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Infineon Technologies CY9AFB42NBBGL-GK9E1
- Part No.:
- CY9AFB42NBBGL-GK9E1
- Manufacturer:
- Infineon Technologies
- Category:
- Microcontrollers
- Package:
- 112-LFBGA
- Datasheet:
-
CY9AFB42NBBGL-GK9E1.pdf
- Description:
- IC MCU 32BIT 160KB FLASH 112BGA
- Quantity:
- Payment:
- Shipping:
Inventory:1,004
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Product details
Overview
CY9AFB42NBBGL-GK9E1 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 control in industrial HMI and portable instrumentation.
For engineers reviewing the CY9AFB42NBBGL-GK9E1 datasheet, CY9AFB42NBBGL-GK9E1 pinout, CY9AFB42NBBGL-GK9E1 application, or CY9AFB42NBBGL-GK9E1 equivalent, key selection criteria include dual-operation flash architecture, USB host/device coexistence, 24-channel 12-bit ADC with FIFO, hardware flow control on UART ch.4, and 83 GPIOs in 100-pin LQFP package with port relocation.
Technical Context
This MCU implements an ARM Cortex-M3 r2p1 core with integrated NVIC (48 peripheral interrupts + 1 NMI), SysTick timer, and dual-bus SRAM architecture-SRAM0 on I-code/D-code buses, SRAM1 on system bus-enabling concurrent CPU and DMA access. It features a dedicated USB PLL for clock generation and supports simultaneous erase/write/read across independent flash banks.
The peripheral set includes an 8-channel DMA controller with 32-bit addressing, HDMI-CEC/remote receiver (2 channels), RTC with leap-year support, and dual watchdogs: hardware (CR oscillator-clocked, active in all low-power modes except Deep Standby Stop/RTC), and software. 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, up to 40 MHz - enables deterministic real-time execution with Thumb-2 instruction set and NVIC for low-latency interrupt handling. |
| Flash Memory | 256 KB total (240 KB upper bank + 16 KB lower bank), dual-operation - allows background firmware update without halting application code. |
| SRAM | 32 KB total (16 KB SRAM0 + 16 KB SRAM1), separate bus connections - permits concurrent CPU fetch/store and DMA transfers without contention. |
| USB Interface | Full-Speed device/host with built-in PLL - eliminates need for external crystal; supports up to 6 endpoints (EP0–EP5) with double buffering and 256-byte EP1 buffer. |
| ADC | Two 12-bit SAR units, 24 channels, 2.0 μs conversion @ 2.7–3.6 V - delivers high-speed sampling for sensor fusion or motor control feedback loops. |
| Low-Power Modes | Six modes including Deep Standby RTC/Stop - retains RTC and optionally RAM state while drawing sub-1 μA current, ideal for battery-backed applications. |
| Package | 100-pin LQFP (14×14 mm, 0.5 mm pitch) - provides 83 GPIOs with 5 V-tolerant capability on selected pins and full peripheral pin relocation support. |
Pinout & Package
Package: 100-pin LQFP (14 mm × 14 mm, 0.5 mm pitch), RoHS-compliant, moisture sensitivity level 3. Pin assignment follows CY9AB40NB Series standard layout with dedicated power/ground pairs, configurable peripheral mapping, and port relocation logic enabling flexible PCB routing.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VCC / VSS | Power supply / Ground | Dedicated pairs per quadrant minimize noise coupling; VCC range 1.65–3.6 V (3.0–3.6 V required for USB operation). |
| XTAL / EXTAL | Main clock input/output | Connects to 4–48 MHz external crystal; enables precise timing for USB, ADC, and communication peripherals. |
| OSC32K / OSC32KIN | Sub-clock input | Drives 32.768 kHz RTC and Watch Counter; supports low-power timekeeping during Deep Standby modes. |
| USB_DP / USB_DM | USB differential data lines | Full-Speed (12 Mbps) interface with internal pull-up; requires no external transceiver for device mode. |
| LCDC_SEGx / LCDC_COMy | LCD segment/com common drivers | Direct drive for up to 40×8 segment LCD; includes internal bias resistors and blinking control logic. |
| P00–P57 | General-purpose I/O ports | 83 total GPIOs with individual pull-up control, direct read capability, and port relocate function for dynamic peripheral pin assignment. |
