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STMicroelectronics STR910FW32X6
- Part No.:
- STR910FW32X6
- Manufacturer:
- STMicroelectronics
- Category:
- Microcontrollers
- Package:
- 128-LQFP
- Datasheet:
-
STR910FW32X6.pdf
- Description:
- IC MCU 32BIT 256KB FLASH 128LQFP
- Quantity:
- Payment:
- Shipping:
Inventory:1,515
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Product details
Overview
STR910FW32X6 from STMicroelectronics is a 16/32-bit ARM966E-S-based microcontroller with dual-bank Flash (256KB + 32KB), 64KB SRAM, 10/100 Ethernet MAC, USB Full-Speed slave, CAN 2.0B, and 8-channel 10-bit ADC - designed for industrial gateways, POS terminals, and motor control systems operating at up to 96 MHz.
For engineers reviewing the STR910FW32X6 datasheet, STR910FW32X6 pinout, STR910FW32X6 application, or STR910FW32X6 equivalent, key selection criteria include ARM966E-S core performance, integrated Ethernet+CAN+USB connectivity, deterministic interrupt latency via branch cache, and LQFP80 packaging with 40 I/Os and 5 V-tolerant pins.
Technical Context
The STR910FW32X6 implements the ARM966E-S core with Harvard architecture, 5-stage pipeline, and Tightly-Coupled Memories - enabling simultaneous instruction fetch and data access. It integrates a burst Flash interface with 4-entry Branch Cache and 4-instruction Pre-Fetch Queue to sustain 96 MIPS from Flash without instruction cache.
Its peripheral set includes a dedicated 3-phase induction motor controller (IMC) with dead-time generation and emergency stop, plus a Vectored Interrupt Controller (VIC) supporting 30 interrupt pins and FIQ/IRQ prioritization - optimized for real-time industrial control with sub-μs interrupt response.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| CPU Core | ARM966E-S RISC, Harvard architecture, 5-stage pipeline, binary-compatible with ARM7/Thumb code |
| Max Clock Speed | 96 MHz via internal PLL - enables 96 MIPS execution directly from Flash memory |
| Memory | 256KB main Flash + 32KB secondary Flash; 64KB SRAM with optional battery backup |
| ADC | 8-channel, 10-bit, 0.7 μs conversion time, 0–3.6 V input range |
| Communication | 10/100 Ethernet MAC with DMA, USB 2.0 Full-Speed (12 Mbps) slave, CAN 2.0B, 3× UART, 2× I²C, 2× SPI/SSI/Microwire |
| Timers & Control | 4× 16-bit standard timers (input capture/output compare/PWM/pulse count); integrated 3-phase IMC with adjustable center-aligned PWM and tachometer input |
| Power Management | Run/Idle/Sleep modes; Sleep current as low as 50 μA; dual supply: 1.8 V ±10% core, 2.7–3.6 V I/O |
Pinout & Package
LQFP80 package (12 × 12 mm), 80-pin quad flat pack with exposed thermal pad; supports 40 general-purpose I/Os (5 V tolerant), including 16 high-sink-current pins (8 mA), bit-wise port manipulation, and multiplexed peripheral functions.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDD | Core power supply | 1.8 V ±10% input for CPU and internal logic; requires local decoupling |
| VDDQ | I/O power supply | 2.7–3.6 V input for all GPIO and peripheral I/O; enables 5 V tolerance on selected pins |
| OSC_IN / OSC_OUT | External crystal oscillator interface | Supports 4–25 MHz crystal for precise clock source; feeds internal PLL and RTC calibration |
| RESET_INn | Active-low external reset input | Asynchronous reset assertion; monitored by system supervisor for brown-out and watchdog recovery |
| ETH_MDC / ETH_MDIO | Ethernet management interface | IEEE 802.3-compliant MDIO bus for PHY configuration and status readback |
| USB_DP / USB_DM | USB differential data pair | Full-speed (12 Mbps) signaling compliant with USB 2.0 specification; internal transceiver with pull-up control |
| CAN_RX / CAN_TX | CAN 2.0B physical layer interface | Differential signaling for robust automotive/industrial bus communication; supports 1 Mbit/s operation |
Key Features
| Feature | Design Value |
|---|---|
| Branch Cache + Prefetch Queue | 4-entry branch cache and 4-instruction prefetch queue reduce interrupt latency and eliminate instruction cache stalls during loop execution |
| Dual-Bank Flash Architecture | 256KB main + 32KB secondary Flash enables in-application programming (IAP) and firmware updates without halting real-time operation |
| Integrated 3-Phase IMC | Dedicated motor control unit with dead-time insertion, emergency stop, and tachometer input - eliminates need for external gate driver logic |
| Real-Time Clock (RTC) | Calendar-mode RTC with tamper detection, wake-up timer, and battery-backed operation for time-stamped event logging |
| Embedded Trace Module (ETM9) | ARM ETM9 v.r2p2 provides high-speed instruction trace over 9-pin interface - enables non-intrusive debugging of timing-critical firmware |
Applications
| Industrial Gateway | POS Terminal |
|---|---|
|
Use Scenario: Protocol translation between legacy RS-485 field devices and cloud-connected Ethernet/WiFi networks. IC Role / Device Role / Timing Role: Central protocol stack processor with concurrent Ethernet MAC, CAN, and UART handling; RTC provides transaction timestamping. Use Value: Single-chip integration reduces BOM count and PCB area while maintaining deterministic response under multi-interface load. |
Use Scenario: Secure payment terminal with card reader, display, and receipt printer interfacing. IC Role / Device Role / Timing Role: Main controller executing EMV-compliant secure boot, USB HID for host PC communication, and ADC for analog sensor monitoring. Use Value: Dual Flash banks allow secure firmware updates without disrupting live transaction processing. |
| Motor Control System | Security Panel |
|
Use Scenario: Closed-loop speed/position control of 3-phase AC induction motors in HVAC or conveyor systems. IC Role / Device Role / Timing Role: Real-time motor controller using IMC PWM outputs, ADC for current sensing, and TIM modules for encoder quadrature decoding. Use Value: Hardware-accelerated dead-time insertion and emergency stop ensure functional safety compliance without software overhead. |
