STM32F373RBT7 - 72MHz Cortex-M4 128KB MCU | STMicroelectronics
MPN: STM32F373RBT7 ✓ Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $2.5486 | $2.55 |
| 10 | $2.5486 | $25.49 |
| 100 | $2.5486 | $254.86 |
| 500 | $2.5486 | $1,274.30 |
| 1,000 | $2.5486 | $2,548.60 |
STM32F373RBT7 Overview
A microcontroller is a programmable semiconductor device that executes firmware, coordinates digital logic, and interfaces with sensors, actuators, communications links, and human-machine interfaces. The STM32F3 series specifically targets performance-oriented embedded control with a Cortex-M4 processor and mixed-signal peripherals. STM32F373RBT7 combines that general-purpose processing role with 16-bit sigma-delta ADCs, making it suitable for measurements where sensor resolution and signal conditioning matter alongside control-loop performance.
The verified distributor listing identifies a 32-bit ARM Cortex-M4 processor operating up to 72 MHz, with 128 KB (128K x 8) Flash and a 64-LQFP package. The Mouser result additionally identifies DSP and FPU capability. These features support floating-point and digital signal-processing workloads while retaining a conventional embedded-control architecture. The Cortex-M4 core and integrated peripherals can reduce external component count in applications that need control, measurement, and communication in one device.
Typical signal-chain implementations place analog sensors near the sigma-delta ADC inputs and use the MCU for filtering, calibration, control decisions, and data transfer. The part is appropriate for industrial sensor acquisition, motor and power-system monitoring, building automation, instrumentation, and connected embedded equipment. The exact ADC resolution, input count, voltage limits, timer resources, communication peripherals, and operating-temperature limits were not included in the supplied verified data and are therefore not asserted here.
A key design consideration is package and firmware planning. The 64-LQFP footprint has 64 leads, so the physical layout must match the selected package drawing and the complete STM32F373 pin assignment. Before committing to a replacement, verify the exact package, pin functions, peripheral mapping, memory configuration, clock tree, voltage requirements, and software support against the manufacturer datasheet. Do not treat a merely similar STM32 or Cortex-M4 device as electrically and firmware-compatible without that review.
This page consolidates the verified distributor identity, package, processor, memory, and application positioning of STM32F373RBT7 with sourcing context and design guidance. It is intended as an engineering starting point, not as a substitute for the official STMicroelectronics datasheet, reference manual, errata, or package drawing.
Drop-in alternatives for STM32F373RBT7 — 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 STM32F373RBT7 (same form factor and footprint) — differing in Package, Pin Count.
Quick Comparison Tool — Select alternative parts for side-by-side comparison:
STM32F373RCT7
✅ Drop-In ⚠️ Specs Unverified📋 Reference alternative (not in catalog)
STM32F373RBT6
✅ Drop-In ⚠️ Specs Unverified✓ In Stock
$6.14 / Unit
View Datasheet →STM32F373RBT8
✅ Drop-In ⚠️ Specs Unverified📋 Reference alternative (not in catalog)
STM32F373RBT7 Maximum Ratings & Electrical Characteristics
| Product Type | 32-bit ARM Cortex-M4 mixed-signal microcontroller |
| Processor Core | ARM Cortex-M4 |
| Maximum Clock Frequency | 72 MHz |
| Flash Memory | 128 KB (128K x 8) |
| Architecture | 32-bit |
| Digital Signal Processing | DSP capability |
| Floating-Point Unit | FPU capability |
| ADC Architecture | 16-bit sigma-delta ADC |
| Nominal Supply | 3.3 V |
| Package | 64-LQFP |
| Package Dimensions | 10 x 10 mm |
| Pin Count | 64 pins |
| Mounting Type | Surface mount |
| Application Category | Sensor applications requiring high-precision measurement |
STM32F373RBT7 10 x 10 mm Pin Configuration Guide
Pin configuration for STM32F373RBT7 (10 x 10 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 STM32F373RBT7.
Refer to the datasheet for full pin configuration.
Typical Applications
STM32F373RBT7 is suitable for 6 applications: Precision Industrial Sensor Acquisition, Industrial Motor and Power Monitoring, Building Automation and Environmental Control, Data Acquisition and Instrumentation, Connected Sensor Hubs, Digital Signal Processing and Control.
Precision Industrial Sensor Acquisition
STM32F373RBT7 fits precision sensor acquisition because the STM32F373 family integrates 16-bit sigma-delta ADCs while the Cortex-M4 core handles acquisition sequencing and control logic. The verified 128 KB of Flash supports embedded firmware for calibration, filtering, diagnostics, and data processing. Place the sensor interface close to the analog inputs and follow the official datasheet for input limits, reference requirements, grounding, and filtering. The 72 MHz core provides headroom for time-critical measurements without requiring a separate processor when the application does not require extensive connectivity.
Recommended
Industrial Motor and Power Monitoring
STM32F373RBT7 can be used as the control and measurement MCU in a motor-monitoring or power-system module. The Cortex-M4 processor operates up to 72 MHz, while the family’s sigma-delta ADCs suit high-precision measurement functions described by STMicroelectronics. The same device can supervise thresholds, record events, manage digital interlocks, and communicate status to a higher-level controller. Verify the required timer outputs, analog input ranges, isolation strategy, and thermal conditions against the manufacturer documentation before connecting power-stage signals.
