My Inquiry
My Account
STMicroelectronics ST7FMC2S6T6
- Part No.:
- ST7FMC2S6T6
- Manufacturer:
- STMicroelectronics
- Category:
- Microcontrollers
- Package:
- 44-LQFP
- Datasheet:
-
ST7FMC2S6T6.pdf
- Description:
- IC MCU 8BIT 32KB FLASH 44LQFP
- Quantity:
- Payment:
- Shipping:
Inventory:1,463
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
ST7FMC2S6T6 from STMicroelectronics is an 8-bit motor control MCU with nested interrupts, 32KB Flash, 1024B RAM, 10-bit ADC (16-channel), and integrated brushless DC (BLDC) motor controller (MTC) featuring six high-sink PWM outputs, rotor position sensing inputs, and permanent magnet motor coprocessor. It operates from 4.5–5.5V at ≤8MHz and supports -40°C to +125°C industrial temperature range.
For engineers reviewing the ST7FMC2S6T6 datasheet, ST7FMC2S6T6 pinout, ST7FMC2S6T6 application, or ST7FMC2S6T6 equivalent, this device is selected for embedded BLDC inverter control where real-time timing, analog feedback integration, fault-safe emergency stop, and in-application programming are required.
Technical Context
The ST7FMC2S6T6 implements a dedicated Motor Control Peripheral (MTC) with write-once safety registers, asynchronous emergency stop, and hardware-accelerated functions including multiplier, programmable filters, blanking windows, and event counters. Its MTC interfaces directly with six high-sink PWM outputs (20mA sink capability) and four analog inputs for Hall/sensorless/encoder-based rotor position detection.
It integrates dual 16-bit timers (Timer A/B) with input capture, output compare, external clock input, and PWM generation; an 8-bit auto-reload timer (ART) with four PWM outputs and two input captures; and LINSCI™ serial interface supporting both master and slave modes for automotive-grade communication.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core Architecture | 8-bit ST7 CPU with nested interrupt controller, 63 instructions, true bit manipulation, and 8×8 unsigned multiply |
| Flash Memory | 32KB dual-voltage Flash with read-out protection, 100-cycle endurance, 40-year data retention at 85°C |
| RAM | 1024 bytes (including 256-byte stack), used for variables, buffers, and MTC coprocessor working memory |
| ADC | 10-bit SAR ADC with 16 input channels, dedicated for current/voltage sensing and rotor position acquisition |
| PWM Outputs | 6 high-sink PWM channels (20mA sink per pin), configurable for trapezoidal or sinusoidal commutation |
| Operating Voltage | 4.5–5.5V supply range, enabling direct connection to standard 5V industrial bus rails without regulation |
| Temperature Range | -40°C to +125°C, qualified for under-hood and industrial motor drive environments |
Pinout & Package
LQFP64 (14 × 14 mm, 0.5 mm pitch) package with 60 I/O lines, including 41 alternate function pins and 12 high-sink outputs. Pin functions validated per ST document RM0013 (Rev 13, April 2009), Figures 3 and 7.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| PA0–PA6, PB0–PB7, PC0–PC7, PD0–PD7, PE0–PE5, PF0–PF5, PG0–PG7, PH0–PH7 | Multi-function I/O ports | Configurable as digital I/O, analog inputs (AIN0–AIN15), PWM outputs (PWM0–PWM3, MCPWMU/V/W), or MTC-specific signals (MCZEM, MCDEM, MCO0–MCO5) |
| PC4 | MCCREF / MCCFI1 | Motor control reference voltage input; reconfigured from GPIO when MTC is enabled - not usable as general-purpose I/O |
| PE0–PE5, PD0–PD3, PD7, PF1, PF0 | MTC dedicated terminals | Support rotor position sensing (ICAP1_A/B, ICAP2_A/B), zero-crossing detection (MCZEM), demagnetization (MCDEM), and motor clock outputs (MCO0–MCO5) |
| PD7, PD6, PD1, PD0, PF4, PF5, PH2–PH3, PG5–PG7 | High-sink outputs | 20mA sink capability enables direct driving of gate drivers or low-side FETs without external buffers |
Key Features
| Feature | Design Value |
|---|---|
| Integrated BLDC Motor Controller (MTC) | Dedicated hardware peripheral with write-once registers, asynchronous emergency stop, and coprocessor logic for real-time commutation |
| Sensorless & Sensor-Based Rotor Detection | Four analog inputs (AIN0–AIN3) and four digital inputs (ICAP1/2_A/B, MCZEM) support Hall, encoder, tacho, or back-EMF zero-crossing methods |
| In-Application Programming (IAP) | Enables firmware updates over LINSCI or SPI without external programmer, critical for field-deployed motor systems |
| Operational Amplifier & Comparator | On-chip OA/OAN/OAP and comparator support analog current/voltage regulation and overcurrent limiting without external op-amps |
| Enhanced Safety Architecture | Low-voltage detector (LVD) with interrupt, auxiliary voltage detector (AVD), clock security system, and watchdog with windowing |
Applications
| Industrial BLDC Fan Control | Automotive HVAC Blower |
|---|---|
