C167CSLMCAKXUMA2 Equivalent & Substitute Parts

Part Overview

The C167CSLMCAKXUMA2 is a 16-bit ROMless microcontroller from Infineon Technologies' C16xx series, operating at 25MHz with external oscillator support. This device is classified as obsolete, making equivalent or substitute parts necessary for new designs, legacy system updates, or when inventory becomes unavailable. The part features CANbus connectivity, 111 I/O pins, and is housed in a 144-pin MQFP package suitable for embedded control applications requiring moderate processing capability and external program memory configuration.

Substiute Parts

C167CSLMCAKXUMA2

Infineon TechnologiesIn Stock: 760C167CSLMCAKXUMA2 Datasheet

Current PartRFQ

XMC4700F144F1536AAXQMA1

Infineon TechnologiesIn Stock: 1085XMC4700F144F1536AAXQMA1 Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

The XMC4700F144F1536AAXQMA1 is identified as a manufacturer-recommended substitute for the C167CSLMCAKXUMA2. Substitution eligibility is determined by the following criteria:

Allowed Substitution Parameters:

• Package compatibility: Both devices use 144-pin surface mount packages (144-BQFP vs. 144-LQFP Exposed Pad), maintaining identical pin count and footprint compatibility
• Connectivity preservation: Both support CANbus, EBI/EMI, SPI, and UART/USART interfaces
• Peripheral feature overlap: Both include POR and WDT functionality
• Operating temperature range: The substitute supports -40°C ~ 85°C, which covers the lower portion of the original device's range
• Voltage supply compatibility: The substitute operates at 3.13V ~ 3.63V, requiring voltage regulation considerations for systems designed for 4.5V ~ 5.5V operation
• Mounting type: Both are surface mount devices

Key Differences Requiring Design Consideration:

• Core architecture: 16-bit C166 processor vs. 32-bit ARM Cortex-M4
• Operating frequency: 25MHz vs. 144MHz
• Program memory: ROMless vs. 1.5MB FLASH
• RAM capacity: 11K x 8 vs. 276K x 8
• Data converter capability: A/D 24x10b vs. A/D 32x12b and D/A 2x12b

Parameter Comparison

Engineering Selection Recommendations

The XMC4700F144F1536AAXQMA1 is an active product from Infineon Technologies, providing long-term availability and supply chain stability compared to the obsolete C167CSLMCAKXUMA2. Both devices maintain identical moisture sensitivity levels and are REACH Unaffected.

Selection of the XMC4700F144F1536AAXQMA1 as a substitute requires evaluation of the following design factors:

• Voltage regulation: Systems designed for 4.5V ~ 5.5V operation must incorporate voltage regulation to supply the substitute device at 3.13V ~ 3.63V
• Thermal operating range: Applications requiring operation above 85°C (TA) cannot use this substitute
• Software compatibility: The shift from 16-bit C166 architecture to 32-bit ARM Cortex-M4 requires firmware porting and recompilation
• Package footprint: While both use 144-pin packages, the transition from BQFP to LQFP with exposed pad requires PCB layout verification for thermal and electrical performance

The substitute provides enhanced processing capability (144MHz vs. 25MHz), expanded memory resources (1.5MB FLASH and 276K RAM vs. ROMless with 11K RAM), and additional connectivity options (Ethernet, USB OTG, I2C, LINbus, MMC/SD) suitable for applications requiring higher integration and performance.

Frequently Asked Questions (FAQ)

Q: Can the XMC4700F144F1536AAXQMA1 directly replace the C167CSLMCAKXUMA2 without PCB modifications?

A: The 144-pin package footprint is compatible, but PCB layout modifications are required. The XMC4700 uses LQFP with exposed pad instead of BQFP, necessitating thermal via placement verification. Additionally, voltage supply circuitry must be redesigned to provide 3.13V ~ 3.63V instead of 4.5V ~ 5.5V.

Q: What are the key electrical compatibility considerations?

A: The primary electrical difference is supply voltage. The C167CSLMCAKXUMA2 operates at 4.5V ~ 5.5V, while the XMC4700F144F1536AAXQMA1 requires 3.13V ~ 3.63V. I/O voltage levels and signal integrity must be re-evaluated for the lower voltage domain. Both devices support CANbus, SPI, and UART/USART interfaces, but the substitute offers additional connectivity options.

Q: Are there thermal operating range limitations?

A: Yes. The C167CSLMCAKXUMA2 operates from -40°C to 125°C (TA), while the XMC4700F144F1536AAXQMA1 operates from -40°C to 85°C (TA). Applications requiring operation above 85°C cannot use this substitute.

Q: What firmware changes are necessary?

A: Complete firmware porting is required. The C167CSLMCAKXUMA2 uses a 16-bit C166 processor, while the XMC4700F144F1536AAXQMA1 uses a 32-bit ARM Cortex-M4 architecture. Existing C166 assembly or C code must be recompiled and validated for the ARM platform.

Q: How do memory configurations differ?

A: The C167CSLMCAKXUMA2 is ROMless with 11K x 8 RAM, requiring external program memory. The XMC4700F144F1536AAXQMA1 includes 1.5MB internal FLASH and 276K x 8 RAM, eliminating the need for external program memory and providing significantly greater storage capacity.

Q: Are both devices REACH compliant?

A: Yes. Both the C167CSLMCAKXUMA2 and XMC4700F144F1536AAXQMA1 are REACH Unaffected, meeting regulatory requirements for European markets.