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STMicroelectronics ST72F63BE2M1
- Part No.:
- ST72F63BE2M1
- Manufacturer:
- STMicroelectronics
- Category:
- Microcontrollers
- Package:
- 24-SOIC (0.295", 7.50mm Width)
- Datasheet:
-
ST72F63BE2M1.pdf
- Description:
- IC MCU 8BIT 8KB FLASH 24SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:2,934
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Product details
Overview
ST72F63BE2M1 from STMicroelectronics is an 8-bit low-speed USB microcontroller featuring 16 KB Flash program memory, 512 bytes RAM, integrated USB 1.5 Mbps transceiver with DFU support, 8-bit ADC (12-channel), dual timers (including programmable watchdog and 16-bit timer with PWM), and I²C/SCI interfaces. It operates at up to 24 MHz and targets embedded USB peripheral control in industrial sensors and HID devices.
For engineers reviewing the ST72F63BE2M1 datasheet, ST72F63BE2M1 pinout, ST72F63BE2M1 application, or ST72F63BE2M1 equivalent, key selection criteria include USB DFU capability, 16 KB Flash density with IAP/ICP, 12-channel 8-bit ADC resolution, 24 MHz clock tolerance, and QFN40 package thermal performance for space-constrained designs.
Technical Context
This MCU implements the ST7 core architecture with 63 basic instructions and 17 addressing modes, supporting true bit manipulation and 8×8 unsigned multiply. Its USB interface integrates a 3.3 V regulator and transceivers compliant with USB 2.0 low-speed (1.5 Mbps) and HID 1.0 specifications.
The 16-bit timer provides two input capture and two output compare channels, plus PWM generation and external clock input. The 8-bit ADC supports up to 12 channels with configurable sampling, while the I²C interface operates up to 400 kHz in multimaster mode.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core Architecture | ST7 8-bit CISC CPU with 63 instructions and 17 addressing modes |
| Flash Memory | 16 KB HDFlash with Readout Protection and In-Application Programming (IAP) |
| RAM | 512 bytes + 128-byte hardware stack for real-time interrupt handling |
| USB Interface | Low-speed (1.5 Mbps) compliant with USB 2.0 and HID 1.0; includes integrated 3.3 V regulator and transceivers |
| ADC | 8-bit successive approximation ADC with 12 input channels and programmable sampling |
| Timers | Programmable watchdog timer + 16-bit timer with 2 capture/2 compare channels and PWM output |
| I²C Speed | Up to 400 kHz multimaster operation for sensor bus integration |
Pinout & Package
ST72F63BE2M1 is housed in a 40-pin QFN package (6 × 6 mm, 0.5 mm pitch) with exposed thermal pad, optimized for compact PCB layouts and thermal dissipation in sealed enclosures.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDD / VSS | Power supply / Ground | Dual power domains: VDD (core/digital), VDDA/VSSA (analog section isolation) |
| OSCIN / OSCOUT | Crystal oscillator interface | Supports 12 or 24 MHz external crystal; internal oscillator not present |
| USB_DP / USB_DM | USB differential data lines | Direct connection to USB connector; no external termination required |
| PA0–PA7 | Port A I/O | Up to 8 high-sink (10 mA @ 1.3 V) or 2 very high-sink open-drain (25 mA @ 1.5 V) pins |
| RESET | Bidirectional reset pin | Active-low input; outputs reset pulse during power-on or watchdog timeout |
Key Features
| Feature | Design Value |
|---|---|
| In-Application Programming (IAP) | Enables field firmware updates without external programmer via UART or USB |
| USB Device Firmware Upgrade (DFU) | Standardized USB class support allows host-initiated firmware reprogramming over USB |
| Low-voltage detector (LVD) | Configurable threshold (2.5 V or 2.8 V) triggers reset or interrupt before brownout |
| Power-saving modes | Four modes (Run/Wait/Slow/Halt) with RAM retention; Halt draws <1 µA at 3.3 V |
| Interrupt-capable I/O | Up to 8 individually programmable interrupt inputs across ports A–D |
Applications
| Industrial Sensor Node | HID Keyboard Controller |
|---|---|
Use Scenario: Compact environmental sensor node with temperature/humidity sensing and USB reporting. IC Role / Device Role / Timing Role: Central controller managing ADC sampling, USB HID report generation, and low-power wake-on-event. Use Value: Integrated USB transceiver and DFU eliminate external PHY; 12-channel ADC supports multi-sensor analog front-end without external mux. |
Use Scenario: Low-cost mechanical keyboard with per-key LED feedback and firmware-upgradable layout mapping. IC Role / Device Role / Timing Role: USB HID device controller handling matrix scanning, debouncing, and report packetization at 125 Hz polling rate. Use Value: On-chip 24 MHz timing enables precise USB frame alignment; high-sink I/O drives LEDs directly without current-limiting resistors. |
| USB Diagnostic Tool | Smart Power Outlet |
Use Scenario: Field-service tool for reading CAN/J1939 diagnostics via USB-to-serial bridge and local display. IC Role / Device Role / Timing Role: Protocol translator between SCI (RS-232/485) and USB HID/Custom Class endpoints. Use Value: Dual communication interfaces (SCI + I²C) allow simultaneous host USB link and sensor/actuator bus control. |
Use Scenario: Energy-monitoring smart outlet with current/voltage sensing, relay control, and USB configuration port. IC Role / Device Role / Timing Role: System manager coordinating 8-bit ADC measurements, zero-crossing detection, and USB parameter updates. Use Value: Very high-sink open-drain I/Os (25 mA @ 1.5 V) directly drive optocouplers for AC relay isolation without external drivers. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar 8-bit USB microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| ST72F63BK2 | Same ST7 core, 8 KB Flash, SO24 package (24-pin narrow SOIC) | Limited I/O count (16 pins) and no USB transceiver; requires external PHY | Select when board space permits SOIC and USB speed is non-critical |
| STM8S105K4T6C | STM8 core, 16 KB Flash, QFN32, USB 2.0 full-speed (12 Mbps), no built-in regulator | Higher USB bandwidth but requires external 3.3 V LDO and level-shifting for VBUS detection | Choose for faster USB throughput where host-side driver support exists |
Compared with ST72F63BE2M1, ST72F63BK2 sacrifices USB integration and I/O count for legacy PCB compatibility, while STM8S105K4T6C trades integrated regulation and low-speed simplicity for higher bandwidth and modern toolchain support - neither offers identical DFU+regulator+QFN40 integration.
