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STMicroelectronics STM32F072CBY7TR
- Part No.:
- STM32F072CBY7TR
- Manufacturer:
- STMicroelectronics
- Category:
- Microcontrollers
- Package:
- 49-UFBGA, WLCSP
- Datasheet:
-
STM32F072CBY7TR.pdf
- Description:
- IC MCU 32BIT 128KB FLASH 49WLSCP
- Quantity:
- Payment:
- Shipping:
Inventory:2,873
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Product details
Overview
STM32F072CBY7TR from STMicroelectronics is an Arm® Cortex®-M0 32-bit microcontroller with 128 KB Flash, 16 KB SRAM, crystal-less USB 2.0 FS interface, CAN 2.0B controller, and integrated 12-bit ADC/DAC - deployed in industrial HMI, USB-connected sensor nodes, and CAN-based building automation gateways.
For engineers reviewing the STM32F072CBY7TR datasheet, STM32F072CBY7TR pinout, STM32F072CBY7TR application, or STM32F072CBY7TR equivalent, key selection factors include USB clocking autonomy (48 MHz internal oscillator with BCD/LPM), 5V-tolerant I/O count (68 pins), CAN+USB coexistence capability, and VDDIO2 support for mixed-voltage peripheral interfacing.
Technical Context
The device integrates a single-cycle Cortex-M0 core running at up to 48 MHz, coupled with a clock recovery system (CRS) enabling precise USB timing without external crystal. Its memory subsystem includes 128 KB of Flash with error correction and 16 KB of HW-parity SRAM, supporting deterministic real-time execution.
Peripheral integration centers on concurrent high-speed communication: dual I²C (one with SMBus/PMBus), four USARTs (two with ISO7816/LIN/IrDA), two SPI/I²S, full-speed USB 2.0 with battery charging detection (BCD), and a CAN 2.0B controller - all accessible via up to 87 GPIOs with configurable 5V tolerance and independent VDDIO2 supply on 19 pins.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| CPU Core | Arm Cortex-M0, 48 MHz max - enables deterministic real-time control with <100 ns interrupt latency. |
| Flash / SRAM | 128 KB Flash + 16 KB SRAM with hardware parity - supports robust firmware storage and runtime data integrity checking. |
| USB Interface | Crystal-less USB 2.0 Full-Speed with BCD & LPM - eliminates external 48 MHz crystal, reduces BOM cost and PCB area. |
| CAN Interface | CAN 2.0B controller with dedicated TX/RX buffers - enables automotive-grade bus arbitration and fault-tolerant messaging in industrial networks. |
| Analog Peripherals | 1×12-bit ADC (16 ch, 1 µs), 2×12-bit DAC, 2×comparators - supports closed-loop analog sensing and actuation without external signal chain ICs. |
| I/O Capability | 87 GPIOs; 68 with 5V tolerance, 19 with independent VDDIO2 (1.65–3.6 V) - allows direct interfacing with legacy 5V logic and mixed-voltage peripherals. |
| Low-Power Modes | Sleep/Stop/Standby with RTC + backup registers powered by VBAT - enables sub-µA retention for battery-backed timekeeping and wake-on-event operation. |
Pinout & Package
STM32F072CBY7TR uses a 48-pin UFQFPN package (7 × 7 mm, 0.5 mm pitch) with exposed thermal pad - optimized for compact industrial and USB-peripheral designs requiring thermal efficiency and reflow compatibility.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDD, VDDA, VSS, VSSA | Power supply and ground rails | Digital (2.0–3.6 V), analog (2.4–3.6 V), and separate ground domains ensure noise isolation for mixed-signal operation. |
| PA11/PA12 | USB DM/DP | Dedicated full-speed USB transceiver pins with internal pull-ups - enable plug-and-play enumeration without external resistors. |
| PD0/PD1 | CAN RX/TX | Direct connection to external CAN transceiver - supports 1 Mbps bit rate with programmable sample point and loopback mode. |
| PA0–PA15, PB0–PB15, PC13–PC15 | General-purpose I/O | Configurable as GPIO, EXTI, or 24-channel capacitive touch sensing input - enables touch HMI without external controller. |
| PA4–PA7, PB0–PB1 | ADC IN0–IN7 | Hardware-mapped analog inputs with 12-bit resolution and 1 µs conversion - suitable for precision voltage/current monitoring. |
