Infineon Technologies CY9BF168NBGL-GE1

Overview

CY9BF168NBGL-GE1 from Infineon Technologies (formerly Cypress) is a 32-bit ARM® Cortex®-M4F microcontroller with 1024 KB MainFlash, 64 KB SRAM0, and integrated motor control peripherals including 8-channel base timers, 24-channel 12-bit ADC, and quadrature position/revolution counters. It operates up to 160 MHz with FPU, MPU, and dual watchdogs, targeting real-time embedded motor control systems in industrial drives.

For engineers reviewing the CY9BF168NBGL-GE1 datasheet, CY9BF168NBGL-GE1 pinout, CY9BF168NBGL-GE1 application, or CY9BF168NBGL-GE1 equivalent, key selection criteria include Flash/SRAM partitioning, 5V-tolerant I/O support, RTC+QPRC co-location for motion timing, and dual watchdog architecture for functional safety compliance.

Technical Context

This MCU implements a deterministic real-time execution environment via ARM Cortex-M4F core (r0p1), Memory Protection Unit (MPU), and Nested Vectored Interrupt Controller (NVIC) supporting 128 peripheral interrupts across 16 priority levels. Its dual Flash architecture separates code (MainFlash) and configuration/data (WorkFlash), enabling secure over-the-air updates without runtime interruption.

The peripheral set is optimized for closed-loop motor control: multi-function timers support PWM generation with dead-time insertion, A/D converters provide 0.5 μs conversion at 5 V, and QPRC modules directly interface incremental encoders with 16-bit position/revolution counters and configurable AIN/BIN/ZIN edge detection.

Key Specifications

Pinout & Package

Package: 120-pin LQFP (14 mm × 14 mm, 0.4 mm pitch), RoHS-compliant, with 5V-tolerant I/O on designated pins per "I/O Circuit Type" specification.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar motor control microcontroller applications.

Compared with RA6M5GFP120FB#AC0 and S32K144HAT0MLHT, CY9BF168NBGL-GE1 uniquely integrates QPRC hardware, dual Flash partitioning, and 5V-tolerant I/O-reducing system-level complexity for industrial motor control without sacrificing safety or update security.

Availability

CY9BF168NBGL-GE1 is available at Aetrix Electronics and suitable for industrial motor drives, programmable logic controllers (PLCs), smart power tools, and medical pump controllers requiring stable component supply and long-term lifecycle support.

Supply support for CY9BF168NBGL-GE1 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 is a global semiconductor leader headquartered in Munich, Germany, specializing in power systems, automotive MCUs, and industrial control solutions.

CY9BF168NBGL-GE1 belongs to the FM4 family of high-performance ARM Cortex-M4F microcontrollers, designed specifically for deterministic real-time motor control, industrial automation, and safety-critical embedded systems with integrated analog and timing peripherals.

FAQ

What is the maximum operating frequency and how is it achieved?

The CY9BF168NBGL-GE1 achieves 160 MHz system clock via its internal Main PLL, which multiplies an external 4–48 MHz crystal input. Flash Accelerator enables zero-wait-state execution up to 72 MHz; above that, the accelerator maintains equivalent effective access speed through prefetch and trace buffer mechanisms, ensuring deterministic real-time performance.

Does this MCU support functional safety standards like IEC 61508 or ISO 26262?

While CY9BF168NBGL-GE1 is not pre-certified to IEC 61508 or ISO 26262, its dual watchdog timers (hardware + software), MPU, CRC accelerator, and lockstep-capable peripherals provide foundational hardware features used in safety architectures. Customers must implement and validate their own safety mechanisms per target standard requirements.

How does the WorkFlash memory differ from MainFlash in practice?

WorkFlash (32 KB) is architecturally separate from MainFlash (1024 KB) and shares the same security protection features, but is optimized for frequent rewrites-such as storing calibration data, device configuration, or firmware update staging. Its wait-state behavior scales with clock frequency (0–6 cycles), unlike MainFlash's fixed accelerator-assisted latency, making it ideal for dynamic parameter storage.

Can the QPRC channels operate independently while the CPU is in Deep Standby mode?

Yes-QPRC channels retain full functionality in Deep Standby RTC mode (with RAM retention enabled), counting encoder pulses using the 32.768 kHz sub-clock. Position and revolution counters continue updating, and overflow/interrupt events can wake the CPU, enabling ultra-low-power motion monitoring without full system wake-up.