C167CRLMHAKXQLA2 Equivalent & Substitute Parts

Part Overview

The C167CRLMHAKXQLA2 is a 16-bit C166 microcontroller from Infineon Technologies, featuring a ROMless architecture with 4K x 8 RAM and external oscillator support. This device operates at 25MHz with integrated CANbus, SPI, and UART connectivity. The product is classified as obsolete, necessitating identification of functionally equivalent alternatives for ongoing system support and new designs.

Key Parameters

Parameter	C167CRLMHAKXQLA2
Manufacturer	Infineon Technologies
Core Processor	C166
Core Size	16-Bit
Speed	25MHz
Program Memory Type	ROMless
RAM Size	4K x 8
Voltage Supply (Vcc/Vdd)	4.5V ~ 5.5V
Package / Case	144-BQFP
Connectivity	CANbus, EBI/EMI, SPI, UART/USART
Operating Temperature	-40°C ~ 125°C (TA)
Product Status	Obsolete
Mounting Type	Surface Mount

Substitute Part Grouping Explanation

Substitution of the C167CRLMHAKXQLA2 is based on the following criteria derived from the provided parameters:

Allowed Substitution Parameters:

Manufacturer: Infineon Technologies (maintained)
Package / Case: 144-pin form factor (144-BQFP or 144-LQFP Exposed Pad acceptable)
Mounting Type: Surface Mount (maintained)
Operating Temperature Range: -40°C ~ 125°C (TA) (maintained or exceeded)
Connectivity: Must include CANbus, SPI, and UART/USART
Voltage Supply: Compatible with 3.13V ~ 3.63V or higher supply ranges

Substitute Parts Identified:

XMC4500F144K1024ACXQMA1
XMC4700F144K2048AAXQMA1

Both substitutes are from Infineon's XMC4000 series, maintaining the 144-pin package footprint and surface mount configuration. These parts feature active product status, enhanced processing capability, and expanded memory architecture suitable for legacy C166 applications requiring modernization.

Parameter Comparison

Parameter	C167CRLMHAKXQLA2	XMC4500F144K1024ACXQMA1	XMC4700F144K2048AAXQMA1
Manufacturer	Infineon Technologies	Infineon Technologies	Infineon Technologies
Core Processor	C166	ARM® Cortex®-M4	ARM® Cortex®-M4
Core Size	16-Bit	32-Bit Single-Core	32-Bit Single-Core
Speed	25MHz	120MHz	144MHz
Package / Case	144-BQFP	144-LQFP Exposed Pad	144-LQFP Exposed Pad
Mounting Type	Surface Mount	Surface Mount	Surface Mount
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
Operating Temperature	-40°C ~ 125°C (TA)	-40°C ~ 125°C (TA)	-40°C ~ 125°C (TA)
Voltage Supply (Vcc/Vdd)	4.5V ~ 5.5V	3.13V ~ 3.63V	3.13V ~ 3.63V
Product Status	Obsolete	Active	Active
Moisture Sensitivity Level (MSL)	3 (168 Hours)	3 (168 Hours)	3 (168 Hours)
REACH Status	REACH Unaffected	REACH Unaffected	REACH Unaffected

Engineering Selection Recommendations

XMC4500F144K1024ACXQMA1 is suitable for applications requiring direct pin-compatible replacement with moderate memory expansion. This device provides 1MB FLASH memory, 160K x 8 RAM, and 120MHz operation. Active product status ensures long-term availability and support. RoHS3 compliance and REACH unaffected status align with current regulatory requirements.

XMC4700F144K2048AAXQMA1 is recommended for applications demanding maximum performance and memory capacity within the 144-pin package constraint. This device delivers 2MB FLASH memory, 352K x 8 RAM, and 144MHz operation. Enhanced I/O count (119 pins) and expanded connectivity (MMC/SD, USB OTG, USIC) support complex embedded systems. Active product status and RoHS3 compliance ensure regulatory alignment and supply chain continuity.

Both substitutes maintain the 144-pin surface mount package footprint, operating temperature range, and core connectivity protocols (CANbus, SPI, UART) required for C167CRLMHAKXQLA2 replacement. Voltage supply adjustment from 4.5V ~ 5.5V to 3.13V ~ 3.63V is required at the system level.

Frequently Asked Questions (FAQ)

Q: Can XMC4500F144K1024ACXQMA1 and XMC4700F144K2048AAXQMA1 be used interchangeably with C167CRLMHAKXQLA2?

A: Both XMC4000 series devices share the 144-pin package footprint and surface mount configuration. Pin-level compatibility requires verification against specific application schematics. The XMC4700 variant provides higher I/O count (119 vs. 91), which may require layout adjustments in existing designs.

Q: What is the primary difference between XMC4500F144K1024ACXQMA1 and XMC4700F144K2048AAXQMA1?

A: The XMC4500 provides 1MB FLASH and 160K RAM at 120MHz operation. The XMC4700 provides 2MB FLASH and 352K RAM at 144MHz operation. Both maintain identical package and thermal specifications. Selection depends on application memory and performance requirements.

Q: Are voltage supply adjustments necessary when substituting these parts?

A: Yes. The C167CRLMHAKXQLA2 operates at 4.5V ~ 5.5V, while both XMC4000 substitutes operate at 3.13V ~ 3.63V. System-level power supply redesign is required. Ensure all peripheral circuits and signal interfaces are compatible with 3.3V logic levels.

Q: Do the substitute parts maintain CANbus and UART connectivity?

A: Yes. Both XMC4500F144K1024ACXQMA1 and XMC4700F144K2048AAXQMA1 include CANbus, SPI, and UART/USART connectivity. The XMC4700 additionally supports LINbus and USIC protocols, providing expanded communication options.

Q: What is the MSL rating for these substitute parts?

A: All three devices share MSL 3 (168 Hours) classification, indicating identical moisture sensitivity handling and storage requirements.

Request Quote (Ships tomorrow)

Part Number

Quantity

Company

Contact Name

E-mail

Message