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Infineon Technologies C161PILF3VCAFXUMA1
- Part No.:
- C161PILF3VCAFXUMA1
- Manufacturer:
- Infineon Technologies
- Category:
- Microcontrollers
- Package:
- 100-LQFP
- Datasheet:
-
C161PILF3VCAFXUMA1.pdf
- Description:
- IC MCU 16BIT ROMLESS 100TQFP
- Quantity:
- Payment:
- Shipping:
Inventory:3,488
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Product details
Overview
C161PILF3VCAFXUMA1 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 4-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 cost-optimized embedded controller for industrial motor control and sensor-based automation systems.
For engineers reviewing the C161PILF3VCAFXUMA1 datasheet, C161PILF3VCAFXUMA1 pinout, C161PILF3VCAFXUMA1 application, or C161PILF3VCAFXUMA1 equivalent, key selection criteria include its 100-pin TQFP package, 16-priority interrupt system with 27 sources, single-cycle PEC data transfer, programmable watchdog and real-time clock, and support for multiplexed/demultiplexed 8/16-bit external buses up to 8 MB.
Technical Context
The C161PILF3VCAFXUMA1 implements a high-performance 16-bit CPU core with register-based architecture, multiple variable register banks, and single-cycle context switching-enabling deterministic real-time task handling. Its peripheral set includes two multi-functional timer units (5 timers total), dual serial channels (asynchronous/synchronous/high-speed synchronous), and an I²C bus interface with two multiplexed channels.
On-chip clock generation uses a configurable PLL with selectable division ratios (1:1.5, 2, 2.5, 3, 4, 5), prescaler, or direct external clock input. Memory mapping supports 16 MB linear address space (code/data) and up to 8 MB external space with five programmable chip-select signals, flexible bus width (8/16-bit), and demultiplexed/multiplexed bus modes.
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 real-time control loops. |
| Instruction Cycle | 80 ns at 25 MHz CPU clock; ensures tight timing margins for servo feedback and PWM synchronization. |
| ADC Resolution | 10-bit, 4-channel with programmable conversion time down to 7.8 µs; supports fast analog sensing in motor current/voltage monitoring. |
| Interrupt System | 16-priority-level with 27 sources and 40 ns sample rate; allows sub-microsecond response to critical events like overcurrent or encoder zero-crossing. |
| I²C Interface | Two-channel (multiplexed), 10-bit addressing, 400 kHz operation; enables communication with temperature sensors, EEPROMs, and digital potentiometers. |
| External Bus | Programmable 8/16-bit multiplexed or demultiplexed bus; supports interfacing with external Flash, SRAM, or FPGA co-processors up to 8 MB address space. |
| Package | 100-pin TQFP (LF variant); RoHS-compliant, surface-mount compatible with standard reflow profiles. |
Pinout & Package
Package: 100-pin Low-Profile Quad Flat Package (TQFP), 14 mm × 14 mm, 0.5 mm pitch, lead-free (LF).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| P5.0 / AN0 | Analog Input Channel 0 | Dedicated Schmitt-trigger input for ADC; used for precision voltage sensing without external signal conditioning. |
| P3.0 / SCL0 | I²C Clock Line 0 | Open-drain output with internal pull-up; drives bidirectional clock for primary I²C slave communication. |
| P3.1 / SDA0 | I²C Data Line 0 | Open-drain bidirectional data line; shares pin with secondary I²C channel via multiplexing control. |
| P3.15 / CLKOUT / FOUT | Programmable Clock Output | Provides externally accessible PLL-derived clock or free-running oscillator output for trace/debug or peripheral sync. |
| XTAL1 / XTAL2 | Crystal Oscillator Inputs | Drive internal CMOS oscillator amplifier; supports 1–25 MHz crystal or external clock source at XTAL1. |
| RSTIN / RSTOUT | Reset Input / Output | Asynchronous reset input with internal debounce; RSTOUT provides synchronized reset pulse for external peripherals. |
Key Features
| Feature | Design Value |
|---|---|
| Single-Cycle Context Switching | Enables <1 µs RTOS task switching-critical for hard real-time scheduling in motion control firmware. |
| Peripheral Event Controller (PEC) | 8-channel, interrupt-driven DMA-like transfers; offloads CPU during ADC sampling or serial buffer handling. |
| Programmable Watchdog + Oscillator Watchdog | Dual independent watchdogs prevent lockup from software faults or crystal failure-essential for unattended industrial nodes. |
| Real-Time Clock (RTC) | On-chip calendar clock with battery-backup support; maintains time across power cycles without external components. |
| Flexible External Bus Interface | Five independent chip-selects with per-range wait-state and bus-width configuration; simplifies mixed-memory-system design. |
Applications
| Industrial Motor Drive | Smart Sensor Node |
|---|---|
|
Use Scenario: Closed-loop control of 3-phase BLDC motors in HVAC blowers and pump systems. IC Role / Device Role / Timing Role: Primary motion controller executing FOC algorithms, PWM generation, and current sampling via integrated ADC. Use Value: On-chip 10-bit ADC with 7.8 µs conversion and PEC enables precise current reconstruction without external converters or DMA controllers. |
Use Scenario: Battery-powered environmental monitor aggregating temperature, humidity, and pressure data. IC Role / Device Role / Timing Role: System-on-chip host managing sensor I²C reads, RTC-timestamped logging, and low-power sleep/wake cycles. Use Value: Integrated RTC and programmable idle/power-down modes extend battery life beyond 2 years in field-deployed nodes. |
| Programmable Logic Controller (PLC) I/O Module | Automated Test Equipment (ATE) Front-End |
|
