STM32G051C8T6 - 64MHz Cortex-M0+ 64KB MCU | STMicroelectronics
MPN: STM32G051C8T6 ✓ ActiveSTM32G051C8T6 Overview
A microcontroller is a programmable semiconductor that integrates a processor core, memory, and peripherals into one package. The STM32G0 family belongs to the Arm Cortex-M embedded hierarchy, where the Cortex-M0+ core provides compact, energy-efficient real-time execution. The STM32G051C8T6 can therefore serve as the central controller in a cost-sensitive embedded product rather than requiring a separate processor, memory, and interface components.
Verified product information identifies a 32-bit Arm Cortex-M0+ core, a maximum operating frequency of 64 MHz, and 64 KB of Flash memory. Distributor records also identify 18 KB of RAM and two USART instances. The 48-LQFP 7 x 7 mm package provides a conventional leaded surface-mount format that is convenient for assembly and inspection. Arrow also lists the device for 2.5 V or 3.3 V operation.
The STM32G051x6/x8 device family is designed for mainstream embedded control, balancing a 64 MHz maximum clock with integrated memory and communication peripherals. Its Arm Cortex-M0+ architecture supports efficient real-time control without the power and cost of a higher-performance Cortex-M core. Two USARTs allow connections to sensors, human-interface modules, external transceivers, or service interfaces while reducing the need for separate serial-interface controllers.
Typical applications include compact industrial controllers, compact motor-control modules, building automation endpoints, small sensor-hub boards, communication equipment, and consumer accessory controllers. In each case, the MCU consolidates control processing and peripheral management into one package while keeping the design centered on the widely supported STM32 embedded ecosystem.
When laying out a board, verify every exposed pad, pin function, supply requirement, decoupling value, and programming interface against the current STMicroelectronics datasheet. The 48-LQFP footprint should not be treated as interchangeable with 32-pin or 64-pin variants merely because all are LQFP packages; pin count, pin assignment, and electrical limits must match before substitution.
This product record consolidates verified manufacturer and distributor information, transparent data gaps, package details, purchasing context, and same-family drop-in candidates. It also distinguishes electrical and firmware compatibility from a mere shared package, helping engineers make a defensible selection rather than treating footprint similarity as proof of interchangeability.
Drop-in alternatives for STM32G051C8T6 — same package, pin-to-pin compatible. Different-package parts requiring PCB rework are excluded.
Variants in this series
Same-series models that are drop-in compatible with STM32G051C8T6 (same form factor and footprint) — differing in Package, SRAM, Timers, Core, Flash Memory.
STM32G030C8T6
✅ Drop-In ⚠️ Specs UnverifiedContact for price
View Datasheet →STM32G050C8T6
✅ Drop-In ⚠️ Specs UnverifiedContact for price
View Datasheet →STM32G060C8T6
✅ Drop-In ⚠️ Specs Unverified📋 Reference alternative (not in catalog)
STM32G061C8T6
✅ Drop-In ⚠️ Specs UnverifiedContact for price
View Datasheet →STM32G071C8T6
✅ Drop-In ⚠️ Specs UnverifiedContact for price
View Datasheet →STM32G051C8T6 Maximum Ratings & Electrical Characteristics
| Product Type | 32-bit ARM Cortex-M0+ microcontroller |
| Maximum CPU Frequency | 64 MHz |
| CPU Architecture | Arm Cortex-M0+ |
| Instruction Width | 32-bit |
| Flash Memory | 64 KB (64K x 8) |
| RAM Memory | 18 KB |
| USART Count | 2 |
| Operating Supply Voltage | 2.5 V or 3.3 V |
| Package | 48-pin LQFP (7 x 7 mm) |
| Mounting Type | Surface Mount |
| Shipping Format | Tray |
| Core Variant | STM32G051x6/x8 mainstream series |
STM32G051C8T6 48-pin lqfp (7 x 7 mm) Pin Configuration Guide
Pin configuration for STM32G051C8T6 (48-pin lqfp (7 x 7 mm) package). This digital IC includes GPIO, communication interfaces (UART, SPI, I2C), and power pins. Refer to the manufacturer datasheet for alternate pin functions and configuration options. Essential for embedded system design and PCB layout.
No detailed pinout data available for STM32G051C8T6.
Refer to the datasheet for full pin configuration.
Typical Applications
STM32G051C8T6 is suitable for 6 applications: Compact Industrial Control Module, Building Automation Endpoint, Small Motor-Control Module, Sensor Hub and IoT Node, Serial Communication Equipment, Consumer Accessory Controller.
Compact Industrial Control Module
The STM32G051C8T6 fits compact industrial control modules because its 64 MHz Arm Cortex-M0+ core provides responsive real-time execution while 64 KB of Flash and 18 KB of RAM cover moderate control logic, configuration, and working state. Two USARTs can support a local operator interface and an external sensor or service connection. The 48-LQFP 7 x 7 mm package simplifies conventional surface-mount assembly. Before deployment, verify the operating-temperature grade, watchdog configuration, isolation requirements, and transient immunity against the complete STMicroelectronics datasheet.
Recommended
Building Automation Endpoint
The STM32G051C8T6 is appropriate for building-automation endpoints that monitor switches, sensors, or actuators and communicate over a serial network. Its 64 MHz Cortex-M0+ processing core can service protocol tasks and control logic, while the 18 KB of RAM provides useful working space for packet handling and state management. The two USARTs allow separate use for field communication and diagnostics. The 48-LQFP footprint supports compact controller boards, although final qualification should confirm temperature limits, ESD strategy, and long-life availability.
