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Infineon Technologies CY9AFB42NBPQC-G-JNE2
- Part No.:
- CY9AFB42NBPQC-G-JNE2
- Manufacturer:
- Infineon Technologies
- Category:
- Microcontrollers
- Package:
- 100-BQFP
- Datasheet:
-
CY9AFB42NBPQC-G-JNE2.pdf
- Description:
- IC MCU 32BIT 160KB FLASH 100PQFP
- Quantity:
- Payment:
- Shipping:
Inventory:2,522
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Product details
Overview
CY9AFB42NBPQC-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 (40×8 SEG/COM). It operates up to 40 MHz, supports six low-power modes, and targets embedded control in industrial HMI, metering, and appliance UI subsystems.
For engineers reviewing the CY9AFB42NBPQC-G-JNE2 datasheet, CY9AFB42NBPQC-G-JNE2 pinout, CY9AFB42NBPQC-G-JNE2 application, or CY9AFB42NBPQC-G-JNE2 equivalent, key selection considerations include dual-bank Flash for seamless firmware updates, integrated USB host/device capability, 5 V-tolerant GPIOs on selected pins, RTC with leap-year support, and hardware CRC acceleration for data integrity in resource-constrained systems.
Technical Context
This MCU implements the ARM Cortex-M3 r2p1 core with NVIC supporting 48 peripheral interrupts and 16 priority levels. It integrates dual-bank Flash enabling concurrent read-while-write operations-critical for over-the-air (OTA) firmware updates without halting execution.
The peripheral set includes a full-featured USB 2.0 transceiver with built-in PLL, an LCD controller supporting 40 SEG × 8 COM with internal bias resistors, and two independent 12-bit ADC units with 2.0 μs conversion time at 2.7–3.6 V. Clock supervision uses both external oscillators and internal CR oscillators with CSV monitoring for fail-safe timing.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| CPU Core | ARM Cortex-M3 r2p1, up to 40 MHz - enables deterministic real-time control 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 - supports background write/erase for live firmware patching and bootloader resilience. |
| SRAM | 32 KB total (16 KB SRAM0 on I/D bus + 16 KB SRAM1 on system bus) - separates instruction/data access paths to reduce bus contention. |
| USB Interface | Full-Speed device/host with 6 endpoints (EP0–EP5), EP1 double-buffered at 256 B - enables HID, CDC, and mass storage class implementations without external PHY. |
| ADC | Two 12-bit SAR units, 24-channel input, 2.0 μs conversion @ 2.7–3.6 V - meets sub-10 μs sampling requirements for motor current sensing and power quality monitoring. |
| Power Supply | 1.65–3.6 V operation; 3.0–3.6 V required for USB; 2.2–3.6 V for LCDC - allows single-supply design across mixed-signal subsystems with voltage scaling. |
| Low-Power Modes | Six modes including Deep Standby RTC/Stop with RAM retention options - extends battery life in always-on sensor nodes and smart meters. |
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 | Dedicated analog/digital power domains; decoupling required per datasheet layout guidelines to ensure ADC and USB signal integrity. |
| XTAL1/XTAL2 | Main clock oscillator inputs | Supports 4–48 MHz crystal; used for CPU, USB PLL, and peripheral timing - critical for USB frame accuracy and real-time scheduling. |
| OSC32IN/OSC32OUT | Sub-clock oscillator inputs | 32.768 kHz crystal connection for RTC and low-power wake-up timers - enables calendar timekeeping during Deep Standby modes. |
| USB_DP/USB_DM | USB 2.0 differential data lines | Integrated transceiver with internal termination; requires 27 Ω series resistors and controlled impedance routing for Full-Speed compliance. |
| SEG0–SEG39, COM0–COM7 | Segment and common outputs | Direct drive for static or multiplexed LCD panels up to 40×8; internal resistor ladder eliminates external bias network. |
Key Features
| Feature | Design Value |
|---|---|
| Dual-bank Flash memory | Enables atomic firmware updates: one bank executes while the other is erased/written - eliminates boot failure risk during field upgrades. |
| USB device/host dual mode | Single silicon supports both peripheral (e.g., HID keyboard) and host (e.g., USB flash reader) roles - reduces BOM count in portable HMI designs. |
| Hardware CRC accelerator | Offloads CCITT CRC16 and IEEE-802.3 CRC32 computation - cuts CPU cycles by >90% vs. software implementation for secure firmware image verification. |
| Port relocate function | Allows remapping of UART, I²C, CSIO, and timer outputs to alternate GPIO pins - simplifies PCB layout and avoids signal congestion in dense 100-pin layouts. |
| RTC with leap-year logic | Maintains accurate calendar time across century boundaries without host software intervention - essential for energy metering and logging applications. |
Applications
| Industrial HMI Panel | Smart Energy Meter |
|---|---|
Use Scenario: Local operator interface on PLC-mounted display with touch overlay and real-time status feedback. IC Role / Device Role / Timing Role: Primary application MCU managing LCD refresh, button scan, USB configuration port, and RS-485 communication via UART. Use Value: Dual-bank Flash enables safe field updates of UI firmware; 40×8 LCD driver eliminates external segment drivers; 5 V-tolerant GPIOs interface directly with legacy industrial sensors. | Use Scenario: Residential electricity meter with tariff switching, tamper detection, and local data export via USB stick. IC Role / Device Role / Timing Role: System controller handling metrology data aggregation, RTC-based billing intervals, LCD display, and USB mass storage class for data retrieval. Use Value: Hardware CRC ensures integrity of stored kWh logs; Deep Standby RTC mode maintains time and metering counters at <1 μA; LVD2 reset prevents corrupted EEPROM writes during brownout. |
| Home Appliance Control Board | Remote-Controlled HVAC Display |
