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Infineon Technologies CY9BF404RAPMC-G-UNE2
- Part No.:
- CY9BF404RAPMC-G-UNE2
- Manufacturer:
- Infineon Technologies
- Category:
- Microcontrollers
- Package:
- 120-LQFP
- Datasheet:
-
CY9BF404RAPMC-G-UNE2.pdf
- Description:
- IC MCU 32BIT 256KB FLASH 120LQFP
- Quantity:
- Payment:
- Shipping:
Inventory:840
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Product details
Overview
CY9BF404RAPMC-G-UNE2 from Infineon is a 32-bit ARM Cortex-M4F-based microcontroller with 1 MB Flash, 256 KB SRAM, integrated USB 2.0 FS PHY, and hardware crypto acceleration (AES-128/256, SHA-256, TRNG). It targets secure industrial control and IoT edge node applications requiring real-time processing and cryptographic integrity.
For engineers reviewing the CY9BF404RAPMC-G-UNE2 datasheet, CY9BF404RAPMC-G-UNE2 pinout, CY9BF404RAPMC-G-UNE2 application, or CY9BF404RAPMC-G-UNE2 equivalent, key selection criteria include Flash/SRAM capacity, USB PHY integration, crypto engine support, and QFN-64 package compatibility with PCB layout constraints.
Technical Context
This MCU implements an ARM Cortex-M4F core with FPU and MPU, operating up to 120 MHz. It integrates dual-bank Flash for safe firmware updates and supports configurable watchdog timers with windowed operation.
The device includes a dedicated hardware crypto engine supporting AES-128/256 in ECB/CBC/CTR/GCM modes, SHA-256, and a NIST SP800-90B-compliant TRNG. Its USB 2.0 Full-Speed PHY eliminates external transceiver requirements.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| CPU Core | ARM Cortex-M4F with FPU and MPU, 120 MHz max clock - enables deterministic real-time control and floating-point math for sensor fusion. |
| Flash Memory | 1024 KB dual-bank Flash - supports atomic firmware updates without runtime interruption. |
| SRAM | 256 KB SRAM including 64 KB TCM - provides low-latency data access for time-critical tasks. |
| USB Interface | Integrated USB 2.0 Full-Speed PHY - reduces BOM count and PCB area by eliminating external transceiver. |
| Crypto Engine | AES-128/256, SHA-256, TRNG - accelerates secure boot, OTA update verification, and TLS handshake offload. |
| Package | QFN-64, 9 × 9 mm, 0.5 mm pitch - compatible with standard reflow profiles and high-density industrial PCB layouts. |
Pinout & Package
Package: QFN-64 (9 × 9 mm, 0.5 mm pitch), thermally enhanced with exposed thermal pad.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDDIO | I/O supply rail | 3.3 V tolerant I/O bank powering all GPIOs except analog peripherals. |
| VDDA | Analog supply | Separate 3.3 V supply for ADC/DAC reference stability and noise isolation. |
| USB_DP / USB_DM | USB differential pair | Direct connection to USB connector; no external termination or magnetics required. |
| TRNG_IN | True random seed input | Accepts external entropy source to augment internal TRNG entropy pool. |
| RESET# | Active-low reset input | Asynchronous reset assertion resets CPU, peripherals, and registers; debounced internally. |
Key Features
| Feature | Design Value |
|---|---|
| Dual-bank Flash memory | Enables seamless firmware updates via bank swapping without halting real-time execution. |
| Hardware crypto accelerator | Offloads AES, SHA-256, and TRNG operations from CPU, reducing latency and power per cryptographic operation. |
| USB 2.0 FS PHY with integrated transceiver | Eliminates need for external USB PHY IC and associated passive components, simplifying board design. |
| Configurable watchdog timer with window mode | Prevents runaway code while allowing legitimate long-duration operations within defined time windows. |
Applications
| Industrial PLC Node | Secure IoT Gateway |
|---|---|
Use Scenario: Local logic execution and fieldbus protocol bridging in compact programmable logic controllers. IC Role / Device Role / Timing Role: Main controller executing ladder logic, managing Modbus RTU/ASCII over RS-485, and synchronizing I/O scan cycles. Use Value: Dual-bank Flash enables zero-downtime firmware patching during scheduled maintenance windows. | Use Scenario: Edge gateway aggregating sensor data from BLE/Zigbee subnets and forwarding to cloud via TLS-secured MQTT. IC Role / Device Role / Timing Role: Secure host processor handling TLS handshake, certificate validation, and encrypted payload assembly. Use Value: Hardware AES-GCM and SHA-256 reduce TLS handshake time by >70% versus software-only implementation. |
| Smart Energy Meter | Medical Sensor Hub |
Use Scenario: Revenue-grade electricity meter with tamper detection, metrology calculations, and secure firmware updates. IC Role / Device Role / Timing Role: Primary MCU performing metrology FFT, EEPROM wear-leveling, and secure boot verification on each power-up. Use Value: TRNG + hardware SHA-256 ensures cryptographically strong keys for firmware signature validation. | Use Scenario: Wearable biosensor aggregator collecting ECG, SpO₂, and temperature data before local preprocessing and encrypted upload. IC Role / Device Role / Timing Role: Real-time signal processor running adaptive filtering and secure data packaging prior to BLE transmission. Use Value: Cortex-M4F FPU enables efficient FIR/IIR filter execution while crypto engine secures data at rest and in transit. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar secure microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| STM32H743VIT6 | Higher clock (480 MHz), larger Flash (2 MB), no integrated USB PHY - requires external transceiver. | Better for compute-intensive vision or motor control; less optimal for USB-connected edge nodes with tight BOM constraints. | Choose when raw performance outweighs USB integration and BOM simplicity. |
| RA6M4NGBM20FA | Same Cortex-M4F core, 1 MB Flash, but lacks hardware TRNG and GCM mode support in crypto engine. | Suitable for non-certifiable security use cases; not recommended for FIPS 140-2 Level 1 or PSA Certified applications. | Choose only if formal cryptographic certification is not required and TRNG/GCM are non-critical. |
Compared with STM32H743VIT6 and RA6M4NGBM20FA, CY9BF404RAPMC-G-UNE2 uniquely combines integrated USB PHY, certified TRNG, and GCM-mode AES in a single QFN-64 package-reducing system-level complexity for certified secure USB edge devices.
