Infineon Technologies CY9BF124MPMC-GNE2

Overview

CY9BF124MPMC-GNE2 from Infineon Technologies (formerly Cypress) is a 32-bit Arm® Cortex®-M3 microcontroller in the FM3 family, operating up to 72 MHz with dual-bank 256 KB Flash (240 KB upper + 16 KB lower), 32 KB SRAM (16 KB SRAM0 + 16 KB SRAM1), and integrated peripherals including 26-channel 12-bit ADC, dual 10-bit DAC, eight base timers, RTC, QPRC, and multi-protocol serial interfaces (UART/CSIO/I²C/LIN). It targets low-power embedded motor control and industrial sensing applications.

For engineers reviewing the CY9BF124MPMC-GNE2 datasheet, CY9BF124MPMC-GNE2 pinout, CY9BF124MPMC-GNE2 application, or CY9BF124MPMC-GNE2 equivalent, key selection criteria include dual-bank Flash for seamless firmware updates, 5 V-tolerant GPIOs on selected pins, hardware CRC acceleration (CRC16/CRC32), six low-power modes (including Deep Standby RTC), and LIN 2.1 compliance for automotive body electronics integration.

Technical Context

The CY9BF124MPMC-GNE2 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 features dual-operation Flash enabling concurrent read-erase-write across banks and two independent SRAM blocks (SRAM0 on I/D-code bus, SRAM1 on system bus) for deterministic real-time access.

Peripheral integration includes an 8-channel DMA controller with 32-bit addressing and burst/demand transfer modes, a quadrature position/revolution counter (QPRC) with configurable AIN/BIN/ZIN edge detection and dual 16-bit counters, and a clock supervisor (CSV) that monitors external clock integrity using internal CR oscillators to trigger reset on frequency anomaly or stoppage.

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 microcontroller applications.

Compared with STM32F103VET6 and RL78/F13, CY9BF124MPMC-GNE2 uniquely combines dual-bank Flash for safe firmware updates, integrated LIN 2.1 PHY support, and dedicated QPRC hardware-reducing BOM count and improving determinism in automotive and motor control designs.

Availability

CY9BF124MPMC-GNE2 is available at Aetrix Electronics and suitable for motor control systems, automotive body electronics, industrial sensor nodes, and smart power meters requiring stable component supply, long-term lifecycle support, and automotive-grade reliability.

Supply support for CY9BF124MPMC-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 German semiconductor manufacturer specializing in power management, automotive MCUs, and security solutions, with global manufacturing and R&D infrastructure.

The CY9BF124MPMC-GNE2 belongs to the FM3 microcontroller product line, designed specifically for cost-optimized, low-power embedded control in automotive body electronics and industrial automation where LIN connectivity and motor feedback integration are essential.

FAQ

What is the maximum operating frequency and supported clock sources?

The CY9BF124MPMC-GNE2 operates at up to 72 MHz using five selectable clock sources: external main oscillator (4–48 MHz), 32.768 kHz sub-clock, built-in 4 MHz high-speed CR oscillator, 100 kHz low-speed CR oscillator, and main PLL. The PLL can accept either the main oscillator or high-speed CR clock as input, enabling flexible frequency synthesis for different peripheral timing requirements.

Does this MCU support hardware-based LIN communication without external transceivers?

No - the CY9BF124MPMC-GNE2 integrates a LIN protocol controller compliant with LIN 2.1 but requires an external LIN transceiver (e.g., TLE7259-3GE) to drive the physical bus. The MCU handles frame generation, checksum calculation, break detection, and synchronization; the transceiver manages voltage level translation and bus driving.

How does the dual-bank Flash architecture improve firmware update reliability?

Dual-bank Flash allows one bank (e.g., upper 240 KB) to run active firmware while the other (lower 16 KB work area) is erased and reprogrammed. This enables atomic, fail-safe updates: if power loss occurs mid-update, the device boots from the intact bank, avoiding bricking. Bootloader logic can validate new firmware before switching execution banks.

Is the RTC functional in all low-power modes, and what is its power consumption?

The RTC remains operational in Sleep, Timer, RTC, and Deep Standby RTC modes, drawing as low as 0.8 μA typical from VBAT when powered by a 32.768 kHz crystal. It is disabled only in Stop and Deep Standby Stop modes. Leap year correction and alarm interrupts (configurable down to minute granularity) are retained across these modes.