Infineon Technologies SAF-XE167K-72F66LAC

Overview

SAF-XE167K-72F66LAC from Infineon Technologies is a 16-bit real-time signal controller featuring an 80 MHz CPU, 576 KB on-chip Flash, 32 KB PSRAM, dual 10-bit ADCs (16+8 channels), and no CAN interface but four serial channels (UART/LIN/SPI/I²C/IIS). It integrates CCU6x PWM units, CAPCOM2, GPT12E timers, RTC, and JTAG debug support - designed for motor control and industrial embedded systems requiring deterministic timing and analog signal processing.

For engineers reviewing the SAF-XE167K-72F66LAC datasheet, SAF-XE167K-72F66LAC pinout, SAF-XE167K-72F66LAC application, or SAF-XE167K-72F66LAC equivalent, key selection criteria include Flash/PSRAM sizing, absence of MultiCAN, dual ADC channel count, CCU6x PWM capability, and LQFP-144 package compatibility with industrial thermal and layout constraints.

Technical Context

The XE167K derivative implements a five-stage pipelined C166-compatible CPU core with single-cycle 16×16 multiply, MAC, and 32-bit arithmetic - enabling sub-microsecond interrupt response and deterministic loop execution. Its memory subsystem includes 576 KB Flash (with ECC), 32 KB PSRAM, plus dedicated SBRAM/DPRAM/DSRAM blocks for real-time data buffering and context switching.

Peripheral integration centers on signal acquisition and actuation: two synchronized 10-bit ADCs (conversion time <1 µs, 24 total channels), four CCU6x units for independent 3-phase PWM generation, and four USIC modules configurable as UART, LIN, SPI, I²C, or IIS - all operating under centralized PEC-driven DMA with 24-bit addressing.

Key Specifications

Pinout & Package

SAF-XE167K-72F66LAC is housed in a 144-pin Green LQFP package (19.7 mil pitch) with exposed thermal pad. Pin definitions follow Infineon's XE166 family layout, supporting multiplexed address/data bus, 118 GPIOs, and dedicated analog/digital supply domains (VDDP/VSSP, VDDA/VSSA).

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar real-time signal controller applications.

Compared with SAF-XE167F-72F66L, the K-variant trades CAN for lower system complexity and cost; versus SAF-XE167H-72F66L, it offers identical functionality with earlier production qualification - making it optimal for cost-sensitive, CAN-free industrial motion control designs.

Availability

SAF-XE167K-72F66LAC is available at Aetrix Electronics and suitable for industrial motor drives, programmable logic controllers, solar inverter control, and industrial HMI controllers requiring stable component supply, long-term lifecycle assurance, and RoHS-compliant green packaging.

Supply support for SAF-XE167K-72F66LAC 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 industrial microcontrollers, with global R&D and manufacturing infrastructure.

The XE167 family targets real-time signal control in industrial automation and motor drives, emphasizing deterministic timing, integrated analog peripherals, and robust debug capabilities - directly addressing the needs of embedded control engineers designing closed-loop systems.

FAQ

What is the maximum operating temperature range for SAF-XE167K-72F66LAC?

The SAF-XE167K-72F66LAC is rated for operation from −40 °C to +85 °C ambient temperature, validated per Infineon's industrial-grade qualification standards (AEC-Q100 not applicable; qualified to JEDEC JESD22-A104). Thermal derating begins above 70 °C ambient when dissipating >2.2 W, requiring appropriate PCB copper pour and airflow.

Does SAF-XE167K-72F66LAC support external memory expansion?

Yes - it provides a 12 Mbyte external address space with programmable bus characteristics, supporting multiplexed/demultiplexed 8-bit or 16-bit data buses, five chip-select signals, and hold/hold-acknowledge arbitration. This enables connection to external SRAM, NOR Flash, or FPGA co-processors without glue logic.

How does the Peripheral Event Controller (PEC) reduce CPU overhead in motor control?

The PEC handles eight-channel DMA transfers autonomously using 24-bit pointers, allowing zero-CPU-intervention movement of ADC results to RAM or PWM register updates from lookup tables. In FOC implementations, this offloads ~65% of interrupt service routine cycles, freeing the CPU for vector transformations and safety checks.

Is SAF-XE167K-72F66LAC pin-compatible with other XE167 derivatives?

No - while sharing the LQFP-144 package, pin assignments differ significantly between XE167 variants (e.g., K vs. F vs. H) due to peripheral enablement (CAN, serial count, ADC channel mapping). Board design must match the specific derivative's pinout table in Section 2.1 of the datasheet.