Infineon Technologies CY9BF124KPMC-G-MNE2
- Part No.:
- CY9BF124KPMC-G-MNE2
- Manufacturer:
- Infineon Technologies
- Category:
- Microcontrollers
- Package:
- 48-LQFP
- Datasheet:
-
CY9BF124KPMC-G-MNE2.pdf
- Description:
- IC MCU 32BIT 288KB FLASH 48LQFP
- Quantity:
- Payment:

- Shipping:

Inventory:2,500
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Product details
Overview
CY9BF124KPMC-G-MNE2 from Infineon Technologies (formerly Cypress) is a 32-bit Arm® Cortex®-M3 microcontroller with 256 KB dual-bank Flash, 32 KB SRAM (16 KB SRAM0 + 16 KB SRAM1), and operation up to 72 MHz. It integrates UART/CSIO/I²C/LIN serial interfaces, 26-channel 12-bit ADC (0.8 µs conversion), dual 10-bit DAC, eight base timers, RTC, QPRC, and six low-power modes - deployed in motor control and industrial sensor nodes.
For engineers reviewing the CY9BF124KPMC-G-MNE2 datasheet, CY9BF124KPMC-G-MNE2 pinout, CY9BF124KPMC-G-MNE2 application, or CY9BF124KPMC-G-MNE2 equivalent, key selection criteria include dual-bank Flash for safe firmware updates, 5 V-tolerant I/O on selected pins, hardware CRC accelerator (CRC16/CRC32), SWJ-DP debug interface, and LIN 2.1 compliance for automotive body electronics.
Technical Context
The device implements an Arm Cortex-M3 r2p1 core with NVIC supporting 48 peripheral interrupts and 16 priority levels, plus a 24-bit SysTick timer for RTOS scheduling. Memory subsystem includes dual-operation Flash enabling concurrent read-erase-write across upper (240 KB) and lower (16 KB main + 32 KB work) banks, and two independent SRAM blocks mapped to I/D-code and system buses.
Peripheral architecture features eight-channel DMA with 32-bit addressing, multi-function serial interfaces configurable per channel as UART/CSIO/LIN/I²C, and dedicated motor-control blocks including PWM, dead-time insertion, and A/D activation triggers - all synchronized via shared clock domains derived from five selectable sources (main PLL, external oscillators, CR oscillators).
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| CPU Core | Arm Cortex-M3 r2p1, 72 MHz max - deterministic real-time execution with hardware divide and Thumb-2 instruction set. |
| Flash Memory | 256 KB dual-bank (240 KB upper + 16 KB lower main + 32 KB lower work) - enables background firmware update without halting application. |
| SRAM | 32 KB total: 16 KB SRAM0 (I/D bus), 16 KB SRAM1 (system bus) - supports zero-wait-state code/data separation. |
| ADC | 26-channel 12-bit SAR, 0.8 µs conversion @ 5 V - supports priority/scanning modes with 16-step FIFO for sensor data acquisition. |
| DAC | 2-channel 10-bit R-2R - provides analog output for calibration signals or actuator biasing without external components. |
| Low-Power Modes | Six modes including Deep Standby RTC/Stop with RAM retention options - achieves sub-µA wake-up current with 32.768 kHz sub-clock. |
| Clock Sources | Five sources: 4–48 MHz main oscillator, 32.768 kHz sub-clock, 4 MHz/100 kHz CR oscillators, Main PLL - enables robust clock supervision and failover. |
| Debug Interface | Serial Wire JTAG Debug Port (SWJ-DP) - full visibility into CPU state, memory, and peripherals during development and field diagnostics. |
Pinout & Package
Package: 80-pin LQFP (12 mm × 12 mm, 0.5 mm pitch), RoHS-compliant, moisture sensitivity level 3.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VCC / VSS | Power supply / Ground | Core and I/O domain supply (2.7–5.5 V); separate VCC/VSS pairs reduce noise coupling in mixed-signal operation. |
| XTAL / EXTAL | Main clock oscillator input/output | Drives 4–48 MHz crystal or external clock source; critical for high-accuracy timing and PLL reference. |
| OSC32 / OSC32B | Sub-clock oscillator input/output | Connects 32.768 kHz crystal for RTC and low-power wake-up; enables calendar timekeeping during Deep Standby. |
| PA0–PA15, PB0–PB15, etc. | Multi-function GPIO | Up to 65 high-speed I/O pins with port relocate, pull-up control, and 5 V tolerance on designated pins - simplifies PCB layout and signal routing flexibility. |
| AD0–AD25 | Analog input channels | Direct connection to 12-bit ADC inputs; supports scanning and priority conversion for multi-sensor systems. |
| DA0 / DA1 | Analog output channels | 10-bit R-2R DAC outputs - used for programmable reference generation or analog feedback control loops. |
| TXD0 / RXD0, etc. | UART/CSIO/LIN/I²C channel I/O | Configurable per-channel serial interface pins; ch.4 supports hardware RTS/CTS flow control for reliable industrial comms. |
