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STMicroelectronics ST10F272M-4QR3
- Part No.:
- ST10F272M-4QR3
- Manufacturer:
- STMicroelectronics
- Category:
- Microcontrollers
- Package:
- 144-BQFP
- Datasheet:
-
ST10F272M-4QR3.pdf
- Description:
- IC MCU 16BIT 256KB FLASH 144QFP
- Quantity:
- Payment:
- Shipping:
Inventory:3,921
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Product details
Overview
ST10F272M-4QR3 from STMicroelectronics is a 16-bit automotive-grade MCU featuring a 40 MHz CPU, 256 KB Flash memory, 20 KB RAM (2 KB IRAM + 18 KB XRAM), dual CAN 2.0B interfaces, and a 24-channel 10-bit ADC - deployed in engine control units and industrial motor drives requiring deterministic real-time response.
For engineers reviewing the ST10F272M-4QR3 datasheet, ST10F272M-4QR3 pinout, ST10F272M-4QR3 application, or ST10F272M-4QR3 equivalent, key selection criteria include CAN bus scalability (dual independent busses), on-chip PLL with 4–8 MHz oscillator support, 16-priority-level interrupt system with 56 sources, and fail-safe features including programmable watchdog and oscillator watchdog.
Technical Context
This MCU implements a 16-bit ST10 CPU core with integrated MAC unit supporting 16×16-bit multiply and 40-bit accumulate operations in single cycle, enabling real-time DSP tasks in powertrain control. Its memory architecture supports up to 16 MB linear address space (5 MB when CAN/I²C enabled) with configurable external bus timing via five chip-select signals.
The interrupt system delivers sub-25 ns sampling resolution across 56 sources, coordinated by an 8-channel peripheral event controller for zero-cycle data transfer. Dual CAN modules operate in C-CAN mode with 64-message or 2×32-message buffering, supporting both single-bus and parallel-bus configurations per ISO 11898-1.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| CPU Core | 16-bit ST10 with DSP extensions, 50 ns instruction cycle at 40 MHz - enables hard real-time loop execution in automotive ECU firmware. |
| Flash Memory | 256 KB single-voltage Flash with 100K erase/program cycles and hardware protection registers - supports field firmware updates with secure boot integrity. |
| RAM | 2 KB internal RAM + 18 KB extended RAM - separates critical context storage from bulk data buffers for deterministic ISR latency. |
| ADC | 24-channel 10-bit SAR ADC: 16 ch ±2 LSB, 8 ch ±5 LSB, min 4.85 µs conversion - meets ASIL-B signal acquisition requirements for throttle and sensor monitoring. |
| CAN Interfaces | Dual CAN 2.0B compliant (C-CAN), 64-message or 2×32-message RAM - enables redundant communication paths or multi-node gateway functionality. |
| Operating Temp | -40 °C to +125 °C - qualified for under-hood automotive deployment without derating. |
| Supply Voltage | 5 V ±10 % with embedded 1.8 V core regulator - eliminates need for external core LDO in cost-sensitive engine control designs. |
Pinout & Package
LQFP144 package (20 × 20 mm, 0.5 mm pitch) with 111 general-purpose I/O lines - supports multiplexed/demultiplexed external bus expansion and configurable hysteresis thresholds for noisy industrial environments.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| XTAL1 / XTAL2 | Crystal oscillator input/output | Supports 4–8 MHz fundamental-mode quartz crystal; enables precise clock generation with on-chip PLL for jitter-sensitive CAN timing. |
| CANH / CANL (CAN1 & CAN2) | Differential CAN bus transceiver interface | Direct connection to ISO 11898-compliant physical layer; no external level-shifting required for standard CAN bus termination. |
| AD0–AD23 | Analog input channels | 24 dedicated pins mapped to 10-bit ADC with selectable reference (VREF+ / VDDA); supports simultaneous sampling of engine sensor clusters. |
| P0–P15, P2–P15, etc. | Programmable GPIO / alternate function | Individually configurable as input/output/special function (e.g., PWM, capture/compare, serial); hysteresis programmable for EMC robustness. |
