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Infineon Technologies CY9AFB42NBPMC-G-JNE2
- Part No.:
- CY9AFB42NBPMC-G-JNE2
- Manufacturer:
- Infineon Technologies
- Category:
- Microcontrollers
- Package:
- 100-LQFP
- Datasheet:
-
CY9AFB42NBPMC-G-JNE2.pdf
- Description:
- IC MCU 32BIT 160KB FLASH 100LQFP
- Quantity:
- Payment:
- Shipping:
Inventory:1,936
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Product details
Overview
CY9AFB42NBPMC-G-JNE2 from Infineon Technologies (formerly Cypress) is a 32-bit ARM® Cortex®-M3 microcontroller with dual-bank flash (240 KB + 16 KB), 32 KB SRAM (16 KB SRAM0 + 16 KB SRAM1), USB 2.0 Full-Speed device/host interface, and integrated LCD controller supporting up to 40×8 segments. It operates at up to 40 MHz, supports six low-power modes including Deep Standby RTC, and targets embedded motor control and industrial HMI applications.
For engineers reviewing the CY9AFB42NBPMC-G-JNE2 datasheet, CY9AFB42NBPMC-G-JNE2 pinout, CY9AFB42NBPMC-G-JNE2 application, or CY9AFB42NBPMC-G-JNE2 equivalent, key selection criteria include dual-operation flash architecture for seamless firmware updates, hardware flow control on UART ch.4, 24-channel 12-bit ADC with 2.0 μs conversion time, and 83 GPIOs with port relocation in 100-pin LQFP package.
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 features independent I-code/D-code buses for SRAM0 and system bus for SRAM1, enabling concurrent CPU and DMA access without contention.
The peripheral set includes an 8-channel DMA controller with burst/block/demand transfer modes, dual 12-bit ADC units with FIFO-based scan conversion, and a dedicated CRC accelerator supporting CCITT CRC16 and IEEE-802.3 CRC32 for data integrity in communication and storage paths.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core | ARM Cortex-M3 r2p1, up to 40 MHz - enables deterministic real-time execution with Thumb-2 instruction set and low-latency interrupt handling. |
| Flash Memory | 256 KB dual-bank (240 KB upper + 16 KB lower), 0-wait-state read - allows background erase/write of one bank while executing from the other. |
| SRAM | 32 KB total (16 KB SRAM0 + 16 KB SRAM1), separate bus connections - supports parallel CPU instruction fetch and DMA data movement without bus arbitration delay. |
| USB Interface | Full-Speed device/host with built-in PLL, 6 endpoints (EP0–EP5), double-buffered EP1–EP5 - enables HID, CDC, and mass-storage class implementations with automatic token handshake in host mode. |
| ADC | 2 × 12-bit SAR, 24 channels, 2.0 μs conversion @ 2.7–3.6 V - provides high-speed analog sensing for motor current/voltage feedback and sensor fusion. |
| Low-Power Modes | Six modes: Sleep, Timer, RTC, Stop, Deep Standby RTC, Deep Standby Stop - supports sub-10 μA RTC-only operation and RAM retention configuration in deep standby. |
| Package | 100-pin LQFP (14 mm × 14 mm, 0.5 mm pitch) - delivers 83 GPIOs with 5 V-tolerant capability on selected pins and full peripheral pinout flexibility via port relocation. |
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 decoupling requirements per datasheet Section 13.3.2 - ensures stable operation across 1.65–3.6 V supply range. |
| XTAL/EXTAL | Main clock oscillator input/output | Supports 4–48 MHz crystal or external clock source - feeds main PLL for system clock generation and USB timing synchronization. |
| OSC32K/RTC32K | 32.768 kHz RTC oscillator | Drives real-time clock and watch counter independently - enables wake-up from Deep Standby RTC mode with ±20 ppm accuracy. |
| PA0–PA15, PB0–PB15, etc. | General-purpose I/O with multiplexing | 83 total GPIOs; each pin supports peripheral function assignment via port relocate register - eliminates fixed-function pin constraints in PCB layout. |
| USBDP/USBDM | USB 2.0 Full-Speed differential pair | Integrated ESD protection and impedance-matched routing - connects directly to USB connector without external transceiver. |
| LCDD0–LCDD31, LCDCOM0–LCDCOM7 | LCD segment/com drive outputs | Direct drive for 40×8 segment LCD with internal bias resistor network - eliminates external LCD bias components and reduces BOM count. |
