Equivalent & Substitute Parts for C167CSLMCAKXQLA2

Part Overview

The C167CSLMCAKXQLA2 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 equivalent alternatives for new designs and ongoing system support.

Key Parameters

Parameter	C167CSLMCAKXQLA2
Manufacturer	Infineon Technologies
Core Processor	C166
Core Size	16-Bit
Speed	25MHz
Package / Case	144-BQFP
Number of I/O	111
Program Memory Type	ROMless
RAM Size	11K x 8
Voltage - Supply (Vcc/Vdd)	4.5V ~ 5.5V
Operating Temperature	-40°C ~ 125°C (TA)
Connectivity	CANbus, EBI/EMI, SPI, UART/USART
Peripherals	POR, PWM, WDT
Product Status	Obsolete
Mounting Type	Surface Mount

Substitute Part Grouping Explanation

Substitution for the C167CSLMCAKXQLA2 is based on the following criteria derived from the provided parameters:

Primary Substitution Criteria:

Manufacturer: Infineon Technologies (maintained for design continuity and support)
Package / Case: 144-pin form factor (physical compatibility)
Operating Temperature Range: -40°C ~ 125°C (environmental compatibility)
Mounting Type: Surface Mount (assembly compatibility)
Connectivity: CANbus, SPI, UART/USART support (functional overlap)
Peripherals: PWM, WDT, POR (core functionality preservation)

Substitute Parts Identified:

XMC4500F144K1024ACXQMA1
XMC4700F144K2048AAXQMA1

Both substitutes are from Infineon's XMC4000 series, maintaining manufacturer continuity while providing active product status and enhanced capabilities within the same physical package footprint.

Parameter Comparison

Parameter	C167CSLMCAKXQLA2	XMC4500F144K1024ACXQMA1	XMC4700F144K2048AAXQMA1
Manufacturer	Infineon Technologies	Infineon Technologies	Infineon Technologies
Package / Case	144-BQFP	144-LQFP Exposed Pad	144-LQFP Exposed Pad
Core Size	16-Bit	32-Bit Single-Core	32-Bit Single-Core
Speed	25MHz	120MHz	144MHz
Number of I/O	111	91	119
RAM Size	11K x 8	160K x 8	352K x 8
Voltage - Supply (Vcc/Vdd)	4.5V ~ 5.5V	3.13V ~ 3.63V	3.13V ~ 3.63V
Operating Temperature	-40°C ~ 125°C (TA)	-40°C ~ 125°C (TA)	-40°C ~ 125°C (TA)
Connectivity	CANbus, EBI/EMI, SPI, UART/USART	CANbus, EBI/EMI, Ethernet, I2C, LINbus, SPI, UART, USB	CANbus, EBI/EMI, Ethernet, I2C, LINbus, MMC/SD, SPI, UART/USART, USB OTG, USIC
Peripherals	POR, PWM, WDT	DMA, I2S, LED, POR, PWM, WDT	DMA, I2S, LED, POR, Touch-Sense, WDT
Product Status	Obsolete	Active	Active
RoHS Status	Not specified	ROHS3 Compliant	ROHS3 Compliant
Mounting Type	Surface Mount	Surface Mount	Surface Mount

Engineering Selection Recommendations

XMC4500F144K1024ACXQMA1 is suitable for applications requiring:

Moderate performance upgrade (120MHz vs. 25MHz)
Reduced I/O count tolerance (91 vs. 111 pins)
Lower supply voltage operation (3.13V ~ 3.63V)
Active product status with ROHS3 compliance
Enhanced connectivity including Ethernet and USB

XMC4700F144K2048AAXQMA1 is suitable for applications requiring:

Maximum performance within the 144-pin package (144MHz)
Higher I/O pin count (119 vs. 111 pins)
Significantly expanded memory resources (2MB FLASH, 352K RAM)
Lower supply voltage operation (3.13V ~ 3.63V)
Active product status with ROHS3 compliance
Extended connectivity including MMC/SD and USB OTG

Both substitutes provide active product status, eliminating obsolescence risk associated with the C167CSLMCAKXQLA2.

Frequently Asked Questions (FAQ)

Q: Can the XMC4500F144K1024ACXQMA1 or XMC4700F144K2048AAXQMA1 directly replace the C167CSLMCAKXQLA2 in existing designs?

A: Physical package compatibility exists (144-pin form factor), and both substitutes maintain Infineon manufacturer continuity. However, architectural differences (16-bit to 32-bit core transition, supply voltage range change from 4.5V~5.5V to 3.13V~3.63V) require design review and potential firmware adaptation.

Q: What are the key differences in I/O pin availability?

A: The C167CSLMCAKXQLA2 provides 111 I/O pins. The XMC4500F144K1024ACXQMA1 provides 91 I/O pins, while the XMC4700F144K2048AAXQMA1 provides 119 I/O pins. Pin mapping and functionality must be verified against specific application requirements.

Q: How do supply voltage requirements differ?

A: The C167CSLMCAKXQLA2 operates at 4.5V ~ 5.5V, while both XMC4000 series substitutes operate at 3.13V ~ 3.63V. Power supply redesign is necessary for substitution.

Q: Are both substitutes suitable for industrial temperature applications?

A: Yes. All three devices support the -40°C ~ 125°C operating temperature range, maintaining thermal compatibility for industrial applications.

Q: What connectivity enhancements do the substitutes provide?

A: The C167CSLMCAKXQLA2 supports CANbus, EBI/EMI, SPI, and UART/USART. The XMC4500F144K1024ACXQMA1 adds Ethernet, I2C, LINbus, and USB. The XMC4700F144K2048AAXQMA1 further adds MMC/SD, USB OTG, and USIC, providing significantly expanded communication options.

Q: Which substitute should be selected for new designs?

A: The XMC4700F144K2048AAXQMA1 is recommended for new designs due to active product status, higher I/O count matching the original device, superior performance (144MHz), and expanded memory resources (2MB FLASH, 352K RAM).

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