Key Features
| Feature | Design Value |
|---|---|
| Dual-bank Flash Memory | Enables over-the-air firmware updates by erasing/writing one bank while executing from the other - critical for field-deployed industrial controllers. |
| USB Device + Host Coexistence | Single silicon supports both roles with shared PHY and dedicated PLL - reduces BOM cost and simplifies design of USB-enabled HMI panels with peripheral attachment capability. |
| Hardware Flow Control (UART ch.4) | Automatic CTS/RTS handshake prevents data loss during high-speed serial communication - essential for reliable debug or sensor telemetry links. |
| Port Relocation Function | Allows runtime remapping of peripheral functions (e.g., UART, I²C, CSIO) to alternate GPIO pins - increases PCB layout flexibility and mitigates routing congestion. |
| Deep Standby RTC Mode | Maintains RTC time and optionally preserves SRAM contents while consuming <1 μA - extends battery life in portable medical or metering devices. |
Applications
| Industrial HMI Panels | Portable Test Equipment |
|---|---|
Use Scenario: Touch-enabled operator interface for PLCs and motor drives with local display and USB configuration port. IC Role / Device Role / Timing Role: Main controller managing LCD rendering, button scanning, USB CDC communication, and real-time status logging via RTC timestamping. Use Value: Dual-bank flash enables safe firmware upgrades during operation; 40×8 LCD driver eliminates external segment drivers; USB host mode allows firmware loading from USB stick. | Use Scenario: Handheld multimeter or oscilloscope with analog front-end, battery power, and PC connectivity. IC Role / Device Role / Timing Role: Central acquisition engine performing ADC sampling, signal processing, LCD refresh, and USB bulk transfer of measurement data. Use Value: 24-channel 12-bit ADC with 2.0 μs conversion supports multi-sensor inputs; Deep Standby RTC maintains calibration timestamps during sleep; 32 KB SRAM buffers waveform data before transmission. |
| Smart Energy Meters | Building Automation Controllers |
Use Scenario: DIN-rail mounted electricity meter with pulse output, RS-485, and tamper detection. IC Role / Device Role / Timing Role: Metering SoC handling metrology calculations, LCD display, RTC-based billing intervals, and secure firmware updates via dual-bank flash. Use Value: Hardware watchdog (CR-clocked) ensures fail-safe reset during brownout; LVD1/LVD2 provide graded voltage monitoring for grid instability response. | Use Scenario: HVAC controller managing temperature sensors, relay outputs, and BACnet/IP gateway via Ethernet MAC (external PHY). IC Role / Device Role / Timing Role: Embedded application processor running real-time control loop, scheduling HVAC cycles via RTC alarm, and managing multiple UART/I²C sensor interfaces. Use Value: 8-channel DMA offloads sensor data movement from CPU; port relocation simplifies integration of legacy RS-485 transceivers; 83 GPIOs support discrete I/O expansion. |
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, 64 KB SRAM, no integrated LCD controller or USB host, 12-bit ADC (16 ch), 72 MHz max | Lacks native LCD driving and USB host capability; requires external components for HMI or peripheral attachment | Select when higher CPU performance and larger memory are prioritized over integrated display/USB host functionality |
| RA4M1 (R7FA4M1AB3CFM) | ARM Cortex-M4F, 256 KB flash, 32 KB SRAM, no LCD controller, USB FS device only, 12-bit ADC (24 ch), 48 MHz max | Includes FPU and TrustZone but omits USB host and LCD driver; targets secure IoT edge nodes over HMI-centric designs | Select when floating-point math or security extensions are required, and external display/USB host ICs are acceptable |
Compared with STM32F103VET6 and RA4M1, CY9AFB42NBBGL-GK9E1 uniquely integrates LCD controller, USB device+host, and dual-bank flash in a single 100-pin LQFP - reducing component count and board area for cost-sensitive HMI and portable instrumentation where display and field-upgradeability are mandatory.
