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Infineon Technologies C161PILFCABXUMA1
- Part No.:
- C161PILFCABXUMA1
- Manufacturer:
- Infineon Technologies
- Category:
- Microcontrollers
- Package:
- 100-LQFP
- Datasheet:
-
C161PILFCABXUMA1.pdf
- Description:
- IC MCU 16BIT ROMLESS 100TQFP
- Quantity:
- Payment:
- Shipping:
Inventory:3,499
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Product details
Overview
C161PILFCABXUMA1 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 ADC (7.8 µs conversion), I²C interface (400 kHz), and on-chip PLL clock generation (1:1.5 to 1:5). It serves as a cost-optimized control unit for industrial motor drives and embedded automation systems requiring deterministic real-time response.
For engineers reviewing the C161PILFCABXUMA1 datasheet, C161PILFCABXUMA1 pinout, C161PILFCABXUMA1 application, or C161PILFCABXUMA1 equivalent, key selection criteria include its 100-pin TQFP package, 16 MByte linear address space, 27-source interrupt system with 40 ns sample rate, and dual serial channels supporting synchronous/asynchronous and high-speed synchronous modes.
Technical Context
The C161PILFCABXUMA1 implements a register-based 16-bit CPU architecture with single-cycle context switching, multiple variable register banks, and enhanced Boolean bit manipulation instructions optimized for HLL and RTOS support. Its peripheral event controller (PEC) enables interrupt-driven, single-cycle data transfers across eight channels.
On-chip clock generation uses a programmable PLL with selectable division ratios (1:1.5/2/2.5/3/4/5), prescaler, or direct external clock input. The 10-bit ADC supports programmable conversion time down to 7.8 µs and shares pins with Port 5, which functions as a 6-bit Schmitt-trigger input port with analog channel multiplexing (AN0–AN3).
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| CPU Core | 16-bit C166-compatible core 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 position updates and PWM synchronization. |
| ADC Resolution | 10-bit SAR ADC with 7.8 µs minimum conversion time; supports fast current sensing in motor control applications. |
| I²C Interface | Two-channel I²C bus (10-bit addressing, 400 kHz); enables communication with temperature sensors, EEPROMs, and digital potentiometers. |
| Interrupt System | 27 interrupt sources with 16 priority levels and 40 ns minimum sample rate; allows sub-microsecond response to fault events. |
| Memory Map | 16 MByte linear address space; supports up to 8 MByte external code/data memory with five programmable chip-select signals. |
| Package | 100-pin TQFP (14 × 14 mm, 0.5 mm pitch); provides 76 general-purpose I/O lines with selectable input thresholds and hysteresis. |
Pinout & Package
Package: 100-pin TQFP (14 × 14 mm, 0.5 mm pitch), RoHS-compliant, lead-free (LF), industrial temperature range (–40 °C to +85 °C).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| P5.0 / AN0 | Analog Input Channel 0 | Dedicated Schmitt-trigger input pin shared with 10-bit ADC; used for voltage feedback in closed-loop power supply regulation. |
| P3.10 / TxD0 | UART Transmit Data Output | Asynchronous serial output for host diagnostics or configuration via RS-232/RS-485 transceivers. |
| P3.0 / SCL0 | I²C Clock Output | Open-drain clock line for primary I²C bus; drives external sensors with 400 kHz maximum frequency. |
| XTAL1 | Oscillator Input | CMOS input to internal oscillator amplifier; accepts 1–25 MHz crystal or external clock source. |
| RSTIN | Reset Input | Active-low asynchronous reset pin; initiates hardware reset sequence including register initialization and boot loader entry. |
| EA | External Access Enable | Controls internal/external program memory mapping; low = external code fetch enabled for expansion beyond on-chip ROM. |
Key Features
| Feature | Design Value |
|---|---|
| Single-Cycle Context Switching | Enables RTOS task switching in ≤1 µs, critical for multi-threaded motion control firmware. |
| Peripheral Event Controller (PEC) | 8-channel DMA-like transfer engine triggered by timer/ADC/interrupt events; eliminates CPU overhead for sensor data buffering. |
| Programmable Watchdog Timer | Configurable timeout period with independent oscillator watchdog; prevents lockup during EMI-induced software faults. |
| Real-Time Clock (RTC) | On-chip calendar clock with battery-backup capability; maintains time-of-day during power-down modes. |
| Flexible External Bus | Supports multiplexed/demultiplexed 8-/16-bit data buses and programmable wait states per address range; simplifies interfacing with legacy SRAM/Flash. |
Applications
| Industrial Motor Control | Power Supply Monitoring |
|---|---|
|
Use Scenario: Closed-loop speed and torque control of 3-phase BLDC motors in HVAC blowers and industrial pumps. IC Role / Device Role / Timing Role: Real-time execution of FOC algorithms, PWM generation, and ADC-sampled current/voltage feedback at 20 kHz loop rate. Use Value: Deterministic 80 ns instruction cycle and 40 ns interrupt sampling ensure jitter-free commutation timing and overcurrent fault response within 1 µs. |
Use Scenario: Digital monitoring and protection of AC/DC switch-mode power supplies in telecom rectifiers. IC Role / Device Role / Timing Role: Simultaneous acquisition of 4 analog inputs (Vin, Vout, Iout, temp), I²C sensor polling, and fault logging to external EEPROM. Use Value: Integrated 10-bit ADC with 7.8 µs conversion and PEC-driven data transfer enable full 4-channel sampling every 50 µs without CPU intervention. |
| Embedded Automation Controller | Industrial Communication Gateway |
|