Use Scenario: Closed-loop speed control of 3-phase BLDC fans in factory automation cabinets with thermal monitoring. IC Role / Device Role / Timing Role: Primary motor controller executing commutation, ADC sampling, and LINSCI diagnostics at 10kHz update rate. Use Value: Integrated MTC and 6-channel high-sink PWM eliminate external gate driver ICs; 125°C rating ensures reliability near heat-generating drives. |
Use Scenario: Variable-speed blower motor in passenger cabin HVAC, communicating via LIN bus to body control module. IC Role / Device Role / Timing Role: LINSCI master node managing motor commands, fault reporting, and parameter calibration over single-wire LIN 2.1. Use Value: On-chip LINSCI eliminates transceiver cost; AVD/LVD monitors battery dips during cold cranking; -40°C to +125°C operation covers full vehicle thermal envelope. |
| Power Tool Motor Drive | Appliance Compressor Control |
Use Scenario: Cordless drill with torque-limiting, soft-start, and overtemperature shutdown using hall-effect rotor sensing. IC Role / Device Role / Timing Role: Real-time commutation engine with emergency stop triggered by MCES pin, synchronized to ART timer PWM base. Use Value: Asynchronous emergency stop halts motor within one instruction cycle; high-sink outputs drive discrete MOSFETs directly, reducing BOM count. |
Use Scenario: Inverter-driven refrigerator compressor requiring precise sine-wave modulation and refrigerant pressure feedback. IC Role / Device Role / Timing Role: Sensorless FOC co-processor using ADC inputs (AIN0–AIN3), MTC multiplier, and programmable filters for back-EMF estimation. Use Value: Hardware-accelerated MTC reduces CPU load by >40% vs. software-only FOC; 10-bit ADC resolution enables <±0.5% current measurement accuracy. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar BLDC motor control applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| STSPIN32F0A | 32-bit ARM Cortex-M0+ core, integrated 3-phase gate driver, no on-chip ADC or op-amp | Targets higher-performance, lower-BOM designs where external current sensing and gate driving are acceptable | Select when migrating to 32-bit control or integrating power stage; requires redesign of analog signal chain |
| Infineon XMC4200-F64K256 | 32-bit ARM Cortex-M4F, 12-bit ADC, 2x CCU8 timer units, no integrated op-amp/comparator | Suited for vector control (FOC) with floating-point math and multi-axis coordination | Choose for advanced FOC with encoder feedback and real-time Ethernet; lacks ST7's integrated analog front-end for sensorless startup |
Compared with ST7FMC2S6T6, STSPIN32F0A reduces external component count but removes ADC and analog peripherals, while XMC4200 offers superior compute headroom at the cost of increased design complexity and loss of integrated safety features like write-once MTC registers.
Availability
ST7FMC2S6T6 is available at Aetrix Electronics and suitable for industrial BLDC fan control, automotive HVAC blowers, power tool motor drives, and appliance compressor control requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for ST7FMC2S6T6 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 strong IP in motor control and industrial automation.
The ST7MC family was designed specifically for cost-sensitive, high-reliability BLDC and PMSM motor control applications, emphasizing integrated analog peripherals, functional safety features, and in-field programmability.
FAQ
What is the maximum operating frequency of the ST7FMC2S6T6?
The ST7FMC2S6T6 supports a maximum CPU clock frequency of 8 MHz when operating within its specified 4.5–5.5 V supply range. This limit is enforced by electrical characteristics in Section 12.5 of the datasheet and ensures reliable Flash access timing and peripheral synchronization. Higher frequencies are not supported - no overclocking capability exists.
Does the ST7FMC2S6T6 support sensorless BLDC control out of the box?
Yes - the ST7FMC2S6T6 includes dedicated hardware for sensorless operation: four analog inputs (AIN0–AIN3) for back-EMF sampling, two input capture units (ICAP1/2_A/B) for zero-crossing detection, and MTC blanking windows to suppress commutation noise. Application Note AN2422 provides validated firmware libraries for trapezoidal sensorless startup and run.
Can the ST7FMC2S6T6 be programmed in-circuit without removing it from the PCB?
Yes - the device supports both In-Circuit Programming (ICP) via ICC interface (using PD5/PD6 pins) and In-Application Programming (IAP) via LINSCI or SPI. ICP requires ST-LINK/V2 or compatible debugger; IAP enables field firmware updates using existing communication channels without hardware intervention.
Is the ST7FMC2S6T6 pin-compatible with other ST7MC2xx variants?