Availability
CY9AFB42NBBGL-GK9E1 is available at Aetrix Electronics and suitable for industrial HMI panels, portable test equipment, smart energy meters, and building automation controllers requiring stable component supply, long-term lifecycle support, and qualified automotive-grade traceability.
Supply support for CY9AFB42NBBGL-GK9E1 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, industrial, and security solutions, with global R&D and manufacturing infrastructure.
CY9AFB42NBBGL-GK9E1 belongs to the FM3 family of 32-bit microcontrollers designed specifically for cost-optimized, low-power embedded control applications requiring rich peripheral integration-including USB, LCD, and advanced timing-with minimal external components.
FAQ
What is the maximum operating frequency and supported voltage range for CY9AFB42NBBGL-GK9E1?
The CY9AFB42NBBGL-GK9E1 operates at up to 40 MHz with a supply voltage range of 1.65 V to 3.6 V. When USB functionality is used, VCC must be maintained between 3.0 V and 3.6 V. The device supports five clock sources including external oscillators (4–48 MHz), built-in CR oscillators (4 MHz and 100 kHz), and a main PLL for frequency multiplication.
Does CY9AFB42NBBGL-GK9E1 support USB host mode, and what peripherals can it connect to?
Yes, it supports USB 2.0 Full-Speed and Low-Speed host mode with automatic device detection, IN/OUT token handshake, and up to 256-byte packet length. It can connect to standard USB peripherals such as flash drives, HID keyboards/mice, and CDC-class devices-enabling field firmware updates and human interface expansion without external USB host controllers.
How does the dual-bank flash architecture improve firmware reliability?
Dual-bank flash allows independent erase, write, and read operations on upper (240 KB) and lower (16 KB) banks. This enables background firmware updates: new code is written to one bank while the system executes from the other, eliminating downtime and preventing corruption during power loss-critical for unattended industrial deployments.
Can the LCD controller drive custom segment displays, and what bias options are available?
Yes, the integrated LCDC supports up to 40 SEG × 8 COM with selectable 4-COM or 8-COM modes. It includes built-in dividing resistors for LCD bias generation and dedicated VV0–VV4 pins for external bias adjustment. The blinking function allows automatic on/off toggling of segments without CPU intervention, reducing firmware overhead in static display applications.
CY9AFB42NBBGL-GK9E1 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Infineon Technologies
- Package/Case:
- 112-LFBGA
- 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:
CY9AFB42NBBGL-GK9E1 FAQ
1.How can I place an order for CY9AFB42NBBGL-GK9E1 through Aetrix?
Please submit a Request for Quotation (RFQ) for CY9AFB42NBBGL-GK9E1 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 CY9AFB42NBBGL-GK9E1 reliable?
The price and inventory of CY9AFB42NBBGL-GK9E1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for CY9AFB42NBBGL-GK9E1 is usually 5 days.
3.What payment methods are accepted for CY9AFB42NBBGL-GK9E1?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for CY9AFB42NBBGL-GK9E1 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for CY9AFB42NBBGL-GK9E1?
CY9AFB42NBBGL-GK9E1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your CY9AFB42NBBGL-GK9E1 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 CY9AFB42NBBGL-GK9E1?
For technical support, including CY9AFB42NBBGL-GK9E1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your CY9AFB42NBBGL-GK9E1 requirements.
6.How does Aetrix verify that CY9AFB42NBBGL-GK9E1 is sourced from the original manufacturer or authorized distributors?
All CY9AFB42NBBGL-GK9E1 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 CY9AFB42NBBGL-GK9E1 meets industry standards.
7.What is the process for return or replacement of CY9AFB42NBBGL-GK9E1?
All CY9AFB42NBBGL-GK9E1 units undergo pre-shipment inspection (PSI). If there is an issue with CY9AFB42NBBGL-GK9E1, 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 CY9AFB42NBBGL-GK9E1 part is unused and in its original packaging.
Return procedure for CY9AFB42NBBGL-GK9E1:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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