Infineon Technologies CY9AFB41LBPMC1-G-JNE2
- Part No.:
- CY9AFB41LBPMC1-G-JNE2
- Manufacturer:
- Infineon Technologies
- Category:
- Microcontrollers
- Package:
- 64-LQFP
- Datasheet:
-
CY9AFB41LBPMC1-G-JNE2.pdf
- Description:
- IC MCU 32BIT 96KB FLASH 64LQFP
- Quantity:
- Payment:

- Shipping:

Inventory:4,100
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Product details
Overview
CY9AFB41LBPMC1-G-JNE2 from Infineon Technologies (formerly Cypress) is a 32-bit ARM® Cortex®-M3 microcontroller with 256 KB dual-bank Flash, 32 KB SRAM, USB 2.0 Full-Speed device/host interface, 12-bit ADC (24 channels), and LCD controller supporting 40×8 SEG/COM. It operates at up to 40 MHz, supports six low-power modes, and targets embedded control in industrial HMI and portable instrumentation.
For engineers reviewing the CY9AFB41LBPMC1-G-JNE2 datasheet, CY9AFB41LBPMC1-G-JNE2 pinout, CY9AFB41LBPMC1-G-JNE2 application, or CY9AFB41LBPMC1-G-JNE2 equivalent, key selection criteria include dual-bank Flash for seamless firmware updates, integrated USB host/device capability without external PHY, LCD drive support with internal bias resistors, and hardware CRC acceleration for data integrity in field-deployed systems.
Technical Context
This MCU implements the ARM Cortex-M3 r2p1 core with NVIC supporting 48 peripheral interrupts and 16 priority levels, plus a 24-bit SysTick timer for RTOS scheduling. Its memory subsystem includes two independent SRAM banks (SRAM0 on I/D-code buses, SRAM1 on system bus) enabling concurrent CPU and DMA access.
The peripheral set integrates a 8-channel DMA controller with 32-bit addressing, HDMI-CEC/remote receiver (2 channels), RTC with leap-year correction, and dual watchdogs - one hardware-based on 100 kHz CR oscillator for deep-sleep supervision. Clock supervision uses built-in CR oscillators to detect external clock stop/frequency anomaly.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core | ARM Cortex-M3 r2p1, 40 MHz max - enables deterministic real-time execution with Thumb-2 instruction set and hardware divide. |
| Flash Memory | 256 KB dual-bank (240 KB upper + 16 KB lower), 0-wait-state read - allows background write/erase during code execution for OTA updates. |
| SRAM | 32 KB total (16 KB SRAM0 + 16 KB SRAM1), split bus architecture - isolates instruction/data traffic from system peripherals to reduce contention. |
| USB Interface | Full-Speed device/host with built-in PLL, 6 endpoints (EP0–EP5), double-buffered EP1–EP5 - eliminates need for external USB transceiver in dual-role applications. |
| ADC | Two 12-bit SAR units, 2.0 μs conversion @ 2.7–3.6 V, 24-channel input multiplexer - supports simultaneous sampling of analog sensors in motor control or power monitoring. |
| Low-Power Modes | Six modes including Deep Standby RTC/Stop with RAM retention options - extends battery life in portable HMIs while preserving context across wake events. |
| CRC Accelerator | Hardware CCITT CRC16 and IEEE-802.3 CRC32 - offloads integrity checks from CPU during firmware update or sensor data logging. |
Pinout & Package
Package: 100-pin LQFP (14 mm × 14 mm, 0.5 mm pitch), RoHS-compliant, moisture sensitivity level 3.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VCC, VSS | Power supply and ground | Dual VCC domains (core/analog) with dedicated VSS pins ensure noise isolation for ADC and USB PHY operation. |
| XTAL1/XTAL2 | Main crystal oscillator input/output | Supports 4–48 MHz external crystal; required for USB timing accuracy and high-speed peripheral operation. |
| OSC32IN/OSC32OUT | 32.768 kHz sub-clock input/output | Drives RTC and Watch Counter independently; enables timekeeping during Stop/Deep Standby modes. |
| USBDP/USBDM | USB 2.0 Full-Speed differential pair | Integrated transceiver with pull-up resistor control - connects directly to USB connector without external components. |
| SEG0–SEG39, COM0–COM7 | LCD segment/common drivers | Direct drive for 40×8 static or multiplexed LCD; internal voltage divider sets bias (VV0–VV4) for contrast control. |
Key Features
