Infineon Technologies C167CSLMCABXQLA2

Overview

C167CSLMCABXQLA2 from Infineon Technologies is a 16-bit single-chip microcontroller with integrated CAN 2.0B interfaces, 32 KB mask ROM, 3 KB IRAM, and 8 KB XRAM. It operates at up to 40 MHz CPU clock (25 ns instruction cycle), features dual 10-bit ADCs (24 channels), two 16-channel capture/compare units, and supports real-time control in automotive body electronics and industrial motion systems.

For engineers reviewing the C167CSLMCABXQLA2 datasheet, C167CSLMCABXQLA2 pinout, C167CSLMCABXQLA2 application, or C167CSLMCABXQLA2 equivalent, key selection criteria include CAN 2.0B dual-interface timing compliance, 40 MHz maximum operation with PLL clock generation, 111 GPIO lines with programmable thresholds, and bootstrap loader support for field firmware updates.

Technical Context

The C167CSLMCABXQLA2 implements a 4-stage pipelined 16-bit CPU core derived from the C166 family, delivering up to 20 MIPS at 40 MHz. Its peripheral event controller (PEC) enables single-cycle data transfers across 8 channels, synchronized to timer or external events.

It integrates two independent CAN 2.0B controllers with 15 message objects each (30 total when sharing one bus), supporting full CAN and Basic CAN modes. The on-chip PLL provides selectable multiplication factors (1.5× to 5×) for flexible clock synthesis from crystal or external sources.

Key Specifications

Pinout & Package

Package: 144-pin MQFP (Metric Quad Flat Package), lead-free compliant per RoHS requirements at time of production.

Key Features

Applications

Equivalent & Alternatives

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

Compared with SAB-C167CS-L40M, C167CSLMCABXQLA2 offers guaranteed factory-programmed firmware and higher security against unauthorized modification; versus SAK-C167CS-4R40M, it shares identical functionality but ships in different packaging format affecting assembly line feed mechanism.

Availability

C167CSLMCABXQLA2 is available at Aetrix Electronics and suitable for automotive body electronics, industrial motor drives, and building automation systems requiring stable component supply and long-term lifecycle support.

Supply support for C167CSLMCABXQLA2 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 C167CS series belongs to Infineon's legacy C166-family 16-bit microcontroller line, designed specifically for deterministic real-time control in automotive and industrial applications requiring integrated CAN, high-speed ADC, and robust I/O.

FAQ

Does C167CSLMCABXQLA2 support CAN FD?

No. The C167CSLMCABXQLA2 implements Controller Area Network Revision 2.0B only, supporting standard 11-bit identifiers and up to 8-byte payloads per frame. It does not include CAN FD features such as bit-rate switching or extended data length. CAN FD capability was introduced in later Infineon families like the XC2000 and Aurix series.

What is the function of the P1H and P1L port groups?

P1H (pins P1H.0–P1H.7) and P1L (P1L.0–P1L.7) form a 16-bit address bus segment (A8–A15 and A0–A7 respectively), used during external memory access. They also serve as analog input channels AN16–AN23, enabling multiplexed use for memory expansion or sensor interfacing depending on system configuration.

Is the on-chip PLL required for operation?

No. The C167CSLMCABXQLA2 supports three clock sources: direct external clock input, crystal oscillator (XTAL1/XTAL2), or PLL-synthesized clock. The PLL is optional and configurable via register settings; operation at 25 MHz or 33 MHz can use direct crystal drive without PLL activation.

How is the bootstrap loader accessed?

The bootstrap loader is activated by holding P3.10 (TxD0) low during reset. It then listens for serial commands on P3.11 (RxD0) at 9600 baud, 8N1, enabling firmware upload via UART without external programming hardware. The loader resides in on-chip ROM and cannot be overwritten.