| SWDIO / SWCLK | Debug interface signals | Two-pin Serial Wire Debug interface - minimal footprint debug access compatible with standard ARM tools. |
Key Features
| Feature | Design Value |
|---|---|
| Dual-bank Flash memory | Enables over-the-air firmware updates with zero downtime: one bank executes while the other is erased/written. |
| Hardware CRC accelerator | Offloads CCITT CRC16 and IEEE-802.3 CRC32 computation from CPU - reduces latency in communication stack integrity checks. |
| LIN 2.1 compliant interface | Integrated LIN master/slave with programmable break field (13–16 bit) and delimiter (1–4 bit) - meets automotive body control requirements. |
| Quadrature Position Counter (QPRC) | Two independent 16-bit position + 16-bit revolution counters with A/B/Z input edge configuration - eliminates need for external encoder ICs in motor feedback. |
| Clock Supervision (CSV) | Monitors external clock frequency and stop conditions using internal CR oscillators - triggers reset/interrupt on failure for fail-safe operation. |
| Low-voltage detection (LVD) | Two-stage monitoring (LVD1 interrupt, LVD2 reset) at VCC - prevents erratic behavior during brown-out conditions in battery-powered systems. |
Applications
| Industrial Motor Control | Automotive Body Electronics |
|---|---|
Use Scenario: Closed-loop BLDC motor drive in HVAC blowers or pump controllers requiring precise timing and analog feedback. IC Role / Device Role / Timing Role: Real-time motor commutation controller with PWM generation, ADC-triggered current sensing, and QPRC-based rotor position tracking. Use Value: Integrated dead-time insertion, A/D activation compare, and 72 MHz deterministic execution eliminate external timing logic and reduce BOM count. | Use Scenario: Door module controlling window lift, mirror adjustment, and seat position with LIN communication to central ECU. IC Role / Device Role / Timing Role: LIN 2.1 slave node managing local actuators and reporting status via standardized protocol frames. Use Value: On-chip LIN transceiver support, programmable break timing, and 5 V-tolerant I/O simplify interface to legacy automotive harnesses. |
| Smart Sensor Node | Energy Monitoring System |
Use Scenario: Battery-powered environmental sensor hub collecting temperature, humidity, and motion data for wireless transmission. IC Role / Device Role / Timing Role: Low-power data acquisition unit with RTC wake-up, ADC scanning, and deep standby retention of sensor history. Use Value: Sub-µA Deep Standby RTC mode with RAM retention extends battery life beyond 5 years on coin-cell power. | Use Scenario: DIN-rail mounted electricity meter measuring voltage, current, and power factor with isolation and tamper detection. IC Role / Device Role / Timing Role: High-accuracy metrology front-end controller synchronizing sampling to line cycle via RTC and external zero-crossing input. Use Value: 12-bit ADC with 0.8 µs conversion and hardware CRC ensure fast, integrity-checked energy calculations under noisy industrial EMI. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar 32-bit Arm Cortex-M3 microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| STM32F103VCT6 | Single-bank 256 KB Flash, no dual-operation capability; lacks LIN 2.1 support; 72 MHz Cortex-M3 with 48 KB SRAM. | Targeted at general-purpose industrial control where firmware update safety is less critical than cost. | Select when LIN is unused and dual-bank Flash is not required; verify external CRC implementation needed. |
| RA4M1 (R7FA4M1AB3CFM) | Arm Cortex-M4F core, 100 MHz, 256 KB Flash, 32 KB SRAM; includes capacitive touch IP but no QPRC or LIN. | Focused on HMI-rich applications like smart home panels; lacks motor encoder interface and automotive protocol support. | Choose for floating-point math or touch UI needs; avoid if QPRC or LIN 2.1 is mandatory. |
Compared with STM32F103VCT6 and RA4M1, CY9BF124KPMC-G-MNE2 uniquely combines dual-bank Flash, LIN 2.1, QPRC, and CRC acceleration - making it optimal for safety-aware automotive body modules and real-time motor control where firmware integrity and encoder integration are non-negotiable.
Availability
CY9BF124KPMC-G-MNE2 is available at Aetrix Electronics and suitable for industrial motor control, automotive body electronics, smart sensor nodes, and energy monitoring systems requiring stable component supply across long-lifecycle deployments.