| Feature | Design Value |
|---|---|
| Dual-bank Flash memory | Enables in-application programming (IAP) with zero downtime: erase/write one bank while executing from the other. |
| USB device/host dual mode | Single silicon instance supports both host enumeration (e.g., USB flash drive reader) and device mode (e.g., HID keyboard), reducing BOM count. |
| Hardware CRC accelerator | Reduces CPU load by >90% for CRC32 computation on 1 KB data blocks - critical for secure firmware validation in field upgrades. |
| RTC with leap-year correction | Maintains accurate calendar time across century boundaries without software intervention, essential for data-logging timestamps. |
| Port relocate function | Allows dynamic remapping of peripheral functions (e.g., UART, I²C) to alternate GPIO pins - simplifies PCB layout and avoids signal congestion. |
Applications
| Industrial HMI Panel | Portable Medical Instrument |
|---|---|
Use Scenario: Touch-enabled display panel controlling PLC I/O and reporting status via USB CDC. IC Role / Device Role / Timing Role: Main controller running FreeRTOS, driving 40×8 LCD, handling USB device communication and ADC-based sensor monitoring. Use Value: Dual-bank Flash enables field firmware updates without halting HMI operation; integrated USB eliminates external transceiver cost and layout complexity. | Use Scenario: Battery-powered blood glucose meter with LCD display, button interface, and USB data export. IC Role / Device Role / Timing Role: System-on-chip managing LCD, 12-bit ADC for sensor signal acquisition, RTC for timestamped readings, and USB device for PC sync. Use Value: Six low-power modes extend battery life beyond 12 months; internal LCD bias resistors remove four external components per display. |
| Smart Energy Meter | Home Automation Gateway |
Use Scenario: DIN-rail mounted meter with LCD, isolated RS-485, and USB configuration port. IC Role / Device Role / Timing Role: Primary MCU acquiring metrology ADC samples, updating LCD, managing USB configuration, and supervising power rails via LVD. Use Value: Hardware watchdog with CR oscillator ensures fail-safe reset during brown-out; CRC accelerator validates firmware integrity after remote updates. | Use Scenario: Zigbee-to-USB gateway aggregating sensor data and exposing it as virtual COM port. IC Role / Device Role / Timing Role: USB host for connected peripherals (e.g., flash drives), USB device for PC-side configuration, and multi-protocol serial interface (UART/I²C/CSIO) for radio modules. Use Value: Dual USB role eliminates need for separate host/device ICs; 8-channel DMA handles concurrent USB and radio data transfers without CPU overhead. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| STM32F103VET6 | ARM Cortex-M3, 512 KB Flash, no native USB host, no LCD controller, no HDMI-CEC | Requires external USB PHY for host mode; lacks integrated LCD drive and CEC protocol stack hardware | Choose when USB host functionality is unnecessary and higher Flash density is prioritized over integrated peripherals. |
| RA4M1 (R7FA4M1AB3CFM) | ARM Cortex-M4F, 256 KB Flash, USB FS device/host, no LCD controller, no CEC | Higher precision FPU but missing LCD driver and HDMI-CEC hardware - needs external LCD bias and CEC transceiver | Prefer when floating-point math or TrustZone security is required, and LCD/CEC are handled externally. |
Compared with STM32F103VET6 and RA4M1, CY9AFB41LBPMC1-G-JNE2 uniquely integrates LCD controller with internal bias, HDMI-CEC transceiver, and dual-mode USB on a single die - reducing component count and board area in space-constrained HMI and consumer remote-control applications.
Availability
CY9AFB41LBPMC1-G-JNE2 is available at Aetrix Electronics and suitable for industrial HMI panels, portable medical instruments, smart energy meters, and home automation gateways requiring stable component supply and long-term lifecycle support.
Supply support for CY9AFB41LBPMC1-G-JNE2 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 industrial control solutions, with global R&D and manufacturing infrastructure.
