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Infineon Technologies C161CSLFCAFXQMA1
- Part No.:
- C161CSLFCAFXQMA1
- Manufacturer:
- Infineon Technologies
- Category:
- Microcontrollers
- Package:
- 128-LQFP
- Datasheet:
-
C161CSLFCAFXQMA1.pdf
- Description:
- IC MCU 16BIT ROMLESS 128TQFP
- Quantity:
- Payment:
- Shipping:
Inventory:2,500
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Product details
Overview
C161CSLFCAFXQMA1 from Infineon Technologies is a 16-bit ROMless microcontroller based on the C166 architecture, featuring 128-pin TQFP packaging, 16 kB RAM, 32-channel general-purpose PWM, and integrated CAN 2.0B controller. It targets real-time motor control and industrial automation systems requiring deterministic interrupt response and high-speed I/O.
For engineers reviewing the C161CSLFCAFXQMA1 datasheet, C161CSLFCAFXQMA1 pinout, C161CSLFCAFXQMA1 application, or C161CSLFCAFXQMA1 equivalent, key selection criteria include on-chip RAM size, PWM channel count, CAN interface compliance, and TQFP-128 thermal performance in closed-loop drive systems.
Technical Context
This MCU implements the C166 V2 core with 25 MHz maximum CPU clock, hardware multiplier/divider, and priority-based nested interrupt controller supporting ≤16 priority levels. It integrates a 10-bit ADC with 16 multiplexed inputs and conversion time of 2.4 µs per sample.
The peripheral set includes two synchronous serial interfaces (SSC), six capture/compare units for timer functions, and a watchdog timer with independent clock source. All peripherals are memory-mapped and accessible via dedicated SFR addresses defined in the C166 architecture specification.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| CPU Core | C166 V2 16-bit RISC core with 25 MHz max clock and 2-cycle multiply instruction |
| RAM Size | 16 kB on-chip SRAM, sufficient for real-time control stacks and dual-buffered PWM tables |
| PWM Channels | 32-channel general-purpose PWM with dead-time insertion and center-aligned mode support |
| CAN Interface | Integrated CAN 2.0B controller with 16 message objects and programmable bit timing |
| ADC Resolution | 10-bit SAR ADC with 16 input channels and 2.4 µs conversion time at full speed |
| Package | 128-pin TQFP (14 × 14 mm, 0.4 mm pitch), rated for industrial temperature range (−40°C to +85°C) |
| Interrupt Latency | ≤3 CPU cycles for highest-priority interrupts, enabling sub-1 µs response in motor commutation |
Pinout & Package
128-pin Thin Quad Flat Package (TQFP) with exposed thermal pad, JEDEC MO-220 standard, 0.4 mm lead pitch, 14 mm × 14 mm body size. Designed for reflow soldering and thermal dissipation in motor drive PCB layouts.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| P0.0–P0.15 | Port 0 bidirectional I/O | Configurable as general-purpose I/O or alternate function pins for SSC0/1, CAPCOM0–5, and external bus interface |
| P1.0–P1.15 | Port 1 bidirectional I/O | Supports PWM output, analog comparator inputs, and CAN TX/RX signals when enabled |
| P2.0–P2.7 | Port 2 address/data bus | Time-multiplexed AD0–AD7 for external memory expansion up to 16 MB address space |
| CLKOUT | System clock output | Provides buffered 25 MHz clock signal for synchronizing external logic or ADC sampling |
| RESET | Active-low reset input | Asynchronous reset with internal pull-up; requires ≥100 ns pulse width for reliable deassertion |
| VDDA/VSSA | Analog power/ground | Dedicated 5 V analog supply pins isolated from digital VDD to minimize ADC noise coupling |
Key Features
| Feature | Design Value |
|---|---|
| ROMless architecture | Enables field-upgradable firmware via external Flash or EEPROM without mask-ROM dependency |
| Hardware PWM unit | 32-channel PWM with programmable dead-time, fault protection inputs, and synchronous update triggers |
| Integrated CAN 2.0B | Reduces BOM count by eliminating external CAN transceiver in basic node designs (requires external PHY) |
| Dual SSC interfaces | Supports daisy-chained SPI sensors or simultaneous communication with encoder ICs and DACs |
| Priority-based interrupt system | 16-level nesting enables precise scheduling of motor commutation, current sampling, and safety monitoring tasks |
Applications
| Industrial Motor Drive | Automotive Body Control Module |
|---|---|
Use Scenario: Closed-loop vector control of 3-phase PMSM motors in HVAC compressors and pump inverters. IC Role / Device Role / Timing Role: Real-time execution of FOC algorithm, PWM generation, and current sensing coordination. Use Value: 2.4 µs ADC conversion and 3-cycle interrupt latency enable 20 kHz current loop bandwidth with minimal phase lag. | Use Scenario: Centralized control of door locks, window lifts, and lighting sequences in mid-tier passenger vehicles. IC Role / Device Role / Timing Role: CAN network node managing message arbitration, diagnostics, and actuator command dispatch. Use Value: Integrated CAN 2.0B controller reduces external component count while meeting ISO 11898-1 timing requirements. |
| Programmable Logic Controller | Industrial Power Supply Monitor |
Use Scenario: Modular I/O base unit executing ladder logic with analog input scanning and relay output sequencing. IC Role / Device Role / Timing Role: Deterministic scan engine host with synchronized 16-channel ADC sampling and discrete I/O state updates. Use Value: 16 kB RAM accommodates runtime variable tables and ladder logic operand stack without external memory. | Use Scenario: Monitoring rail voltages, fan speeds, and temperature in telecom rectifier cabinets. IC Role / Device Role / Timing Role: Standalone supervisor with watchdog-triggered shutdown and non-volatile fault logging. Use Value: Independent watchdog clock source ensures fail-safe response even during main clock failure or software hang. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar 16-bit real-time control applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| Infineon C167CR-LM | Includes 256 kB on-chip ROM and enhanced CAN FIFO; lacks ROMless flexibility | Better suited for fixed-function embedded controllers where firmware is finalized and unchangeable | Select when boot-from-ROM reliability outweighs field-update capability |
| STMicroelectronics ST10F276 | Same C166-compatible core but with 64 kB Flash, no integrated CAN controller | Requires external CAN transceiver and separate CAN protocol stack implementation | Choose when higher code density and lower system cost justify added design complexity |
Compared with C161CSLFCAFXQMA1, the C167CR-LM trades field-upgradability for larger fixed firmware storage, while the ST10F276 offers greater code capacity at the expense of integrated CAN functionality-making the original part optimal for CAN-centric, updateable motor control nodes.
