Infineon Technologies CY9BF168MPMC-GNE2

Overview

CY9BF168MPMC-GNE2 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 and HVAC blowers.

For engineers reviewing the CY9BF168MPMC-GNE2 datasheet, CY9BF168MPMC-GNE2 pinout, CY9BF168MPMC-GNE2 application, or CY9BF168MPMC-GNE2 equivalent, key selection criteria include Flash/SRAM partitioning, 5V-tolerant I/O support on selected pins, RTC+QPRC co-timing capability, and dual-mode LIN/UART/CSIO serial interface allocation across 8 channels.

Technical Context

The CY9BF168MPMC-GNE2 implements a deterministic real-time architecture centered on the ARM Cortex-M4F core (r0p1 revision) with tightly coupled memory subsystems: MainFlash (1024 KB, zero-wait up to 72 MHz), WorkFlash (32 KB, configurable wait states), and three independent SRAM banks (64 KB + 32 KB + 32 KB). Its interrupt handling uses NVIC with 128 peripheral vectors and 16 priority levels, plus dedicated DTIF for motor emergency stop.

Peripheral timing is synchronized via five clock sources - main oscillator (4–48 MHz), sub-clock (32.768 kHz), two internal CR oscillators (4 MHz / 100 kHz), and Main PLL - monitored by Clock Supervisor (CSV) for external oscillator failure detection. Low-power operation includes six modes (SLEEP to Deep Standby RTC), with VBAT-supported RTC retention and 32-byte backup registers.

Key Specifications

Pinout & Package

CY9BF168MPMC-GNE2 is housed in a 120-pin LQFP package (14 mm × 14 mm, 0.4 mm pitch) with exposed thermal pad. Pin functions are defined per "Pin Assignment" (Page 9) and "Pin Description" (Page 14) of datasheet 002-04918 Rev. *H. All pins support 5V-tolerant I/O except analog inputs and specific clock inputs.

Key Features

Applications

Equivalent & Alternatives

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

Compared with STM32H743VI and RA6M5L20FB, CY9BF168MPMC-GNE2 provides optimized motor control integration (QPRC, DTIF, LIN PHY support) and lower-voltage flexibility (2.7 V min), making it more suitable for cost-sensitive, single-chip BLDC/HVAC implementations where LIN and encoder feedback are mandatory.

Availability

CY9BF168MPMC-GNE2 is available at Aetrix Electronics and suitable for industrial motor drives, HVAC blower control, smart power meters, and compact PLC modules requiring stable component supply, long-term lifecycle support, and qualified automotive-grade reliability.

Supply support for CY9BF168MPMC-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.

CY9BF168MPMC-GNE2 belongs to the FM4 family of high-performance ARM Cortex-M4F microcontrollers, designed specifically for deterministic real-time control in industrial motion, energy infrastructure, and building automation systems.

FAQ

What is the maximum operating frequency and does it require external clock conditioning?

The CY9BF168MPMC-GNE2 operates up to 160 MHz using its internal Main PLL, which accepts 4–48 MHz external crystal input (XTAL1/XTAL2). No external clock conditioning is required; the PLL includes built-in jitter suppression and dynamic frequency scaling. The 160 MHz clock drives the core, memories, and most peripherals, while lower-frequency domains (e.g., RTC, watchdogs) use dedicated clocks (sub-clock, CR oscillators).

How is Flash security implemented and can it prevent unauthorized firmware extraction?

Flash security uses hardware-enforced lock bits on both MainFlash and WorkFlash, preventing read-out via SWD/JTAG and blocking mass erase commands. Once enabled, code protection cannot be disabled without full chip erase. This meets IEC 62443-3-3 SL2 requirements for firmware confidentiality, though physical probing remains a theoretical side-channel risk outside the scope of this feature.

Does the device support LIN 2.1 in both master and slave modes without external transceivers?

Yes - the integrated LIN controller supports full LIN 2.1 protocol in both master and slave modes, including 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 for physical layer compliance (ISO 17987-2), as the MCU provides only the protocol engine and timing logic.

What low-power modes retain RTC functionality while minimizing current draw?

The Deep Standby RTC mode retains full RTC calendar operation, 32-byte backup registers, and VBAT-powered 32.768 kHz oscillator while drawing ≤1.2 μA (typical) from VBAT. RAM retention is optional in this mode. It supports wake-up via RTC alarm or external interrupt, making it ideal for battery-backed metering or remote sensor nodes requiring decades-long timekeeping.