Infineon Technologies CY9BF167RPMC-GNE2

Overview

CY9BF167RPMC-GNE2 from Infineon Technologies (formerly Cypress) is a 32-bit ARM® Cortex®-M4F microcontroller with FPU, 1024 KB MainFlash, 64 KB SRAM0, 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 and supports LIN 2.1, UART, I²C, and CSIO interfaces for industrial motor drives and embedded control systems.

For engineers reviewing the CY9BF167RPMC-GNE2 datasheet, CY9BF167RPMC-GNE2 pinout, CY9BF167RPMC-GNE2 application, or CY9BF167RPMC-GNE2 equivalent, key selection criteria include Flash/SRAM partitioning (MainFlash + 32 KB WorkFlash), dual watchdog architecture (hardware + software), RTC with leap-year support, VCC range of 2.7–5.5 V, and 120-pin LQFP package with 5V-tolerant I/O pins.

Technical Context

The CY9BF167RPMC-GNE2 implements a dual-bus memory architecture: MainFlash (1024 KB) with accelerator enabling zero-wait access up to 72 MHz, and separate 32 KB WorkFlash with configurable wait states (0–6 cycles) scaling with clock frequency. Its peripheral subsystem integrates DSTC (128-channel descriptor-based DMA), CRC accelerator (CRC16/32), and SD card interface compliant with SD Host Controller Standard v3.00.

Motor control capability is enabled by two multi-function timer units supporting PWM generation, dead-time insertion, A/D activation triggers, and DTIF emergency stop interrupts. Real-time operation is reinforced by independent RTC (with calendar, alarm, and wake-up), dual watchdogs (CR-based hardware WDT active in STOP mode), and six low-power modes including Deep Standby RTC with optional RAM retention.

Key Specifications

Pinout & Package

This device is housed in a 120-pin LQFP package (14 mm × 14 mm, 0.4 mm pitch) with exposed thermal pad. Pin functions are defined across multiple power domains (VCC, VSS, VBAT), clock inputs (XIN/XOUT, SUBXIN/SUBXOUT), reset (INITX), debug (SWDIO/SWCLK), and configurable I/O groups supporting peripheral relocation.

Key Features

Applications

Equivalent & Alternatives

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

Compared with RA6M4 and STM32H743VI, CY9BF167RPMC-GNE2 delivers optimized integration for cost-sensitive motor control: on-die LIN 2.1, QPRC, and WorkFlash enable deterministic firmware updates and position-critical timing without external components or software overhead.

Availability

CY9BF167RPMC-GNE2 is available at Aetrix Electronics and suitable for industrial motor drives, smart energy metering, and automotive body control modules requiring stable component supply, long-term lifecycle support, and qualified automotive-grade variants.

Supply support for CY9BF167RPMC-GNE2 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 management, automotive MCUs, and security solutions.

The CY9BF167RPMC-GNE2 belongs to the FM4 family of high-performance ARM Cortex-M4F microcontrollers, designed specifically for real-time industrial control, motor drive, and automotive body electronics where deterministic timing, peripheral integration, and functional safety readiness are critical.

FAQ

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

The CY9BF167RPMC-GNE2 achieves 160 MHz operation using its internal Main PLL, which accepts 4–48 MHz input from the main oscillator. The PLL output feeds the CPU, memory, and peripheral clocks. Flash accelerator enables zero-wait-state execution up to 72 MHz; above that, the accelerator maintains equivalent performance via prefetch and trace buffer (16 KB), ensuring deterministic instruction fetch at full speed.

Does this MCU support hardware LIN 2.1 without external transceivers?

Yes - the CY9BF167RPMC-GNE2 includes a fully integrated LIN 2.1 controller with built-in break field generation (13–16 bit), delimiter control (1–4 bit), and automatic checksum calculation. However, an external LIN transceiver (e.g., TLE7259-3GE) is still required to drive the physical bus line, as the MCU's LIN peripheral handles only the protocol layer and signal conditioning.

How does the WorkFlash differ from MainFlash in usage and protection?

WorkFlash (32 KB) is architecturally separate from MainFlash and intended for runtime data storage (e.g., calibration tables, firmware parameters). It shares the same code protection mechanism but uses distinct wait-state configuration per frequency band (0–6 cycles). Unlike MainFlash, WorkFlash supports faster erase/write cycles and is commonly used for over-the-air update staging while MainFlash remains locked for active code execution.

Can the QPRC operate independently during STOP mode?

No - the QPRC requires the peripheral clock domain to be active and is disabled in STOP mode. However, it remains fully operational in SLEEP, TIMER, and RTC low-power modes. For position tracking during deepest sleep, designers must use RTC wake-up intervals to briefly resume QPRC operation, or rely on VBAT-powered peripherals like the RTC itself - but QPRC is not VBAT-powered.