My Inquiry
My Account
STMicroelectronics STM32G081EBY3TR
- Part No.:
- STM32G081EBY3TR
- Manufacturer:
- STMicroelectronics
- Category:
- Microcontrollers
- Package:
- 25-UFBGA, WLCSP
- Datasheet:
-
STM32G081EBY3TR.pdf
- Description:
- IC MCU 32BIT 128KB FLASH 25WLCSP
- Quantity:
- Payment:
- Shipping:
Inventory:2,671
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
STM32G081EBY3TR from STMicroelectronics is a 32-bit Arm® Cortex®-M0+ microcontroller with 128 KB Flash, 36 KB SRAM, dual 12-bit DACs, 12-bit ADC (0.4 µs conversion), and AES-128/256 hardware encryption. It operates from 1.7–3.6 V across –40°C to 125°C and integrates USB Type-C™ Power Delivery controller, RTC with alarm, and four USARTs - deployed in industrial sensor nodes requiring secure, low-power edge processing.
For engineers reviewing the STM32G081EBY3TR datasheet, STM32G081EBY3TR pinout, STM32G081EBY3TR application, or STM32G081EBY3TR equivalent, key selection criteria include its 64 MHz max CPU frequency, 60 GPIOs (including 5 V-tolerant), dual DAC support for analog actuation, hardware RNG for cryptographic key generation, and LQFP64 package compatibility with legacy PCB layouts.
Technical Context
The STM32G081EBY3TR implements an Arm Cortex-M0+ core with Memory Protection Unit (MPU) and supports up to 64 MHz operation via internal 16 MHz RC + PLL or external 4–48 MHz crystal. Its clock system includes dual oscillators (HSE/LSE), programmable voltage detector (PVD), and brownout reset (BOR) for robust power management in fluctuating supply environments.
It features a 14-timer suite including two 128 MHz-capable advanced timers (TIM1/TIM17), one 32-bit general-purpose timer, five 16-bit GP timers, two low-power timers (LPTIM1/LPTIM2), and dual watchdogs - enabling precise motor control, real-time event scheduling, and ultra-low-power wake-up from Stop/Standby modes using LPUART or RTC.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| CPU Core | Arm Cortex-M0+, 64 MHz max - enables deterministic real-time execution with MPU for task isolation in firmware updates. |
| Memory | 128 KB Flash (with securable area), 36 KB SRAM (32 KB with HW parity) - supports encrypted firmware storage and ECC-protected RAM for safety-critical data buffers. |
| Analog Peripherals | 12-bit ADC (16-channel, 0.4 µs), two 12-bit DACs, two rail-to-rail comparators - enables closed-loop analog sensing and actuation without external signal conditioning. |
| Communication | Four USARTs (two ISO7816/LIN/IrDA), two I²C (Fast-mode Plus), two SPI (32 Mbit/s), HDMI CEC, USB Type-C PD controller - supports multi-protocol fieldbus integration and battery-powered peripheral negotiation. |
| Security & Crypto | AES-128/256 hardware accelerator, True RNG, 96-bit unique ID - provides on-the-fly encryption for OTA firmware and entropy for TLS handshake key derivation. |
| Power Management | 1.7–3.6 V operation, Sleep/Stop/Standby/Shutdown modes, VBAT backup for RTC - achieves sub-µA standby current for battery-backed timekeeping in metering applications. |
| Package | LQFP64 (10 × 10 mm, 0.5 mm pitch) - compatible with standard reflow profiles and automated optical inspection (AOI) in high-volume manufacturing. |
Pinout & Package
LQFP64 package (10 × 10 mm, 0.5 mm pitch), ECOPACK2-compliant, with exposed thermal pad for enhanced heat dissipation in continuous 64 MHz operation.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDD, VDDA, VSS, VSSA | Power supply and ground rails | Dual-domain power separation ensures analog accuracy (VDDA) remains stable during digital switching noise on VDD. |
| PA0–PA15, PB0–PB15, PC0–PC15, PD0–PD15, PF0–PF1 | General-purpose I/Os | Up to 60 GPIOs, all mappable to EXTI; multiple pins are 5 V-tolerant - simplifies level-shifting in mixed-voltage systems. |
| NRST | Active-low reset input | Accepts external reset pulses or internal POR/PDR/BOR signals - enables synchronized recovery after brownout or watchdog timeout. |