Use Scenario: Washing machine main board coordinating motor control, water valve sequencing, and LED/LCD user feedback. IC Role / Device Role / Timing Role: Central MCU executing state machine logic, reading temperature/pressure sensors via ADC, driving relay outputs, and updating segmented display. Use Value: Six low-power modes allow rapid entry/exit from sleep during idle cycles; 24-channel ADC samples multiple analog sensors simultaneously; watchdog timers enforce safety-critical timeout recovery. | Use Scenario: Wall-mounted thermostat with IR remote receiver, ambient temperature/humidity sensing, and backlit LCD. IC Role / Device Role / Timing Role: Dedicated UI processor handling HDMI-CEC command parsing, IR decode, sensor polling, and LCD contrast/brightness control. Use Value: Integrated HDMI-CEC/IR receiver reduces external components; 32.768 kHz RTC maintains schedule across power loss; LCDC bias generation eliminates external resistor network. |
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 | 72 MHz Cortex-M3, 256 KB Flash, no integrated USB PHY, no LCD controller, no HDMI-CEC | Requires external USB transceiver and segment driver; better suited for general-purpose control without display or CEC | Select when higher CPU speed and broader ecosystem support outweigh integrated display/CEC needs |
| RA4M1 (R7FA4M1AB3CFM) | 48 MHz Cortex-M4F, 256 KB Flash, USB FS device only, no host mode, no LCD controller | Lacks USB host and LCD driver; adds FPU and TrustZone but increases cost and power | Prefer for floating-point math or security-sensitive firmware; avoid if USB host or direct LCD drive is mandatory |
Compared with STM32F103VCT6 and RA4M1, CY9AFB42NBPQC-G-JNE2 uniquely combines USB device/host, LCD controller, HDMI-CEC, and dual-bank Flash in a single 100-pin LQFP package - making it optimal for cost-sensitive, display-rich embedded controllers where firmware update safety and peripheral integration are prioritized over raw CPU performance or security extensions.
Availability
CY9AFB42NBPQC-G-JNE2 is available at Aetrix Electronics and suitable for industrial HMI panels, smart energy meters, home appliance control boards, and remote-controlled HVAC displays requiring stable component supply and long-term lifecycle support.
Supply support for CY9AFB42NBPQC-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 human-machine interface peripherals - including LCD, USB, and remote control interfaces.
FAQ
What is the maximum operating frequency and supported voltage range for CY9AFB42NBPQC-G-JNE2?
The CY9AFB42NBPQC-G-JNE2 operates at up to 40 MHz and supports a wide supply range of 1.65 V to 3.6 V. USB functionality requires VCC between 3.0 V and 3.6 V, while LCD operation is guaranteed from 2.2 V to 3.6 V. These ranges enable flexible power architecture design across battery-powered and line-powered applications without level-shifting.
Does this MCU support USB host mode, and what peripherals can it enumerate?
Yes, CY9AFB42NBPQC-G-JNE2 supports USB 2.0 Full-Speed and Low-Speed host mode with automatic device connect/disconnect detection. It can enumerate standard class devices including HID keyboards/mice, CDC modems, and mass storage devices (e.g., USB flash drives), using its built-in 256-byte packet buffer and hardware handshake processing.
How does the dual-bank Flash architecture improve firmware reliability?
Dual-bank Flash allows simultaneous execution from one bank while erasing or programming the other. This enables atomic firmware updates: new code is written to the inactive bank, validated, then the boot vector is switched - eliminating risk of bricking during power loss or interruption, a critical requirement for unattended field-deployed equipment.
Is the RTC capable of maintaining accurate time across power cycles and calendar boundaries?
Yes, the integrated RTC counts year/month/day/hour/minute/second/day-of-week with automatic leap-year correction through year 2099. When powered by the 32.768 kHz sub-clock in Deep Standby RTC mode, it maintains time with typical ±2 ppm accuracy and retains calendar state across full power loss - verified in datasheet Section 13.5.2.
CY9AFB42NBPQC-G-JNE2 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Infineon Technologies
- Package/Case:
- 100-BQFP
- 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:
CY9AFB42NBPQC-G-JNE2 FAQ
1.How can I place an order for CY9AFB42NBPQC-G-JNE2 through Aetrix?
Please submit a Request for Quotation (RFQ) for CY9AFB42NBPQC-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 CY9AFB42NBPQC-G-JNE2 reliable?
The price and inventory of CY9AFB42NBPQC-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 CY9AFB42NBPQC-G-JNE2 is usually 5 days.
3.What payment methods are accepted for CY9AFB42NBPQC-G-JNE2?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for CY9AFB42NBPQC-G-JNE2 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for CY9AFB42NBPQC-G-JNE2?
CY9AFB42NBPQC-G-JNE2 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your CY9AFB42NBPQC-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 CY9AFB42NBPQC-G-JNE2?
For technical support, including CY9AFB42NBPQC-G-JNE2 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your CY9AFB42NBPQC-G-JNE2 requirements.
6.How does Aetrix verify that CY9AFB42NBPQC-G-JNE2 is sourced from the original manufacturer or authorized distributors?
All CY9AFB42NBPQC-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 CY9AFB42NBPQC-G-JNE2 meets industry standards.
7.What is the process for return or replacement of CY9AFB42NBPQC-G-JNE2?
All CY9AFB42NBPQC-G-JNE2 units undergo pre-shipment inspection (PSI). If there is an issue with CY9AFB42NBPQC-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 CY9AFB42NBPQC-G-JNE2 part is unused and in its original packaging.
Return procedure for CY9AFB42NBPQC-G-JNE2:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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