C161OLMHABXUMA1

Overview

The C161OLMHABXUMA1 is a 16-bit microcontroller from the Infineon C16xx series, utilizing the C166 core processor. It operates at a maximum frequency of 20MHz and features ROMless program memory with 2K x 8 bytes of RAM. The device supports external oscillators and includes peripherals such as POR, PWM, and WDT. Connectivity options include EBI/EMI, SPI, and UART/USART interfaces. It is housed in an 80-QFP package (P-MQFP-80-1) and supports 63 I/O lines. The unit functions within a supply voltage range of 4.5V to 5.5V and operates across a temperature range of -40°C to 85°C.

Feature Summary

• Implements a 16-bit C166 architecture with a four-stage pipeline CPU for efficient instruction processing.
• Provides flexible connectivity through integrated EBI/EMI, SPI, and UART/USART communication interfaces.
• Includes essential hardware peripherals such as Power-On Reset (POR), Pulse Width Modulation (PWM), and Watchdog Timer (WDT).

Applications

• Industrial control systems requiring robust 16-bit processing capabilities
• Automotive electronics applications compatible with C166 architecture standards
• Embedded systems utilizing external memory expansion via EBI/EMI interfaces

Procurement Notes

This component is classified as obsolete and no longer manufactured by Infineon Technologies. Procurement should focus on verifying the authenticity of existing stock from authorized distributors or surplus suppliers. Ensure that any acquired units are tested for functionality, as long-term storage may affect performance. Cross-reference part numbers carefully to avoid counterfeit products, and consider replacement strategies due to end-of-life status.

Selection Notes

Select this microcontroller only if legacy compatibility with the C166 family is strictly required for existing software or hardware designs. Evaluate the 20MHz clock speed and 2K RAM capacity against application demands. Verify that the 80-pin QFP package fits the PCB layout constraints. Consider the absence of internal oscillator and reliance on external components when designing the clock circuitry.

Part Context

The C161OLMHABXUMA1 belongs to the C16xx family of 16-bit microcontrollers designed by Infineon Technologies. This series targets high-performance embedded applications, particularly in automotive and industrial sectors. The specific model variant indicates a ROMless configuration, requiring external code execution or bootloading mechanisms. It represents a mature technology node within the company's historical product portfolio.

Replacement Considerations

• XMC4200F64K256BAXQSA1
• XMC4400F100K512BAXQMA1

FAQ

Does the C161OLMHABXUMA1 have internal program memory?

No, this component is specified as ROMless, meaning it does not contain onboard flash or mask ROM for program storage.

What type of oscillator is supported by this MCU?

The device requires an external oscillator; it does not integrate an internal clock generator.