Key Features
| Feature | Design Value |
|---|---|
| Dual-operation Flash Memory | Enables over-the-air firmware updates without halting application execution - critical for industrial controllers requiring zero-downtime field upgrades. |
| Hardware Flow Control (UART ch.4) | Automatic RTS/CTS signaling prevents UART buffer overflow during high-throughput serial communication - essential for reliable debug console or sensor data streaming. |
| Port Relocate Function | Runtime reassignment of peripheral functions (e.g., UART, I²C, CSIO) to any GPIO group - maximizes PCB routing flexibility and simplifies board revision for pin conflict resolution. |
| Integrated CRC Accelerator | Offloads CCITT CRC16 and IEEE-802.3 CRC32 computation from CPU - reduces firmware overhead by >90% for protocol checksums and flash memory integrity verification. |
| Deep Standby RTC Mode | Maintains RTC timekeeping and optional RAM retention at <10 μA - extends battery life in portable HMIs and remote monitoring nodes. |
Applications
| Industrial Motor Drive | Smart Energy Meter |
|---|---|
Use Scenario: Closed-loop control of BLDC/PMSM motors using PWM timers, ADC current sampling, and thermal monitoring. IC Role / Device Role / Timing Role: Real-time execution engine with synchronized 16-bit PWM generation, 2.0 μs ADC conversion, and hardware watchdog supervision. Use Value: Enables precise commutation timing and fault response within 10 μs, meeting IEC 61800-5-2 functional safety requirements for drive systems. | Use Scenario: Multi-tariff energy measurement with LCD display, tamper detection, and secure firmware updates over RS-485. IC Role / Device Role / Timing Role: System-on-chip managing metrology ADC, LCD driver, UART communication, and dual-bank flash for safe firmware patching. Use Value: Eliminates external LCD bias circuitry and supports field-upgradable meter firmware without service interruption. |
| Building Automation Panel | Medical Patient Monitor |
Use Scenario: Touchless HMI for HVAC control with capacitive touch overlay, environmental sensor interface, and local data logging. IC Role / Device Role / Timing Role: Embedded controller running FreeRTOS with USB CDC for configuration, LCD display, and 24-channel ADC for ambient sensing. Use Value: Reduces bill-of-materials by integrating USB device, LCD controller, and multi-sensor ADC - accelerates CE-certified panel development. | Use Scenario: Portable vital sign monitor with ECG/SpO₂ front-end, OLED/LCD display, and battery-backed RTC for timestamped data capture. IC Role / Device Role / Timing Role: Low-power medical SoC providing 12-bit ADC acquisition, Deep Standby RTC time stamping, and USB HID interface for PC data export. Use Value: Achieves >72-hour battery life in continuous monitoring mode using Deep Standby Stop with RAM retention and sub-μA RTC operation. |
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 |
|---|---|---|---|
| STM32F103VET6 | Single-bank 512 KB Flash, no dual-operation; lacks integrated LCD controller and HDMI-CEC receiver. | Requires external LCD bias and discrete CEC transceiver; better suited for general-purpose control without display integration. | Select when prioritizing larger Flash capacity and broader ecosystem support over integrated display/remote control functionality. |
| RA4M1 (R7FA4M1AB3CFM) | ARM Cortex-M4F core, 256 KB Flash, 32 KB SRAM; includes capacitive touch IP but no USB host or LCD controller. | No native USB host or segment LCD drive - needs external PHY and display driver IC for similar HMI use cases. | Choose for floating-point math-intensive tasks (e.g., sensor fusion) where USB host and LCD integration are handled externally. |
Compared with STM32F103VET6 and RA4M1, CY9AFB42NBPMC-G-JNE2 uniquely combines dual-bank flash for robust firmware updates, integrated LCD controller eliminating external bias components, and USB device/host dual-mode - making it optimal for cost-sensitive, display-centric industrial HMIs requiring field upgradeability.
