STMicroelectronics ST10F271Z1Q3
- Part No.:
- ST10F271Z1Q3
- Manufacturer:
- STMicroelectronics
- Category:
- Microcontrollers
- Package:
- 144-BQFP
- Datasheet:
-
ST10F271Z1Q3.pdf
- Description:
- IC MCU 16BIT 128KB FLASH 144PQFP
- Quantity:
- Payment:

- Shipping:

Inventory:1,579
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
ST10F271Z1Q3 from STMicroelectronics is a 16-bit automotive-grade MCU featuring a 64 MHz CPU, 128 KB Flash, 12 KB RAM, dual CAN 2.0B interfaces, and a 24-channel 10-bit ADC with 3 µs conversion time-used in engine control units and industrial motion controllers requiring deterministic real-time response.
For engineers reviewing the ST10F271Z1Q3 datasheet, ST10F271Z1Q3 pinout, ST10F271Z1Q3 application, or ST10F271Z1Q3 equivalent, key selection criteria include its 16-priority-level interrupt system (56 sources), MAC unit for DSP-intensive control loops, fail-safe watchdog and oscillator watchdog, and PQFP144 packaging qualified for -40/+125°C operation.
Technical Context
The ST10F271Z1Q3 integrates a 16-bit ST10 CPU core with hardware multiply-accumulate (16×16-bit mult, 40-bit accumulator) and single-cycle context switching-enabling fast ISR entry for time-critical motor control and powertrain applications. Its memory architecture supports up to 16 Mbyte linear addressing, with 5 Mbyte available when CAN or I²C peripherals are active.
It features two multi-functional general-purpose timer units (GPT1/GPT2), two 16-channel CAPCOM units, a 4-channel PWM + 4-channel XPWM subsystem, and dual C-CAN modules supporting 64-message or 2×32-message configurations-configured via dedicated CAN control registers and message RAM.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| CPU Core | 16-bit ST10 with DSP extensions: 31.25 ns instruction cycle at 64 MHz enables sub-µs loop execution in closed-loop control. |
| Flash Memory | 128 KB single-voltage Flash with 100K erase/program cycles; supports in-system programming and sector protection. |
| RAM | 12 KB total (2 KB IRAM + 10 KB XRAM); XRAM accessible via programmable external bus with five chip-select signals. |
| ADC | 24-channel 10-bit SAR ADC; minimum 3 µs conversion time allows sampling at ≥333 kSPS for high-bandwidth sensor acquisition. |
| CAN Interfaces | Dual CAN 2.0B compliant modules (C-CAN); support 1-bus or 2-bus topology with 64-message or split 32+32-message RAM allocation. |
| Timers & PWM | Two GPT units (5 timers total), two 16-channel CAPCOM units, and 4-channel PWM + 4-channel XPWM for precise phase-shifted motor drive signals. |
| Operating Range | 5 V ±10% supply; industrial temperature range -40°C to +125°C-validated for under-hood automotive environments. |
Pinout & Package
PQFP144 (28 × 28 × 3.4 mm) plastic quad flat package with 111 general-purpose I/O lines-each individually configurable as input, output, or alternate function (e.g., CAN TX/RX, ASC, CAPCOM, PWM), with programmable hysteresis threshold.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDD, VSS | Power supply and ground | Primary 5 V supply pins; multiple VSS pins ensure low-impedance return paths for noise-sensitive analog/digital domains. |
| XTAL1, XTAL2 | Crystal oscillator inputs | Support 4–8 MHz crystal; internal PLL generates 64 MHz CPU clock-enables precise timing without external clock generator. |
| CANH, CANL (CAN1/CAN2) | CAN bus differential transceiver terminals | Dual isolated CAN physical layer interfaces; each supports 1 Mbps baud rate and bus fault detection per ISO 11898-2. |
| AD0–AD23 | Analog input channels | 24 dedicated ADC input pins; share multiplexed routing with port pins-enables flexible sensor interface without external muxing. |
| P0.0–P15.7 | General-purpose I/O ports | 111 total GPIO lines across Ports 0–15; software-configurable pull-up/down, open-drain mode, and hysteresis for robust industrial signal conditioning. |
Key Features
| Feature | Design Value |
|---|---|
| On-chip bootstrap loader | Enables field firmware updates via ASC or CAN-eliminates need for external programmer in production or service environments. |
| Fail-safe protection suite | Includes programmable watchdog timer and oscillator watchdog-detects clock failure or software hang and triggers safe state recovery. |
| Real-time clock with 32 kHz oscillator | Integrated low-power 32 kHz RC oscillator supports RTC operation during stand-by mode-maintains timekeeping with minimal current draw. |
| Power reduction modes | Three low-power states: idle (CPU halted, peripherals active), power-down (peripherals halted, RAM retained), stand-by (RTC active, lowest current). |
| External bus controller | Programmable bus timing with hold-acknowledge arbitration-supports interfacing to external Flash, SRAM, or FPGA logic without glue logic. |
Applications
| Engine Control Unit (ECU) | Industrial Motor Drive Controller |
|---|---|
Use Scenario: Real-time combustion timing, fuel injection pulse width modulation, and knock detection in gasoline/diesel engines. IC Role / Device Role / Timing Role: Primary control MCU executing PID-based torque management and CAN-based diagnostic communication (OBD-II). Use Value: 64 MHz deterministic execution and dual CAN interfaces enable synchronized actuator control and multi-node diagnostics within strict ASIL-B timing budgets. |
Use Scenario: Closed-loop vector control of 3-phase AC induction or BLDC motors in CNC spindles and servo drives. IC Role / Device Role / Timing Role: Real-time position/speed regulation using CAPCOM-captured encoder signals and XPWM-driven gate drivers. Use Value: 3 µs ADC conversion and single-cycle context switching allow 20 kHz current loop execution-meeting IEC 61800-5-2 functional safety requirements. |
| Automotive Body Control Module (BCM) | Heavy-Duty Vehicle Telematics Gateway |
