C167CSL16M3VCAFXQLA1

Product Overview

The Infineon Technologies C167CSL16M3VCAFXQLA1 is a 16-bit microcontroller from the C16xx series, centered on a C166 core and specified for 16 MHz operation. The device uses a ROMless program memory architecture, provides 11K x 8 RAM, and exposes 111 I/O pins in a 144-BQFP P-MQFP-144-8 surface-mount package. It operates from a 4.5V to 5.5V supply over a -40°C to 85°C ambient range and requires an external oscillator. Communication and control features include CANbus, EBI/EMI, SPI, SSC, and UART/USART interfaces, with 24 x 10-bit A/D converters, power-on reset, PWM, and watchdog timer support.

Key Features

• C166 core with 16-bit architecture and 16 MHz operating speed.
• ROMless program memory architecture with 11K x 8 RAM.
• 111 I/O pins in a 144-BQFP P-MQFP-144-8 surface-mount package.
• CANbus, EBI/EMI, SPI, SSC, and UART/USART interfaces.
• 24 x 10-bit A/D converters for analog input.
• Power-on reset, PWM, and watchdog timer peripherals.
• 4.5V to 5.5V supply range and -40°C to 85°C ambient operating range.

Applications

• Embedded control modules that use CANbus communication for device networking.
• Motor or actuator control subsystems requiring PWM outputs and watchdog protection.
• Mixed-signal acquisition units using multiple 10-bit analog inputs.
• Control boards that combine EBI/EMI with serial links such as SPI, SSC, or UART/USART.

Design & Procurement Notes

Design planning should consider the ROMless program memory architecture when defining program memory organization. The external oscillator requirement needs a suitable crystal or oscillator circuit, and the 144-BQFP surface-mount package requires an appropriate land pattern and assembly process. Supply and thermal design should account for the 4.5V to 5.5V operating range and the -40°C to 85°C ambient range. Early mapping of the 111 I/O pins, analog channels, and communication interfaces helps confirm that the peripheral set matches the board architecture.