Availability
CY9AFB42NBPMC-G-JNE2 is available at Aetrix Electronics and suitable for industrial motor drives, smart energy meters, building automation panels, and portable medical monitors requiring stable component supply and long-term lifecycle support.
Supply support for CY9AFB42NBPMC-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 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-optimized, low-power embedded control applications requiring integrated peripherals like LCD drivers, USB, and advanced analog interfaces.
FAQ
What power supply voltage ranges does CY9AFB42NBPMC-G-JNE2 support?
The device operates from 1.65 V to 3.6 V for core and analog functions. When USB is active, VCC must be 3.0–3.6 V; when driving LCD, VCC must be 2.2–3.6 V. These ranges are defined in Section 13.2 of the datasheet and validated across temperature and process corners.
Does CY9AFB42NBPMC-G-JNE2 support USB host functionality without external components?
Yes - it integrates a USB 2.0 Full/Low-Speed host controller with built-in PHY, automatic IN/OUT token handshake, and 256-byte packet support. No external transceiver or level-shifter is required for standard USB 1.1-compliant peripherals.
How many GPIO pins support 5 V tolerance, and which ones?
Specific pins - PA0–PA7, PB0–PB7, PC0–PC7, and PD0–PD7 - are 5 V tolerant when configured as inputs. This is confirmed in Section 5 (I/O Circuit Type) and Pin Assignment tables of the datasheet; tolerance applies only in input mode with internal pull-ups disabled.
Can the dual-bank flash be used for bootloader + application separation?
Yes - the 240 KB upper bank is typically allocated for application code, while the 16 KB lower bank hosts the bootloader. The dual-operation capability allows the bootloader to update the application bank while running from the lower bank, ensuring fail-safe firmware updates.
CY9AFB42NBPMC-G-JNE2 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Infineon Technologies
- Package/Case:
- 100-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, EBI/EMI, I2C, UART/USART, USB
- Peripherals:
- DMA, LCD, LVD, POR, PWM, WDT
- Number of I/O:
- 83
- Program Memory Size:
- 160KB (160K 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 24x12b
- Oscillator Type:
- Internal
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
CY9AFB42NBPMC-G-JNE2 FAQ
1.How can I place an order for CY9AFB42NBPMC-G-JNE2 through Aetrix?
Please submit a Request for Quotation (RFQ) for CY9AFB42NBPMC-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 CY9AFB42NBPMC-G-JNE2 reliable?
The price and inventory of CY9AFB42NBPMC-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 CY9AFB42NBPMC-G-JNE2 is usually 5 days.
3.What payment methods are accepted for CY9AFB42NBPMC-G-JNE2?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for CY9AFB42NBPMC-G-JNE2 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for CY9AFB42NBPMC-G-JNE2?
CY9AFB42NBPMC-G-JNE2 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your CY9AFB42NBPMC-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 CY9AFB42NBPMC-G-JNE2?
For technical support, including CY9AFB42NBPMC-G-JNE2 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your CY9AFB42NBPMC-G-JNE2 requirements.
6.How does Aetrix verify that CY9AFB42NBPMC-G-JNE2 is sourced from the original manufacturer or authorized distributors?
All CY9AFB42NBPMC-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 CY9AFB42NBPMC-G-JNE2 meets industry standards.
7.What is the process for return or replacement of CY9AFB42NBPMC-G-JNE2?
All CY9AFB42NBPMC-G-JNE2 units undergo pre-shipment inspection (PSI). If there is an issue with CY9AFB42NBPMC-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 CY9AFB42NBPMC-G-JNE2 part is unused and in its original packaging.
Return procedure for CY9AFB42NBPMC-G-JNE2:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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