| PA4, PA5 | DAC OUT1/OUT2 | Two buffered 12-bit voltage outputs - drive analog actuators or reference circuits with monotonic response and <0.5 LSB INL. |
Key Features
| Feature | Design Value |
|---|---|
| Crystal-less USB 2.0 FS | Internal 48 MHz HSI48 oscillator with CRS auto-trimming - achieves ±0.25% USB timing accuracy across temperature/voltage without external crystal. |
| Independent VDDIO2 supply | 19 I/Os powered separately at 1.65–3.6 V - enables safe interfacing with 1.8 V or 2.5 V peripherals while main VDD runs at 3.3 V. |
| Capacitive Touch Sensing (TSC) | 24-channel hardware-accelerated touch controller - supports up to 16 touch keys or rotary sliders with <5 µA average current in low-power scan mode. |
| Programmable Voltage Detector (PVD) | 7-level threshold selection (2.0–2.9 V) with interrupt generation - provides early warning of brown-out conditions before system reset occurs. |
| 96-bit unique ID | Factory-programmed serial number per die - enables secure device authentication and license binding in production firmware. |
Applications
| Industrial HMI Panel | USB-Capable Sensor Node |
|---|---|
Use Scenario: Compact wall-mounted display with touch buttons, local data logging, and USB-C configuration port. IC Role / Device Role / Timing Role: Main MCU handling capacitive touch scanning, SPI flash storage, USB CDC virtual COM port, and real-time clock synchronization. Use Value: Integrated TSC and crystal-less USB eliminate external touch controller and USB crystal, reducing component count by ≥3 and PCB area by 25%. | Use Scenario: Battery-powered environmental sensor node transmitting temperature/humidity over USB to host PC for calibration and firmware updates. IC Role / Device Role / Timing Role: System-on-chip managing ADC sampling, low-power Stop-mode scheduling, USB enumeration, and BCD-compliant charging detection. Use Value: VBAT-backed RTC and sub-µA Standby current enable multi-year battery life; BCD support allows direct USB power harvesting during firmware update. |
| CAN-Based Building Gateway | Smart Power Outlet Controller |
Use Scenario: DIN-rail mounted gateway bridging Modbus RTU field devices to USB/Ethernet backbone via CAN bus. IC Role / Device Role / Timing Role: Dual-interface bridge MCU executing CAN message filtering, USB CDC ACM protocol translation, and watchdog-monitored packet forwarding. Use Value: Simultaneous CAN and USB operation with dedicated DMA channels prevents CPU bottlenecks; 5V-tolerant I/O simplifies level-shifting with legacy industrial sensors. | Use Scenario: Wi-Fi-enabled smart outlet with local load monitoring, zero-crossing detection, and USB service port for factory provisioning. IC Role / Device Role / Timing Role: Real-time load controller using ADC for current sensing, comparator for zero-crossing, and DAC for reference voltage generation. Use Value: On-chip 12-bit ADC + comparator + DAC replaces 3 discrete analog ICs; independent VDDIO2 allows direct connection to 2.5 V isolation amplifier. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar 32-bit ARM Cortex-M0 microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| STM32F070CBT6 | No CAN, no USB; 128 KB Flash, same 48-pin UFQFPN package | Lacks USB/CAN interfaces - suitable only for cost-sensitive non-communication applications | Select when CAN/USB are unnecessary and BOM cost reduction is primary goal. |
| STM32F072RBT6 | LQFP64 package (10×10 mm), adds 2 more timers and 1 extra USART vs. CBY7TR | Requires larger PCB footprint but offers higher peripheral density for complex control tasks | Select when additional UART/SPI channels or advanced timer features (e.g., complementary PWM) are required. |
Compared with STM32F072CBY7TR, STM32F070CBT6 sacrifices USB/CAN for lower unit cost and smaller footprint, while STM32F072RBT6 trades compactness for expanded peripheral count and routing flexibility in LQFP64 - making CBY7TR optimal for space-constrained USB+CAN edge nodes.
