The C167CRL33MHAKXQLA2 from Cypress Semiconductor (now part of Infineon Technologies) is a sophisticated 16-bit microcontroller designed for embedded applications requiring robust performance and extensive peripheral integration. This ROMless MCU belongs to the renowned C16xx series and addresses critical design challenges in industrial control systems, automotive electronics, and complex embedded applications where external memory flexibility and high I/O density are essential.
At its core, this microcontroller features the powerful C166 processor operating at 33MHz, providing substantial computational capability for real-time control applications. The device incorporates 4K x 8 RAM for data storage and processing, while its ROMless architecture allows designers to implement custom external program memory solutions, offering maximum flexibility for application-specific code storage requirements and enabling easy firmware updates or multi-variant product designs. The chip comes in a compact P-MQFP-144-8 package (144-BQFP) with surface mount technology, providing an impressive 112 I/O pins that facilitate extensive interfacing capabilities for complex system designs.
The microcontroller excels in connectivity options, featuring integrated CANbus for automotive and industrial networking, EBI/EMI for external memory and peripheral expansion, SPI for high-speed serial communication, and UART/USART for standard serial interfaces. This comprehensive connectivity suite makes it ideal for applications requiring multi-protocol communication. The device includes essential peripherals such as Power-On Reset (POR) for reliable startup, Pulse Width Modulation (PWM) for motor control and power management, and a Watchdog Timer (WDT) for system reliability. Additionally, it incorporates 16 channels of 10-bit analog-to-digital conversion, enabling precise sensor interfacing and signal acquisition across multiple inputs simultaneously.
Operating across an industrial temperature range of -40°C to 125°C with a supply voltage of 4.5V to 5.5V, this microcontroller demonstrates exceptional environmental resilience suitable for harsh operating conditions. The external oscillator type provides designers with frequency selection flexibility to optimize power consumption and performance trade-offs. With 2538 units available in tray packaging, this component is well-suited for medium to high-volume production runs in automotive engine management systems, industrial automation controllers, motor drive applications, building automation, and sophisticated instrumentation where the combination of processing power, extensive I/O, and flexible memory architecture is paramount.
Equivalent and alternative models within the C16xx family include the C167CR series variants with different speed grades and memory configurations, the C167CS with integrated ROM/Flash options, and other C166-core based microcontrollers from Infineon's XC16x family that offer similar architectural features with varying peripheral sets and package options for designers seeking pin-compatible or functionally similar solutions.
C167CRL33MHAKXQLA2 (1)
C167CRL33MHAKXQLA2 Key Technical Attributes
16-bit C166 core, 33MHz speed, 4K x 8 RAM, ROMless architecture, 112 I/O lines
C167CRL33MHAKXQLA2 Packing Size
P-MQFP-144-8
Tray packaging
Surface mount, 144-pin configuration
C167CRL33MHAKXQLA2 Application
The C167CRL33MHAKXQLA2 microcontroller is ideally suited for embedded control applications requiring real-time performance and extensive connectivity. It can be utilized in industrial automation, automotive electronics, communication systems, and other environments demanding reliable processing and diverse interface options.
C167CRL33MHAKXQLA2 Features
This microcontroller features a robust 16-bit C166 processor running at up to 33MHz, providing enhanced computational efficiency and fast instruction execution. With 4K x 8 RAM for data storage and a ROMless design, developers can tailor program memory to specific application needs. The device includes a rich set of peripherals such as Power-On Reset (POR), Pulse Width Modulation (PWM), and Watchdog Timer (WDT) for system integrity and control functions. Integrated connectivity interfaces like CANbus, External Bus Interface/External Memory Interface (EBI/EMI), Serial Peripheral Interface (SPI), and Universal Asynchronous/Synchronous Receiver Transmitter (UART/USART) assure seamless communication with other devices. High precision is supported by 16-channel 10-bit analog-to-digital (A/D) converters. The device operates from a 4.5V to 5.5V supply and supports external oscillators, providing flexibility in clock design.
C167CRL33MHAKXQLA2 Quality and Safety Features
The extended operating temperature range from -40°C to 125°C makes the C167CRL33MHAKXQLA2 suitable for both industrial and automotive applications under harsh environmental conditions. Integrated Watchdog Timer (WDT) ensures system reliability by recovering from processor malfunctions. Power-On Reset (POR) protects against abnormal startup scenarios, safeguarding system integrity. The thorough qualifications and robust architecture of Infineon’s MCUs are recognized for high reliability and consistent performance in safety-critical domains.
C167CRL33MHAKXQLA2 Compatibility
This MCU is compatible with the C16xx series and supports development environments, tools, and programming protocols tailored for the Infineon C166 core family. The 144-pin P-MQFP package enables straightforward integration into standard embedded processing circuits, facilitating upgrades and replacements within existing systems designed around similar footprint and pinout.
C167CRL33MHAKXQLA2 Datasheet PDF
For comprehensive technical details, block diagrams, performance benchmarks, and electrical characteristics of the C167CRL33MHAKXQLA2, our website provides the most authoritative datasheet available for this product model. We highly recommend customers download the official datasheet directly from our current product page for the latest and most accurate information.
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