Recommended
Small Motor-Control Module
The STM32G051C8T6 can serve as the control processor in a small motor-control module that performs timing, sequence management, and sensor supervision. Its 64 MHz Arm Cortex-M0+ core provides sufficient instruction throughput for many compact control loops, while 64 KB of Flash accommodates application firmware and 18 KB of RAM supports control variables and buffers. Two USARTs permit a host or tuning interface alongside an external communication link. The motor drive stage must be designed independently with suitable current protection, thermal control, and analog isolation.
Recommended
Sensor Hub and IoT Node
The STM32G051C8T6 is suitable for a compact sensor hub or IoT node that collects readings, performs local filtering, and reports data through a serial link. The 64 MHz Cortex-M0+ core handles time-sensitive acquisition and protocol processing, while 18 KB of RAM can accommodate buffers and application state. Two USARTs allow separate connections to sensors and an upstream communications module. Designers should verify the complete ADC, timer, and I/O specifications, which are not present in the supplied records, before finalizing analog and timing requirements.
Recommended
Serial Communication Equipment
The STM32G051C8T6 can support communication equipment that requires protocol handling alongside local control. Its two USARTs provide two independent serial channels, and the 64 MHz Arm Cortex-M0+ core can process framing, commands, and diagnostics at useful real-time performance. The 64 KB of Flash provides space for embedded communications firmware, while 18 KB of RAM supports transient packet and buffer management. In professional equipment, add the appropriate physical-layer transceivers and verify electrical isolation, surge protection, and protocol-specific timing requirements.
Recommended
Consumer Accessory Controller
The STM32G051C8T6 is well matched to a compact consumer accessory that performs local logic, user-interface handling, and serial communication. Its 64 MHz Cortex-M0+ core and 64 KB of Flash accommodate moderate embedded features without an external processor, while 18 KB of RAM supports state and buffering. The 48-LQFP 7 x 7 mm package can reduce board area relative to larger leaded packages. Designers should validate standby behavior, available I/O, accessory power switching, and human-interface timing because those details are not specified in the supplied product snippets.
Recommended
Recommended Products Summary
Engineering reference data for STM32G051C8T6 — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | STM32G030C8T6 | STM32G050C8T6 | STM32G060C8T6 | STM32G061C8T6 | STM32G071C8T6 |
|---|---|---|---|---|---|---|
| Brand | STMicroelectronics | STMicroelectronics | STMicroelectronics | STMicroelectronics | STMicroelectronics | STMicroelectronics |
| Package | 48-LQFP (7x7) | 48-LQFP (7x7) - same | 48-LQFP (7x7) - same | 48-LQFP (7x7) - same | 48-LQFP (7x7) - same | 48-LQFP (7x7) - same |
| CPU Core | Arm Cortex-M0+ | Arm Cortex-M0+ | Arm Cortex-M0+ | Arm Cortex-M0+ | Arm Cortex-M0+ | Arm Cortex-M0+ |
| Maximum CPU Frequency | 64 MHz | 64 MHz | 64 MHz | 64 MHz | 64 MHz | 64 MHz |
Key Differentiators
- Verified memory configuration (vs STM32G030C8T6)
- Two integrated USARTs (vs STM32G060C8T6)
- 64 MHz Arm Cortex-M0+ performance class (vs STM32G071C8T6)
- Compact 48-LQFP footprint (vs STM32G051K8T6)
Design Notes
Route the STM32G051C8T6 supply pins directly to a quiet ground plane and place the manufacturer-recommended decoupling capacitors close to the corresponding pins. Keep the 48-LQFP footprint aligned with the official land pattern, confirm pin 1 orientation, and provide unobstructed access to the SWD programming and reset connections. Do not infer terminal functions from the 48-pin count; cross-check every connection against the current STMicroelectronics datasheet before releasing the PCB.
The two USARTs make clock and grounding discipline important once communication lines leave the MCU. Keep serial traces short where possible, provide a continuous ground reference, and place any protection or transceiver close to the board connector. Use the datasheet's pin and peripheral routing requirements when assigning alternate-function signals. If a high-speed or noisy external bus is added, verify its timing and I/O levels rather than assuming that every adjacent STM32G0 pin can carry the same load.
A shared 48-LQFP package does not establish drop-in compatibility. Before replacing the STM32G051C8T6, compare pin names and alternate functions, supply pins, maximum I/O levels, Flash and RAM capacity, clock-tree requirements, ADC and timer resources, bootloader behavior, and peripheral availability. Also check whether the existing firmware uses registers or interrupts that differ between STM32G0 variants. A successful PCB fit without this review can create nonfunctional inputs, boot failures, or subtle timing changes.
Use the verified 2.5 V or 3.3 V operating class as the starting point, but determine the precise power architecture from the current manufacturer documentation. Account for every rail, regulator tolerance, sequencing requirement, and I/O domain. The 64 MHz Cortex-M0+ core's switching activity can create dynamic supply noise even though the part is a microcontroller rather than a power converter. Validate startup, brownout behavior, and load-current margins across voltage and temperature extremes.
Compliance Information
The supplied manufacturer and distributor snippets do not provide explicit RoHS, REACH, AEC-Q100, lead-free, halogen-free, or conflict-minerals declarations. No compliance status has been inferred.