| BOOT0 | Boot mode selection | High at power-up forces system memory boot (for DFU); low selects main Flash - critical for field firmware recovery sequences. |
| SWDIO / SWCLK | Serial Wire Debug interface | Two-pin debug port supporting flash programming and real-time trace - eliminates need for JTAG header space on compact PCBs. |
Key Features
| Feature | Design Value |
|---|---|
| USB Type-C Power Delivery controller | Enables bidirectional power negotiation and role swapping (source/sink) without external PD PHY - reduces BOM count in portable chargers and docking stations. |
| Hardware AES engine | Accelerates encryption/decryption at >10 MB/s throughput - offloads CPU during secure bootloader verification or encrypted sensor log storage. |
| Low-power timers (LPTIM1/LPTIM2) | Operate in Stop/Standby modes with 32 kHz LSE clock - allows precise periodic wake-up every 1–65535 seconds for sensor polling without full MCU restart. |
| Programmable voltage detector (PVD) | Configurable threshold (2.2–2.9 V in steps) triggers interrupt before brownout - enables graceful shutdown of peripherals prior to system reset. |
| True random-number generator (RNG) | Meets NIST SP800-90B entropy requirements - supplies cryptographically secure seeds for TLS handshakes and key derivation in IoT edge devices. |
Applications
| Industrial Sensor Node | Smart Energy Meter |
|---|---|
Use Scenario: Battery-powered temperature/humidity node transmitting data via LoRaWAN every 15 minutes. IC Role / Device Role / Timing Role: Main MCU executing sensor fusion, AES-encrypted payload generation, and LPUART wake-up from Stop mode. Use Value: Sub-1 µA Standby current extends 10-year battery life; dual DACs drive analog calibration references for sensor offset compensation. | Use Scenario: DIN-rail mounted electricity meter with tamper detection and remote firmware update over PLC. IC Role / Device Role / Timing Role: System controller managing metrology ADC interface, RTC-based billing intervals, and secure OTA update via AES-decrypted packets. Use Value: Hardware RNG ensures unique session keys per update; 125°C rating supports operation inside sealed enclosures near transformers. |
| USB-C Charging Dock | Motor Control Gateway |
Use Scenario: Multi-port dock negotiating power delivery profiles (5–20 V) while monitoring connected device status. IC Role / Device Role / Timing Role: USB-C PD policy engine coordinating CC line signaling, VBUS monitoring, and power path FET control via GPIOs. Use Value: Integrated USB-C PD controller eliminates external transceiver; 60 GPIOs route status LEDs, fan PWM, and thermal sensor inputs. | Use Scenario: BLDC motor gateway converting CAN commands to 3-phase PWM, with onboard current sensing and fault reporting. IC Role / Device Role / Timing Role: Real-time motor controller using TIM1's complementary PWM outputs and ADC-triggered current sampling. Use Value: Two 128 MHz-capable timers enable 20 kHz PWM carrier with dead-time insertion; CRC unit validates CAN frame integrity in software stack. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| STM32G071CBT6 | 64 KB Flash, 20 KB SRAM, no USB-C PD controller, same LQFP48 package | Lacks integrated USB-C PD logic; requires external PD PHY for charging negotiation | Select when USB-C PD is not required and cost reduction is prioritized over feature density. |
| STM32G0B1RET6 | 512 KB Flash, 144 KB SRAM, same peripherals plus USB FS, LQFP64 package | Higher memory capacity and USB 2.0 FS support; identical pinout but larger die size | Choose for future-proofing firmware scalability or adding USB HID/CDC functionality without PCB redesign. |
Compared with STM32G071CBT6, the STM32G081EBY3TR adds 64 KB Flash, USB-C PD, and extended temperature range - justifying its use in secure, power-negotiating edge nodes. Against STM32G0B1RET6, it trades memory headroom for lower cost and proven qualification in high-volume industrial deployments.
