Infineon Technologies CY9BF167NBGL-GE1

Overview

CY9BF167NBGL-GE1 from Infineon Technologies (formerly Cypress) is a 32-bit ARM® Cortex®-M4F microcontroller with 1024 KB Flash, 128 KB SRAM (64+32+32), and integrated motor control peripherals including 8-channel base timers, 2-unit multi-function timers, and QPRC for encoder position sensing. It operates up to 160 MHz with FPU, MPU, and hardware CRC acceleration, targeting real-time embedded motor control systems.

For engineers reviewing the CY9BF167NBGL-GE1 datasheet, CY9BF167NBGL-GE1 pinout, CY9BF167NBGL-GE1 application, or CY9BF167NBGL-GE1 equivalent, key selection criteria include Flash/SRAM partitioning, dual watchdog architecture (HW/SW), 5V-tolerant GPIO count, SD card interface compliance (SD Host Controller v3.00), and RTC with leap-year support in deep-standby modes.

Technical Context

The CY9BF167NBGL-GE1 implements a dual-Flash architecture (MainFlash + WorkFlash) with configurable wait states and built-in Flash accelerator enabling zero-wait-state access up to 72 MHz. Its memory subsystem includes three independent SRAM banks (SRAM0 on I/D-code bus; SRAM1/SRAM2 on system bus) for deterministic real-time execution.

It integrates a descriptor-based DSTC (128 channels) for CPU-offload data movement, alongside an 8-channel DMA controller - both supporting burst/block/demand transfers across 4 GB address space. Peripheral timing is synchronized via five clock sources (main/sub/CR/PLL) with Clock Supervisor (CSV) monitoring external oscillator stability.

Key Specifications

Pinout & Package

Package: 120-pin LQFP (14 mm × 14 mm, 0.4 mm pitch), RoHS-compliant, moisture sensitivity level 3.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar 32-bit motor control microcontroller applications.

Compared with STM32H743VI and RA6M5L20FB, CY9BF167NBGL-GE1 uniquely combines dual-Flash partitioning, dual QPRC channels, SDIO v3.00 host, and 5V-tolerant I/O - making it optimal for cost-sensitive, encoder-rich industrial drives where Flash update safety and peripheral integration outweigh raw CPU speed.

Availability

CY9BF167NBGL-GE1 is available at Aetrix Electronics and suitable for industrial motor drives, automotive body controllers, smart energy meters, and medical infusion pumps requiring stable component supply, long-term lifecycle support, and qualified automotive-grade variants.

Supply support for CY9BF167NBGL-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 German semiconductor manufacturer specializing in power management, automotive MCUs, and industrial control solutions, with global manufacturing and quality certification to ISO/TS 16949 and IEC 61508.

The CY9B160R series - now part of Infineon's FM4 portfolio - was designed specifically for cost-optimized, high-reliability motor control and real-time embedded applications requiring integrated analog, timing, and communication peripherals.

FAQ

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

The CY9BF167NBGL-GE1 achieves 160 MHz core operation using its internal Main PLL, which accepts 4–48 MHz input from the main oscillator. The Flash Accelerator System with 16 KB trace buffer enables zero-wait-state instruction fetch at ≤72 MHz and maintains effective performance above that threshold via prefetch and caching. This eliminates pipeline stalls during tight control loops.

Does this MCU support secure firmware updates?

Yes - it supports secure firmware updates through hardware-accelerated CRC32 (IEEE-802.3) for payload integrity verification, MPU-enforced memory isolation between bootloader and application, and Flash security features that prevent unauthorized read-out of WorkFlash contents. The unique 41-bit device ID enables per-unit cryptographic binding in signed update schemes.

How many independent clock domains does the device support?

The device supports five independent clock sources: main oscillator (4–48 MHz), sub-clock (32.768 kHz), high-speed CR (4 MHz), low-speed CR (100 kHz), and Main PLL output. These feed separate functional domains - including CPU, peripherals, RTC, and debug - and are dynamically switchable via the Clock Control Unit (CCU) without system reset.

Can the QPRC operate during low-power modes?

No - the QPRC requires the main clock domain and is disabled in STOP and Deep Standby modes. However, it remains active in SLEEP, TIMER, and RTC modes. For position tracking during ultra-low-power operation, external hardware counters or wake-up via QPRC interrupt (in TIMER mode) must be used, as the QPRC itself does not function on VBAT-only power.