Infineon Technologies FX167CI32F40FBBANT

Overview

FX167CI32F40FBBANT 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 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 16×16 multiplication, and targets real-time industrial motor control systems requiring deterministic interrupt response down to 50 ns.

For engineers reviewing the FX167CI32F40FBBANT datasheet, FX167CI32F40FBBANT pinout, FX167CI32F40FBBANT application, or FX167CI32F40FBBANT equivalent, key selection criteria include its 144-pin TQFP RoHS-compliant package, -40 °C to 125 °C extended temperature grade, on-chip PLL with 1:0.15–1:10 multiplication range, and dual ASC/SSC serial interfaces for multi-protocol embedded communication subsystems.

Technical Context

The XC167CI-32F derivative implements a 5-stage pipelined C166SV2 CPU with register-based architecture, two local register banks for fast context switching, and 16 Mbyte linear address space. Its peripheral set includes a 16-channel A/D converter (10-/8-bit programmable resolution, 2.55 µs min conversion time), CAPCOM1/2 units (32 I/O pins), and CAPCOM6 for flexible PWM generation (3/6 capture/compare channels).

It integrates TwinCAN Rev. 2.0B with full CAN/basic CAN support, gateway functionality between two CAN nodes, and an I²C interface (10-bit addressing, 400 kbit/s). Clock generation uses either on-chip PLL or prescaler (1:1–60:1), while power management enables idle, sleep, and power-down modes with oscillator watchdog and programmable watchdog timer.

Key Specifications

Pinout & Package

FX167CI32F40FBBANT is housed in a 144-pin green TQFP (Thin Quad Flat Package) with 0.5 mm pitch, RoHS compliant, and designed for high-density PCB layouts with controlled thermal dissipation via defined RΘJC and RΘJL values.

Key Features

Applications

Equivalent & Alternatives

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

Compared with SAK-XC167CI-32F20F and SAF-XC167CI-32F40F, FX167CI32F40FBBANT uniquely combines 40 MHz operation, -40 °C to 125 °C qualification, and TwinCAN gateway capability-making it optimal for under-hood motor control and high-reliability industrial edge nodes where thermal robustness and deterministic timing are critical.

Availability

FX167CI32F40FBBANT is available at Aetrix Electronics and suitable for industrial motor control, automotive body electronics, PLC I/O modules, and energy metering gateways requiring stable component supply across extended temperature ranges and long production lifecycles.

Supply support for FX167CI32F40FBBANT 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 microcontrollers, with global R&D and manufacturing infrastructure.

The XC167 family was designed for deterministic real-time control in automotive powertrain and industrial automation, emphasizing high interrupt responsiveness, integrated CAN networking, and robust on-chip memory for safety-critical firmware.

FAQ

What is the maximum operating frequency of the FX167CI32F40FBBANT CPU core?

The FX167CI32F40FBBANT features a C166SV2 core rated for up to 40 MHz CPU clock frequency, delivering a 25 ns instruction cycle time for single-cycle execution of most instructions. This rating is validated across the full -40 °C to 125 °C temperature range and requires proper configuration of Flash wait states via the IMBCTRL register's WSFLASH bitfield based on actual operating conditions.

Does FX167CI32F40FBBANT support JTAG-based debugging?

Yes, FX167CI32F40FBBANT includes full On-Chip Debug Support (OCDS) accessible via standard JTAG interface, enabling real-time debugging, breakpoint setting, register inspection, and flash programming without halting peripheral operation. The TRST pin provides asynchronous test reset, and OCDS complies with IEEE 1149.1 boundary-scan specifications as documented in the V1.1 datasheet.

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

The TwinCAN module in FX167CI32F40FBBANT supports two independent CAN nodes (CAN0 and CAN1), each compliant with CAN 2.0B specification including both standard (11-bit) and extended (29-bit) identifier formats. It provides 32 configurable message objects, hardware message filtering, and built-in gateway functionality to route messages between the two nodes without CPU intervention.

What are the memory organization details for on-chip RAM and Flash?

FX167CI32F40FBBANT integrates 256 KB of on-chip Flash memory for program storage, plus 12 KB of SRAM divided into 2 KB dual-port RAM (DPRAM), 4 KB data SRAM (DSRAM), and 6 KB program/data SRAM (PSRAM). The DPRAM enables concurrent CPU and peripheral access, while the PSRAM supports unified code/data execution in XRAM mode, all mapped within the 16 MB linear address space.