Infineon Technologies CY9BF166NPMC-G-MNE2

Overview

CY9BF166NPMC-G-MNE2 from Infineon Technologies (formerly Cypress) is a 32-bit ARM® Cortex®-M4F microcontroller with 1024 KB Flash, 128 KB SRAM (64+32+32 KB), and integrated motor control peripherals including 8-channel base timers, 24-channel 12-bit ADC, 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 CY9BF166NPMC-G-MNE2 datasheet, CY9BF166NPMC-G-MNE2 pinout, CY9BF166NPMC-G-MNE2 application, or CY9BF166NPMC-G-MNE2 equivalent, key selection criteria include Flash/SRAM partitioning, dual watchdog architecture (HW/SW), 5V-tolerant GPIO count, RTC with leap-year support, and SD card interface compliance with SD Host Controller Standard v3.00.

Technical Context

The CY9BF166NPMC-G-MNE2 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 12-channel multi-function timer unit supporting PWM, PPG, dead-time insertion, and A/D activation triggers - all synchronized to motor phase timing. The DSTC (Descriptor System Transfer Controller) provides 128-channel DMA-like transfers without CPU intervention, critical for high-throughput sensor data streaming in closed-loop control.

Key Specifications

Pinout & Package

Package: 120-pin LQFP (14 mm × 14 mm, 0.4 mm pitch), RoHS-compliant, moisture sensitivity level 3. Pin count and I/O allocation confirmed per Infineon Document No. 002-04918 Rev. *H "Pin Assignment" (Page 9) and "Pin Description" (Page 14).

Key Features

Applications

Equivalent & Alternatives

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

Compared with STM32H743VI and RA6M5GFP, CY9BF166NPMC-G-MNE2 offers optimal balance of motor control specialization (QPRC, dead-time PWM, 24-channel ADC), deterministic real-time performance (dual-Flash architecture), and cost-effective SDIO logging - making it ideal for mid-tier industrial and automotive body controllers where peripheral integration reduces system complexity.

Availability

CY9BF166NPMC-G-MNE2 is available at Aetrix Electronics and suitable for industrial motor drives, automotive body control modules, and smart appliance control units requiring stable component supply, long-term lifecycle support, and qualified automotive-grade packaging.

Supply support for CY9BF166NPMC-G-MNE2 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 MCUs, and security solutions, with global R&D and manufacturing infrastructure.

The CY9B160R series - including CY9BF166NPMC-G-MNE2 - was designed specifically for cost-sensitive, high-reliability embedded motor control applications requiring integrated analog peripherals, robust timing subsystems, and industrial temperature range operation.

FAQ

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

The CY9BF166NPMC-G-MNE2 achieves 160 MHz core operation using the Main PLL clock sourced from an external 4–48 MHz crystal. The PLL multiplies the input frequency while maintaining low jitter, and the Flash Accelerator system ensures zero-wait-state instruction fetches up to 72 MHz - with equivalent performance above that via prefetch and trace buffer optimization.

Does this MCU support secure firmware updates?

Yes. It supports secure firmware updates through WorkFlash memory with shared code protection logic, hardware CRC32 acceleration for integrity verification, and a unique 41-bit device ID used in cryptographic key binding. Secure boot is implemented via immutable ROM bootloader that validates signature and hash before executing user Flash code.

How many independent clock domains does it have and what are their roles?

It has 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 domains: CPU/core, peripheral bus, RTC, watchdog, and debug - enabling precise power gating and clock failure detection via Clock Supervisor (CSV) with interrupt/reset assertion.

Is the SDIO interface compatible with UHS-I or only legacy SD modes?

The SDIO interface complies with SD Host Controller Standard v3.00 and supports 1-bit and 4-bit data bus modes at up to 50 MB/s in high-speed mode, but does not implement UHS-I signaling (1.8 V I/O, SDR50/DDR50). It operates exclusively at 3.3 V signaling and is fully compatible with Class 10 and UHS-I cards used in legacy mode (i.e., SDHC/SDXC cards in 4-bit high-speed mode).