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STMicroelectronics STM32F091CCU7
- Part No.:
- STM32F091CCU7
- Manufacturer:
- STMicroelectronics
- Category:
- Microcontrollers
- Package:
- 48-UFQFN Exposed Pad
- Datasheet:
-
STM32F091CCU7.pdf
- Description:
- IC MCU 32BIT 256KB FLSH 48UFQFPN
- Quantity:
- Payment:
- Shipping:
Inventory:3,010
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Product details
Overview
STM32F091CCU7 from STMicroelectronics is a 32-bit ARM Cortex-M0 microcontroller with 256 KB Flash, 32 KB SRAM, integrated CAN 2.0B interface, dual 12-bit DAC channels, and 12-bit ADC (16-channel, 1.0 µs conversion). It operates from 2.0–3.6 V and supports industrial motor control, smart sensor hubs, and CAN-based automotive body electronics.
For engineers reviewing the STM32F091CCU7 datasheet, STM32F091CCU7 pinout, STM32F091CCU7 application, or STM32F091CCU7 equivalent, key selection factors include its 48 MHz max CPU frequency, 88 fast I/Os (69 with 5V tolerance), hardware CRC unit, RTC with calibration, and UFBGA64 package with VDDIO2-independent supply for mixed-voltage interfacing.
Technical Context
This MCU integrates an ARM Cortex-M0 core with tightly coupled peripherals including two I²C interfaces (one supporting SMBus/PMBus and wakeup), eight USARTs (three with ISO7816, LIN, IrDA), two SPI/I²S modules, and a dedicated CAN 2.0B controller with programmable bit timing and automatic retransmission. Its clock system combines internal oscillators (HSI48 with auto-trimming, LSI, LSE) and external crystal support (4–32 MHz HSE, 32 kHz RTC).
The device features advanced power management with Sleep/Stop/Standby modes, programmable voltage detector (PVD), VBAT backup for RTC and registers, and a 12-channel DMA controller enabling zero-CPU-overhead peripheral transfers. Analog subsystem includes dual 12-bit DACs, one 12-bit ADC with temperature sensor and VREFINT, two fast comparators, and up to 24 capacitive sensing channels.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| CPU Core | ARM Cortex-M0, 48 MHz max - enables real-time deterministic control in compact firmware footprint |
| Flash Memory | 256 KB - sufficient for complex CAN protocol stacks, touch sensing firmware, and OTA update partitions |
| SRAM | 32 KB with hardware parity - supports robust data buffering and stack safety in safety-critical applications |
| Analog Peripherals | 1×12-bit ADC (16 ch, 1.0 µs), 2×12-bit DAC, 2×comparators - enables closed-loop analog control without external signal chain components |
| Communication | CAN 2.0B, 2×I²C (Fast Mode Plus), 8×USART (3×ISO7816), 2×SPI/I²S - meets automotive body control and industrial fieldbus requirements |
| I/O Capability | 88 fast I/Os; 69 with 5V tolerance, 19 with independent VDDIO2 supply - simplifies level-shifting in multi-rail systems |
| Package | UFBGA64 (5 × 5 mm, 0.5 mm pitch) - provides high pin density and thermal performance for space-constrained PCBs |
Pinout & Package
The STM32F091CCU7 is housed in a 64-ball UFBGA package (5 × 5 mm, 0.5 mm pitch) compliant with ECOPACK®2 environmental standards. Ball pitch and pad layout follow JEDEC MO-277AB specifications, supporting fine-pitch routing and automated assembly.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDD, VDDA, VSS, VSSA | Power and ground rails | Digital (VDD/VSS) and analog (VDDA/VSSA) supplies must be decoupled separately; VDDA range 2.4–3.6 V ensures ADC/DAC accuracy |
| PA13/PA14/SWCLK/SWDIO | Serial Wire Debug interface | Enables non-intrusive debugging and programming without dedicated JTAG pins; requires no external pull-ups |
| PD0/PD1 (CAN_RX/CAN_TX) | CAN physical layer interface | Direct connection to CAN transceiver; supports 1 Mbit/s operation with programmable sample point and synchronization jump width |