| RESET | Asynchronous reset input | Active-low with internal pull-up; supports external watchdog assertion and bidirectional reset circuitry per automotive safety standards. |
Key Features
| Feature | Design Value |
|---|---|
| On-chip PLL with 4–8 MHz oscillator | Generates stable 40 MHz CPU clock from low-cost crystal; eliminates external clock generator and reduces BOM count. |
| Fail-safe protection suite | Includes programmable watchdog timer and oscillator watchdog - detects clock failure or software hang within defined time windows for ASIL-B compliance. |
| Bootstrap loader with ABM/SBM | Enables selective firmware update via ASC/I²C without full reflash; supports secure signature verification before booting user code. |
| X-peripheral clock gating | Reduces dynamic power by disabling clocks to unused peripherals (e.g., disabled CAN module) while preserving register state. |
| Real-time clock with 32 kHz oscillator | On-die 32 kHz RC oscillator enables wake-from-standby timing without external crystal - lowers system cost and board space. |
Applications
| Engine Control Unit (ECU) | Industrial Motor Drive Controller |
|---|---|
Use Scenario: Real-time closed-loop control of fuel injection, ignition timing, and air-fuel ratio using analog sensor inputs and PWM-driven actuators. IC Role / Device Role / Timing Role: Primary compute engine executing deterministic control algorithms with sub-100 µs ISR latency and synchronized CAN messaging. Use Value: Dual CAN interfaces enable concurrent communication with transmission ECU and body control module; 24-channel ADC supports simultaneous sampling of MAP, TPS, O2, and coolant sensors. | Use Scenario: Field-oriented control (FOC) of 3-phase AC induction motors in HVAC compressors and pump systems. IC Role / Device Role / Timing Role: Real-time PWM generation (4-channel PWM + 4-channel XPWM), current sensing via ADC, and torque feedback over CAN. Use Value: MAC unit accelerates Clarke/Park transforms; 16-priority interrupt system ensures timely execution of current-loop and speed-loop ISRs. |
| Automotive Gateway Module | Heavy-Duty Vehicle Telematics Unit |
Use Scenario: Protocol translation between CAN FD (powertrain), LIN (body), and Ethernet (infotainment) domains in commercial vehicle platforms. IC Role / Device Role / Timing Role: Bridge processor managing message filtering, routing, and diagnostics across multiple CAN busses with configurable message RAM. Use Value: Dual independent CAN controllers support separate bus arbitration and error handling; 5 Mbyte address space with CAN enabled allows large routing tables and diagnostic log buffers. | Use Scenario: Remote diagnostics, GPS tracking, and fleet management reporting in long-haul trucks operating in extreme ambient temperatures. IC Role / Device Role / Timing Role: Host controller for GNSS receiver, cellular modem, and CAN-based J1939 vehicle network monitoring. Use Value: -40 °C to +125 °C operation ensures reliability in unventilated cab enclosures; watchdog and oscillator watchdog prevent lockup during voltage transients on 24 V battery supply. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar 16-bit automotive MCU applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| Infineon C167CS-LM | 16-bit C166 core, 32 KB Flash, no on-chip CAN; requires external CAN controller | Limited to single-CAN applications; lacks integrated dual CAN and 24-channel ADC | Select only if legacy C166 toolchain compatibility is mandatory and CAN bandwidth requirements are low. |
| NXP S12XEP100 | 16-bit HCS12X core, 1 MB Flash, dual CAN, but 85 °C max junction temperature | Not qualified for under-hood use above 125 °C; higher Flash density offsets lack of XRAM flexibility | Prefer for cabin-integrated telematics where ambient temperature stays below 85 °C and larger code footprint is needed. |
Compared with C167CS-LM and S12XEP100, ST10F272M-4QR3 uniquely combines dual CAN 2.0B, -40 °C to +125 °C operation, and 256 KB Flash with on-chip PLL and fail-safe watchdog - making it optimal for high-reliability engine control and heavy-duty vehicle gateways.