Recommended
Building Automation and Environmental Control
The STM32F373RBT7 is suitable for a building-control node that must read environmental sensors, apply control logic, and manage local outputs. Its 128 KB Flash accommodates embedded firmware, while the Cortex-M4 core can execute filtering, hysteresis, scheduling, and fault handling. The 64-LQFP package is useful when a product requires a moderate pin count and conventional surface-mount assembly. A practical design should isolate sensitive analog routing, provide local decoupling, and define fail-safe behavior for actuator outputs and communications loss.
Recommended
Data Acquisition and Instrumentation
STM32F373RBT7 fits compact data-acquisition equipment where multiple measurements must be converted, processed, and exported in one embedded module. The verified Cortex-M4 core reaches 72 MHz, and the family’s 16-bit sigma-delta ADC architecture is intended for high-precision measurement. DSP and FPU capability can support filtering and calibration algorithms while reducing external processing overhead. Designers should confirm ADC input multiplexing, acquisition time, reference-voltage behavior, oversampling support, and the required communication interface in the official STM32F373 documentation.
Recommended
Connected Sensor Hubs
STM32F373RBT7 can act as the local controller in a connected sensor hub that combines measurement, filtering, event detection, and network management. The Cortex-M4 core provides real-time execution at up to 72 MHz, while 128 KB of Flash provides room for application firmware and protocol handlers. The verified family positioning supports high-precision sensor measurement, making the MCU useful in gateways where low-latency local processing matters. Validate the selected communications peripheral, pin multiplexing, antenna/RF isolation, and power budget before layout release.
Recommended
Digital Signal Processing and Control
STM32F373RBT7 is suitable for embedded DSP-assisted control because the verified listing identifies DSP and FPU capability in addition to its 72 MHz Cortex-M4 core. It can execute filtering, transforms, control loops, and signal conditioning locally instead of offloading every operation to a host processor. The 128 KB Flash configuration should be checked against the selected firmware image, while the complete RAM and peripheral map must be confirmed from the official documentation. Use deterministic interrupt and timer design, and benchmark the real workload rather than relying only on clock frequency.
Recommended
Recommended Products Summary
Engineering reference data for STM32F373RBT7 — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | STM32F373RCT7 | STM32F373RBT6 | STM32F373RBT8 |
|---|---|---|---|---|
| Package | 64-LQFP, 10 x 10 mm | 64-LQFP, package dimensions require verification | 64-LQFP, package dimensions require verification | 64-LQFP, package dimensions require verification |
| Brand | STMicroelectronics | STMicroelectronics | STMicroelectronics | STMicroelectronics |
| Core | ARM Cortex-M4 | ARM Cortex-M4 family compatibility requires verification | ARM Cortex-M4 family compatibility requires verification | ARM Cortex-M4 family compatibility requires verification |
| ADC Architecture | 16-bit sigma-delta ADC family feature | STM32F373 family feature requires verification | STM32F373 family feature requires verification | STM32F373 family feature requires verification |
Key Differentiators
- Mixed-signal ADC integration (vs STM32F373RCT7)
- Cortex-M4 processing capability (vs STM32F373RBT6)
- Verified compact package (vs STM32F373RCT6)
Design Notes
Start the PCB layout by placing the STM32F373RBT7 in the verified 64-LQFP, 10 x 10 mm footprint and cross-checking every land against the official package drawing. Keep analog sensor traces away from switching nodes, high-current return paths, and digital clock lines. Route ground and supply connections to follow the manufacturer recommendations, and place required decoupling capacitors close to the relevant power pins. Because the supplied data does not contain the complete pin table or recommended layout, do not finalize routing from generic LQFP conventions.
The supplied listings identify STM32F373RBT7 as a 3.3 V part, but they do not state the complete voltage range, current budget, regulator architecture, or analog-supply requirements. Before power-up, verify each supply domain, I/O threshold, ground reference, and external regulator tolerance in the official datasheet. Estimated: board-level power dissipation must be calculated from the actual rail voltage difference and measured or datasheet current; the required input values are not present in the supplied data, so no numeric thermal result is asserted here.
For sensor signals feeding the STM32F373 family’s sigma-delta ADC resources, use short analog routes, controlled return paths, and filtering selected from the signal bandwidth and sensor impedance. Keep the analog ground and digital return strategy consistent with the manufacturer guidance, and avoid routing high-speed digital or switching signals beneath sensitive analog nodes. The verified data does not provide ADC input impedance, acquisition time, reference requirements, or recommended external filter values, so those values must be obtained before final component selection.
Do not substitute STM32F373RCT7, STM32F373CBT7, or another STM32 family member based only on the Cortex-M4 label. The verified target is STM32F373RBT7 in a 64-LQFP package, while one comparison snippet describes STM32F373RCT6 with a different 52-pin package description. Verify exact ordering code, package, pinout, Flash and RAM, voltage, ADC resources, clock tree, peripheral mapping, temperature grade, and software support before approving a drop-in replacement.
Compliance Information
Compliance fields are unknown because the supplied verified web data does not state RoHS, REACH, AEC-Q100, lead-free, halogen-free, or conflict-minerals status. Confirm current declarations with STMicroelectronics or the authorized distributor.