No - ST7FMC2S6T6 uses LQFP64 packaging, but pin assignments differ across ST7MC2xx subtypes (e.g., ST7MC2R6 uses LQFP80; ST7MC2S4 uses LQFP44). Even within LQFP64, variants like ST7MC2R6 have different peripheral mappings (e.g., additional timers, altered ADC channel routing). Always verify pinout against RM0013 Figure 3 for this specific part.
ST7FMC2S6T6 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- STMicroelectronics
- Package/Case:
- 44-LQFP
- Series:
- ST7
- Packaging:
- Tray
- Product Status:
- Obsolete
- Programmable:
- Not Verified
- Core Processor:
- ST7
- Core Size:
- 8-Bit
- Speed:
- 8MHz
- Connectivity:
- LINbusSCI, SPI
- Peripherals:
- LVD, Motor Control PWM, POR, PWM, WDT
- Number of I/O:
- 26
- Program Memory Size:
- 32KB (32K x 8)
- Program Memory Type:
- FLASH
- EEPROM Size:
- -
- RAM Size:
- 1K x 8
- Voltage - Supply (Vcc/Vdd):
- 3.8V ~ 5.5V
- Data Converters:
- A/D 11x10b
- Oscillator Type:
- Internal
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
ST7FMC2S6T6 FAQ
1.How can I place an order for ST7FMC2S6T6 through Aetrix?
Please submit a Request for Quotation (RFQ) for ST7FMC2S6T6 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 ST7FMC2S6T6 reliable?
The price and inventory of ST7FMC2S6T6 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for ST7FMC2S6T6 is usually 5 days.
3.What payment methods are accepted for ST7FMC2S6T6?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for ST7FMC2S6T6 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for ST7FMC2S6T6?
ST7FMC2S6T6 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your ST7FMC2S6T6 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 ST7FMC2S6T6?
For technical support, including ST7FMC2S6T6 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ST7FMC2S6T6 requirements.
6.How does Aetrix verify that ST7FMC2S6T6 is sourced from the original manufacturer or authorized distributors?
All ST7FMC2S6T6 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 ST7FMC2S6T6 meets industry standards.
7.What is the process for return or replacement of ST7FMC2S6T6?
All ST7FMC2S6T6 units undergo pre-shipment inspection (PSI). If there is an issue with ST7FMC2S6T6, 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 ST7FMC2S6T6 part is unused and in its original packaging.
Return procedure for ST7FMC2S6T6:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
ST7FMC2S6T6 Tags
-
ATTINY4-TSHR
Microchip Technology
-
ATTINY10-TSHR
Microchip Technology
-
ATTINY10-TS8R
Microchip Technology
-
ATTINY202-SSNR
Microchip Technology
-
ATTINY202-SSFR
Microchip Technology
-
ATTINY402-SSNR
Microchip Technology
-
PIC16F15213T-I/MF
Microchip Technology
-
PIC16F15213-E/MF
Microchip Technology
-
PIC10F200T-I/OT
Microchip Technology
-
ATTINY412-SSNR
Microchip Technology
-
PIC10F202T-I/OT
Microchip Technology
-
ATTINY404-SSNR
Microchip Technology
Tech Hub
A practical engineering guide to 3.3V and 5V logic compatibility, input thresholds, resistor dividers, translator ICs, MOSFET level shifting, I2C pull-ups, timing limits and power-sequencing risks.
The 74HC595 uses push-pull logic outputs, while the TPIC6B595 uses 50 V open-drain DMOS sinks for higher-power loads. This guide compares timing, current limits, 3.3 V interfacing, load wiring, thermal…
The 74HC595 converts serial data into eight stable parallel outputs. This guide covers pin functions, shift and storage timing, OE and MR behavior, drive-current limits, cascading, voltage compatibilit…
A technical comparison of level-sensitive latches and edge-triggered flip-flops, covering timing windows, setup and hold limits, master–slave operation, time borrowing, race-through, HDL inference and…
A D latch stores one bit while Enable controls when data can pass. This reference covers gate-level operation, truth tables, transparency, setup and hold timing, LE versus OE, common ICs and practical …
An SR latch stores one bit through cross-coupled feedback. This engineering reference covers NOR and NAND implementations, truth tables, forbidden-state recovery, gated operation, switch debouncing, fa…
Latch circuits retain one bit through feedback. This technical reference covers SR and D latches, truth tables, transparency, timing limits, latch-versus-flip-flop behavior, applications and common log…
An engineering guide to LED driver operation, constant-current and constant-voltage outputs, linear and switching topologies, dimming, IC selection, calculations, replacement compatibility, and fault c…
Operational amplifier guide covering op amp basics, feedback, ideal vs real op amps, common configurations, buffer circuits, offset, bias current, gain-bandwidth, slew rate, rail-to-rail limits and sel…
Jumper cables guide covering safe connection order, red and black clamp placement, final ground connection, cable gauge, length, clamp quality, copper vs CCA cables, jump starter comparison and battery…