| PA0–PA15, PB0–PB15, etc. | General-purpose I/Os | Up to 69 pins tolerate 5V inputs while powered at 2.0–3.6 V; 19 pins support independent VDDIO2 for flexible I/O voltage domains |
| PC13/PC14/PC15 | RTC oscillator inputs | Support external 32.768 kHz crystal; PC14/PC15 require load capacitors (12.5 pF typical) per oscillator spec |
Key Features
| Feature | Design Value |
|---|---|
| Hardware CRC calculation unit | Accelerates firmware integrity checks and communication frame checksums without CPU overhead |
| Capacitive sensing controller (TSC) | Supports up to 24 channels for touchkey, linear, and rotary sensors-enables UI without external ICs |
| Calendar RTC with alarm & wakeup | Retains time/date across Stop/Standby modes using VBAT; alarm triggers interrupt or system wakeup |
| Advanced-control timer (TIM1) | 16-bit, 6-channel complementary PWM output with dead-time insertion-ideal for 3-phase motor gate drive |
| HDMI CEC wakeup | Enables low-power listening mode for consumer electronics remote control commands via header pin |
Applications
| Industrial Motor Control | Automotive Body Electronics |
|---|---|
Use Scenario: Brushless DC motor commutation in HVAC blowers or power seats. IC Role / Device Role / Timing Role: Real-time PWM generation (TIM1), current sensing (ADC), CAN message handling, and fault monitoring. Use Value: Integrated 6-channel PWM with dead-time control eliminates external gate driver logic; CAN interface enables direct ECU integration. | Use Scenario: Central body controller managing door locks, lighting, and window lift. IC Role / Device Role / Timing Role: CAN node endpoint with ISO7816-compatible USART for key fob authentication and LIN slave for interior sensors. Use Value: Dual CAN/I²C/USART support consolidates multiple bus protocols into single chip; 5V-tolerant I/Os interface directly with legacy 5V sensors. |
| Smart Sensor Hub | Energy Monitoring Gateway |
Use Scenario: Multi-sensor aggregator (temperature, humidity, motion) with local processing and wireless uplink. IC Role / Device Role / Timing Role: ADC acquisition, capacitive touch interface, RTC timestamping, and SPI flash storage control. Use Value: On-chip TSC and calibrated temperature sensor reduce BOM cost; 32 KB SRAM buffers sensor logs before transmission. | Use Scenario: DIN-rail mounted meter collecting voltage/current via shunt or CT, reporting via RS-485 or CAN. IC Role / Device Role / Timing Role: High-accuracy 12-bit ADC sampling at 1 MSPS, dual DAC for analog output calibration, and CAN for grid-level communication. Use Value: Simultaneous sampling and hardware averaging improve measurement repeatability; VREFINT and temperature sensor enable self-calibration. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| STM32F072CBT6 | 128 KB Flash, no CAN, 1×DAC, 64-pin LQFP only | Lacks CAN interface and second DAC; limited to USB-based control, not vehicle networks | Select when CAN is unnecessary and USB device functionality is required |
| STM32F303CBT6 | Cortex-M4F core, 128 KB Flash, FPU, no CAN, 2×DAC, 12-bit ADC + op-amps | Higher compute throughput but no native CAN; analog op-amps enable active filtering | Choose for math-intensive sensor fusion where CAN is handled externally |
Compared with STM32F072CBT6 and STM32F303CBT6, the STM32F091CCU7 uniquely delivers CAN 2.0B + dual DAC + 256 KB Flash in UFBGA64, making it optimal for space-constrained, networked embedded nodes requiring analog actuation and long-term firmware extensibility.
Availability
STM32F091CCU7 is available at Aetrix Electronics and suitable for industrial motor control, automotive body electronics, smart sensor hubs, and energy monitoring gateways requiring stable component supply across extended production lifecycles.
