STM32G0B1KBT3 STMicroelectronics Integrated Circuit (Quad Flat Packages) In Stock
STMicroelectronics STM32G0B1KBT3 is a mainstream 32-bit Arm Cortex-M0+ microcontroller with 128KB Flash, 144KB RAM, 6x USART, ADC, DAC, and DMA running at up to 48 MHz from 1.7V to 3.6V supply. Integrates 2-channel internal ADC, multiple timers, and a broad communication peripheral set in a LQFP package. Suited for cost-optimized consumer, industrial, and smart home applications with worldwide distribution.
- Manufacturer
- STMicroelectronics
- Package
- Quad Flat Packages
- Pin Count
- 32
- Lifecycle
- ACTIVE
- Datasheet
- STM32G0B1KBT3 Datasheet PDF
- Category
- Integrated Circuit
- Price
- From $2.2752(MOQ 100)
- Temp Range
- -40.0°C to 125.0°C
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
Key Features
- 32-bit Arm Cortex-M0+ core at 48 MHz with 128KB Flash and 144KB RAM, delivering 32-bit performance at 8-bit system cost for mid-complexity embedded designs
- Six USART interfaces plus integrated DAC and DMA channels enabling simultaneous multi-protocol communication and autonomous data transfers without CPU intervention
- 1.7V to 3.6V supply range with low-power modes supporting battery-operated and energy-harvesting IoT nodes alongside standard 3.3V regulated systems
Applications
The STM32G0B1KBT3 is designed for smart home hubs, building automation controllers, and IoT gateways that require six concurrent USART channels for multi-device serial communication alongside 32-bit Cortex-M0+ processing at 48 MHz. Its 144KB RAM and integrated DAC make it suitable for audio tone generation, motor drive waveform synthesis, and sensor data buffering in industrial control panels operating from 1.7V to 3.6V. The device fits point-of-load power manager designs and USB peripheral applications where the internal ADC monitors system voltages and DMA transfers sensor data without interrupting the main control loop.
Specifications
| Factory Lead Time | 12Weeks |
| YTEOL | 9 |
| Has ADC | YES |
| Additional Feature | 2-ch internal adc available |
| Bit Size | 32 |
| Boundary Scan | NO |
| CPU Family | CORTEX-M0 |
| Clock Frequency-Max | 48MHz |
| DAC Channels | YES |
| DMA Channels | YES |
| Format | FIXED POINT |
| Integrated Cache | NO |
| JESD-30 Code | S-PQFP-G32 |
| Low Power Mode | YES |
| Number of DMA Channels | 12 |
| Number of I/O Lines | 24 |
| Number of Serial I/Os | 8 |
| Number of Timers | 17 |
| On Chip Data RAM Width | 8 |
| On Chip Program ROM Width | 8 |
| PWM Channels | YES |
| Package Body Material | PLASTIC/EPOXY |
| Package Equivalence Code | QFP32,.35SQ,32 |
| Package Shape | SQUARE |
| Package Style | FLATPACK, LOW PROFILE |
| Peak Reflow Temperature (Cel) | 260 |
| RAM (bytes) | 147456 |
| ROM (words) | 131072 |
| ROM Programmability | FLASH |
| Speed | 64MHz |
| Supply Current-Max | 9.9mA |
| Supply Voltage-Max | 3.6V |
| Supply Voltage-Min | 1.7V |
| Supply Voltage-Nom | 3V |
| Surface Mount | YES |
| Technology | CMOS |
| Temperature Grade | AUTOMOTIVE |
| Terminal Finish | Tin (Sn) - immersion |
| Terminal Form | GULL WING |
| Terminal Pitch | 0.8mm |
| Terminal Position | QUAD |
| Time@Peak Reflow Temperature-Max (s) | NOT SPECIFIED |
| uPs/uCs/Peripheral ICs Type | MICROCONTROLLER, RISC |
| Package | Quad Flat Packages |
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
| Moisture Sensitivity Level | MSL 3 |
| ECCN | 3A991.A.2 |
| HTS Code | 8542.31.00.25 |
| Country of Origin | Mainland China, Philippines, Taiwan |
Alternate & Equivalent Parts
Compatible alternatives and drop-in replacements for STM32G0B1KBT3:
RISC Microcontroller, 32-Bit, FLASH, Cortex-M0+ CPU, 64MHz, CMOS, PQFP32
RISC Microcontroller, 32-Bit, FLASH, CORTEX-M0 CPU, 64MHz, CMOS, PQFP32
RISC Microcontroller, 32-Bit, FLASH, Cortex-M0+ CPU, 64MHz, CMOS, PQFP32
RISC Microcontroller, 32-Bit, FLASH, CORTEX-M0 CPU, 64MHz, CMOS, PQFP32
RISC Microcontroller, 32-Bit, FLASH, CORTEX-M0 CPU, 64MHz, CMOS, PQFP32
RISC Microcontroller, 32-Bit, FLASH, Cortex-M0+ CPU, 64MHz, CMOS, PQFP32
Frequently Asked Questions
How many USART interfaces does STM32G0B1KBT3 provide, and which multi-device serial communication scenario benefits most?
The STM32G0B1KBT3 integrates 6 USART interfaces, enabling simultaneous RS-232, RS-485, LIN, and Modbus connections to up to 6 separate field devices from a single MCU. This is particularly valuable in building automation gateways where the controller must bridge Modbus sensors, a GSM modem, a BLE module, and an HMI display simultaneously at 48 MHz without external UART expanders.
How does the 144KB RAM of STM32G0B1KBT3 compare to typical Cortex-M0+ devices and what does it enable?
At 144KB, the STM32G0B1KBT3 provides 4x to 8x more RAM than typical Cortex-M0+ devices in its class, which commonly offer 16KB to 36KB. This allows applications to buffer 1-second frames of audio at 16-bit 8 kHz, store full Modbus register maps for 10 slave devices, or run a lightweight RTOS with multiple tasks and communication stacks without external SRAM.
For a USB Type-C PD sink controller design, how do the integrated DAC and ADC of STM32G0B1KBT3 support the analog sensing and signaling requirements?
The integrated 2-channel ADC measures CC pin voltages for power delivery contract negotiation, while the internal DAC generates the 0V to 0.8V analog comparator reference for Rp resistor detection at sample rates up to 1 MSPS. This combination eliminates external analog comparator and reference ICs, reducing BOM cost by 3 to 5 components in a USB PD sink controller implementation.
Given the 12-week factory lead time of STM32G0B1KBT3, what procurement strategy minimizes production risk for a new product launch?
With a 12-week lead time, initial NPI orders should be placed at least 14 weeks before mass production start to allow 2 weeks for incoming inspection and pre-production testing. For anticipated monthly volumes above 2000 units, a rolling 16-week forecast with a 20% buffer stock held at the distributor prevents line stoppages during the typical ±2 week supply variability common for STM32G0 LQFP-packaged devices.
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| Qty. | Unit Price | Ext. Price |
|---|---|---|
| 100+ | $2.8200 | $282.00 |
| 250+ | $2.6800 | $670.00 |
| 500+ | $2.5900 | $1295.00 |
| 6000+ | $2.2989 | $13793.40 |
| 12000+ | $2.2870 | $27444.60 |
| 24000+ | $2.2752 | $54604.80 |
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