Use Scenario: Centralized control of lighting, window lift, door locks, and HVAC actuators across distributed LIN/CAN nodes. IC Role / Device Role / Timing Role: CAN gateway and local decision node managing wake-up events, power sequencing, and fault logging. Use Value: 128 KB Flash stores multi-variant firmware images; -40/+125°C rating ensures reliability in trunk-mounted BCM installations. |
Use Scenario: Aggregation and secure transmission of J1939 vehicle bus data to cloud platforms via cellular modem. IC Role / Device Role / Timing Role: Dual-CAN bridge with message filtering, buffering, and ASC-based UART-to-modem interface. Use Value: 64-message CAN RAM and programmable external bus enable seamless integration with external 2 MB NOR Flash for OTA update storage. |
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, 40 MHz max, 256 KB Flash, no integrated CAN-requires external CAN controller. | Lacks dual CAN and failsafe oscillator watchdog; suited for non-safety-critical body electronics only. | Select if higher Flash density is required and CAN is implemented externally via SJA1000. |
| Renesas M16C/62P | 16-bit M16C core, 20 MHz max, 128 KB Flash, single CAN, 10-bit ADC with 10 µs conversion. | Lower performance limits use in high-speed control loops; lacks XPWM and CAPCOM2 units. | Choose for cost-sensitive, lower-complexity applications where 64 MHz deterministic timing is not required. |
Compared with the ST10F271Z1Q3, the C167CS-LM offers more Flash but requires external CAN hardware and lacks oscillator watchdog, while the M16C/62P trades raw speed and peripheral richness for lower power and simpler toolchain support-making the ST10F271Z1Q3 optimal for integrated, safety-aware powertrain designs.
Availability
ST10F271Z1Q3 is available at Aetrix Electronics and suitable for engine control units, industrial motor drives, automotive body control modules, and heavy-duty telematics gateways requiring stable component supply across extended temperature ranges and long product lifecycles.
Supply support for ST10F271Z1Q3 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 broad manufacturing and quality certifications including AEC-Q100.
The ST10 family was designed specifically for deterministic real-time control in automotive powertrain and chassis systems-prioritizing interrupt latency, on-chip peripheral integration, and functional safety features over general-purpose computing capability.
FAQ
Is the ST10F271Z1Q3 still in active production?
No-the ST10F271Z1Q3 is marked as obsolete by STMicroelectronics per official documentation (Rev 2, Jan 2008). However, Aetrix Electronics maintains legacy inventory with full traceability and provides extended lifecycle support, including obsolescence mitigation planning and cross-reference guidance for drop-in or migration-path alternatives.
What debug interface does the ST10F271Z1Q3 support?
The ST10F271Z1Q3 supports on-chip debugging via the ST10-specific JTAG-compatible interface (using pins P15.0–P15.3), enabling full breakpoint, watchpoint, and register visibility through ST's STVD10/STVP development tools-no external emulator hardware is required for basic firmware validation.
Can the internal 32 kHz oscillator drive the RTC independently of main CPU operation?
Yes-the on-chip 32 kHz RC oscillator remains active in stand-by mode and directly clocks the real-time clock module, allowing timekeeping with typical current consumption below 10 µA. This oscillator is factory-trimmed and does not require external components.
Does the ST10F271Z1Q3 support EEPROM emulation in Flash?
Yes-its Flash memory includes dedicated protection registers (e.g., Flash non-volatile access protection registers) and sectorization that enable robust EEPROM emulation. Application notes AN2604 and AN2605 detail wear-leveling algorithms and write-cycle management compatible with this device's 100K endurance specification.
ST10F271Z1Q3 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- STMicroelectronics
- Package/Case:
- 144-BQFP
- Series:
- ST10
- Packaging:
- Tray
- Product Status:
- Obsolete
- Programmable:
- Not Verified
- Core Processor:
- ST10
- Core Size:
- 16-Bit
- Speed:
- 64MHz
- Connectivity:
- CANbus, I2C, SSC, UART/USART
- Peripherals:
- POR, PWM, WDT
- Number of I/O:
- 111
- Program Memory Size:
- 128KB (128K x 8)
- Program Memory Type:
- FLASH
- EEPROM Size:
- -
- RAM Size:
- 12K 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:
ST10F271Z1Q3 FAQ
1.How can I place an order for ST10F271Z1Q3 through Aetrix?
Please submit a Request for Quotation (RFQ) for ST10F271Z1Q3 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 ST10F271Z1Q3 reliable?
The price and inventory of ST10F271Z1Q3 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for ST10F271Z1Q3 is usually 5 days.
3.What payment methods are accepted for ST10F271Z1Q3?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for ST10F271Z1Q3 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for ST10F271Z1Q3?
ST10F271Z1Q3 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your ST10F271Z1Q3 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 ST10F271Z1Q3?
For technical support, including ST10F271Z1Q3 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ST10F271Z1Q3 requirements.
6.How does Aetrix verify that ST10F271Z1Q3 is sourced from the original manufacturer or authorized distributors?
All ST10F271Z1Q3 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 ST10F271Z1Q3 meets industry standards.
7.What is the process for return or replacement of ST10F271Z1Q3?
All ST10F271Z1Q3 units undergo pre-shipment inspection (PSI). If there is an issue with ST10F271Z1Q3, 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 ST10F271Z1Q3 part is unused and in its original packaging.
Return procedure for ST10F271Z1Q3:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
ST10F271Z1Q3 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…

