implements a dual-bank Flash architecture with ECC and read-while-write capability, enabling seamless firmware updates. Its clock system integrates factory-trimmed 16 MHz HSI (+/−1%), self-calibrating 48 MHz HSI48 for USB, and 32 kHz LSE for RTC-supporting dynamic voltage scaling and multiple low-power modes.
Analog subsystem includes two independent 12-bit DACs with output buffers (operable down to 1.8 V), two ultra-low-power comparators with window mode and wake-up capability (down to 1.65 V), and a 24-channel capacitive sensing controller supporting touchkey and rotary sensors.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core | Arm Cortex-M0+ with MPU, up to 32 MHz (0.95 DMIPS/MHz) |
| Memory | 192 KB Flash (ECC, dual-bank RWW), 20 KB SRAM, 6 KB EEPROM (ECC) |
| Power Modes | 0.43 µA Stop mode, 0.86 µA Stop+RTC+20KB RAM retention, 93 µA/MHz Run |
| Analog Peripherals | 12-bit ADC (1.14 Msps, 16 ch), 2×12-bit DACs w/ buffers, 2×ULP comparators |
| Connectivity | USB 2.0 crystal-less, 4×USART (2 ISO 7816/IrDA), 6×SPI (16 Mbit/s), 3×I²C (2 SMBus/PMBus) |
| Timers & Security | 11 timers including RTC, LPTIM, SysTick, 2×watchdogs; CRC unit, 96-bit UID, true RNG, firewall |
Pinout & Package
LQFP64 (10 × 10 mm, 0.5 mm pitch) package with 51 general-purpose I/Os (78 total I/Os on full-pin-count variants), of which 78 are 5V tolerant. Pin functions include dedicated USB D+/D−, multiple USART/SPI/I²C alternate functions, and TSC channel support on specific GPIOs.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDD, VSS | Power supply and ground | Core and I/O domain supply (1.65–3.6 V); decoupling required per datasheet layout guidelines |
| PA11/PA12 | USB D−/D+ | Dedicated crystal-less USB interface; internal transceivers eliminate external PHY |
| PC13/PC14/PC15 | RTC oscillator inputs | Support 32.768 kHz external crystal for precision real-time clock and calendar |
| NRST | Active-low reset input | Asynchronous reset with programmable threshold; supports external pull-up and debouncing |
| BOOT0 | Boot mode selection | Configures boot source (system memory, Flash, or SRAM); sampled at reset |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low-power Stop mode | 0.43 µA (16 wakeup lines) enables multi-year battery life in periodic-sensing applications |
| Crystal-less USB | Integrated 48 MHz HSI48 with self-calibration eliminates external crystal and reduces BOM cost |
| EEPROM with ECC | 6 KB data EEPROM with error correction ensures reliable non-volatile parameter storage over 100k cycles |
| Capacitive sensing | 24-channel TSC supports robust touch interfaces without external components or shielding |
| True hardware RNG | FIPS-compliant random number generation accelerates secure boot and cryptographic key derivation |
Applications
| Wearable Health Monitor | Smart Utility Meter |
|---|---|
Use Scenario: Continuous ECG/temperature logging with Bluetooth LE offload and weekly data sync. IC Role / Device Role / Timing Role: Main MCU managing analog front-end, USB charging detection, RTC timestamping, and low-power sleep scheduling. Use Value: 0.86 µA Stop+RTC mode preserves sensor timestamps and state while extending coin-cell life beyond 3 years. | Use Scenario: Tamper-resistant electricity/water meter with pulse counting, display, and PLC/GPRS communication. IC Role / Device Role / Timing Role: System controller handling metrology ADC sampling, EEPROM-based tariff storage, and secure firmware updates via USB. Use Value: 6 KB ECC EEPROM guarantees integrity of billing parameters across 10+ year field deployment. |
| Industrial Wireless Sensor Node | Portable Diagnostic Device |
Use Scenario: Battery-powered vibration/temperature node transmitting via LoRaWAN every 15 minutes. IC Role / Device Role / Timing Role: Sensor aggregator with 12-bit ADC oversampling, DMA-driven SPI to LoRa transceiver, and precise wakeup timing. Use Value: 5 µs wakeup from Flash enables rapid sensor acquisition and radio transmit bursts, minimizing active time. | Use Scenario: Handheld blood glucose or oximeter with LCD, button interface, and USB-C charging. IC Role / Device Role / Timing Role: Integrated analog hub driving dual DACs for calibration references, comparators for signal thresholding, and USB battery charging detection. Use Value: Dual 12-bit DACs with output buffers provide stable, low-noise reference voltages for precision analog measurement circuits. |
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 |
|---|---|---|---|
| STM32L073RZT6 | Same package and pinout; adds CAN FD controller and higher-temp grade (–40 to +125 °C same) | Required where industrial bus integration (CAN FD) is needed alongside USB and analog peripherals | Select when CAN FD physical layer support is mandatory and no PCB redesign is possible |
| STM32L432KCU6 | ARM Cortex-M4F core, 256 KB Flash, 64 KB SRAM, no EEPROM, higher power (110 µA/MHz Run) | Suitable for compute-intensive edge processing (e.g., FFT, sensor fusion) but lacks EEPROM and ultra-low Stop current | Choose for floating-point math or DSP workloads where 0.43 µA Stop mode is not critical |
Compared with STM32L072RZH6TR, STM32L073RZT6 adds CAN FD without sacrificing low-power performance, while STM32L432KCU6 trades ultra-low-power efficiency for Cortex-M4F compute capability-making the L072 optimal for long-life, mixed-signal, USB-connected endpoints.