Availability
STM32F072CBY7TR is available at Aetrix Electronics and suitable for industrial HMI, USB-connected sensor nodes, and CAN-based building automation gateways requiring stable component supply, long-term lifecycle assurance, and traceable sourcing.
Supply support for STM32F072CBY7TR 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, specializing in microcontrollers, power management, sensors, and automotive ICs - with over 40 years of industrial-grade silicon design expertise.
The STM32F0 series targets cost-sensitive, resource-constrained embedded applications requiring high integration, low power, and USB/CAN connectivity - designed specifically for industrial controls, consumer appliances, and smart peripherals.
FAQ
Does STM32F072CBY7TR support USB device mode without an external crystal?
Yes. It integrates an internal 48 MHz HSI48 oscillator with Clock Recovery System (CRS) that dynamically trims frequency against USB SOF packets, achieving ±0.25% accuracy - eliminating need for external crystal while maintaining full USB 2.0 Full-Speed compliance.
What is the maximum operating temperature range for STM32F072CBY7TR?
The STM32F072CBY7TR is rated for industrial temperature range: –40 °C to +85 °C. This is confirmed in Section 6.3.1 of DS9826 Rev 6, with validated electrical performance and timing margins across this range under specified VDD and load conditions.
How many I/O pins support 5V tolerance, and can they be used with 5V peripherals directly?
Up to 68 I/O pins are 5V tolerant when VDD is ≥2.0 V. They accept 5V logic inputs safely without external level shifters, but output voltage remains clamped to VDD - so driving 5V loads requires external buffer or open-drain configuration with pull-up to 5V.
Is there hardware support for capacitive touch sensing, and how many channels are available?
Yes. The integrated Touch Sensing Controller (TSC) supports up to 24 capacitive sensing channels across GPIOs PA0–PA7, PB0–PB1, PC0–PC7, PF0–PF1 - enabling robust touchkey, linear slider, or rotary encoder implementation with built-in charge-transfer measurement and noise immunity algorithms.
STM32F072CBY7TR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- STMicroelectronics
- Package/Case:
- 49-UFBGA, WLCSP
- Series:
- STM32F0
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Programmable:
- Not Verified
- Core Processor:
- ARM® Cortex®-M0
- Core Size:
- 32-Bit Single-Core
- Speed:
- 48MHz
- Connectivity:
- CANbus, HDMI-CEC, I2C, IrDA, LINbus, SPI, UART/USART, USB
- Peripherals:
- DMA, I2S, POR, PWM, WDT
- Number of I/O:
- 37
- Program Memory Size:
- 128KB (128K x 8)
- Program Memory Type:
- FLASH
- EEPROM Size:
- -
- RAM Size:
- 16K x 8
- Voltage - Supply (Vcc/Vdd):
- 1.65V ~ 3.6V
- Data Converters:
- A/D 10x12b; D/A 2x12b
- Oscillator Type:
- Internal
- Operating Temperature:
- -40°C ~ 105°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
STM32F072CBY7TR FAQ
1.How can I place an order for STM32F072CBY7TR through Aetrix?
Please submit a Request for Quotation (RFQ) for STM32F072CBY7TR 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 STM32F072CBY7TR reliable?
The price and inventory of STM32F072CBY7TR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for STM32F072CBY7TR is usually 5 days.
3.What payment methods are accepted for STM32F072CBY7TR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for STM32F072CBY7TR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for STM32F072CBY7TR?
STM32F072CBY7TR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your STM32F072CBY7TR 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 STM32F072CBY7TR?
For technical support, including STM32F072CBY7TR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your STM32F072CBY7TR requirements.
6.How does Aetrix verify that STM32F072CBY7TR is sourced from the original manufacturer or authorized distributors?
All STM32F072CBY7TR 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 STM32F072CBY7TR meets industry standards.
7.What is the process for return or replacement of STM32F072CBY7TR?
All STM32F072CBY7TR units undergo pre-shipment inspection (PSI). If there is an issue with STM32F072CBY7TR, 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 STM32F072CBY7TR part is unused and in its original packaging.
Return procedure for STM32F072CBY7TR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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