CY9AFB41LBPMC1-G-JNE2 belongs to the FM3 family of 32-bit ARM Cortex-M3 microcontrollers, designed specifically for cost-sensitive, low-power embedded controllers requiring rich analog and human-interface peripherals in industrial and consumer equipment.
FAQ
Does CY9AFB41LBPMC1-G-JNE2 support USB host mode without external components?
Yes. The MCU integrates a full-speed USB 2.0 host controller with built-in PLL and transceiver circuitry. USBDP/USBDM pins connect directly to a USB Type-A receptacle; no external PHY or level-shifter is required for standard host operation with low/full-speed devices.
What LCD configurations does the built-in LCDC support?
The LCDC supports static and multiplexed displays up to 40 segments × 8 commons. It provides programmable bias voltage generation (VV0–VV4), internal dividing resistors, and blinking control. COM pin count is configurable for 4- or 8-line operation, and all SEG/COM outputs are CMOS-compatible with 5 V tolerance on selected pins.
Can the dual-bank Flash be used for atomic firmware updates?
Yes. The dual-bank architecture allows erasing and programming the lower bank (32 KB work area) while executing code from the upper bank (240 KB main area). This enables safe, interruptible firmware updates with guaranteed rollback capability using boot loader logic stored in protected sectors.
Is hardware flow control supported on any UART channel?
No. Hardware flow control (CTS/RTS) is explicitly excluded from CY9AFB41LBPMC1-G-JNE2 per the FM3 Peripheral Manual. Only UART channel 4 supports this feature in higher variants (e.g., CY9AFB42LB); this part relies on software handshaking or DMA-driven buffering for reliable serial throughput.
CY9AFB41LBPMC1-G-JNE2 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Infineon Technologies
- Package/Case:
- 64-LQFP
- Series:
- FM3 MB9AB40NB
- Packaging:
- Tray
- Product Status:
- Active
- Programmable:
- Not Verified
- Core Processor:
- ARM® Cortex®-M3
- Core Size:
- 32-Bit Single-Core
- Speed:
- 40MHz
- Connectivity:
- CSIO, I2C, UART/USART, USB
- Peripherals:
- DMA, LCD, LVD, POR, PWM, WDT
- Number of I/O:
- 51
- Program Memory Size:
- 96KB (96K x 8)
- Program Memory Type:
- FLASH
- EEPROM Size:
- -
- RAM Size:
- 16K x 8
- Voltage - Supply (Vcc/Vdd):
- 1.65V ~ 3.6V
- Data Converters:
- A/D 12x12b
- Oscillator Type:
- Internal
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
CY9AFB41LBPMC1-G-JNE2 FAQ
1.How can I place an order for CY9AFB41LBPMC1-G-JNE2 through Aetrix?
Please submit a Request for Quotation (RFQ) for CY9AFB41LBPMC1-G-JNE2 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 CY9AFB41LBPMC1-G-JNE2 reliable?
The price and inventory of CY9AFB41LBPMC1-G-JNE2 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for CY9AFB41LBPMC1-G-JNE2 is usually 5 days.
3.What payment methods are accepted for CY9AFB41LBPMC1-G-JNE2?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for CY9AFB41LBPMC1-G-JNE2 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for CY9AFB41LBPMC1-G-JNE2?
CY9AFB41LBPMC1-G-JNE2 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your CY9AFB41LBPMC1-G-JNE2 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 CY9AFB41LBPMC1-G-JNE2?
For technical support, including CY9AFB41LBPMC1-G-JNE2 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your CY9AFB41LBPMC1-G-JNE2 requirements.
6.How does Aetrix verify that CY9AFB41LBPMC1-G-JNE2 is sourced from the original manufacturer or authorized distributors?
All CY9AFB41LBPMC1-G-JNE2 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 CY9AFB41LBPMC1-G-JNE2 meets industry standards.
7.What is the process for return or replacement of CY9AFB41LBPMC1-G-JNE2?
All CY9AFB41LBPMC1-G-JNE2 units undergo pre-shipment inspection (PSI). If there is an issue with CY9AFB41LBPMC1-G-JNE2, 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 CY9AFB41LBPMC1-G-JNE2 part is unused and in its original packaging.
Return procedure for CY9AFB41LBPMC1-G-JNE2:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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