Infineon Technologies C164CILMCAFNUMA2

Overview

C164CILMCAFNUMA2 from Infineon Technologies is a 16-bit single-chip microcontroller in the C166 family, featuring a 4-stage pipeline CPU, on-chip CAN 2.0B interface with 15 message objects, 2 KB IRAM, 2 KB XRAM, and 64 KB mask-programmed ROM. It operates at up to 25 MHz with 5 V supply and targets embedded industrial control systems requiring real-time I/O, PWM generation, and deterministic communication.

For engineers reviewing the C164CILMCAFNUMA2 datasheet, C164CILMCAFNUMA2 pinout, C164CILMCAFNUMA2 application, or C164CILMCAFNUMA2 equivalent, key selection criteria include its full-function CAPCOM6 unit for flexible PWM, integrated CAN controller (not transceiver), 10-bit 8-channel ADC with 7.8 µs conversion time, and support for external bus expansion up to 4 MB.

Technical Context

The C164CILMCAFNUMA2 implements a Harvard-architecture 16-bit CPU with register-based design, single-cycle context switching, and 16 MByte linear address space. Its peripheral event controller (PEC) enables interrupt-driven single-cycle data transfers across 8 channels, decoupling CPU load from high-speed I/O operations.

It integrates a PLL with selectable multiplication factors (1.5× to 5×), oscillator watchdog, programmable watchdog timer, and three power-saving modes (Idle, Sleep, Power Down). The on-chip CAN interface complies with ISO 11898 and supports both Full CAN and Basic CAN operation with 15 dedicated message objects.

Key Specifications

Pinout & Package

Package: 80-pin MQFP (0.65 mm pitch), RoHS-compliant, surface-mountable with thermal pad compatibility for industrial PCB layouts.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar 16-bit microcontroller applications.

Compared with SAK-C164CI-8R25M, C164CILMCAFNUMA2 offers identical functionality but with factory-masked ROM optimized for volume production; versus SAF-C164CI-L25M, it eliminates external memory dependency and reduces board area, making it preferable for cost-sensitive fixed-function deployments.

Availability

C164CILMCAFNUMA2 is available at Aetrix Electronics and suitable for industrial motor control, automotive body electronics, energy metering gateways, and factory automation I/O nodes requiring stable component supply and long-term lifecycle support.

Supply support for C164CILMCAFNUMA2 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 microcontrollers, with global R&D and manufacturing infrastructure.

The C166 family-including the C164CI-was designed for cost-sensitive, high-reliability embedded control applications demanding integrated peripherals, real-time responsiveness, and industrial temperature operation.

FAQ

Does C164CILMCAFNUMA2 include a CAN transceiver?

No. It integrates a CAN protocol controller (Rev. 2.0B) only. An external CAN transceiver such as the TJA1040 or PCA82C251 is required for physical layer signaling on the bus. The controller handles message arbitration, error detection, and object buffering independently.

What is the maximum external memory size supported?

The C164CILMCAFNUMA2 supports up to 4 MBytes of external address space for both code and data. This is achieved using four programmable chip-select signals (CS0–CS3), with configurable wait-state insertion and bus width (8-bit or 16-bit) per region.

Is the on-chip ADC compatible with 3.3 V analog inputs?

No. The ADC reference is tied to VDD (5 V), and input voltage must remain within 0 V to VDD. Applying 3.3 V signals directly is safe, but full-scale resolution corresponds to 5 V. For true 3.3 V system integration, external scaling or rail-to-rail op-amp conditioning is required.

Can the CAPCOM6 unit generate complementary PWM with dead-time control?

Yes. CAPCOM6 supports paired channel operation (e.g., CC60/CC61) with programmable dead-time insertion between rising/falling edges. This is implemented in hardware via the CC6POS registers and requires no CPU intervention during runtime.