Use Scenario: Standalone PLC module for factory floor I/O control with analog inputs, digital outputs, and local logic execution. IC Role / Device Role / Timing Role: Central processing unit managing 76 GPIOs, two UARTs, I²C peripherals, and real-time scheduling of ladder logic scans. Use Value: 16 MByte linear address space and five programmable chip-selects allow seamless integration of 2 MB Flash, 512 KB SRAM, and isolated CAN transceiver memory-mapped registers. |
Use Scenario: Protocol translation between Modbus RTU (RS-485) and I²C sensor networks in building management systems. IC Role / Device Role / Timing Role: Dual-serial-channel bridge: one UART handles Modbus master/slave, the other manages I²C sensor discovery and polling. Use Value: Hardware-assisted UART framing and I²C arbitration reduce firmware complexity and eliminate timing-critical bit-banging in protocol stacks. |
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 performance (10 MIPS), 8 KByte XRAM, enhanced CAN interface (not present in C161PI); larger die size and higher power consumption. | Targeted at automotive body control modules requiring CAN FD compliance and extended temperature range (–40 °C to +125 °C). | Select when CAN bus integration and >8 MIPS throughput are mandatory; not drop-in compatible due to pinout and peripheral register differences. |
| SAB-C161CS-LM | Same C166 core but lacks on-chip PLL, I²C interface, and RTC; reduced peripheral set and no PEC; identical 100-pin TQFP footprint. | Used in cost-constrained consumer appliances where only basic timer/UART/ADC functionality is required. | Valid pin-compatible replacement if PLL, I²C, and RTC are unused; requires firmware modification to disable unsupported peripherals. |
Compared with C167CR-LM and SAB-C161CS-LM, the C161PILFCABXUMA1 delivers optimal balance of integrated peripherals (I²C, RTC, PEC), deterministic real-time latency (40 ns interrupt sampling), and industrial-grade packaging-making it uniquely suited for cost-sensitive yet feature-rich embedded controllers where CAN is unnecessary.
Availability
C161PILFCABXUMA1 is available at Aetrix Electronics and suitable for industrial motor control, power supply monitoring, and embedded automation requiring stable component supply, long-term lifecycle support, and RoHS-compliant manufacturing.
Supply support for C161PILFCABXUMA1 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 electronics, and industrial control ICs, with global R&D and manufacturing infrastructure.
The C161PI belongs to the legacy C166 microcontroller family, designed specifically for deterministic real-time embedded control in cost-sensitive industrial applications-prioritizing peripheral integration, low-latency interrupt handling, and flexible memory expansion over raw computational throughput.
FAQ
What is the maximum operating frequency of the C161PILFCABXUMA1 CPU core?
The C161PILFCABXUMA1 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 does not support frequencies above 25 MHz per the 1999 datasheet specifications.
Does the C161PILFCABXUMA1 support CAN bus communication?
No, the C161PILFCABXUMA1 does not include a CAN controller or physical layer interface. Its serial peripherals consist of two UARTs (one with high-speed synchronous mode) and an I²C interface. CAN functionality requires external transceivers and software-implemented protocol stacks, which are not supported by on-chip hardware resources.
How many analog input channels does the on-chip ADC support?
The C161PILFCABXUMA1 integrates a single 10-bit successive-approximation ADC with four dedicated analog input channels: AN0 through AN3, mapped to P5.0–P5.3. These pins are shared with Port 5, a 6-bit Schmitt-trigger input port, and cannot be used simultaneously for digital I/O and analog acquisition.
Is the C161PILFCABXUMA1 pin-compatible with other C166-family microcontrollers?
The C161PILFCABXUMA1 uses a 100-pin TQFP package with a unique pinout defined in Infineon's 1999 datasheet. While it shares the same package outline as some C167 derivatives, signal assignments (e.g., PEC, I²C, PLL pins) differ significantly. Pin compatibility is limited to the SAB-C161CS-LM variant, which omits several peripherals but retains identical pin mapping for core functions.
C161PILFCABXUMA1 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):
- 4.5V ~ 5.5V
- Data Converters:
- A/D 4x10b
- Oscillator Type:
- Internal
- Operating Temperature:
- 0°C ~ 70°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
C161PILFCABXUMA1 FAQ
1.How can I place an order for C161PILFCABXUMA1 through Aetrix?
Please submit a Request for Quotation (RFQ) for C161PILFCABXUMA1 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 C161PILFCABXUMA1 reliable?
The price and inventory of C161PILFCABXUMA1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for C161PILFCABXUMA1 is usually 5 days.
3.What payment methods are accepted for C161PILFCABXUMA1?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for C161PILFCABXUMA1 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for C161PILFCABXUMA1?
C161PILFCABXUMA1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your C161PILFCABXUMA1 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 C161PILFCABXUMA1?
For technical support, including C161PILFCABXUMA1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your C161PILFCABXUMA1 requirements.
6.How does Aetrix verify that C161PILFCABXUMA1 is sourced from the original manufacturer or authorized distributors?
All C161PILFCABXUMA1 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 C161PILFCABXUMA1 meets industry standards.
7.What is the process for return or replacement of C161PILFCABXUMA1?
All C161PILFCABXUMA1 units undergo pre-shipment inspection (PSI). If there is an issue with C161PILFCABXUMA1, 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 C161PILFCABXUMA1 part is unused and in its original packaging.
Return procedure for C161PILFCABXUMA1:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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