The C167CRLMHAFXQLA2 from Cypress Semiconductor (now part of Infineon Technologies) is a sophisticated 16-bit ROMless microcontroller designed to address complex embedded system challenges where external memory flexibility and high-performance processing are essential. This integrated circuit belongs to the renowned C16xx series and operates on the powerful C166 core processor, delivering robust computational capabilities at 25MHz for demanding industrial and automotive applications.
This microcontroller tackles critical design challenges by offering a ROMless architecture, allowing engineers to implement custom external program memory configurations tailored to specific application requirements, providing exceptional flexibility for code updates and system scalability. The device integrates 4K x 8 RAM for efficient data handling and features an extensive array of 111 I/O pins in a compact 144-pin P-MQFP (Plastic Metric Quad Flat Pack) surface mount package, enabling comprehensive peripheral interfacing while maintaining a manageable board footprint. Operating reliably across an industrial temperature range of -40°C to 85°C with a supply voltage of 4.5V to 5.5V, this microcontroller ensures stable performance in harsh environmental conditions.
Key specifications include comprehensive connectivity options featuring CANbus for automotive and industrial networking, EBI/EMI for external memory interfacing, SPI and UART/USART for serial communications, making it ideal for multi-protocol system integration. The integrated 16-channel 10-bit analog-to-digital converter enables precise sensor signal acquisition, while built-in peripherals including Power-On Reset (POR), Pulse Width Modulation (PWM) for motor control and power management, and Watchdog Timer (WDT) for system reliability enhance overall functionality. The external oscillator type provides designers with frequency selection flexibility to optimize power consumption and performance trade-offs.
Primary advantages include the ROMless design enabling cost-effective prototyping and field upgrades, extensive I/O capability supporting complex system architectures, robust communication protocols for industrial networking, and integrated analog conversion eliminating external ADC requirements. This microcontroller finds extensive application in automotive control systems, industrial automation equipment, motor control applications, building management systems, medical instrumentation, and communication infrastructure where reliable 16-bit processing with flexible memory architecture is paramount. Available in tray packaging with 3300 units, it's well-suited for volume production environments. Equivalent and alternative models within the C16xx family include the C167CR with integrated ROM, C167CS variants with different memory configurations, and similar 16-bit microcontrollers from the Infineon XC16x series, as well as competitive alternatives from manufacturers like STMicroelectronics' ST10 family and NXP's 80C51 extended architecture controllers offering comparable performance characteristics.
C167CRLMHAFXQLA2 (1)
C167CRLMHAFXQLA2 Key Technical Attributes
C166 Core, 16-bit CPU
111 I/O, 25MHz Speed
4K x 8 RAM, ROMless Memory
C167CRLMHAFXQLA2 Packing Size
Type: Tray, suitable for automated handling
Material: Antistatic tray, ideal for safe transport and storage
Size: P-MQFP-144-8; 144-pin Metric Quad Flat Package (MQFP)
Pin Configuration: 144-BQFP, high pin-density for extended functionality
Thermal Characteristics: Supports operating temperature range from -40°C to 85°C (TA), ensuring reliable operation in industrial environments
Electrical Properties: Supply voltage range from 4.5V to 5.5V, low power consumption suitable for embedded applications
C167CRLMHAFXQLA2 Application
C167CRLMHAFXQLA2 is extensively used in automotive control units, industrial automation, and embedded control systems requiring high real-time performance. Its powerful CANbus and multiple serial interfaces make it ideal for advanced communications and networked embedded solutions.
C167CRLMHAFXQLA2 Features
The IC MCU 16BIT ROMLESS 144MQFP integrates a 16-bit C166 core processor with 25MHz clock speed, offering robust computational throughput. The device provides 111 general-purpose I/Os, advanced connectivity options including CANbus, UART/USART, SPI, and EBI/EMI. Integrated peripherals such as Power-On Reset (POR), Pulse Width Modulation (PWM), and Watchdog Timer (WDT) add essential system and timing functions. The ROMless architecture enables customized external program memory mapping and flexibility in system design. Additionally, the embedded 16-channel 10-bit A/D converter supports precise signal acquisition for sensor-rich applications. Surface mount design ensures easy integration onto PCBs in high-density embedded applications.
C167CRLMHAFXQLA2 Quality and Safety Features
Built for dependable operation across a wide temperature range (-40°C to 85°C), the device ensures stability in harsh environments. It supports full ESD and latch-up immunity standards, vital for industrial and automotive deployments. The high pin-count package design guarantees robust mechanical reliability, while advanced internal timers and protection features such as WDT prevent system failures and enhance safety.
C167CRLMHAFXQLA2 Compatibility
As part of the C16xx series, the C167CRLMHAFXQLA2 maintains full compatibility with other products in the C166 family, ensuring smooth migration and hardware reuse. It interfaces seamlessly with various sensor arrays, external memory modules, and standard embedded communication protocols in automotive and automation ecosystems.
C167CRLMHAFXQLA2 Datasheet PDF
For the most authoritative and up-to-date technical documentation, we recommend downloading the official datasheet for the C167CRLMHAFXQLA2 directly from our website. This comprehensive guide contains all necessary electrical and performance details needed to support your design and application requirements.
Quality Distributor
IC-Components is a premium official distributor of Cypress Semiconductor (now part of Infineon Technologies), specializing in the highest quality integrated circuit solutions. We invite you to request a quote now on our website and benefit from our outstanding customer service, genuine inventory, and value-added support for your project needs.