Use Scenario: Intrusion detection panel managing door contacts, motion sensors, and alarm siren drivers. IC Role / Device Role / Timing Role: Low-power security manager with RTC calendar, tamper-detect input, and 5 V-tolerant GPIO for legacy sensor interfacing. Use Value: 50 μA sleep mode extends battery life in backup-powered installations while retaining full RTC and tamper state. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar ARM9-based microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| STR912FV32X6 | 512KB + 32KB Flash, 96KB SRAM, LQFP128 package with EMI bus and 80 I/Os | Requires larger PCB footprint and additional external memory support; suited for complex HMI or protocol gateway designs | Select when >256KB Flash or EMI expansion capability is required; not pin-compatible with STR910FW32X6 |
| STM32F407VGT6 | Cortex-M4F core, 1 MB Flash, 192 KB RAM, no integrated Ethernet MAC or CAN 2.0B (requires external PHY or transceiver) | Higher DSP performance but lacks native Ethernet/CAN coexistence; requires external components for same connectivity | Choose for floating-point-intensive algorithms where external PHY cost is acceptable; lacks STR910's deterministic interrupt latency architecture |
Compared with STR910FW32X6, STR912FV32X6 offers greater memory and I/O scalability in a larger package, while STM32F407VGT6 trades integrated connectivity for higher computational throughput and modern Cortex-M ecosystem support - neither matches the STR910's combined Ethernet+CAN+USB+IMC integration in LQFP80.
Availability
STR910FW32X6 is available at Aetrix Electronics and suitable for industrial gateways, point-of-sale terminals, and motor control systems requiring stable component supply and long-term lifecycle assurance.
Supply support for STR910FW32X6 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 specializing in microcontrollers, power management, and automotive-grade ICs - headquartered in Geneva, Switzerland, with manufacturing and R&D across Europe, Asia, and the Americas.
The STR91xF series was developed for high-integration industrial control applications demanding deterministic real-time performance, multi-protocol connectivity, and embedded motor control - targeting markets where legacy ARM9 compatibility and hardware-accelerated peripherals remain critical.
FAQ
Is STR910FW32X6 still in active production?
No - STR910FW32X6 is an obsolete product per STMicroelectronics' official documentation (Rev 4, Feb 2007). It remains available through authorized distributors and Aetrix Electronics' legacy component program with full traceability and extended lifecycle support for existing designs.
What debug interfaces does STR910FW32X6 support?
STR910FW32X6 supports JTAG with ARM EmbeddedICE® RT for real-time debugging, boundary scan testing, and in-system programming (ISP) of Flash memory. It also integrates ARM ETM9 for high-speed instruction trace via a dedicated 9-pin interface - enabling non-intrusive analysis of timing-critical code paths.
Does STR910FW32X6 support USB host functionality?
No - STR910FW32X6 implements only USB 2.0 Full-Speed (12 Mbps) device mode (slave), not host mode. Its USB peripheral supports 10 endpoints with FIFOs and DMA, intended for connection to a host PC or embedded host controller, not peripheral enumeration.
Can STR910FW32X6 operate with a single power supply?
No - STR910FW32X6 requires two independent supplies: 1.8 V ±10% for the core (VDD) and 2.7–3.6 V for I/O (VDDQ). These must be decoupled separately; mixing supplies violates absolute maximum ratings and risks latch-up or functional failure.
STR910FW32X6 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- STMicroelectronics
- Package/Case:
- 128-LQFP
- Series:
- STR9
- Packaging:
- Tray
- Product Status:
- Obsolete
- Programmable:
- Not Verified
- Core Processor:
- ARM9®
- Core Size:
- 16/32-Bit
- Speed:
- 96MHz
- Connectivity:
- CANbus, EBI/EMI, I2C, Microwire, SPI, SSP, UART/USART
- Peripherals:
- Brown-out Detect/Reset, DMA, Motor Control PWM, POR, PWM, WDT
- Number of I/O:
- 80
- Program Memory Size:
- 256KB (256K x 8)
- Program Memory Type:
- FLASH
- EEPROM Size:
- -
- RAM Size:
- 64K x 8
- Voltage - Supply (Vcc/Vdd):
- 1.65V ~ 2V
- Data Converters:
- A/D 8x10b
- Oscillator Type:
- Internal
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
STR910FW32X6 FAQ
1.How can I place an order for STR910FW32X6 through Aetrix?
Please submit a Request for Quotation (RFQ) for STR910FW32X6 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 STR910FW32X6 reliable?
The price and inventory of STR910FW32X6 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for STR910FW32X6 is usually 5 days.
3.What payment methods are accepted for STR910FW32X6?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for STR910FW32X6 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for STR910FW32X6?
STR910FW32X6 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your STR910FW32X6 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 STR910FW32X6?
For technical support, including STR910FW32X6 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your STR910FW32X6 requirements.
6.How does Aetrix verify that STR910FW32X6 is sourced from the original manufacturer or authorized distributors?
All STR910FW32X6 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 STR910FW32X6 meets industry standards.
7.What is the process for return or replacement of STR910FW32X6?
All STR910FW32X6 units undergo pre-shipment inspection (PSI). If there is an issue with STR910FW32X6, 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 STR910FW32X6 part is unused and in its original packaging.
Return procedure for STR910FW32X6:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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