Infineon Technologies SAF-XC164GM-4F20F AA

Overview

SAF-XC164GM-4F20F AA from Infineon Technologies is a 16-bit single-chip microcontroller based on the C166SV2 core, operating at 20 MHz CPU clock (50 ns instruction cycle), featuring 32 KB on-chip Flash, 2 KB dual-port RAM, and integrated TwinCAN 2.0B interface with 32 message objects across two CAN nodes. It supports real-time motor control in industrial inverters.

For engineers reviewing the SAF-XC164GM-4F20F AA datasheet, SAF-XC164GM-4F20F AA pinout, SAF-XC164GM-4F20F AA application, or SAF-XC164GM-4F20F AA equivalent, key selection criteria include CAN node count, Flash size vs. code footprint, DPRAM availability for concurrent ISR/data access, and 64-pin TQFP thermal performance in convection-cooled drives.

Technical Context

The XC164GM implements a 5-stage pipelined C166SV2 CPU with zero-cycle jumps, 1-cycle 16×16 multiply, and 21-cycle 32/16 divide - enabling deterministic loop execution in servo position control. Its peripheral event controller (PEC) delivers single-cycle data transfers using 24-bit pointers spanning the full 16 MB address space.

On-chip clock generation uses a programmable PLL (1:0.15 to 1:10) or prescaler (1:1 to 60:1), supporting flexible system timing; the TwinCAN module operates independently on two physical CAN transceivers with full CAN 2.0B compliance and gateway functionality between nodes.

Key Specifications

Pinout & Package

SAF-XC164GM-4F20F AA is housed in a 64-pin Thin Quad Flat Package (TQFP) with 0.5 mm lead pitch, optimized for thermal dissipation in enclosed industrial enclosures and compatible with standard reflow profiles.

Key Features

Applications

Equivalent & Alternatives

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

Compared with SAF-XC164CS-4F20F, the SAF-XC164GM-4F20F AA adds second CAN node and gateway logic without increasing power or footprint; versus XC2267M, it trades raw compute for proven industrial qualification, smaller package, and lower system-level thermal design complexity.

Availability

SAF-XC164GM-4F20F AA is available at Aetrix Electronics and suitable for industrial motor drives, automotive body control modules, PLC I/O expansion, and energy meter gateways requiring stable component supply across extended product lifecycles.

Supply support for SAF-XC164GM-4F20F AA 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 manufacturing and quality certification to ISO/TS 16949 and IEC 61508.

The XC164GM family targets cost-sensitive, real-time industrial control applications requiring integrated CAN, deterministic timing, and robust operation across −40 °C to +85 °C - particularly in motor drives and distributed automation nodes.

FAQ

What is the maximum operating frequency of the SAF-XC164GM-4F20F AA CPU?

The SAF-XC164GM-4F20F AA operates at a maximum CPU clock frequency of 20 MHz, delivering a 50 ns instruction cycle time. This is achieved using the on-chip PLL configured for 1:1 multiplication of a 20 MHz external crystal or oscillator signal. The C166SV2 core's 5-stage pipeline ensures consistent single-cycle execution for most instructions, including zero-cycle jumps and 1-cycle multiply operations.

Does the SAF-XC164GM-4F20F AA support JTAG-based debugging?

Yes, the SAF-XC164GM-4F20F AA includes full On-Chip Debug Support (OCDS) compliant with IEEE 1149.1 JTAG. It supports real-time debugging features such as hardware breakpoints, watchpoints, and trace capabilities through the JTAG interface, enabling non-intrusive validation of time-critical control loops and memory access patterns during development and field diagnostics.

How many CAN nodes does the TwinCAN module support, and what protocol versions are implemented?

The TwinCAN module in the SAF-XC164GM-4F20F AA supports two independent CAN nodes (CAN0 and CAN1), each compliant with CAN Specification Version 2.0B Active. It provides 32 configurable message objects shared across both nodes and includes built-in gateway functionality to route messages between them - enabling bridging, filtering, and priority-based forwarding without CPU intervention.

What are the memory configuration options for the SAF-XC164GM-4F20F AA?

The SAF-XC164GM-4F20F AA integrates 32 KB of on-chip Flash program memory, 2 KB of dual-port RAM (DPRAM), and 2 KB of program/data SRAM (PSRAM). It does not include on-chip data SRAM (DSRAM) - unlike higher-density derivatives such as the -8F or -16F variants. All memory blocks are mapped into the unified 16 MB linear address space and accessible via the C166SV2 core's Harvard-style bus architecture.