Infineon Technologies C167CSL16M3VCAFXUMA2

Overview

C167CSL16M3VCAFXUMA2 from Infineon Technologies is a low-power 16-bit single-chip microcontroller featuring a 16 MHz CPU clock, dual CAN 2.0B interfaces (30 message objects), 24-channel 10-bit ADC (7.8 µs conversion), and 144-pin MQFP package. It integrates 3 KB IRAM, 8 KB XRAM, PLL-based clock generation, and real-time clock for embedded control in automotive body electronics and industrial motion systems.

For engineers reviewing the C167CSL16M3VCAFXUMA2 datasheet, C167CSL16M3VCAFXUMA2 pinout, C167CSL16M3VCAFXUMA2 application, or C167CSL16M3VCAFXUMA2 equivalent, key selection criteria include CAN bus coexistence capability, on-chip PEC-driven DMA latency (single-cycle), programmable sleep modes, and 111 GPIO with selectable input thresholds - all confirmed in the 2001 Infineon datasheet.

Technical Context

The C167CSL16M3VCAFXUMA2 implements a 4-stage pipelined 16-bit CPU delivering up to 8 MIPS at 16 MHz, with hardware support for 16×16 multiplication (625 ns) and 32/16 division (1250 ns). Its interrupt system provides 56 sources across 16 priority levels and 62 ns minimum sample rate.

Peripheral integration includes two independent CAN controllers compliant with ISO 11898-1 Rev. 2.0B, each supporting 15 message objects; a 24-channel 10-bit ADC with configurable conversion time down to 7.8 µs; and two 16-channel capture/compare units with PWM output capability. The on-chip PLL supports multiplication factors of 1.5× to 5×.

Key Specifications

Pinout & Package

Package: 144-pin MQFP (Metric Quad Flat Package), lead pitch 0.5 mm, body size 20 × 20 mm, RoHS-compliant per Infineon documentation.

Key Features

Applications

Equivalent & Alternatives

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

Compared with C167CSL16M3VCAFXUMA2, the C167CS-L16M3V offers identical functionality with standardized ordering nomenclature, while SAB-C167CS-L16M3V trades programmability for lower unit cost in fixed-firmware applications - critical for lifecycle planning in industrial OEM programs.

Availability

C167CSL16M3VCAFXUMA2 is available at Aetrix Electronics and suitable for automotive body electronics, industrial motor drives, energy metering gateways, and building automation controllers requiring stable component supply across extended product lifecycles.

Supply support for C167CSL16M3VCAFXUMA2 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/C167 family was designed for real-time embedded control in automotive and industrial environments, emphasizing deterministic timing, integrated peripherals, and robustness under electrical stress and temperature variation.

FAQ

What is the maximum operating temperature range for C167CSL16M3VCAFXUMA2?

The C167CSL16M3VCAFXUMA2 is rated for industrial temperature range: –40 °C to +85 °C. This specification is confirmed in Table 1 of the 2001 Infineon datasheet, which lists the "L" suffix variant as low-power industrial grade. No extended or automotive-grade version is documented for this specific ordering code.

Does C167CSL16M3VCAFXUMA2 support in-system programming (ISP)?

No, C167CSL16M3VCAFXUMA2 does not include on-chip flash memory and therefore lacks ISP capability. It relies on external program memory or mask-ROM variants. The device features an on-chip bootstrap loader for downloading code via UART or CAN after power-on, but requires external non-volatile storage for persistent firmware.

How many CAN message objects are accessible simultaneously in dual-CAN mode?

In dual-CAN mode, C167CSL16M3VCAFXUMA2 supports up to 30 message objects total - 15 per CAN controller - with shared access to one physical bus. This configuration allows concurrent transmission/reception of messages from two independent CAN protocols or node groups without hardware arbitration conflict.

Is the on-chip RTC battery-backed, and what is its accuracy?

The on-chip RTC operates from a separate V_BAT supply pin and retains time/date during main power loss. Accuracy depends on external 32.768 kHz crystal; typical drift is ±20 ppm over –20 °C to +70 °C, as specified in the C167CS-3V datasheet section 3.4. No internal RC oscillator is provided for RTC.