C167CSLMCAFXQLA2 Equivalent & Substitute Parts

Part Overview

The C167CSLMCAFXQLA2 is a 16-bit C166 microcontroller from Infineon Technologies, featuring a ROMless architecture with 25MHz operation and 111 I/O pins in a 144-pin MQFP package. This device is classified as obsolete, necessitating identification of functionally compatible alternatives for ongoing system support and new designs requiring equivalent embedded processing capabilities.

Substiute Parts

C167CSLMCAFXQLA2

Infineon TechnologiesIn Stock: 1072C167CSLMCAFXQLA2 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 C167CSLMCAFXQLA2. Substitution eligibility is determined by the following allowed parameters:

• 144-pin package footprint compatibility (144-LQFP Exposed Pad vs. 144-BQFP)
• Surface mount mounting type
• Operating temperature range alignment (-40°C ~ 85°C)
• Connectivity feature overlap (CANbus, EBI/EMI, SPI, UART/USART)
• Peripheral feature overlap (POR, PWM, WDT)
• Active product status ensuring ongoing availability and support

The substitute represents a technology advancement from 16-bit to 32-bit architecture with significantly enhanced processing speed, memory capacity, and integrated functionality.

Parameter Comparison

Engineering Selection Recommendations

The XMC4700F144F1536AAXQMA1 is the manufacturer-recommended substitute for the obsolete C167CSLMCAFXQLA2. Selection of this alternative is supported by:

• Active product status ensuring long-term availability and manufacturing support
• ROHS3 compliance certification
• Identical operating temperature range (-40°C ~ 85°C)
• Compatible 144-pin package footprint with surface mount configuration
• Shared connectivity protocols (CANbus, EBI/EMI, SPI, UART/USART)
• Shared peripheral features (POR, WDT)
• Enhanced processing capability and memory resources for forward-compatible system design

Design migration requires evaluation of supply voltage compatibility (4.5V–5.5V vs. 3.13V–3.63V) and software architecture adaptation from C166 to ARM Cortex-M4 instruction set.

Frequently Asked Questions (FAQ)

Q: Why is the C167CSLMCAFXQLA2 being phased out? A: The C167CSLMCAFXQLA2 is classified as obsolete. The XMC4700F144F1536AAXQMA1 is the active, manufacturer-recommended replacement offering enhanced performance and extended product lifecycle support.

Q: Are the package footprints identical? A: Both devices use 144-pin packages suitable for surface mount assembly. The C167CSLMCAFXQLA2 uses 144-BQFP packaging, while the XMC4700F144F1536AAXQMA1 uses 144-LQFP with exposed pad. PCB layout verification is required to confirm mechanical compatibility.

Q: What are the key differences in electrical specifications? A: The substitute operates at 3.13V–3.63V (vs. 4.5V–5.5V), runs at 144MHz (vs. 25MHz), and includes 1.5MB FLASH memory (vs. ROMless architecture). Supply voltage regulation and software architecture changes are necessary for system integration.

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, providing expanded system integration options.

Q: What compliance certifications apply? A: Both devices maintain REACH Unaffected status and identical Moisture Sensitivity Level (MSL 3, 168 Hours). The substitute additionally carries ROHS3 compliance certification.

Q: Is firmware migration required? A: Yes. The C167CSLMCAFXQLA2 uses C166 architecture, while the substitute uses ARM Cortex-M4 instruction set. Complete software porting and validation are required.