Infineon Technologies C167CSLMCAKXUMA2

Overview

C167CSLMCAKXUMA2 from Infineon Technologies is a 16-bit single-chip microcontroller featuring a 4-stage pipeline CPU, 32 KB on-chip mask ROM, 3 KB IRAM, 8 KB XRAM, dual CAN 2.0B interfaces, and a 24-channel 10-bit ADC with 7.8 µs conversion time - deployed in industrial motor control and automotive body electronics systems.

For engineers reviewing the C167CSLMCAKXUMA2 datasheet, C167CSLMCAKXUMA2 pinout, C167CSLMCAKXUMA2 application, or C167CSLMCAKXUMA2 equivalent, key selection criteria include its 40 MHz max operating frequency, dual CAN message object support (30 total), PLL-based clock generation (×1.5 to ×5), and 111 GPIO lines with programmable thresholds - critical for real-time embedded control with deterministic timing and bus redundancy.

Technical Context

The C167CSLMCAKXUMA2 implements the C166 CPU core with register-based architecture, single-cycle context switching, and 16 MByte linear address space. It integrates two independent CAN 2.0B controllers supporting full CAN mode, each with 15 message objects and dedicated transmit/receive buffers.

Its peripheral event controller (PEC) enables interrupt-driven, single-cycle data transfers across 8 channels, while the dual 16-channel capture/compare units and 4-channel PWM unit provide precise timing and waveform generation for motor phase control and power regulation.

Key Specifications

Pinout & Package

Package: 144-pin MQFP (Metric Quad Flat Package), lead-free per RoHS-compliant assembly line introduced in V2.2 revision (2001).

Key Features

Applications

Equivalent & Alternatives

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

Compared with SAK-C167CS-L40M, C167CSLMCAKXUMA2 offers identical functionality in a surface-mount MQFP package optimized for automated assembly; versus C164CI, it delivers 100% more CAN message objects and 100% more on-chip RAM - enabling complex state machines and multi-bus diagnostics in single-chip designs.

Availability

C167CSLMCAKXUMA2 is available at Aetrix Electronics and suitable for industrial motor drive, automotive body control, and programmable logic controller (PLC) I/O modules requiring stable component supply and long-term lifecycle assurance.

Supply support for C167CSLMCAKXUMA2 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 - founded in 1999 as a spin-off from Siemens.

The C167CS series belongs to Infineon's legacy C166 family, designed explicitly for deterministic real-time control in safety-critical embedded systems where CAN bus integration, analog sensing, and high I/O density are mandatory.

FAQ

Does C167CSLMCAKXUMA2 support CAN FD?

No. The C167CSLMCAKXUMA2 implements CAN 2.0B specification only, with bit rates up to 1 Mbps and 29-bit extended identifier support. It lacks the variable bit rate, flexible data field, and CRC enhancements defined in ISO 11898-1:2015 for CAN FD. For CAN FD migration, Infineon's XMC4000 or AURIX TC2xx families are recommended alternatives.

What is the maximum allowed external memory access speed?

The C167CSLMCAKXUMA2 supports external bus cycle times as low as 100 ns (10 MHz) for wait-state-free operation with fast SRAM. When configured with programmable wait states, it can interface with slower devices such as EPROMs or flash memory with access times up to 250 ns - controlled via chip-select timing registers CSxCON and CSxTIM.

Is the on-chip bootstrap loader accessible via CAN?

No. The integrated bootstrap loader supports programming only via UART0 (P3.10/TxD0 and P3.11/RxD0) using Infineon's standard BSL protocol. CAN is not supported as a bootloader interface; firmware updates must be performed through serial connection or external programming hardware targeting the ROM boot vector.

How is the oscillator watchdog implemented?

The oscillator watchdog monitors the main crystal oscillator (XTAL1/XTAL2) and triggers a reset if oscillation stops for longer than 256 clock cycles. It operates independently of the CPU clock domain and remains active in all power-saving modes except Power Down - ensuring fail-safe recovery from crystal failure in unattended systems.