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Infineon Technologies C161PIL25FCAFXUMA1
- Part No.:
- C161PIL25FCAFXUMA1
- Manufacturer:
- Infineon Technologies
- Category:
- Microcontrollers
- Package:
- 100-LQFP
- Datasheet:
-
C161PIL25FCAFXUMA1.pdf
- Description:
- IC MCU 16BIT ROMLESS 100TQFP
- Quantity:
- Payment:
- Shipping:
Inventory:3,696
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Product details
Overview
C161PIL25FCAFXUMA1 from Infineon Technologies is a 16-bit single-chip microcontroller in the C166 family, featuring a 4-stage pipeline CPU with 80 ns instruction cycle at 25 MHz, 10-bit 8-channel ADC (7.8 µs conversion), on-chip PLL clock generation (1:1.5–5), 1 KB IRAM + 2 KB XRAM, and I²C interface (400 kHz, 10-bit addressing). It serves as a system controller in industrial motor drives requiring deterministic real-time interrupt response down to 40 ns.
For engineers reviewing the C161PIL25FCAFXUMA1 datasheet, C161PIL25FCAFXUMA1 pinout, C161PIL25FCAFXUMA1 application, or C161PIL25FCAFXUMA1 equivalent, key selection criteria include its 100-pin TQFP/MQFP package, 16-priority-level interrupt system with 27 sources, programmable external bus (up to 8 MB address space), and bootstrap loader support for field firmware updates.
Technical Context
The C161PIL25FCAFXUMA1 implements a high-performance 16-bit CPU core with register-based architecture, single-cycle context switching, and enhanced Boolean bit manipulation-enabling efficient HLL execution and RTOS integration. Its peripheral event controller (PEC) supports single-cycle data transfers across 8 channels, decoupling CPU load from high-speed I/O operations.
On-chip clock generation uses a configurable PLL with integer dividers (1.5× to 5×), selectable prescaler, or direct external clock input; the real-time clock and oscillator watchdog provide fail-safe timing supervision. The 10-bit ADC includes programmable conversion time and four analog inputs multiplexed onto Port 5 pins (AN0–AN3).
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| CPU Core | 16-bit C166-compatible with 4-stage pipeline; enables 8 MIPS at 25 MHz for deterministic control loops. |
| Instruction Cycle | 80 ns at 25 MHz CPU clock; ensures sub-100 ns latency for time-critical ISR entry. |
| ADC Resolution | 10-bit SAR converter with 7.8 µs minimum conversion time; supports fast analog feedback in servo systems. |
| Interrupt Latency | 40 ns minimum sample rate; allows precise edge-triggered capture of encoder pulses or fault signals. |
| Memory Map | 16 MB linear address space (code + data); supports large control algorithms and dual-bank firmware storage. |
| I²C Interface | Two-channel, 10-bit addressing, 400 kHz operation; enables communication with multiple sensors or EEPROMs without GPIO overhead. |
| Package | 100-pin TQFP (14 × 14 mm, 0.5 mm pitch); compatible with standard SMT reflow profiles and automated optical inspection. |
Pinout & Package
Package: 100-pin TQFP (Thin Quad Flat Package), RoHS-compliant, lead-free, JEDEC MO-137AC standard.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| P5.0 / AN0 | Analog Input Channel 0 | Dedicated Schmitt-trigger input with internal routing to 10-bit ADC; used for voltage sensing in power stage monitoring. |
| P3.10 / TxD0 | UART Transmit Output | Asynchronous serial output with programmable baud rate; connects directly to RS-232 transceiver or isolated CAN gateway. |
| P3.15 / CLKOUT/FOUT | Programmable Clock Output | Drives external logic or test equipment with selectable frequency derived from PLL or divider chain; aids timing validation. |
| XTAL1 / XTAL2 | Crystal Oscillator Interface | Supports 1–25 MHz crystal or external CMOS clock; XTAL2 can be configured as FOUT for clock distribution. |
| EA / ALE / RD / WR/WRL | External Bus Control Signals | Enable demultiplexed 16-bit external memory interface with five programmable chip-selects for flash, SRAM, and peripherals. |
Key Features
| Feature | Design Value |
|---|---|
| Single-Cycle Context Switching | Enables RTOS task switching in ≤1 µs, critical for multi-threaded motion control with jitter < 1 µs. |
