Infineon Technologies CY9BF124MPMC-G-MNCGE2

Overview

CY9BF124MPMC-G-MNCGE2 from Infineon Technologies (formerly Cypress) is a 32-bit Arm® Cortex®-M3 microcontroller with dual-bank 256 KB Flash, 32 KB SRAM, 72 MHz max CPU frequency, and integrated peripherals including 26-channel 12-bit ADC, dual DAC, eight UART/CSIO/I²C/LIN serial interfaces, RTC, QPRC, and six low-power modes. It targets embedded motor control and industrial sensor nodes requiring real-time responsiveness and code security.

For engineers reviewing the CY9BF124MPMC-G-MNCGE2 datasheet, CY9BF124MPMC-G-MNCGE2 pinout, CY9BF124MPMC-G-MNCGE2 application, or CY9BF124MPMC-G-MNCGE2 equivalent, key selection criteria include dual-bank Flash update capability, 5 V-tolerant I/O support, hardware CRC acceleration (CCITT CRC16 & IEEE-802.3 CRC32), and dual watchdog timers with independent CR oscillator clocking for fail-safe operation in safety-critical subsystems.

Technical Context

The device implements an Arm Cortex-M3 r2p1 core with NVIC supporting 48 peripheral interrupts and 16 priority levels, coupled with a 24-bit SysTick timer for RTOS scheduling. Its memory subsystem includes two independent SRAM banks (SRAM0 on I/D-code bus, SRAM1 on system bus) enabling concurrent CPU and DMA access.

Peripheral integration centers on deterministic timing control: eight base timers support PWM, PPG, reload, and PWC modes; quadrature position/revolution counters (QPRC) provide 16-bit position and revolution tracking with configurable AIN/BIN/ZIN edge detection; and the multi-function timer delivers input capture, output compare, waveform generation, and A/D activation triggers for closed-loop motor control.

Key Specifications

Pinout & Package

Package: 80-pin LQFP (12 mm × 12 mm, 0.5 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 Arm Cortex-M3 microcontroller applications.

Compared with STM32F103VET6 and RA4M1, CY9BF124MPMC-G-MNCGE2 uniquely combines dual-bank Flash, LIN 2.1 hardware support, and integrated QPRC-making it optimal for cost-sensitive, safety-aware motor and automotive subsystems requiring zero-downtime updates and deterministic encoder interfacing.

Availability

CY9BF124MPMC-G-MNCGE2 is available at Aetrix Electronics and suitable for industrial motor control, automotive body electronics, smart sensor hubs, and energy monitoring systems requiring stable component supply, long-term lifecycle assurance, and traceable sourcing.

Supply support for CY9BF124MPMC-G-MNCGE2 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, and industrial control ICs, with global manufacturing and quality certification to ISO/TS 16949 and ISO 9001.

The CY9BF124MPMC-G-MNCGE2 belongs to the FM3 family of 32-bit microcontrollers designed specifically for cost-optimized, low-power embedded control applications in motor drives, building automation, and automotive subsystems.

FAQ

What is the maximum operating frequency and supported clock sources?

The CY9BF124MPMC-G-MNCGE2 operates up to 72 MHz using five selectable clock sources: external main oscillator (4–48 MHz), external 32.768 kHz RTC crystal, built-in 4 MHz high-speed CR oscillator, built-in 100 kHz low-speed CR oscillator, and Main PLL with programmable multiplication factor. The PLL supports both external and internal clock inputs, enabling flexible clock tree configuration for noise-sensitive applications.

Does this MCU support in-system programming and secure firmware updates?

Yes. The dual-bank Flash architecture allows full in-system programming: one bank executes active firmware while the other is erased and reprogrammed via UART, I²C, or SWD interface. Code protection features include flash lock bits and unique 41-bit device ID, preventing unauthorized firmware extraction or cloning during field updates.

How many I/O pins are 5 V tolerant, and how is pin function allocation managed?

Selected GPIO pins-including P00–P07, P10–P17, P20–P27, and P30–P37-are 5 V tolerant, verified per datasheet Section 5 ("I/O Circuit Type"). Pin function allocation is dynamically configurable via the built-in port relocate function, allowing peripheral signals (e.g., UART0_TX, I²C0_SCL) to be assigned to multiple physical pins without PCB redesign.

What low-power modes are available, and what is the lowest achievable current draw?

Six low-power modes are supported: Sleep, Timer, RTC, Stop, Deep Standby RTC, and Deep Standby Stop. In Deep Standby RTC mode with RAM retention disabled, typical current consumption is 0.8 µA at 3.3 V and 25 °C. RTC operation continues autonomously using the 32.768 kHz sub-clock, enabling wake-up intervals up to 64 seconds without CPU intervention.