Infineon Technologies XC161CJ16F40FBBKXUMA1

Overview

XC161CJ16F40FBBKXUMA1 from Infineon Technologies is a 16-bit single-chip microcontroller based on the C166SV2 core, featuring 128 KB on-chip Flash, 8 KB total SRAM (2 KB DPRAM + 4 KB DSRAM + 2 KB PSRAM), and integrated TwinCAN 2.0B interface with 32 message objects across two CAN nodes. It operates at up to 40 MHz CPU clock (25 ns instruction cycle), supports 1-cycle MAC and 1-cycle 16×16 multiplication, and targets automotive powertrain and industrial motor control applications requiring deterministic real-time response.

For engineers reviewing the XC161CJ16F40FBBKXUMA1 datasheet, XC161CJ16F40FBBKXUMA1 pinout, XC161CJ16F40FBBKXUMA1 application, or XC161CJ16F40FBBKXUMA1 equivalent, key selection criteria include its 144-pin TQFP RoHS-compliant package, -40 °C to 125 °C extended temperature grade, on-chip OCDS debug support via JTAG, and dual ASC/SSC serial interfaces for sensor and actuator communication in safety-critical embedded systems.

Technical Context

The XC161CJ16F40FBBKXUMA1 implements a 5-stage pipelined C166SV2 CPU core with register-based architecture, dual local register banks for fast context switching, and 16 MB linear address space. Its interrupt system delivers 73 sources with 16 priority levels and sub-50 ns sample-rate latency, enabling precise timing control in closed-loop motor drives.

Peripheral integration includes a 12-channel A/D converter with programmable 8-/10-bit resolution and conversion times as low as 2.15 µs, two 16-channel CAPCOM units, GPT12E timer unit with five independent timers, and dedicated RTC driven by a separate oscillator - all synchronized to a configurable PLL clock generator supporting multiplication factors from 1:0.15 to 1:10.

Key Specifications

Pinout & Package

XC161CJ16F40FBBKXUMA1 is housed in a 144-pin green TQFP (Thin Quad Flat Package) with 0.5 mm lead pitch, RoHS-compliant, designed for reflow soldering and high-density PCB layouts in automotive ECUs and industrial controllers.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar 16-bit automotive microcontroller applications.

Compared with SAK-XC164CS-16F40F and SAF-XC2267M-104F80L, XC161CJ16F40FBBKXUMA1 provides optimal balance of proven reliability, J1850/SDLM legacy compatibility, and cost-effective 128 KB Flash for volume production of Tier 1 automotive modules where protocol continuity outweighs raw performance uplift.

Availability

XC161CJ16F40FBBKXUMA1 is available at Aetrix Electronics and suitable for engine control units, industrial motor drives, and heavy-duty vehicle gateways requiring stable component supply across extended temperature ranges and long product lifecycles.

Supply support for XC161CJ16F40FBBKXUMA1 includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.

Manufacturer

Infineon Technologies AG is a German semiconductor manufacturer specializing in power management, automotive ICs, and security solutions, with global R&D and manufacturing infrastructure.

This device belongs to the XC161 family - a line of 16-bit C166SV2-based microcontrollers engineered for deterministic real-time control in automotive powertrain and industrial automation systems where legacy protocol support and extended temperature operation are critical.

FAQ

What is the maximum operating frequency and corresponding instruction cycle time?

The XC161CJ16F40FBBKXUMA1 achieves a maximum CPU clock of 40 MHz, resulting in a 25 ns instruction cycle time for single-cycle execution of most instructions. This timing is guaranteed over the full -40 °C to +125 °C operating range and enables sub-100 µs control loop execution in motor and engine applications.

Does this microcontroller support JTAG-based debugging in production environments?

Yes - it integrates On-Chip Debug Support (OCDS) compliant with IEEE 1149.1 JTAG, allowing full boundary-scan testing, real-time variable monitoring, and non-intrusive breakpoint insertion without halting the CPU. TRST pin must be asserted during power-up for JTAG initialization.

How many CAN message objects does the TwinCAN module support, and are they shared between nodes?

The TwinCAN module supports 32 message objects total, configurable per node (CAN0/CAN1). Objects are independently assigned - e.g., 16 to CAN0 and 16 to CAN1 - with hardware filtering and transmission prioritization managed per node without CPU intervention.

Is the on-chip Flash memory field-programmable, and what is its endurance rating?

Yes - the 128 KB Flash is field-programmable via the on-chip bootstrap loader or JTAG interface. Infineon specifies ≥10,000 erase/write cycles and data retention of ≥20 years at 125 °C, validated per AEC-Q100 stress testing requirements for automotive use.