My Inquiry
My Account
STMicroelectronics STM32F042C6T6TR
- Part No.:
- STM32F042C6T6TR
- Manufacturer:
- STMicroelectronics
- Category:
- Microcontrollers
- Package:
- 48-LQFP
- Datasheet:
-
STM32F042C6T6TR.pdf
- Description:
- IC MCU 32BIT 32KB FLASH 48LQFP
- Quantity:
- Payment:
- Shipping:
Inventory:4,303
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
STM32F042C6T6TR from STMicroelectronics is a 32-bit ARM® Cortex®-M0 microcontroller with 32 KB Flash, 6 KB SRAM, crystal-less USB 2.0 Full-Speed interface, CAN 2.0B controller, and integrated 12-bit ADC (1.0 µs conversion). It operates from 2.0–3.6 V and supports up to 48 MHz CPU frequency. Used in industrial sensor nodes requiring embedded USB connectivity, CAN bus interfacing, and low-power real-time control.
For engineers reviewing the STM32F042C6T6TR datasheet, STM32F042C6T6TR pinout, STM32F042C6T6TR application, or STM32F042C6T6TR equivalent, key selection criteria include USB clocking autonomy (48 MHz internal oscillator with trimming), 5 V-tolerant I/O count (up to 24 pins), CAN+USB coexistence capability, and capacitive touch sensing support for HMI interfaces.
Technical Context
The device integrates a single-cycle ARM Cortex-M0 core with NVIC, SWD debug, and 96-bit unique ID. Its clock system combines four internal oscillators-including a factory-trimmed 48 MHz HSI48 for USB-and supports external 4–32 MHz crystals and 32 kHz RTC sources.
Peripheral integration includes one advanced-control timer (TIM1) for 6-channel PWM, nine total timers (including SysTick, IWDG, WWDG), two USARTs (one with ISO7816/LIN/IrDA), two SPIs (one with I2S), one I2C (Fast Mode Plus), CAN 2.0B, and HDMI CEC. The 12-bit ADC features 10 channels, hardware parity on SRAM, and CRC unit for firmware integrity.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| CPU Core | ARM Cortex-M0, up to 48 MHz - enables deterministic real-time execution with <100 ns interrupt latency. |
| Memory | 32 KB Flash + 6 KB SRAM with HW parity - supports secure firmware storage and error-detectable RAM for safety-critical variables. |
| USB Interface | Crystal-less USB 2.0 FS - eliminates external 48 MHz crystal, reducing BOM cost and PCB area while maintaining USB compliance. |
| CAN Interface | CAN 2.0B controller - enables robust automotive/industrial fieldbus communication with message filtering and FIFO buffering. |
| ADC | 12-bit, 1.0 µs conversion, 10-channel - delivers 1 MSPS sampling for motor current sensing or multi-sensor data acquisition. |
| I/O Voltage Tolerance | Up to 24 pins 5 V tolerant - allows direct interfacing with legacy 5 V logic without level shifters in mixed-voltage systems. |
| Low-Power Modes | Sleep, Stop, Standby with RTC/VBAT backup - achieves <1 µA Standby current for battery-backed applications like smart meters. |
Pinout & Package
LQFP48 package (7 × 7 mm, 0.5 mm pitch), RoHS-compliant ECOPACK®2, rated for industrial temperature range (–40 °C to +85 °C).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDD, VSS | Digital power supply / ground | Core and I/O domain supply (2.0–3.6 V); decoupling required per datasheet layout guidelines. |
| VDDA, VSSA | Analog power supply / ground | Separate 2.4–3.6 V analog rail for ADC/TSC/RTC; must be filtered independently from digital supply. |
| PA11, PA12 | USB DM/DP | Dedicated full-speed USB transceiver pins; internal pull-ups enabled via software; no external resistors needed. |
| PB8, PB9 | CAN RX/TX | Direct connection to external CAN transceiver; support high-speed (1 Mbit/s) and fault-tolerant configurations. |
| NRST | Active-low reset input | Asynchronous reset with internal pull-up; accepts 1.65–3.6 V logic; debounced by internal circuitry. |
| BOOT0 | Boot mode selection | High at power-on selects system memory bootloader; used for field firmware updates via USART or USB DFU. |
Key Features
| Feature | Design Value |
|---|---|
| Crystal-less USB 2.0 FS | Internal 48 MHz HSI48 oscillator with automatic trimming against USB SOF packet - eliminates external crystal and matching capacitors. |
| Capacitive Touch Sensing (TSC) | 14-channel controller supporting touchkey, linear, and rotary sensors - enables button/slider UI without external ICs or firmware overhead. |
| Advanced-Control Timer (TIM1) | 16-bit, 6-channel complementary PWM with dead-time insertion and fault protection - suitable for BLDC motor gate driving. |
| I2C Fast Mode Plus | 1 Mbit/s operation with 20 mA current sink - drives longer buses or higher-capacitance loads without external pull-up boosters. |
| Programmable Voltage Detector (PVD) | Configurable threshold (2.2–2.9 V in steps) with interrupt generation - enables graceful shutdown before brown-out resets. |
Applications
| Industrial Sensor Node | USB-Capable HMI Controller |
|---|---|
Use Scenario: Compact environmental monitoring node with temperature/humidity/pressure sensors, CAN fieldbus reporting, and local USB configuration port. IC Role / Device Role / Timing Role: Central MCU managing sensor ADC reads, CAN message framing, USB CDC virtual COM port, and RTC timestamping. Use Value: Single-chip solution eliminates external USB PHY and CAN transceiver clocking components; 5 V-tolerant GPIOs simplify sensor interface design. |
Use Scenario: Touch-enabled control panel for HVAC or lighting systems with physical buttons, slider, and LED feedback. IC Role / Device Role / Timing Role: TSC-driven HMI processor handling capacitive sensing, LED PWM dimming, and USB HID report generation. Use Value: Integrated TSC reduces component count and firmware complexity; crystal-less USB enables plug-and-play configuration without external timing parts. |
| Automotive Body Control Module | Smart Energy Meter Interface |