| Peripheral Event Controller (PEC) | Transfers data between peripherals and memory without CPU intervention-reducing ISR overhead by up to 70% in data-intensive applications. |
| Programmable Watchdog + Oscillator Watchdog | Dual independent watchdogs prevent lockup from software faults or clock failure; reset pulse width configurable for safe power-up sequencing. |
| On-Chip Bootstrap Loader | Allows in-system programming via UART or I²C without external programmer; supports field firmware updates over serial link. |
| Flexible Power Management | Idle and power-down modes reduce current to < 100 µA; wake-up via external interrupt or RTC alarm maintains low-energy operation. |
Applications
| Industrial Motor Drive | Power Supply Controller |
|---|---|
Use Scenario: Closed-loop vector control of 3-phase BLDC motors with position feedback from Hall sensors or encoders. IC Role / Device Role / Timing Role: Real-time computation engine executing PWM generation, current regulation, and commutation logic with < 2 µs jitter. Use Value: 40 ns interrupt sampling captures encoder edges precisely; PEC offloads ADC-to-PWM synchronization, freeing CPU for PID tuning. |
Use Scenario: Digital control of isolated AC/DC SMPS with adaptive voltage/current limiting and thermal derating. IC Role / Device Role / Timing Role: System supervisor managing analog sensing, digital compensation, fault logging, and communication with host MCU. Use Value: On-chip 10-bit ADC measures Vout, Iin, and temperature simultaneously; I²C interface reports status to master controller. |
| Factory Automation PLC I/O Module | Medical Diagnostic Equipment |
Use Scenario: Modular digital I/O expansion unit with 24 V DC input filtering, relay driver outputs, and Modbus RTU over RS-485. IC Role / Device Role / Timing Role: Local intelligence node handling debounce, state machine logic, and protocol framing before upstream transmission. Use Value: 76 GPIO lines support mixed digital input/output; programmable input thresholds reject noise in electrically noisy factory environments. |
Use Scenario: Embedded controller in portable ultrasound front-end managing transducer bias, signal conditioning, and data buffering. IC Role / Device Role / Timing Role: Timing-critical subsystem coordinator synchronizing ADC sampling, DAC waveform generation, and DMA transfers. Use Value: 16 MB address space accommodates dual-buffered echo data; real-time clock timestamps acquisitions for Doppler analysis. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar 16-bit microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| C167CR-LM | Higher CPU speed (up to 40 MHz), 8 KB XRAM, enhanced timer resolution (16-bit vs 16-bit), no I²C but added CAN 2.0B controller. | Required where CAN bus integration is mandatory and higher computational throughput is needed for complex filter banks. | Select when replacing legacy CAN-based drive controllers and additional RAM is required for larger control models. |
| SAB-C161CS-LM | Same core and peripheral set but lacks on-chip XRAM (only 1 KB IRAM), no PLL, fixed 20 MHz max clock, no bootstrap loader. | Suitable for cost-sensitive, non-upgradable embedded modules where external memory and field updates are unnecessary. | Choose only for static-function applications with minimal memory needs and no requirement for dynamic firmware updates. |
Compared with C161PIL25FCAFXUMA1, the C167CR-LM adds CAN and performance at higher cost and power, while the C161CS-LM sacrifices flexibility and upgradeability for lower BOM cost-making the C161PI optimal for balanced cost/performance/field-serviceability trade-offs.
Availability
C161PIL25FCAFXUMA1 is available at Aetrix Electronics and suitable for industrial motor drives, digital power supplies, factory automation I/O modules, and medical diagnostic equipment requiring stable component supply and long-term lifecycle support.
Supply support for C161PIL25FCAFXUMA1 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 AG is a German semiconductor manufacturer specializing in power management, automotive ICs, and industrial microcontrollers, with global R&D and manufacturing infrastructure.
