Infineon Technologies C167CSLMCAFXQLA2

Overview

C167CSLMCAFXQLA2 from Infineon Technologies is a 16-bit single-chip microcontroller featuring a 4-stage pipeline CPU, dual CAN 2.0B interfaces (30 message objects), 32 KB on-chip mask ROM, 3 KB IRAM, and 8 KB XRAM. It operates at up to 40 MHz with 25 ns instruction cycle time and integrates a 24-channel 10-bit ADC (7.8 µs conversion), two 16-channel capture/compare units, and programmable watchdog. Used in industrial motion control systems requiring deterministic real-time I/O and dual-bus CAN redundancy.

For engineers reviewing the C167CSLMCAFXQLA2 datasheet, C167CSLMCAFXQLA2 pinout, C167CSLMCAFXQLA2 application, or C167CSLMCAFXQLA2 equivalent, key selection criteria include its dual-CAN Rev. 2.0B support with full CAN message object arbitration, 144-pin MQFP package with 111 GPIO lines, PLL-based clock generation (×1.5–×5), and bootstrap loader for field firmware updates - all critical for automotive body control and industrial PLC designs.

Technical Context

The C167CSLMCAFXQLA2 implements the C166 architecture with register-based design, single-cycle context switching, and 16 MB linear address space. Its peripheral event controller (PEC) enables interrupt-driven, single-cycle data transfers across eight channels, reducing CPU overhead in high-throughput sensor acquisition.

Two independent CAN controllers operate simultaneously on one bus using shared message RAM (30 objects), supporting both Full CAN and Basic CAN modes. The on-chip PLL supports multiplication factors of 1.5, 2, 2.5, 3, 4, and 5, enabling precise clock derivation from low-frequency crystals while maintaining 40 MHz core operation.

Key Specifications

Pinout & Package

Package: 144-pin MQFP (Metric Quad Flat Package), 20 × 20 mm body, 0.5 mm lead pitch, JEDEC MS-026AC compliant.

Key Features

Applications

Equivalent & Alternatives

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

Compared with SAK-C167CS-4R40M (identical functionality) and C167CR-LM (reduced performance and peripheral set), the C167CSLMCAFXQLA2 delivers verified dual-CAN 2.0B throughput, 40 MHz deterministic execution, and PEC-accelerated data movement - making it the only option among the three qualified for safety-critical industrial motion control.

Availability

C167CSLMCAFXQLA2 is available at Aetrix Electronics and suitable for industrial motor drives, automotive body control modules, and programmable logic controllers requiring stable component supply and long-term lifecycle support.

Supply support for C167CSLMCAFXQLA2 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 C167CS family was designed for high-reliability embedded control in automotive and industrial environments, emphasizing real-time determinism, integrated communication (CAN), and robust peripheral integration to minimize system-level BOM.

FAQ

Does C167CSLMCAFXQLA2 support CAN FD?

No. The C167CSLMCAFXQLA2 implements CAN 2.0B (ISO 11898-1:1993) only, with fixed 11-bit identifiers and 8-byte payload per frame. It lacks the bit-rate switching, extended identifier (29-bit), and larger payload features defined in CAN FD (ISO 11898-1:2015). Systems requiring CAN FD must use newer Infineon families such as the AURIX TC3xx series.

What is the maximum operating temperature range for this part?

The C167CSLMCAFXQLA2 is rated for industrial temperature range: –40 °C to +85 °C ambient. This is confirmed by Infineon's ordering code suffix "I" (e.g., "...I..." in full part number), and validated in the V2.2 datasheet Section 7.1 under "Limiting Values." It is not qualified for automotive AEC-Q100 Grade 1 (–40 °C to +125 °C).

Is external memory required to run typical applications?

No. With 32 KB on-chip mask ROM, 3 KB IRAM, and 8 KB XRAM, the C167CSLMCAFXQLA2 supports self-contained operation for most real-time control applications. External memory is optional and only needed for large data buffers (e.g., waveform storage) or firmware updates beyond ROM capacity - enabled via its programmable external bus interface with five chip-selects.

How is the PLL configured at power-on?

At reset, the PLL is disabled and bypassed; the CPU runs directly from the crystal oscillator input (XTAL1). PLL activation requires explicit software configuration of the PLLCON register (address 0xF000E), followed by waiting for the LOCK bit to assert. Default multiplication factor is 1×; valid settings are ×1.5, ×2, ×2.5, ×3, ×4, or ×5 - selected via PLLMUL bits per Section 5.3.1 of the datasheet.