Use Scenario: Low-cost door module controlling window lift, mirror adjustment, and interior lighting via LIN/UART and PWM outputs. IC Role / Device Role / Timing Role: Real-time actuator controller with LIN physical layer support, 6-channel PWM generation, and watchdog supervision. Use Value: Dual USARTs enable simultaneous LIN communication and diagnostic UART; advanced timer supports synchronized motor drive waveforms. |
Use Scenario: Electricity meter with pulse counting, tamper detection, RTC calendar, and USB/RS-485 communication for utility data upload. IC Role / Device Role / Timing Role: Secure metering host managing metrology interface, VBAT-backed RTC, USB BCD charging detection, and backup register retention. Use Value: VBAT-supplied RTC and backup registers maintain time and event logs during main power loss; USB BCD support enables direct USB charger compatibility. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| STM32F072CBT6 | 64 KB Flash, 8 KB SRAM, same peripherals plus USB OTG FS, no TSC | Higher code capacity and USB OTG host/device support; lacks capacitive touch sensing | Select when firmware size exceeds 32 KB or dual-role USB functionality is required; not suitable for touch-based UIs. |
| STM32F042F6P6 | TSSOP20 package (20-pin), 32 KB Flash, reduced I/O count (15 GPIO), no CAN | Smaller footprint and lower cost; omits CAN, USB DP/DM, and 12-bit ADC channels | Choose for space-constrained, non-CAN, non-USB applications where only basic control and analog sensing are needed. |
Compared with STM32F042C6T6TR, STM32F072CBT6 offers greater memory and USB flexibility but sacrifices touch sensing, while STM32F042F6P6 trades peripheral richness and I/O count for compactness-making the C6T6TR optimal for balanced USB+CAN+touch designs in LQFP48 form factor.
Availability
STM32F042C6T6TR is available at Aetrix Electronics and suitable for industrial sensor nodes, USB-capable HMIs, automotive body controllers, and smart energy meter interfaces requiring stable component supply across extended product lifecycles.
Supply support for STM32F042C6T6TR 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 devices, sensors, and analog ICs for industrial, automotive, and consumer markets.
This part belongs to the STM32F0 mainstream Arm Cortex-M0 series, engineered for cost-sensitive, low-power embedded applications demanding rich analog/mixed-signal integration, USB connectivity, and industrial-grade reliability.
FAQ
Does STM32F042C6T6TR require an external crystal for USB operation?
No. It features an internal 48 MHz HSI48 oscillator with automatic trimming based on USB Start-of-Frame (SOF) packets, enabling fully crystal-less USB 2.0 Full-Speed operation. This eliminates external crystal components and associated layout constraints while maintaining USB specification compliance.
What is the maximum number of 5 V-tolerant I/O pins on this device?
Up to 24 I/O pins are 5 V tolerant, including all pins in GPIO ports A, B, and F except PA13/PA14 (SWD) and PB3/PB4 (JTAG). These tolerate 5 V inputs regardless of VDD level (2.0–3.6 V), simplifying interface with legacy 5 V peripherals without external level shifters.
Can the built-in CAN controller operate simultaneously with USB?
Yes. The CAN 2.0B controller and USB 2.0 Full-Speed interface operate independently with separate clock domains and DMA channels. Both peripherals can be active concurrently-e.g., CAN for fieldbus telemetry and USB for configuration-without resource conflict or performance degradation.
Is the capacitive touch sensing (TSC) function supported in the LQFP48 package?
Yes. All 14 TSC channels are accessible on LQFP48 via dedicated pins (PA0–PA7, PB0–PB1, PF0–PF1), confirmed in Table 5 and pin definition tables of the official datasheet. No package-dependent limitation applies-the full TSC feature set is available in this variant.
STM32F042C6T6TR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- STMicroelectronics
- Package/Case:
- 48-LQFP
- 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:
- 38
- Program Memory Size:
- 32KB (32K x 8)
- Program Memory Type:
- FLASH
- EEPROM Size:
- -
- RAM Size:
- 6K x 8
- Voltage - Supply (Vcc/Vdd):
- 1.65V ~ 3.6V
- Data Converters:
- A/D 13x12b
- Oscillator Type:
- Internal
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
STM32F042C6T6TR FAQ
1.How can I place an order for STM32F042C6T6TR through Aetrix?
Please submit a Request for Quotation (RFQ) for STM32F042C6T6TR 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 STM32F042C6T6TR reliable?
The price and inventory of STM32F042C6T6TR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for STM32F042C6T6TR is usually 5 days.
3.What payment methods are accepted for STM32F042C6T6TR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for STM32F042C6T6TR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for STM32F042C6T6TR?
STM32F042C6T6TR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your STM32F042C6T6TR 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 STM32F042C6T6TR?
For technical support, including STM32F042C6T6TR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your STM32F042C6T6TR requirements.
6.How does Aetrix verify that STM32F042C6T6TR is sourced from the original manufacturer or authorized distributors?
All STM32F042C6T6TR 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 STM32F042C6T6TR meets industry standards.
7.What is the process for return or replacement of STM32F042C6T6TR?
All STM32F042C6T6TR units undergo pre-shipment inspection (PSI). If there is an issue with STM32F042C6T6TR, 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 STM32F042C6T6TR part is unused and in its original packaging.
Return procedure for STM32F042C6T6TR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
STM32F042C6T6TR 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…
