Infineon Technologies C167CSL40MCAKXUMA2

Overview

C167CSL40MCAKXUMA2 from Infineon Technologies is a 16-bit single-chip microcontroller with 32 KB on-chip mask ROM, 40 MHz maximum CPU clock, dual CAN 2.0B interfaces (30 message objects), 24-channel 10-bit ADC (7.8 µs conversion), and 111 GPIO lines. It integrates PLL-based clock generation, PEC-driven DMA, and real-time clock for industrial control and automotive body electronics.

For engineers reviewing the C167CSL40MCAKXUMA2 datasheet, C167CSL40MCAKXUMA2 pinout, C167CSL40MCAKXUMA2 application, or C167CSL40MCAKXUMA2 equivalent, key selection criteria include CAN object count, 40 MHz timing compliance, MQFP-144 package footprint, IRAM/XRAM memory map, and bootstrap loader support for field firmware updates.

Technical Context

The C167CSL40MCAKXUMA2 implements a 4-stage pipelined C166-compatible CPU core delivering 20 MIPS at 40 MHz, with 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 without CPU intervention.

Dual CAN controllers operate independently per ISO 11898 Rev. 2.0B, supporting full CAN mode with 15 message objects each or shared bus operation with 30 total objects. The on-chip PLL supports multiplication factors of 1.5× to 5× for flexible clock synthesis from external crystal or oscillator inputs.

Key Specifications

Pinout & Package

Package: MQFP-144 (Metric Quad Flat Package, 20 × 20 mm body, 0.5 mm lead pitch).

Key Features

Applications

Equivalent & Alternatives

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

Compared with SAB-C167CS-L40M, C167CSL40MCAKXUMA2 offers identical functionality in tray packaging for prototyping and low-volume builds; versus SAK-C167CS-4R40M, it trades integrated ROM for flexibility in field-programmable firmware updates via bootstrap loader.

Availability

C167CSL40MCAKXUMA2 is available at Aetrix Electronics and suitable for automotive body electronics, industrial PLC I/O modules, motor drive gateways, and smart energy metering systems requiring stable component supply over extended product lifecycles.

Supply support for C167CSL40MCAKXUMA2 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 manufacturing and R&D centers.

The C167CS family was designed for high-integrity embedded control in automotive and industrial environments, emphasizing real-time responsiveness, peripheral integration, and long-term supply stability.

FAQ

What is the maximum operating temperature range for C167CSL40MCAKXUMA2?

The C167CSL40MCAKXUMA2 is rated for industrial temperature range: –40 °C to +85 °C. This specification is confirmed in Infineon's official ordering information and applies to all C167CS-L40M derivatives in MQFP-144 package. Thermal derating is not required within this range under specified supply voltage and load conditions.

Does C167CSL40MCAKXUMA2 support JTAG debugging?

No, the C167CSL40MCAKXUMA2 does not include JTAG interface. Debugging is supported via Infineon's OCDS (On-Chip Debug Support) using dedicated pins (NMI, RSTIN, and specific port lines) with compatible emulators like DAS5000. This requires external debug adapter hardware and is distinct from IEEE 1149.1 JTAG.

Can the on-chip PLL be bypassed to use an external clock source directly?

Yes, the C167CSL40MCAKXUMA2 supports direct clock input mode: XTAL1 accepts external CMOS-level clock signal (1–40 MHz) while XTAL2 is left unconnected. In this configuration, the PLL is disabled, and the input clock drives the CPU core and peripherals without multiplication or division.

Is the 32 KB mask ROM field-programmable?

No, the 32 KB mask ROM is factory-programmed during wafer fabrication and cannot be modified after delivery. Firmware updates require external memory or use of the on-chip bootstrap loader with external flash, as the ROM contents are immutable and read-only during normal operation.