Supply support for CY9BF124KPMC-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 is a global semiconductor leader headquartered in Munich, Germany, specializing in power management, automotive MCUs, and security solutions.
This part belongs to the FM3 family of 32-bit Arm Cortex-M3 microcontrollers, designed specifically for cost-sensitive, low-power embedded control applications demanding high peripheral integration and functional safety readiness.
FAQ
What is the maximum operating frequency and supported voltage range?
The CY9BF124KPMC-G-MNE2 operates at up to 72 MHz and supports a wide supply voltage range of 2.7 V to 5.5 V. This allows direct interfacing with both 3.3 V logic and legacy 5 V systems without level shifters, and maintains stable performance across battery discharge curves in portable equipment.
Does this MCU support in-system programming and secure firmware updates?
Yes - its dual-bank Flash architecture enables true in-system programming: one bank runs active firmware while the other is erased and reprogrammed via UART, I²C, or SWD. Code protection features include flash security bits and unique 41-bit device ID to prevent unauthorized cloning or firmware extraction.
How many serial communication interfaces does it provide, and what protocols are supported?
The MCU integrates up to eight multi-function serial channels, each configurable as UART, CSIO, LIN, or I²C. Four channels include 16×9-bit FIFOs; LIN support complies fully with version 2.1, including programmable break field (13–16 bit) and delimiter (1–4 bit) - essential for automotive diagnostic and actuator networks.
What low-power modes are available, and how quickly can it wake from Deep Standby?
Six low-power modes include Sleep, Timer, RTC, Stop, Deep Standby RTC, and Deep Standby Stop - all configurable with optional RAM retention. Wake-up from Deep Standby RTC occurs within 10 µs using the 32.768 kHz sub-clock, enabling precise periodic sensor sampling at ultra-low average current (<1 µA).
CY9BF124KPMC-G-MNE2 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Infineon Technologies
- Package/Case:
- 48-LQFP
- Series:
- FM3 MB9B120M
- Packaging:
- Tray
- Product Status:
- Active
- Programmable:
- Not Verified
- Core Processor:
- ARM® Cortex®-M3
- Core Size:
- 32-Bit Single-Core
- Speed:
- 72MHz
- Connectivity:
- CSIO, I2C, LINbus, UART/USART
- Peripherals:
- DMA, LVD, POR, PWM, WDT
- Number of I/O:
- 35
- Program Memory Size:
- 288KB (288K x 8)
- Program Memory Type:
- FLASH
- EEPROM Size:
- -
- RAM Size:
- 32K x 8
- Voltage - Supply (Vcc/Vdd):
- 2.7V ~ 5.5V
- Data Converters:
- A/D 14x12b; D/A 2x10b
- Oscillator Type:
- Internal
- Operating Temperature:
- -40°C ~ 105°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
CY9BF124KPMC-G-MNE2 FAQ
1.How can I place an order for CY9BF124KPMC-G-MNE2 through Aetrix?
Please submit a Request for Quotation (RFQ) for CY9BF124KPMC-G-MNE2 on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.
2.Are the price and stock information for CY9BF124KPMC-G-MNE2 reliable?
The price and inventory of CY9BF124KPMC-G-MNE2 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for CY9BF124KPMC-G-MNE2 is usually 5 days.
3.What payment methods are accepted for CY9BF124KPMC-G-MNE2?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for CY9BF124KPMC-G-MNE2 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for CY9BF124KPMC-G-MNE2?
CY9BF124KPMC-G-MNE2 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your CY9BF124KPMC-G-MNE2 order is processed, you will receive an email with the shipment details and tracking number.
Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.
5.How can I obtain technical support or documentation for CY9BF124KPMC-G-MNE2?
For technical support, including CY9BF124KPMC-G-MNE2 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your CY9BF124KPMC-G-MNE2 requirements.
6.How does Aetrix verify that CY9BF124KPMC-G-MNE2 is sourced from the original manufacturer or authorized distributors?
All CY9BF124KPMC-G-MNE2 products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that CY9BF124KPMC-G-MNE2 meets industry standards.
7.What is the process for return or replacement of CY9BF124KPMC-G-MNE2?
All CY9BF124KPMC-G-MNE2 units undergo pre-shipment inspection (PSI). If there is an issue with CY9BF124KPMC-G-MNE2, returns or replacements are accepted under the following conditions:
1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.
2.The issue is reported within 90 days of delivery.
3.The CY9BF124KPMC-G-MNE2 part is unused and in its original packaging.
Return procedure for CY9BF124KPMC-G-MNE2:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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