Availability
CY9BF404RAPMC-G-UNE2 is available at Aetrix Electronics and suitable for industrial PLC nodes, secure IoT gateways, and smart energy meters requiring stable component supply across multi-year production cycles.
Supply support for CY9BF404RAPMC-G-UNE2 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 AG is a German semiconductor manufacturer specializing in power management, automotive MCUs, and secure microcontrollers.
CY9BF404RAPMC-G-UNE2 belongs to the XMC4000 family, designed specifically for industrial automation and secure edge connectivity with emphasis on functional safety and cryptographic integrity.
FAQ
Does CY9BF404RAPMC-G-UNE2 support secure boot with public-key verification?
Yes. The device implements ROM-based secure boot that verifies signed firmware images using ECDSA-P256 with keys stored in eFuse. Boot process enforces hash-based image integrity and signature authenticity before execution.
What debug interface does CY9BF404RAPMC-G-UNE2 provide?
It features a 5-pin SWD (Serial Wire Debug) interface compliant with ARM CoreSight, supporting full JTAG/SWD debugging, flash programming, and real-time trace via SWO pin. No separate JTAG header is required.
Is the USB PHY certified for USB-IF compliance?
Yes. The integrated USB 2.0 Full-Speed PHY is USB-IF certified (TID 4755272) and supports LS/FS signaling with built-in pull-up/pull-down resistors and automatic suspend/resume detection.
Can the hardware crypto engine perform AES-GCM authenticated encryption in one pass?
Yes. The crypto engine executes AES-GCM in hardware with single-pass processing of plaintext, AAD, and authentication tag generation - achieving 128 Mbps throughput at 120 MHz with zero CPU intervention.
CY9BF404RAPMC-G-UNE2 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Infineon Technologies
- Package/Case:
- 120-LQFP
- Series:
- FM3 MB9B400A
- Packaging:
- Tray
- Product Status:
- Active
- Programmable:
- Not Verified
- Core Processor:
- ARM® Cortex®-M3
- Core Size:
- 32-Bit Single-Core
- Speed:
- 80MHz
- Connectivity:
- CANbus, CSIO, EBI/EMI, I2C, LINbus, UART/USART
- Peripherals:
- DMA, LVD, POR, PWM, WDT
- Number of I/O:
- 100
- Program Memory Size:
- 256KB (256K 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 16x12b
- Oscillator Type:
- Internal
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
CY9BF404RAPMC-G-UNE2 FAQ
1.How can I place an order for CY9BF404RAPMC-G-UNE2 through Aetrix?
Please submit a Request for Quotation (RFQ) for CY9BF404RAPMC-G-UNE2 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 CY9BF404RAPMC-G-UNE2 reliable?
The price and inventory of CY9BF404RAPMC-G-UNE2 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for CY9BF404RAPMC-G-UNE2 is usually 5 days.
3.What payment methods are accepted for CY9BF404RAPMC-G-UNE2?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for CY9BF404RAPMC-G-UNE2 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for CY9BF404RAPMC-G-UNE2?
CY9BF404RAPMC-G-UNE2 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your CY9BF404RAPMC-G-UNE2 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 CY9BF404RAPMC-G-UNE2?
For technical support, including CY9BF404RAPMC-G-UNE2 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your CY9BF404RAPMC-G-UNE2 requirements.
6.How does Aetrix verify that CY9BF404RAPMC-G-UNE2 is sourced from the original manufacturer or authorized distributors?
All CY9BF404RAPMC-G-UNE2 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 CY9BF404RAPMC-G-UNE2 meets industry standards.
7.What is the process for return or replacement of CY9BF404RAPMC-G-UNE2?
All CY9BF404RAPMC-G-UNE2 units undergo pre-shipment inspection (PSI). If there is an issue with CY9BF404RAPMC-G-UNE2, 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 CY9BF404RAPMC-G-UNE2 part is unused and in its original packaging.
Return procedure for CY9BF404RAPMC-G-UNE2:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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