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Infineon Technologies CY9AF344NBBGL-GK9E1
- Part No.:
- CY9AF344NBBGL-GK9E1
- Manufacturer:
- Infineon Technologies
- Category:
- Microcontrollers
- Package:
- 112-LFBGA
- Datasheet:
-
CY9AF344NBBGL-GK9E1.pdf
- Description:
- IC MCU 32BIT 288KB FLASH 96FBGA
- Quantity:
- Payment:
- Shipping:
Inventory:2,680
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Product details
Overview
CY9AF344NBBGL-GK9E1 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, 24-channel 12-bit ADC, and support for six low-power modes including Deep Standby RTC/Stop. It operates from 1.65 V to 3.6 V and targets embedded control in industrial sensors and USB-connected peripherals.
For engineers reviewing the CY9AF344NBBGL-GK9E1 datasheet, CY9AF344NBBGL-GK9E1 pinout, CY9AF344NBBGL-GK9E1 application, or CY9AF344NBBGL-GK9E1 equivalent, key selection criteria include dual-bank Flash update capability, USB host/device coexistence, 83 GPIOs in 100-pin LQFP, RTC with leap-year support, and hardware CRC acceleration for data integrity verification.
Technical Context
The CY9AF344NBBGL-GK9E1 implements an ARM Cortex-M3 r2p1 core running at up to 40 MHz with integrated NVIC (48 peripheral interrupts, 16 priority levels) and SysTick timer. Its memory subsystem includes dual-operation Flash (240 KB upper + 16 KB lower bank) enabling concurrent read/erase/write, plus two independent SRAM banks (16 KB each) connected to I/D-code and system buses.
Peripheral integration includes a full-featured USB 2.0 controller with built-in PLL, eight-channel DMA with 32-bit addressing, HDMI-CEC/remote receiver (2 channels), and a real-time clock with date/time alarm and leap-year correction. Clock supervision uses Clock Super Visor (CSV) with CR oscillator backup to detect external clock failure or frequency anomaly.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core | ARM Cortex-M3 r2p1, 40 MHz max - 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) - supports background firmware updates without halting application execution. |
| SRAM | 32 KB total (16 KB SRAM0 + 16 KB SRAM1) - separates instruction/data access paths to prevent bus contention during high-throughput operations. |
| USB Interface | Full-Speed device/host with built-in PLL - eliminates need for external crystal while supporting simultaneous device enumeration and host polling. |
| ADC | 24-channel 12-bit SAR, 2.0 μs conversion @ 2.7–3.6 V - delivers high-resolution analog sensing for motor control or environmental monitoring. |
| Low-Power Modes | Six modes including Deep Standby RTC/Stop - retains RTC and optionally RAM state at sub-μA current, enabling battery-powered operation for years. |
| Clock Sources | Five sources: 4–48 MHz main, 32.768 kHz sub, 4 MHz/100 kHz CR oscillators, Main PLL - provides flexible timing architecture for mixed-signal synchronization. |
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 / Ground | Dedicated power pins per functional block (I/O, analog, USB) minimize noise coupling and ensure stable operation across voltage range (1.65–3.6 V). |
| XTAL / EXTAL | Main clock input/output | Connects to external 4–48 MHz crystal or oscillator; required for USB PLL lock and precise timing-critical peripherals. |
| RTC_XTAL / RTC_EXTAL | Real-time clock oscillator | 32.768 kHz crystal connection for autonomous RTC operation during Deep Standby modes with retained timekeeping. |
| USB_DP / USB_DM | USB differential data lines | Full-Speed USB 2.0 physical layer interface with internal termination; supports both device and host roles without external transceiver. |
| P00–P57 | General-purpose I/O | Up to 83 configurable GPIOs with port relocate function, individual pull-up control, and 5V-tolerant capability on selected pins for mixed-voltage interfacing. |
Key Features
| Feature | Design Value |
|---|---|
| Dual-bank Flash memory | Enables seamless firmware updates via background erase/write in one bank while executing code from the other - critical for field-deployed devices requiring zero-downtime upgrades. |
| USB device/host dual mode | Single silicon instance supports both USB peripheral and host functionality with shared endpoints and automatic token handshake processing - reduces BOM and simplifies USB topology design. |
| Hardware CRC accelerator | Offloads CCITT CRC16 and IEEE-802.3 CRC32 computation from CPU, reducing integrity-check latency by >90% for communication stacks and flash data validation. |
| Deep Standby RTC mode | Maintains accurate calendar time and optional RAM retention at <1.5 μA - extends battery life in smart meters, asset trackers, and IoT edge nodes. |
| Port relocate function | Allows dynamic remapping of peripheral functions (UART, I²C, CSIO) to alternate GPIO pins - improves PCB layout flexibility and avoids signal congestion in dense routing environments. |
Applications
| Industrial Sensor Node | USB Human Interface Device |
|---|---|
Use Scenario: Battery-powered temperature/humidity sensor with local logging and USB data dump capability. IC Role / Device Role / Timing Role: Central controller managing ADC sampling, RTC timestamping, Flash storage, and USB mass-storage-class data export. Use Value: Dual-bank Flash allows firmware updates during USB data transfer; Deep Standby RTC maintains accurate timestamps between readings at <1.5 μA. | Use Scenario: Programmable industrial keypad with LED feedback and USB HID reporting to PLC or HMI. IC Role / Device Role / Timing Role: USB HID device controller with GPIO scanning, PWM-driven LED dimming, and debounced key detection. Use Value: Hardware flow control on UART channel 4 enables reliable debug output during HID report transmission; 83 GPIOs support matrix expansion and status indicators. |
| Smart Meter Communication Module | CEC-Controlled Home Appliance |