Availability
ST10F272M-4QR3 is available at Aetrix Electronics and suitable for engine control units, industrial motor drives, automotive gateway modules, and heavy-duty vehicle telematics requiring stable component supply across extended product lifecycles.
Supply support for ST10F272M-4QR3 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 automotive, industrial, and power management ICs with vertical manufacturing capability and AEC-Q100 qualification expertise.
The ST10 family was designed specifically for deterministic real-time control in automotive powertrain and chassis systems, emphasizing fail-safe operation, CAN integration, and high-temperature reliability - distinguishing it from general-purpose 16-bit microcontrollers.
FAQ
What is the maximum CPU clock frequency and how is it generated?
The ST10F272M-4QR3 achieves a maximum CPU clock of 40 MHz using its on-chip PLL, which accepts a 4–8 MHz crystal input on XTAL1/XTAL2. The PLL multiplies the input frequency and provides internal clock distribution with jitter specifications compliant for CAN bit timing accuracy per ISO 11898-1.
Does this MCU support secure firmware updates in the field?
Yes - the integrated bootstrap loader supports Alternate Boot Mode (ABM) and Selective Boot Mode (SBM), enabling firmware updates via ASC or I²C. User-mode signature integrity checks verify digital signatures before executing updated code, and Flash protection registers prevent unauthorized write access to protected sectors.
How many CAN message objects does the device support and how are they allocated?
The ST10F272M-4QR3 supports either 64 message objects in a unified RAM pool or 2×32 objects split across two independent CAN controllers (C-CAN version). Message RAM is configurable via CAN control registers, allowing flexible allocation between transmit/receive buffers and filter masks per bus.
What power-saving modes are available and what peripherals remain active in each?
Three low-power modes are supported: Idle (CPU halted, peripherals active), Power-down (CPU and most clocks stopped, RTC and watchdog running), and Stand-by (core powered down, 32 kHz oscillator active). In Stand-by mode, only the RTC, oscillator watchdog, and asynchronous reset circuit remain functional - enabling wake-up on CAN activity or RTC alarm.
ST10F272M-4QR3 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- STMicroelectronics
- Package/Case:
- 144-BQFP
- Series:
- ST10
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Programmable:
- Not Verified
- Core Processor:
- ST10
- Core Size:
- 16-Bit
- Speed:
- 40MHz
- Connectivity:
- ASC, CANbus, EBI/EMI, I2C, SSC, UART/USART
- Peripherals:
- POR, PWM, WDT
- Number of I/O:
- 111
- Program Memory Size:
- 256KB (256K x 8)
- Program Memory Type:
- FLASH
- EEPROM Size:
- -
- RAM Size:
- 20K x 8
- Voltage - Supply (Vcc/Vdd):
- 4.5V ~ 5.5V
- Data Converters:
- A/D 24x10b
- Oscillator Type:
- Internal
- Operating Temperature:
- -40°C ~ 125°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
ST10F272M-4QR3 FAQ
1.How can I place an order for ST10F272M-4QR3 through Aetrix?
Please submit a Request for Quotation (RFQ) for ST10F272M-4QR3 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 ST10F272M-4QR3 reliable?
The price and inventory of ST10F272M-4QR3 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for ST10F272M-4QR3 is usually 5 days.
3.What payment methods are accepted for ST10F272M-4QR3?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for ST10F272M-4QR3 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for ST10F272M-4QR3?
ST10F272M-4QR3 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your ST10F272M-4QR3 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 ST10F272M-4QR3?
For technical support, including ST10F272M-4QR3 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ST10F272M-4QR3 requirements.
6.How does Aetrix verify that ST10F272M-4QR3 is sourced from the original manufacturer or authorized distributors?
All ST10F272M-4QR3 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 ST10F272M-4QR3 meets industry standards.
7.What is the process for return or replacement of ST10F272M-4QR3?
All ST10F272M-4QR3 units undergo pre-shipment inspection (PSI). If there is an issue with ST10F272M-4QR3, 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 ST10F272M-4QR3 part is unused and in its original packaging.
Return procedure for ST10F272M-4QR3:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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