Infineon Technologies SAF-XC164S-32F20F BB

Overview

SAF-XC164S-32F20F BB from Infineon Technologies is a 16-bit single-chip microcontroller based on the C166SV2 core, featuring 256 KB on-chip Flash, 12 KB total SRAM (2 KB DPRAM + 4 KB DSRAM + 6 KB PSRAM), and operation up to 40 MHz CPU clock (25 ns instruction cycle). It integrates dual ASC/SSC serial interfaces, a 14-channel 10-bit ADC (2.55 µs conversion), CAPCOM6 PWM unit, and real-time clock - deployed in industrial motor control and embedded power conversion systems.

For engineers reviewing the SAF-XC164S-32F20F BB datasheet, SAF-XC164S-32F20F BB pinout, SAF-XC164S-32F20F BB application, or SAF-XC164S-32F20F BB equivalent, key selection criteria include Flash access timing at 20 MHz grading, 100-pin TQFP package compatibility, interrupt latency down to 50 ns, and peripheral event controller (PEC)-driven DMA with 24-bit addressing for deterministic real-time I/O handling.

Technical Context

The XC164S-32F20F implements a 5-stage pipelined C166SV2 CPU with zero-cycle jumps, 1-cycle 16×16 multiply, and MAC instructions - enabling deterministic execution in closed-loop control loops. Its memory subsystem supports 16 MB linear address space, with configurable wait states for Flash (WSFLASH register) and external bus timing tuned via four programmable chip-selects.

Peripheral integration centers on real-time responsiveness: a 16-priority, 75-source interrupt system; 8-channel PEC for single-cycle data transfers; CAPCOM6 for flexible 3/6-channel PWM generation; and GPT12E timer unit with five independent timers - all synchronized to a PLL-based clock generator supporting multiplication factors from 1:0.15 to 1:10.

Key Specifications

Pinout & Package

SAF-XC164S-32F20F BB is housed in a 100-pin green TQFP package (Infineon package code BB), 0.5 mm pitch, RoHS compliant. Pin definitions are fully documented in Section 2.2 of the 2006 datasheet (V1.0), including dedicated pins for XTAL1/XTAL2, VDD/VSS rails, JTAG debug interface (TCK/TDI/TDO/TMS/TRST), and multiplexed I/O with configurable thresholds.

Key Features

Applications

Equivalent & Alternatives

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

Compared with SAF-XC164S-32F20F BB, the F40F variant removes Flash wait-state constraints at 40 MHz but increases dynamic power, while the R20F replaces field-programmable Flash with lower-cost mask ROM - making F20F the optimal balance of reprogrammability, real-time determinism, and thermal efficiency for mid-volume industrial designs.

Availability

SAF-XC164S-32F20F BB is available at Aetrix Electronics and suitable for industrial motor control, uninterruptible power supplies, and programmable logic controller I/O modules requiring stable component supply, long-term lifecycle assurance, and RoHS-compliant packaging.

Supply support for SAF-XC164S-32F20F BB 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, and industrial control ICs, with global R&D and manufacturing infrastructure.

The XC164S family targets high-reliability embedded control applications demanding deterministic real-time response, integrated analog/mixed-signal peripherals, and robust industrial-grade packaging - particularly in motor drives, power conversion, and factory automation.

FAQ

What is the maximum operating frequency supported by SAF-XC164S-32F20F BB without Flash wait states?

The F20F speed grade specifies that the on-chip Flash module supports zero-wait-state operation up to 20 MHz CPU clock frequency. At 40 MHz operation, WSFLASH register configuration is required to insert one or more wait states per Flash access, as detailed in Section 4.4.2 of the 2006 datasheet. This ensures reliable instruction fetch timing under all voltage and temperature conditions.

Does SAF-XC164S-32F20F BB support in-system programming (ISP) via its on-chip bootloader?

Yes - the device includes an on-chip bootstrap loader accessible via ASC0 or ASC1 serial interface, enabling firmware updates in the field without external programming hardware. The bootloader supports Intel HEX file format and verifies checksums before writing to Flash, with protection against accidental overwrite of protected sectors.

How many independent PWM channels can be generated using CAPCOM6 on SAF-XC164S-32F20F BB?

CAPCOM6 provides three dedicated capture/compare channels and six additional shared capture/compare channels, allowing up to six independent PWM outputs with configurable polarity, dead time, and center/edge alignment. Each channel can be individually triggered and synchronized to GPT12E timers for precise phase relationships in multi-phase motor control.

Is JTAG debugging supported, and what debug capabilities does OCDS provide?

Yes - the device implements Infineon's On-Chip Debug Support (OCDS) via standard 5-pin JTAG (TCK/TMS/TDI/TDO/TRST). OCDS enables non-intrusive real-time tracing, hardware breakpoints, watchpoints, register visibility during run-time, and flash programming - all without halting CPU execution, critical for debugging time-sensitive control loops.