Availability
STM32L072RZH6TR is available at Aetrix Electronics and suitable for wearable health monitors, smart utility meters, industrial wireless sensor nodes, and portable diagnostic devices requiring stable component supply across extended product lifecycles.
Supply support for STM32L072RZH6TR 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 ICs, sensors, and automotive semiconductors since 1987.
The STM32L0 series targets ultra-low-power embedded applications-specifically battery-operated, cost-sensitive, and safety-critical systems where sub-microamp sleep currents, integrated analog, and secure firmware execution are essential.
FAQ
What is the maximum operating frequency and core type of the STM32L072RZH6TR?
The STM32L072RZH6TR uses an Arm Cortex-M0+ core with Memory Protection Unit (MPU), operating at up to 32 MHz. It delivers 0.95 DMIPS per MHz and supports dynamic voltage scaling to optimize performance versus power consumption across its 1.65–3.6 V supply range.
Does the STM32L072RZH6TR support USB without an external crystal?
Yes-it integrates a self-calibrating 48 MHz HSI48 RC oscillator synchronized to USB SOF packets, enabling full-speed USB 2.0 communication without an external crystal. This reduces BOM cost and PCB area while maintaining ±0.25% accuracy over temperature and voltage.
How many I/O pins are 5V tolerant, and what is the package type?
The STM32L072RZH6TR in LQFP64 package provides 78 5V-tolerant I/Os. The 'R' in the part number denotes 64-pin LQFP, and the 'H6TR' suffix indicates tape-and-reel packaging with industrial temperature grade (–40 to +125 °C).
What are the key low-power mode current specifications?
In Stop mode, it draws 0.43 µA (16 wakeup lines); in Stop mode with RTC and 20 KB RAM retention, it consumes 0.86 µA. Standby mode draws 0.29 µA with 3 wakeup pins enabled-verified per DS10689 Rev 5 electrical characteristics tables 37–38.
STM32L072RZH6TR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- STMicroelectronics
- Package/Case:
- 64-TFBGA
- Series:
- STM32L0
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Programmable:
- Not Verified
- Core Processor:
- ARM® Cortex®-M0+
- Core Size:
- 32-Bit Single-Core
- Speed:
- 32MHz
- Connectivity:
- I2C, IrDA, SPI, UART/USART, USB
- Peripherals:
- Brown-out Detect/Reset, DMA, POR, PWM, WDT
- Number of I/O:
- 51
- Program Memory Size:
- 192KB (192K x 8)
- Program Memory Type:
- FLASH
- EEPROM Size:
- 6K 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:
STM32L072RZH6TR FAQ
1.How can I place an order for STM32L072RZH6TR through Aetrix?
Please submit a Request for Quotation (RFQ) for STM32L072RZH6TR 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 STM32L072RZH6TR reliable?
The price and inventory of STM32L072RZH6TR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for STM32L072RZH6TR is usually 5 days.
3.What payment methods are accepted for STM32L072RZH6TR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for STM32L072RZH6TR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for STM32L072RZH6TR?
STM32L072RZH6TR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your STM32L072RZH6TR 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 STM32L072RZH6TR?
For technical support, including STM32L072RZH6TR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your STM32L072RZH6TR requirements.
6.How does Aetrix verify that STM32L072RZH6TR is sourced from the original manufacturer or authorized distributors?
All STM32L072RZH6TR 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 STM32L072RZH6TR meets industry standards.
7.What is the process for return or replacement of STM32L072RZH6TR?
All STM32L072RZH6TR units undergo pre-shipment inspection (PSI). If there is an issue with STM32L072RZH6TR, 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 STM32L072RZH6TR part is unused and in its original packaging.
Return procedure for STM32L072RZH6TR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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