C167CRLMHAFXQLA2 Equivalent & Substitute Parts

Part Overview

The C167CRLMHAFXQLA2 is a 16-bit ROMless microcontroller from Infineon Technologies' C16xx series, operating at 25MHz with external oscillator support. This device is classified as obsolete and has been superseded in Infineon's product portfolio. Given its discontinued status, identifying functionally compatible alternatives is essential for system redesign, production continuation, and long-term supply chain management.

Substiute Parts

C167CRLMHAFXQLA2

Infineon TechnologiesIn Stock: 3301C167CRLMHAFXQLA2 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 C167CRLMHAFXQLA2. Substitution eligibility is determined by the following criteria:

Allowed Substitution Parameters:

• Identical or higher core processing capability
• Equal or greater memory capacity (RAM and program storage)
• Matching or expanded I/O count
• Compatible or enhanced connectivity options
• Same or lower voltage supply range (backward compatible)
• Identical or improved operating temperature range
• Same or compatible package footprint with equivalent pin count
• Active product status preferred for long-term availability

The XMC4700F144F1536AAXQMA1 meets these criteria through its 32-bit ARM Cortex-M4 architecture, significantly higher clock speed (144MHz), expanded memory (1.5MB FLASH, 276K RAM), enhanced connectivity suite, and active product status. The 144-pin package maintains form-factor compatibility with the original design.

Parameter Comparison

Engineering Selection Recommendations

The XMC4700F144F1536AAXQMA1 is the manufacturer-recommended substitute for the obsolete C167CRLMHAFXQLA2. Selection of this alternative is supported by:

• Product Status: The substitute maintains active product status, ensuring long-term availability and supply chain continuity.
• Regulatory Compliance: Both devices maintain REACH Unaffected status and equivalent moisture sensitivity ratings (MSL 3).
• Certifications: The XMC4700F144F1536AAXQMA1 carries RoHS3 compliance, meeting current environmental standards.
• Pin Count Compatibility: Both devices utilize 144-pin packages, enabling direct PCB layout reuse with minimal redesign.
• Operating Temperature Range: Identical temperature specifications (-40°C to 85°C) ensure thermal compatibility in existing applications.

Design migration requires evaluation of voltage supply requirements, as the substitute operates at 3.13V–3.63V versus the original 4.5V–5.5V specification. Power supply redesign and level-shifting considerations may be necessary for legacy systems.

Frequently Asked Questions (FAQ)

Q: Can the XMC4700F144F1536AAXQMA1 directly replace the C167CRLMHAFXQLA2 without PCB modifications?

A: The 144-pin package footprint is compatible, enabling direct socket replacement. However, voltage supply requirements differ (3.13V–3.63V versus 4.5V–5.5V), necessitating power supply circuit modifications. Signal level compatibility must be verified for interfacing with legacy 5V logic.

Q: What are the key differences in memory architecture?

A: The C167CRLMHAFXQLA2 is ROMless with 4K RAM. The XMC4700F144F1536AAXQMA1 provides 1.5MB FLASH program memory and 276K RAM, enabling significantly larger application code and data storage without external memory dependencies.

Q: Are the connectivity interfaces compatible?

A: Both devices support CANbus, EBI/EMI, SPI, and UART/USART. The substitute adds Ethernet, I2C, LINbus, MMC/SD, USB OTG, and USIC interfaces. Existing peripheral connections remain functional; additional interfaces are available for system enhancement.

Q: What is the impact of the 25MHz to 144MHz speed increase?

A: The substitute operates at 5.76× the original clock speed, enabling faster code execution and improved real-time responsiveness. Firmware timing-dependent code requires validation and potential adjustment to maintain intended behavior.

Q: Are there data converter differences?

A: The original device includes 16-channel 10-bit analog-to-digital conversion. The substitute provides 32-channel 12-bit A/D and 2-channel 12-bit D/A conversion, offering enhanced analog signal processing capability.

Q: What is the moisture sensitivity level for both devices?

A: Both devices are rated MSL 3 (168 Hours), indicating identical moisture handling and storage requirements during manufacturing and assembly processes.