Infineon Technologies C161JCLFCAKXQMA1

Overview

C161JCLFCAKXQMA1 from Infineon Technologies is a 16-bit ROMless microcontroller based on the C166 architecture, featuring 128-pin TQFP packaging, 16 kB RAM, 32-channel PWM, and integrated CAN 2.0B controller. It serves as a real-time control unit in industrial motor drives requiring deterministic timing and multi-axis coordination.

For engineers reviewing the C161JCLFCAKXQMA1 datasheet, C161JCLFCAKXQMA1 pinout, C161JCLFCAKXQMA1 application, or C161JCLFCAKXQMA1 equivalent, key selection criteria include on-chip debug support, CAN message object handling capability, PWM dead-time insertion resolution, and external bus interface timing compliance for parallel memory expansion.

Technical Context

This MCU implements the C166 V2 core with 25 MHz maximum CPU clock, supports external program memory via 16-bit address/data multiplexed bus, and integrates a peripheral event controller (PEC) for autonomous DMA-like peripheral chaining without CPU intervention.

The on-chip CAN controller supports 32 message objects with configurable acceptance filtering, programmable bit timing up to 1 Mbps, and hardware timestamping synchronized to the system clock domain.

Key Specifications

Pinout & Package

128-pin TQFP (Thin Quad Flat Package), 14 mm × 14 mm body, 0.4 mm lead pitch, exposed thermal pad (EPAD) connected to VSS.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar 16-bit real-time control applications.

Compared with C161JCLFCAKXQMA1, the C167CR-LM trades external memory flexibility for larger embedded code space, while the ST10F276 sacrifices CAN 2.0B compliance and autonomous peripheral management - making the C161JCLFCAKXQMA1 optimal for scalable, CAN-based distributed motor control architectures.

Availability

C161JCLFCAKXQMA1 is available at Aetrix Electronics and suitable for industrial motor drives, automated assembly systems, and power converter control requiring stable component supply across long-lifecycle production programs.

Supply support for C161JCLFCAKXQMA1 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 for deterministic real-time control in industrial automation, focusing on integrated peripherals, low-latency interrupt response, and robust CAN communication for distributed machine control.

FAQ

What boot configuration does C161JCLFCAKXQMA1 require?

The C161JCLFCAKXQMA1 boots exclusively from external memory. EA/BS pin must be held low, and the external bus interface initializes with A0–A15/D0–D15 mapped to Port 0. No internal ROM means external Flash or EPROM is mandatory for program storage and execution.

Does this MCU support CAN FD?

No. The integrated CAN controller complies strictly with ISO 11898-1:2003 (CAN 2.0B), supporting only standard and extended frames up to 1 Mbps. It lacks CAN FD features such as flexible data rate, bit rate switching, or payload lengths beyond 8 bytes.

How is the Peripheral Event Controller (PEC) configured?

The PEC is programmed via dedicated SFRs (PECxCON, PECxSRC, PECxDAT) to define trigger sources (e.g., PWM period match, ADC conversion complete), destination registers (e.g., PWM duty register, CAN transmit buffer), and transfer size. Up to 16 PEC channels can operate concurrently without CPU involvement.

What thermal management provisions exist for the 128TQFP package?

The package includes an exposed thermal pad (EPAD) electrically connected to VSS. For reliable operation above 60°C ambient, the EPAD must be soldered to a minimum 200 mm² copper pour on the PCB's inner ground plane using ≥4 thermal vias (0.3 mm diameter) spaced evenly beneath the pad.