Availability
ST72F63BE2M1 is available at Aetrix Electronics and suitable for industrial sensor nodes, HID keyboard controllers, USB diagnostic tools, and smart power outlets requiring stable component supply across extended product lifecycles.
Supply support for ST72F63BE2M1 includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.
Manufacturer
STMicroelectronics is a global semiconductor leader headquartered in Geneva, Switzerland, specializing in microcontrollers, power management, and automotive ICs with vertical manufacturing capabilities.
The ST7 family was designed for cost-sensitive, ultra-low-power embedded control applications requiring integrated peripherals and robust field-programmability - particularly in USB-connected industrial and consumer peripherals.
FAQ
Does ST72F63BE2M1 support USB suspend/resume operations?
Yes. The device fully supports USB suspend and resume per USB 2.0 specification: it enters low-power mode upon host suspend request and wakes on bus activity or internal event, retaining RAM content. Resume timing meets USB 2.0 requirements for low-speed devices (≤ 3 ms).
What is the maximum operating frequency of the ST72F63BE2M1 core?
The ST72F63BE2M1 core runs at up to 24 MHz using an external crystal oscillator on OSCIN/OSCOUT. Internal RC oscillators are not supported; system clock stability depends on external 12 or 24 MHz crystal per datasheet Table 8 recommendations.
Can the 8-bit ADC perform conversions during Halt mode?
No. The ADC requires active CPU clock and peripheral clock domain operation. During Halt mode, all clocks except the low-frequency LSI (if enabled) are stopped; ADC conversion must occur in Run, Wait, or Slow mode per Section 8.2 and 11.6.4 of the datasheet.
Is the QFN40 package RoHS-compliant and lead-free?
Yes. ST72F63BE2M1 in QFN40 (6 × 6 mm) packaging meets RoHS Directive 2011/65/EU and is manufactured with lead-free terminations and halogen-free molding compound, as confirmed in ST's official device ordering information (Section 15.2, Doc ID 7516 Rev 8).
ST72F63BE2M1 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- STMicroelectronics
- Package/Case:
- 24-SOIC (0.295", 7.50mm Width)
- Series:
- ST7
- Packaging:
- Tube
- Product Status:
- Obsolete
- Programmable:
- Not Verified
- Core Processor:
- ST7
- Core Size:
- 8-Bit
- Speed:
- 8MHz
- Connectivity:
- I2C, SCI, USB
- Peripherals:
- DMA, LVD, POR, PWM, WDT
- Number of I/O:
- 14
- Program Memory Size:
- 8KB (8K x 8)
- Program Memory Type:
- FLASH
- EEPROM Size:
- -
- RAM Size:
- 1K x 8
- Voltage - Supply (Vcc/Vdd):
- 4V ~ 5.5V
- Data Converters:
- -
- Oscillator Type:
- Internal
- Operating Temperature:
- 0°C ~ 70°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
ST72F63BE2M1 FAQ
1.How can I place an order for ST72F63BE2M1 through Aetrix?
Please submit a Request for Quotation (RFQ) for ST72F63BE2M1 on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.
2.Are the price and stock information for ST72F63BE2M1 reliable?
The price and inventory of ST72F63BE2M1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for ST72F63BE2M1 is usually 5 days.
3.What payment methods are accepted for ST72F63BE2M1?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for ST72F63BE2M1 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for ST72F63BE2M1?
ST72F63BE2M1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your ST72F63BE2M1 order is processed, you will receive an email with the shipment details and tracking number.
Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.
5.How can I obtain technical support or documentation for ST72F63BE2M1?
For technical support, including ST72F63BE2M1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ST72F63BE2M1 requirements.
6.How does Aetrix verify that ST72F63BE2M1 is sourced from the original manufacturer or authorized distributors?
All ST72F63BE2M1 products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that ST72F63BE2M1 meets industry standards.
7.What is the process for return or replacement of ST72F63BE2M1?
All ST72F63BE2M1 units undergo pre-shipment inspection (PSI). If there is an issue with ST72F63BE2M1, returns or replacements are accepted under the following conditions:
1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.
2.The issue is reported within 90 days of delivery.
3.The ST72F63BE2M1 part is unused and in its original packaging.
Return procedure for ST72F63BE2M1:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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