XE166xU Series - Compact Line

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Key features

  • 66 MHz frequency = 66MIPS performance
  • Up to 64KB of flash memory and 8KB of RAM
  • PWM unit (CCU6) to drive any industrial 3-phase motor
  • Two serial interfaces (USIC)
  • DAP - Device Access Port (two-wire JTAG, replaces five-wire JTAG)
  • SPD - single wire JTAG

XE166xU Series




Core Core


Frequency (MHz)


Package TSSOP 38 QFN 48
Flash Prog/Data Flash (kB) 64 64
SRAM ∑ SRAM (kB) 8 8
CAN Channels 0 0
ADC Channels 8 10
Universal Serial Interface
[USIC] Channels*
2 2
Capture Compare
Units [CCU]**
CCU 1 0 0
CCU 2 1 1
CCU 6 1 1
Temperature (ambient) -40°C to
-40°C to

* USIC: can be configured as UART, LIN, SPI, IIC, IIS

** CCU: used for PWM, D/A


Application Note Selector

Parametric Search

Product OPN Product Status Order Online Packages Green Budgetary Price €€/1k Clock Frequency SRAM (incl. Cache) CAN Nodes A/D Input Lines (incl. FADC)
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SAK-XE161FU-8F40V AA  


active and preferred




40.0 MHz
8.0 kByte

Data Sheet

Title Size Date Version
2.7 MB 10 Jul 2012 01_02
2.6 MB 10 Jul 2012 01_02

User Manual

Title Size Date Version
2.1 MB 15 Sep 2010 02_01
8.1 MB 18 May 2011 01_01

Application Notes

Title Size Date Version
2.9 MB 15 Mar 2016 03_05
898 KB 19 Aug 2016 01_03
1.3 MB 30 May 2011 01_00
2.9 MB 30 May 2011 01_00
1.2 MB 05 Apr 2011 01_00

Errata Sheet

Title Size Date Version
1.5 MB 30 Sep 2013 01_02

Evaluation Boards

Board Family Description Status
KIT_DAP_MINIWIGGLER_USB Microcontroller The miniWiggler is Infineon’s high performance and cost-efficient debugging tool for the future. On the host side, it has an USB interface, which is available on every computer. On the device side, the communication goes over Infineon 10-pin DAP or 16-pin OCDSL1 interfaces. The miniWiggler has been designed specifically to work in combination with Infineon’s Debug Access Software (DAS).
  • All microcontrollers with DAP interface
active and preferred
KIT_XE160FU_EK_V1 Microcontroller For evaluation of XE160FU/XE161FU including Getting Started DAVE(TM), technical documentation, compiler and debugger, USB cable for power supply, virtual COM port and flash programming and debugging.
  • XE160FU
  • XE161FU
coming soon
KIT_MINIWIGGLER_3_USB Microcontroller High-Performance and Cost-Effective interface to the 10-pin DAP and 20-pin Automotive JTAG connector
    active and preferred

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    Development Tools

    Title Size Date Version
    4.7 MB 09 Mar 2011 01_02