Use Scenario: Modular digital I/O expansion unit with isolated inputs/outputs and diagnostics. IC Role / Device Role / Timing Role: Local intelligence unit handling input debouncing, output pattern generation, and CAN/I²C gateway functions. Use Value: 76 GPIO lines with selectable hysteresis and threshold levels simplify direct connection to industrial 24 V DC sensors and actuators. |
Use Scenario: Signal conditioning and timing capture module for benchtop test instrumentation. IC Role / Device Role / Timing Role: High-speed data acquisition controller synchronizing ADC samples, timestamping events, and buffering results. Use Value: 40 ns interrupt sample rate and single-cycle PEC transfers ensure accurate capture of transient fault waveforms in power electronics testing. |
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 clock speed (40 MHz), 8 KB IRAM, enhanced timer resolution, but no on-chip RTC or I²C. | Better suited for compute-intensive tasks like FFT-based vibration analysis; lacks integrated RTC for time-stamped logging. | Select when raw processing throughput outweighs need for integrated timekeeping or sensor bus interfaces. |
| SAB-C161CS-LM | Same core and peripheral set, but mask-ROM based (no bootstrap loader), no XRAM, and limited ADC channels (2 vs. 4). | Targeted at high-volume, fixed-function applications where firmware is immutable and memory footprint is constrained. | Choose only for cost-sensitive, production-locked designs requiring no field updates or extended analog monitoring. |
Compared with C161PILF3VCAFXUMA1, the C167CR-LM offers higher performance but sacrifices integrated timing and sensor interface features, while the C161CS-LM reduces flexibility and scalability for minimal BOM cost-making the C161PI the balanced choice for upgradable, sensor-rich embedded controllers.
Availability
C161PILF3VCAFXUMA1 is available at Aetrix Electronics and suitable for industrial motor drive, smart sensor node, and PLC I/O module applications requiring stable component supply and long-term lifecycle support.
Supply support for C161PILF3VCAFXUMA1 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 C166 family-including the C161PI-was designed for cost-effective, high-integration embedded control in industrial automation, motor drives, and sensor fusion systems where real-time determinism and peripheral richness are essential.
FAQ
What is the maximum operating frequency of the C161PILF3VCAFXUMA1 CPU core?
The C161PILF3VCAFXUMA1 CPU operates at up to 25 MHz, delivering an 80 ns instruction cycle time. This frequency is achieved using the on-chip PLL configured for 1:1.5 or higher multiplication of a 16.67 MHz crystal, or directly from an external 25 MHz clock applied to XTAL1. The core sustains 8 million instructions per second under typical conditions.
Does the C161PILF3VCAFXUMA1 support in-system programming (ISP)?
No-the C161PILF3VCAFXUMA1 does not support ISP. It includes an on-chip bootstrap loader that enables firmware updates via UART (P3.10/P3.11) after initial programming, but requires external programming hardware (e.g., Infineon's DAS500 emulator or compatible tool) for first-time flash or ROM loading. Mask-ROM variants like C161CS do not support any field updates.
How many independent I²C channels does the C161PILF3VCAFXUMA1 provide?
The C161PILF3VCAFXUMA1 implements one physical I²C interface with two logical channels (SCL0/SDA0 and SCL1/SDA1) multiplexed onto shared pins (P3.0/P3.1 and P6.6/P6.5). Channel selection is controlled by internal register bits, allowing software-switched access to two separate I²C buses-e.g., one for local sensors and another for system-level communication.
What is the function of the FOUT signal on pin P3.15?
Pin P3.15 serves dual function as CLKOUT (programmable clock output) and FOUT (free-running oscillator output). When enabled, FOUT outputs the unprocessed crystal oscillator signal (XTAL1 frequency), useful for debugging clock tree integrity or driving external logic. CLKOUT mode outputs the PLL-divided or prescaled system clock, configurable via the CKCON register.
C161PILF3VCAFXUMA1 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:
- 20MHz
- 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):
- 3V ~ 3.6V
- Data Converters:
- A/D 4x10b
- Oscillator Type:
- Internal
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
C161PILF3VCAFXUMA1 FAQ
1.How can I place an order for C161PILF3VCAFXUMA1 through Aetrix?
Please submit a Request for Quotation (RFQ) for C161PILF3VCAFXUMA1 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 C161PILF3VCAFXUMA1 reliable?
The price and inventory of C161PILF3VCAFXUMA1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for C161PILF3VCAFXUMA1 is usually 5 days.
3.What payment methods are accepted for C161PILF3VCAFXUMA1?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for C161PILF3VCAFXUMA1 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for C161PILF3VCAFXUMA1?
C161PILF3VCAFXUMA1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your C161PILF3VCAFXUMA1 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 C161PILF3VCAFXUMA1?
For technical support, including C161PILF3VCAFXUMA1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your C161PILF3VCAFXUMA1 requirements.
6.How does Aetrix verify that C161PILF3VCAFXUMA1 is sourced from the original manufacturer or authorized distributors?
All C161PILF3VCAFXUMA1 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 C161PILF3VCAFXUMA1 meets industry standards.
7.What is the process for return or replacement of C161PILF3VCAFXUMA1?
All C161PILF3VCAFXUMA1 units undergo pre-shipment inspection (PSI). If there is an issue with C161PILF3VCAFXUMA1, 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 C161PILF3VCAFXUMA1 part is unused and in its original packaging.
Return procedure for C161PILF3VCAFXUMA1:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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