STM32L011K4U7 STMicroelectronics Integrated Circuit (Quad Flat No-Lead) In Stock
STMicroelectronics STM32L011K4U7 is an ultra-low-power 32-bit ARM Cortex-M0+ microcontroller running up to 32 MHz with 16 KB Flash, 2 KB SRAM, 512 bytes EEPROM, and a 12-bit ADC in a compact UFQFPN-32 package. Designed for IoT sensors and wearables, it achieves sub-microamp stop-mode current to extend battery life. Available from stock with worldwide shipping.
- Manufacturer
- STMicroelectronics
- Package
- Quad Flat No-Lead
- Pin Count
- 33
- Lifecycle
- ACTIVE
- Datasheet
- STM32L011K4U7 Datasheet PDF
- Category
- Integrated Circuit
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
Key Features
- Ultra-low-power ARM Cortex-M0+ core at up to 32 MHz draws as little as 76 µA/MHz in run mode and under 0.29 µA in stop mode with RTC
- 16 KB Flash plus 512 bytes of integrated EEPROM eliminates the need for an external NVM chip in data-logging applications
- Integrated 12-bit ADC with up to 10 channels enables direct sensor interface without an external analog front end
- Compact UFQFPN-32 package (5 mm × 5 mm) with 28 GPIO lines suits space-constrained wearable and IoT node PCBs
Applications
STM32L011K4U7 targets battery-powered IoT edge nodes, environmental sensors, and wearable devices where sub-microamp sleep current and a small 5 mm × 5 mm footprint are critical. Its integrated EEPROM and 12-bit ADC reduce BOM cost for data-logging applications that periodically sample temperature, humidity, or pressure sensors. The 32 MHz Cortex-M0+ core provides sufficient compute for BLE peripheral stacks and simple signal processing between deep-sleep intervals.
Specifications
| YTEOL | 9 |
| Has ADC | YES |
| Bit Size | 32 |
| Clock Frequency-Max | 32MHz |
| DMA Channels | YES |
| Number of I/O Lines | 28 |
| PWM Channels | YES |
| Package Shape | SQUARE |
| Package Style | CHIP CARRIER, HEAT SINK/SLUG, VERY THIN PROFILE |
| Speed | 32MHz |
| Supply Voltage-Max | 3.6V |
| Supply Voltage-Min | 1.8V |
| Supply Voltage-Nom | 3V |
| Surface Mount | YES |
| Technology | CMOS |
| Terminal Form | NO LEAD |
| Terminal Pitch | 0.5mm |
| Terminal Position | QUAD |
| uPs/uCs/Peripheral ICs Type | MICROCONTROLLER, RISC |
| Package | Quad Flat No-Lead |
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
| ECCN | 3A991.a.2 |
| HTS Code | 8542.31.00.25 |
Alternate & Equivalent Parts
Compatible alternatives and drop-in replacements for STM32L011K4U7:
RISC Microcontroller, 32-Bit, FLASH, CORTEX-M0 CPU, 32MHz, CMOS, QCC32
RISC Microcontroller, 32-Bit, FLASH, CORTEX-M0 CPU, 32MHz, CMOS, QCC32
Frequently Asked Questions
What is the minimum current consumption of STM32L011K4U7 in stop mode, and how does it benefit battery-powered designs?
STM32L011K4U7 achieves a stop-mode current as low as 0.29 µA with the RTC active and 0.17 µA without, enabling a coin cell battery to sustain years of standby operation in environmental sensors and asset trackers. Run-mode consumption is approximately 76 µA/MHz at 32 MHz.
How much non-volatile storage does STM32L011K4U7 provide, and is external EEPROM needed?
STM32L011K4U7 integrates 16 KB of Flash program memory plus 512 bytes of true EEPROM on-chip, capable of 300,000 write cycles. This eliminates the need for an external SPI or I2C EEPROM in most data-logging applications, reducing BOM cost and PCB area.
Which package does STM32L011K4U7 use, and how many GPIO pins are accessible?
STM32L011K4U7 is housed in a UFQFPN-32 (QFN-style) package measuring 5 mm × 5 mm with an exposed thermal pad. It provides 28 GPIO lines, 2 USART interfaces, 1 SPI, and 1 I2C, making it well suited for wearable PCBs and compact IoT modules.
When is STM32L011K4U7 a suitable choice over STM32L010K8T6 for sensor node applications?
STM32L011K4U7 adds 512 bytes of integrated EEPROM absent in the STM32L010 line, avoiding an external EEPROM chip for parameter storage. Both share the 32 MHz Cortex-M0+ core and 1.65 V to 3.6 V supply range, but the L011 wins where persistent configuration data must survive power loss with the 300,000-cycle endurance guarantee.
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