Supply support for STM32F091CCU7 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.
The STM32F0 series targets cost-sensitive, resource-efficient applications demanding ARM Cortex-M0 performance, rich analog integration, and industrial-grade reliability - optimized for entry-level embedded control with minimal external components.
FAQ
What is the maximum operating frequency and voltage range for the STM32F091CCU7?
The STM32F091CCU7 operates at up to 48 MHz CPU frequency with a supply voltage range of 2.0 V to 3.6 V for digital I/Os and 2.4 V to 3.6 V for the analog domain (VDDA). Its internal 48 MHz oscillator (HSI48) is factory-trimmed to ±2% accuracy and supports automatic synchronization to external signals for USB or CEC timing compliance.
Does the STM32F091CCU7 support hardware debug and programming interfaces?
Yes - it includes Serial Wire Debug (SWD) via PA13 (SWDIO) and PA14 (SWCLK), requiring no additional pins beyond standard GPIO. SWD supports full-speed debugging, flash programming, and real-time memory access. No JTAG header is needed, reducing PCB footprint and simplifying test fixture design.
How many CAN interfaces does the STM32F091CCU7 integrate, and what protocol versions are supported?
The STM32F091CCU7 integrates one CAN 2.0B-compliant controller supporting both standard (11-bit) and extended (29-bit) identifier frames, with programmable bit timing, automatic retransmission, and 14-message mailbox FIFO. It does not support CAN FD; maximum data rate is 1 Mbit/s under specified electrical conditions.
What packaging and RoHS compliance status applies to the STM32F091CCU7?
The STM32F091CCU7 is supplied in a 64-ball UFBGA package (5 × 5 mm, 0.5 mm pitch) and is fully RoHS-compliant and ECOPACK®2 certified. It meets JEDEC MO-277AB mechanical specifications and supports lead-free reflow profiles (J-STD-020D), with moisture sensitivity level (MSL) 3 at 260 °C peak.
STM32F091CCU7 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- STMicroelectronics
- Package/Case:
- 48-UFQFN Exposed Pad
- Series:
- STM32F0
- Packaging:
- Tray
- Product Status:
- Active
- Programmable:
- Not Verified
- Core Processor:
- ARM® Cortex®-M0
- Core Size:
- 32-Bit Single-Core
- Speed:
- 48MHz
- Connectivity:
- CANbus, I2C, IrDA, LINbus, SPI, UART/USART
- Peripherals:
- DMA, I2S, POR, PWM, WDT
- Number of I/O:
- 38
- Program Memory Size:
- 256KB (256K x 8)
- Program Memory Type:
- FLASH
- EEPROM Size:
- -
- RAM Size:
- 32K x 8
- Voltage - Supply (Vcc/Vdd):
- 2V ~ 3.6V
- Data Converters:
- A/D 13x12b; D/A 2x12b
- Oscillator Type:
- Internal
- Operating Temperature:
- -40°C ~ 105°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
STM32F091CCU7 FAQ
1.How can I place an order for STM32F091CCU7 through Aetrix?
Please submit a Request for Quotation (RFQ) for STM32F091CCU7 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 STM32F091CCU7 reliable?
The price and inventory of STM32F091CCU7 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for STM32F091CCU7 is usually 5 days.
3.What payment methods are accepted for STM32F091CCU7?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for STM32F091CCU7 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for STM32F091CCU7?
STM32F091CCU7 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your STM32F091CCU7 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 STM32F091CCU7?
For technical support, including STM32F091CCU7 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your STM32F091CCU7 requirements.
6.How does Aetrix verify that STM32F091CCU7 is sourced from the original manufacturer or authorized distributors?
All STM32F091CCU7 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 STM32F091CCU7 meets industry standards.
7.What is the process for return or replacement of STM32F091CCU7?
All STM32F091CCU7 units undergo pre-shipment inspection (PSI). If there is an issue with STM32F091CCU7, 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 STM32F091CCU7 part is unused and in its original packaging.
Return procedure for STM32F091CCU7:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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