The C161PI belongs to the legacy C166 microcontroller family, designed specifically for deterministic real-time control in cost-sensitive industrial applications where reliability, interrupt responsiveness, and peripheral integration outweigh raw processing speed.
FAQ
What is the maximum operating frequency of the C161PIL25FCAFXUMA1?
The C161PIL25FCAFXUMA1 operates at a maximum CPU clock frequency of 25 MHz, delivering an 80 ns instruction cycle time. Its on-chip PLL supports multiplication ratios from 1.5× to 5× the crystal input, enabling flexible clock tree design while maintaining stable operation within specified voltage and temperature ranges per the 1999 datasheet.
Does the C161PIL25FCAFXUMA1 support in-system programming?
Yes-the device includes an on-chip bootstrap loader accessible via UART (TxD0/RxD0) or I²C interface, allowing firmware updates without external programming hardware. The loader supports checksum verification and secure boot sequences, though it requires pre-configured entry conditions such as specific pin states during reset.
How many analog input channels does the integrated ADC support?
The C161PIL25FCAFXUMA1 integrates a 10-bit successive-approximation ADC with four dedicated analog input channels (AN0–AN3), all mapped to Port 5 pins (P5.0–P5.3). Conversion time is programmable down to 7.8 µs, and the ADC supports both single-shot and continuous scan modes with interrupt-driven completion signaling.
Is the C161PIL25FCAFXUMA1 pin-compatible with other C166-family devices?
No-while functionally aligned with the C166 architecture, the C161PIL25FCAFXUMA1 has a unique 100-pin TQFP/MQFP pinout optimized for its peripheral set. Pin compatibility is not guaranteed with C167 or C164 derivatives due to differences in timer, communication, and memory interface signal assignments, as confirmed by Infineon's 1999 pin configuration diagrams.
C161PIL25FCAFXUMA1 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Infineon Technologies
- Package/Case:
- 100-LQFP
- Series:
- C16xx
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Programmable:
- Not Verified
- Core Processor:
- C166
- Core Size:
- 16-Bit
- Speed:
- 25MHz
- Connectivity:
- EBI/EMI, I2C, SPI, UART/USART
- Peripherals:
- POR, PWM, WDT
- Number of I/O:
- 76
- Program Memory Size:
- -
- Program Memory Type:
- ROMless
- EEPROM Size:
- -
- RAM Size:
- 3K x 8
- Voltage - Supply (Vcc/Vdd):
- 4.5V ~ 5.5V
- Data Converters:
- A/D 4x10b
- Oscillator Type:
- Internal
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
C161PIL25FCAFXUMA1 FAQ
1.How can I place an order for C161PIL25FCAFXUMA1 through Aetrix?
Please submit a Request for Quotation (RFQ) for C161PIL25FCAFXUMA1 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 C161PIL25FCAFXUMA1 reliable?
The price and inventory of C161PIL25FCAFXUMA1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for C161PIL25FCAFXUMA1 is usually 5 days.
3.What payment methods are accepted for C161PIL25FCAFXUMA1?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for C161PIL25FCAFXUMA1 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for C161PIL25FCAFXUMA1?
C161PIL25FCAFXUMA1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your C161PIL25FCAFXUMA1 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 C161PIL25FCAFXUMA1?
For technical support, including C161PIL25FCAFXUMA1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your C161PIL25FCAFXUMA1 requirements.
6.How does Aetrix verify that C161PIL25FCAFXUMA1 is sourced from the original manufacturer or authorized distributors?
All C161PIL25FCAFXUMA1 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 C161PIL25FCAFXUMA1 meets industry standards.
7.What is the process for return or replacement of C161PIL25FCAFXUMA1?
All C161PIL25FCAFXUMA1 units undergo pre-shipment inspection (PSI). If there is an issue with C161PIL25FCAFXUMA1, 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 C161PIL25FCAFXUMA1 part is unused and in its original packaging.
Return procedure for C161PIL25FCAFXUMA1:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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