Availability
STM32G081EBY3TR is available at Aetrix Electronics and suitable for industrial sensor nodes, smart energy meters, USB-C charging docks, and motor control gateways requiring stable component supply across automotive-grade temperature ranges and long-term production cycles.
Supply support for STM32G081EBY3TR 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 analog components for industrial, automotive, and consumer markets.
The STM32G0 series targets cost-sensitive, low-power embedded applications demanding security, rich analog integration, and USB-C readiness - positioning the G081 as a mainstream entry into ST's scalable Cortex-M0+ portfolio.
FAQ
What is the maximum operating temperature specification for STM32G081EBY3TR?
The STM32G081EBY3TR is qualified for operation from –40°C to +125°C ambient temperature, verified per JEDEC JESD22-A104 and JESD22-A108 standards. This extended range supports deployment in enclosed industrial enclosures, automotive under-hood modules, and outdoor metering equipment without active cooling.
Does STM32G081EBY3TR support hardware-based secure boot?
Yes - it implements readout protection (RDP) levels with securable Flash area, boot lock bits, and hardware-enforced secure boot flow via system memory bootloader. The 96-bit unique ID and True RNG enable binding of firmware images to specific devices during manufacturing provisioning.
Can the dual DAC outputs be synchronized for simultaneous waveform generation?
Yes - both DAC channels (DAC1/DAC2) share a common trigger source (TIM6/TIM7 or software) and support synchronous update mode. This enables precise dual-channel analog output for differential signal generation, audio waveform synthesis, or coordinated actuator control without inter-channel skew.
Is the LQFP64 package of STM32G081EBY3TR RoHS and REACH compliant?
Yes - the LQFP64 package is ECOPACK2-compliant, meeting RoHS Directive 2011/65/EU and REACH Regulation (EC) No. 1907/2006. Lead-free matte tin finish, halogen-free molding compound, and fully traceable material declarations are provided in ST's official product change notifications (PCNs).
STM32G081EBY3TR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- STMicroelectronics
- Package/Case:
- 25-UFBGA, WLCSP
- Series:
- STM32G0
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Programmable:
- -
- Core Processor:
- ARM® Cortex®-M0+
- Core Size:
- 32-Bit
- Speed:
- 64MHz
- Connectivity:
- HDMI-CEC, I2C, IrDA, LINbus, SPI, UART/USART, USB
- Peripherals:
- Brown-out Detect/Reset, DMA, I2S, POR, PWM, WDT
- Number of I/O:
- 23
- Program Memory Size:
- 128KB (128K x 8)
- Program Memory Type:
- FLASH
- EEPROM Size:
- -
- RAM Size:
- 36K x 8
- Voltage - Supply (Vcc/Vdd):
- 1.7V ~ 3.6V
- Data Converters:
- A/D 12x12b; D/A 2x12b
- Oscillator Type:
- Internal
- Operating Temperature:
- -40°C ~ 125°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
STM32G081EBY3TR FAQ
1.How can I place an order for STM32G081EBY3TR through Aetrix?
Please submit a Request for Quotation (RFQ) for STM32G081EBY3TR 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 STM32G081EBY3TR reliable?
The price and inventory of STM32G081EBY3TR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for STM32G081EBY3TR is usually 5 days.
3.What payment methods are accepted for STM32G081EBY3TR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for STM32G081EBY3TR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for STM32G081EBY3TR?
STM32G081EBY3TR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your STM32G081EBY3TR 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 STM32G081EBY3TR?
For technical support, including STM32G081EBY3TR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your STM32G081EBY3TR requirements.
6.How does Aetrix verify that STM32G081EBY3TR is sourced from the original manufacturer or authorized distributors?
All STM32G081EBY3TR 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 STM32G081EBY3TR meets industry standards.
7.What is the process for return or replacement of STM32G081EBY3TR?
All STM32G081EBY3TR units undergo pre-shipment inspection (PSI). If there is an issue with STM32G081EBY3TR, 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 STM32G081EBY3TR part is unused and in its original packaging.
Return procedure for STM32G081EBY3TR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
STM32G081EBY3TR 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…
