The C167CRLMHABXUMA2 is a sophisticated 16-bit microcontroller manufactured by Cypress Semiconductor (now part of Infineon Technologies), designed to serve as a powerful embedded processing solution for demanding industrial and automotive applications. This ROMless microcontroller belongs to the renowned C16xx series and operates on the proven C166 core architecture, delivering reliable performance at 25MHz processing speed while maintaining compatibility with external memory systems for flexible program storage solutions.
The device addresses critical design challenges in embedded systems by providing extensive connectivity options including CANbus for automotive networking, SPI and UART/USART for serial communications, and EBI/EMI interfaces for external memory expansion. With 111 I/O pins available in a compact 144-pin MQFP package, engineers can interface with numerous peripheral devices while maintaining signal integrity through the surface-mount design that minimizes parasitic effects and electromagnetic interference.
Key technical specifications include 4KB of internal RAM organized as 4K x 8 configuration, sixteen 10-bit analog-to-digital converter channels for precise sensor interfacing, and integrated peripherals such as Power-On Reset (POR), Pulse Width Modulation (PWM) controllers, and Watchdog Timer (WDT) for enhanced system reliability. The microcontroller operates within a supply voltage range of 4.5V to 5.5V and functions reliably across commercial temperature ranges from 0°C to 70°C, making it suitable for various environmental conditions.
The ROMless architecture provides maximum flexibility by allowing developers to use external memory devices for program storage, enabling cost-effective solutions for different memory requirements and facilitating easy firmware updates. The external oscillator configuration permits precise timing control and frequency selection based on application-specific requirements, while the comprehensive peripheral set reduces the need for additional external components.
Primary advantages include the robust C166 core's proven reliability in industrial applications, extensive I/O capability for complex system integration, multiple communication interfaces supporting various protocols, high-resolution ADC channels for accurate analog signal processing, and the flexibility of external program memory implementation. The device's surface-mount package ensures reliable manufacturing processes and compact PCB layouts essential for modern electronic designs.
This microcontroller demonstrates broad compatibility with standard development tools, programming environments, and debugging systems supporting the C166 architecture, while the tape and reel packaging facilitates automated assembly processes in high-volume manufacturing environments. The device integrates seamlessly with external memory devices, communication modules, and sensor networks through its comprehensive interface options.
Application areas encompass automotive control systems including engine management, transmission control, and body electronics, industrial automation systems requiring real-time processing and multiple sensor interfaces, motor control applications leveraging PWM capabilities, communication gateways utilizing multiple protocol support, and measurement instruments requiring high-resolution analog conversion. The ROMless design particularly suits applications requiring field-upgradeable firmware or multiple software variants.
Equivalent and alternative models within the C16xx series include the C167CRLMCABXUMA2 offering similar functionality with different package options, C167CSLMHABXUMA2 providing enhanced speed variants, and C167SRLMHABXUMA2 featuring modified peripheral configurations. Alternative solutions from other manufacturers include Renesas R8C series microcontrollers such as R8C/3x variants, STMicroelectronics ST10 family devices including ST10F276 and ST10F296, and NXP LPC2000 series ARM-based controllers like LPC2148 and LPC2378, though these alternatives may require software architecture modifications due to different core designs and instruction sets. The Infineon XC16xx series also provides migration paths with enhanced features while maintaining code compatibility, and automotive-qualified variants designated with AEC-Q100 compliance offer extended temperature ranges and enhanced reliability for vehicular applications.
C167CRLMHABXUMA2 Key Technical Attributes
Manufacturer Part Number
C167CRLMHABXUMA2
Main Category
Integrated Circuits (ICs)
C167CRLMHABXUMA2 Packing Size
This product is offered in a P-MQFP-144-8 package, which is a 144-pin thin-profile metric quad flat package, providing a compact and efficient footprint for surface mount technology (SMT) applications. The body material is molded plastic, optimized for thermal management and mechanical reliability. Pin configuration includes 111 programmable I/O pins, ensuring broad connection possibilities for external components. It is distributed in tape & reel (TR) format, ensuring secure and automated assembly line compatibility. The package’s thermal characteristics and electrical insulation are aligned with industry standards for microcontroller power handling, suitable for environments maintaining operational temperatures between 0°C and 70°C.
C167CRLMHABXUMA2 Application
The C167CRLMHABXUMA2 microcontroller is engineered for high-reliability embedded control systems. It’s widely used in industrial automation, automotive subsystems (such as engine or chassis control), networking equipment, and general-purpose embedded system designs. With its versatile connectivity (including CANbus, SPI, UART/USART, and EBI/EMI), it is well-suited for applications requiring robust communication protocols and fast real-time processing.
C167CRLMHABXUMA2 Features
The C167CRLMHABXUMA2 features a high-performance 16-bit core (C166) running at up to 25MHz, complemented by 4K x 8 bytes of internal RAM to support demanding real-time processing. It is a ROMless device, offering developers flexibility in memory configuration depending on application requirements. Key peripherals include Power-On Reset (POR), Pulse Width Modulation (PWM), watchdog timer (WDT), and an extensive range of 16 analog-to-digital converters operating at 10-bit resolution. The microcontroller also integrates external oscillator support, and a versatile array of connectivity options, including CANbus for automotive and industrial field networks, EBI/EMI for memory interfacing, SPI for synchronous serial communications, and multiple UART/USART interfaces. With 111 input/output pins, it supports advanced parallel processing tasks and versatile external device interfacing.
C167CRLMHABXUMA2 Quality and Safety Features
Cypress (Infineon) has designed this product with built-in reliability safeguards, such as an on-chip watchdog timer to prevent system hangs and a Power-On Reset circuit for safe startup. Strict adherence to industry quality benchmarks, such as JEDEC and AEC-Q100, ensures reduced risk of latent failures during operation. The device's package and electrical design provide protection against over-voltage, and it meets ESD standards common to industrial-grade MCUs.
C167CRLMHABXUMA2 Compatibility
The C167CRLMHABXUMA2 is broadly compatible with the C16xx series, enabling drop-in replacement or upgrades for other C166 family MCUs in many designs. It supports 5V supply voltage ranges (4.5V~5.5V), ensuring integration with standard 5V logic systems. The ROMless architecture allows it to work with external program memory, providing developers with wide latitude in memory design. It seamlessly interfaces with common industry protocols and is widely supported by established development ecosystems and toolchains.
C167CRLMHABXUMA2 Datasheet PDF
You can find the most comprehensive and up-to-date datasheet PDF for the C167CRLMHABXUMA2 microcontroller on our website. We strongly recommend that you download the datasheet directly from this page to access all technical specifications, recommended application circuits, and reference designs, ensuring accurate and reliable integration into your project.
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