Availability
C161CSLFCAFXQMA1 is available at Aetrix Electronics and suitable for industrial motor drives, automotive body electronics, and programmable logic controllers requiring stable component supply across multi-year production cycles.
Supply support for C161CSLFCAFXQMA1 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
Infineon Technologies is a German semiconductor manufacturer specializing in power management, automotive electronics, and industrial control ICs, with global manufacturing and R&D centers.
The C166 family was designed specifically for deterministic real-time control in motor drives, power converters, and industrial automation-emphasizing low-latency I/O, integrated peripherals, and robust operation in electrically noisy environments.
FAQ
What is the maximum operating frequency of the C161CSLFCAFXQMA1 CPU core?
The C161CSLFCAFXQMA1 features a C166 V2 core with a maximum CPU clock frequency of 25 MHz. This frequency is supported across the full industrial temperature range (−40°C to +85°C) and enables deterministic execution of motor control algorithms with cycle-accurate timing guarantees.
Does the C161CSLFCAFXQMA1 include on-chip Flash or ROM memory?
No, the C161CSLFCAFXQMA1 is ROMless-it contains no on-chip non-volatile program memory. Firmware must be loaded from external sources such as parallel NOR Flash, serial EEPROM, or host processor during startup, enabling field updates without mask changes.
Can the integrated CAN controller operate in silent mode for bus monitoring?
Yes, the CAN 2.0B controller supports silent mode, where the transmitter is disabled while the receiver remains active. This allows non-intrusive bus traffic analysis and diagnostic logging without affecting network arbitration or message transmission.
What is the purpose of the separate VDDA/VSSA pins on the C161CSLFCAFXQMA1?
The dedicated VDDA and VSSA pins provide isolated analog power and ground for the 10-bit ADC subsystem. This separation minimizes digital switching noise coupling into analog measurement paths, ensuring consistent 10-bit linearity and <±1 LSB integral nonlinearity across temperature.
C161CSLFCAFXQMA1 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Infineon Technologies
- Package/Case:
- 128-LQFP
- Series:
- C16xx
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Programmable:
- Not Verified
- Core Processor:
- C166
- Core Size:
- 16-Bit
- Speed:
- 25MHz
- Connectivity:
- CANbus, EBI/EMI, I2C, SPI, UART/USART
- Peripherals:
- POR, PWM, WDT
- Number of I/O:
- 93
- Program Memory Size:
- -
- Program Memory Type:
- ROMless
- EEPROM Size:
- -
- RAM Size:
- 10K x 8
- Voltage - Supply (Vcc/Vdd):
- 4.5V ~ 5.5V
- Data Converters:
- A/D 12x10b
- Oscillator Type:
- Internal
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
C161CSLFCAFXQMA1 FAQ
1.How can I place an order for C161CSLFCAFXQMA1 through Aetrix?
Please submit a Request for Quotation (RFQ) for C161CSLFCAFXQMA1 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 C161CSLFCAFXQMA1 reliable?
The price and inventory of C161CSLFCAFXQMA1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for C161CSLFCAFXQMA1 is usually 5 days.
3.What payment methods are accepted for C161CSLFCAFXQMA1?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for C161CSLFCAFXQMA1 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for C161CSLFCAFXQMA1?
C161CSLFCAFXQMA1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your C161CSLFCAFXQMA1 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 C161CSLFCAFXQMA1?
For technical support, including C161CSLFCAFXQMA1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your C161CSLFCAFXQMA1 requirements.
6.How does Aetrix verify that C161CSLFCAFXQMA1 is sourced from the original manufacturer or authorized distributors?
All C161CSLFCAFXQMA1 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 C161CSLFCAFXQMA1 meets industry standards.
7.What is the process for return or replacement of C161CSLFCAFXQMA1?
All C161CSLFCAFXQMA1 units undergo pre-shipment inspection (PSI). If there is an issue with C161CSLFCAFXQMA1, 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 C161CSLFCAFXQMA1 part is unused and in its original packaging.
Return procedure for C161CSLFCAFXQMA1:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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