Use Scenario: Sub-metering module with RS-485 communication, pulse counting, and USB configuration port. IC Role / Device Role / Timing Role: Dual-interface controller handling isolated RS-485 via UART, optical pulse input via external interrupt, and USB configuration via CDC ACM class. Use Value: Six low-power modes enable rapid wake-from-sleep on pulse events; CRC accelerator ensures error-free firmware download over USB. | Use Scenario: HDMI-CEC enabled AV receiver with remote control learning and system-wide power coordination. IC Role / Device Role / Timing Role: HDMI-CEC transceiver and IR remote decoder with automatic ACK generation and repeat-code filtering. Use Value: Dedicated CEC hardware handles header arbitration and EOM/ACK generation without CPU intervention; 4-byte IR buffer supports multi-key remote sequences. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| STM32F303VCT6 | ARM Cortex-M4F core, 72 MHz, no USB host, 256 KB Flash, 48 KB SRAM, no HDMI-CEC | Lacks USB host and CEC; stronger DSP capability but no dual-bank Flash or Deep Standby RTC | Select when floating-point math or motor control algorithms dominate; avoid if USB host or CEC compliance is required. |
| RP2040 | Dual-core ARM Cortex-M0+, 133 MHz, 2 MB Flash (external), 264 KB SRAM, USB device only, no RTC or CEC | No integrated RTC, no CEC, no hardware CRC, relies on external Flash for program storage | Choose for cost-sensitive, high-clock-rate applications where external Flash is acceptable and USB host/CEC are unnecessary. |
Compared with STM32F303VCT6 and RP2040, CY9AF344NBBGL-GK9E1 uniquely combines USB device/host duality, HDMI-CEC hardware, dual-bank Flash, and sub-μA Deep Standby RTC - making it optimal for USB-configurable, CEC-integrated, and battery-backed embedded controllers.
Availability
CY9AF344NBBGL-GK9E1 is available at Aetrix Electronics and suitable for industrial sensor nodes, USB human interface devices, smart meter communication modules, and CEC-controlled home appliances requiring stable component supply and long-term lifecycle support.
Supply support for CY9AF344NBBGL-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 is a German semiconductor manufacturer specializing in power management, automotive ICs, and embedded controllers, with global R&D and manufacturing infrastructure.
This part belongs to the FM3 family of 32-bit ARM-based microcontrollers designed for cost-sensitive, low-power industrial and consumer embedded systems requiring rich peripheral integration and robust firmware update capability.
FAQ
What is the maximum operating frequency and supported voltage range?
CY9AF344NBBGL-GK9E1 operates at up to 40 MHz with a supply voltage range of 1.65 V to 3.6 V. When USB functionality is active, the minimum VCC is raised to 3.0 V to ensure stable USB PHY operation and PLL lock. All DC and AC characteristics in the datasheet are validated across this full operating range.
Does this MCU support in-system programming via USB?
Yes - the device includes a ROM-based bootloader accessible via USB CDC ACM class. Firmware updates can be performed using standard USB serial commands without external programmer hardware. The dual-bank Flash architecture allows verified new firmware to be written to one bank while the system continues running from the other.
How many USB endpoints are available and what transfer types do they support?
The USB controller supports up to six endpoints: Endpoint 0 (control), Endpoints 1–5 (bulk/interrupt/isochronous). Endpoint 1 has 256-byte buffers; Endpoints 0 and 2–5 have 64-byte buffers. Double buffering is implemented on all non-zero endpoints, enabling continuous data streaming without CPU intervention during transfers.
Is the RTC battery-backed and does it retain time in Deep Standby modes?
Yes - the RTC remains fully operational in Deep Standby RTC mode using the 32.768 kHz sub-clock, retaining year/month/day/hour/minute/second and weekday with automatic leap-year correction. Timekeeping continues with typical current draw below 1.5 μA, and RAM retention is configurable per application requirements.
CY9AF344NBBGL-GK9E1 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Infineon Technologies
- Package/Case:
- 112-LFBGA
- Series:
- FM3 MB9A340NB
- 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, LVD, POR, PWM, WDT
- Number of I/O:
- 83
- Program Memory Size:
- 288KB (288K x 8)
- Program Memory Type:
- FLASH
- EEPROM Size:
- -
- RAM Size:
- 32K 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:
CY9AF344NBBGL-GK9E1 FAQ
1.How can I place an order for CY9AF344NBBGL-GK9E1 through Aetrix?
Please submit a Request for Quotation (RFQ) for CY9AF344NBBGL-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 CY9AF344NBBGL-GK9E1 reliable?
The price and inventory of CY9AF344NBBGL-GK9E1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for CY9AF344NBBGL-GK9E1 is usually 5 days.
3.What payment methods are accepted for CY9AF344NBBGL-GK9E1?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for CY9AF344NBBGL-GK9E1 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for CY9AF344NBBGL-GK9E1?
CY9AF344NBBGL-GK9E1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your CY9AF344NBBGL-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 CY9AF344NBBGL-GK9E1?
For technical support, including CY9AF344NBBGL-GK9E1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your CY9AF344NBBGL-GK9E1 requirements.
6.How does Aetrix verify that CY9AF344NBBGL-GK9E1 is sourced from the original manufacturer or authorized distributors?
All CY9AF344NBBGL-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 CY9AF344NBBGL-GK9E1 meets industry standards.
7.What is the process for return or replacement of CY9AF344NBBGL-GK9E1?
All CY9AF344NBBGL-GK9E1 units undergo pre-shipment inspection (PSI). If there is an issue with CY9AF344NBBGL-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 CY9AF344NBBGL-GK9E1 part is unused and in its original packaging.
Return procedure for CY9AF344NBBGL-GK9E1:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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