STM32F050G4U6 STMicroelectronics Integrated Circuit (Quad Flat No-Lead) In Stock
STMicroelectronics STM32F050G4U6 is a 32-bit ARM Cortex-M0 microcontroller running at 48 MHz with 16 kB Flash and 4 kB RAM, featuring I2C and UART peripherals, operating at 2.5 V or 3.3 V in a compact 28-pin UFQFPN package. Available worldwide.
- Manufacturer
- STMicroelectronics
- Package
- Quad Flat No-Lead
- Pin Count
- 28
- Lifecycle
- OBSOLETE
- Datasheet
- STM32F050G4U6 Datasheet PDF
- Category
- Integrated Circuit
- Temp Range
- -40.0°C to 85.0°C
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
Key Features
- ARM Cortex-M0 core at 48 MHz delivering cost-efficient 32-bit processing for entry-level embedded applications
- 16 kB Flash and 4 kB RAM in a 28-pin UFQFPN package for ultra-compact IoT and wearable designs
- 2.5 V and 3.3 V supply voltage support enabling direct interface with modern low-voltage logic families
- I2C and UART peripherals integrated on-chip reducing external component count in sensor hub designs
- UFQFPN-28 chip-carrier package with 0.5 mm pitch for miniaturized PCB footprints
Applications
The STM32F050G4U6 is designed for cost-sensitive, space-constrained embedded applications including smart home sensors, wearable devices, and industrial I/O expanders. Its 48 MHz Cortex-M0 core with 16 kB Flash is sufficient for simple communication stacks, motor commutation logic, and peripheral control in consumer electronics. The 28-pin UFQFPN package with 5 mm x 5 mm body makes it suitable for compact PCB designs where board area is at a premium.
Specifications
| YTEOL | 0 |
| Bit Size | 32 |
| CPU Family | CORTEX-M0 |
| JESD-30 Code | S-PQCC-N28 |
| Package Body Material | PLASTIC/EPOXY |
| Package Equivalence Code | LCC28,.16SQ,20 |
| Package Shape | SQUARE |
| Package Style | CHIP CARRIER |
| Power Supplies | 2.5/3.3 V |
| Qualification Status | Not Qualified |
| RAM (bytes) | 4096 |
| ROM (words) | 16384 |
| ROM Programmability | FLASH |
| Speed | 48MHz |
| Subcategory | Microcontrollers |
| Supply Current-Max | 23.2mA |
| Surface Mount | YES |
| Technology | CMOS |
| Temperature Grade | INDUSTRIAL |
| Terminal Form | NO LEAD |
| Terminal Pitch | 0.5mm |
| Terminal Position | QUAD |
| Package | Quad Flat No-Lead |
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
Alternate & Equivalent Parts
Compatible alternatives and drop-in replacements for STM32F050G4U6:
Frequently Asked Questions
How much Flash and RAM does STM32F050G4U6 provide, and what firmware fits within those limits?
The STM32F050G4U6 includes 16 kB of Flash and 4 kB of RAM. This is sufficient for lightweight sensor acquisition firmware, simple communication protocols such as I2C or UART, and small state machine applications. Bare-metal C code for reading an ADC and transmitting over I2C typically occupies 4 kB to 8 kB of Flash, leaving room for configuration tables and interrupt handlers.
At what clock frequency does the STM32F050G4U6 CPU operate, and how does this affect processing throughput?
The STM32F050G4U6 runs its ARM Cortex-M0 core at up to 48 MHz, delivering approximately 48 DMIPS. For a 16-bit ADC sample-process-transmit loop, this clock rate supports update rates well above 10 kHz, making the part suitable for real-time sensor processing in HVAC, white goods, and industrial monitoring where millisecond-level response is required.
Which supply voltage rails are compatible with STM32F050G4U6 in a mixed 3.3 V and 2.5 V system?
The STM32F050G4U6 operates from 2.5 V to 3.6 V supply rails, making it directly compatible with both 3.3 V and 2.5 V system domains without level-shifting or additional regulators. This is advantageous in battery-powered systems where a single LDO output can power both the MCU and low-voltage peripheral sensors simultaneously.
For a compact IoT gateway PCB, how small is the STM32F050G4U6 package and what is its pin pitch?
The STM32F050G4U6 uses a UFQFPN-28 package measuring 4 mm x 4 mm with a 0.5 mm pin pitch. This chip-carrier format requires reflow soldering with stencil paste printing, but allows placement on very small PCBs alongside 0402 passives, occupying roughly 16 mm² of board area for the MCU alone.
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About STMicroelectronics
STMicroelectronics is a global semiconductor leader serving customers across the spectrum of electronics applications. ST's products are found in a wide range of applications including automotive, industrial, personal electronics, and communications.
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