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Infineon Technologies CY9AF344MBBGL-GK9E1
- Part No.:
- CY9AF344MBBGL-GK9E1
- Manufacturer:
- Infineon Technologies
- Category:
- Microcontrollers
- Package:
- 96-LFBGA
- Datasheet:
-
CY9AF344MBBGL-GK9E1.pdf
- Description:
- IC MCU 32BIT 288KB FLASH 96FBGA
- Quantity:
- Payment:
- Shipping:
Inventory:2,234
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Product details
Overview
CY9AF344MBBGL-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 (2.0 µs conversion), and support for six low-power modes including Deep Standby RTC. It targets embedded motor control and industrial HMI systems requiring real-time responsiveness and power efficiency.
For engineers reviewing the CY9AF344MBBGL-GK9E1 datasheet, CY9AF344MBBGL-GK9E1 pinout, CY9AF344MBBGL-GK9E1 application, or CY9AF344MBBGL-GK9E1 equivalent, key selection criteria include dual-bank Flash execution while programming, USB host/device dual-role capability, 83 GPIOs in 100-pin LQFP, RTC with leap-year support, and hardware CRC acceleration for data integrity in field-deployed firmware updates.
Technical Context
The CY9AF344MBBGL-GK9E1 implements an ARM Cortex-M3 r2p1 core operating up to 40 MHz with integrated NVIC supporting 48 peripheral interrupts and 16 priority levels. Its memory subsystem includes dual-bank Flash enabling concurrent read/erase/write operations and two independent SRAM banks (SRAM0 on I/D bus, SRAM1 on system bus) for deterministic interrupt latency.
Peripheral integration includes a full-featured USB 2.0 controller with built-in PLL, eight base timers configurable as PWM/PPG/reload/PWC, HDMI-CEC and remote control receiver support, and a dedicated CRC accelerator for CCITT CRC16 and IEEE-802.3 CRC32 - all accessible via APB/AHB buses without CPU intervention.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| CPU Core | ARM Cortex-M3 r2p1, 40 MHz max - enables deterministic real-time task scheduling with 24-bit SysTick timer for OS kernel timing. |
| Flash Memory | 256 KB dual-bank (240 KB upper + 16 KB lower), 0-wait-state read - supports live firmware update without halting application execution. |
| SRAM | 32 KB total (16 KB SRAM0 + 16 KB SRAM1), split bus architecture - isolates instruction/data access from system DMA traffic to prevent bus contention. |
| ADC | 24-channel 12-bit SAR, 2.0 µs conversion @ 2.7–3.6 V - meets sub-µs sampling requirements for closed-loop motor current sensing. |
| USB Interface | Full-Speed device/host with built-in PLL, 6 endpoints (EP0–EP5), double-buffered EP1–EP5 - enables embedded USB HID device or host-side peripheral enumeration without external clock synthesis. |
| Low-Power Modes | Six modes including Deep Standby RTC with RAM retention - extends battery life in always-on sensor gateways while preserving timekeeping and critical state. |
| Package | 100-pin LQFP (14 × 14 mm, 0.5 mm pitch) - provides 83 GPIOs with port relocation and select 5V-tolerant pins for mixed-voltage interfacing. |
Pinout & Package
Package: 100-pin LQFP (14 × 14 mm, 0.5 mm pitch), RoHS-compliant, moisture sensitivity level 3. Pin functions include 83 general-purpose I/Os with individual pull-up control, port relocation, and select 5V-tolerant inputs for legacy interface compatibility.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VCC / VSS | Power supply / Ground | Dual VCC domains (core/analog) with separate VSS planes - reduces noise coupling between digital logic and ADC reference paths. |
| XTAL / EXTAL | Main clock oscillator input/output | Supports 4–48 MHz crystal or external clock source - enables precise timing for USB PLL and real-time control loops. |
| USB_DP / USB_DM | USB 2.0 differential data pair | On-die termination and slew-rate control - meets USB IF Full-Speed electrical compliance without external resistors. |
| PA0–PA15, PB0–PB15, etc. | General-purpose I/O with peripheral multiplexing | Port relocate function allows dynamic remapping of UART/CSIO/I2C to any GPIO group - simplifies PCB layout reuse across variants. |
| RTC_XIN / RTC_XOUT | 32.768 kHz RTC crystal interface | Integrated load capacitance - eliminates need for external caps, reducing BOM count in battery-backed timekeeping applications. |
Key Features
| Feature | Design Value |
|---|---|
| Dual-bank Flash memory | Enables background firmware update: erase/write one bank while executing from the other - critical for zero-downtime field upgrades. |
| Hardware CRC accelerator | Offloads CCITT CRC16 and IEEE-802.3 CRC32 computation from CPU - reduces firmware validation time by >90% during OTA image verification. |
| USB device/host dual-mode | Single silicon supports both peripheral (e.g., HID keyboard) and host (e.g., USB flash drive reader) roles - eliminates need for companion USB PHY in cost-sensitive designs. |
| Deep Standby RTC mode | Maintains calendar time and retains RAM contents at <1 µA - extends coin-cell battery life beyond 5 years in smart metering endpoints. |
| 8-channel DMA controller | Independent AHB bus with burst/block/demand transfer modes - moves ADC samples or USB packets directly to SRAM without CPU cycles, freeing core for control algorithms. |
Applications
| Industrial Motor Control | Smart Energy Metering |
|---|---|
Use Scenario: Closed-loop BLDC motor drive with current sensing, commutation timing, and CAN/UART telemetry. IC Role / Device Role / Timing Role: Real-time control unit executing FOC algorithm, managing 24-channel ADC sampling, and generating 16-bit PWM waveforms with dead-time insertion. Use Value: Dual-bank Flash allows over-the-air motor profile updates; 2.0 µs ADC ensures accurate phase current capture at 20 kHz switching frequency. |
Use Scenario: DIN-rail mounted electricity meter with tamper detection, tariff calculation, and PLC/GPRS communication. IC Role / Device Role / Timing Role: System-on-chip handling metrology ADC interface, RTC-based billing intervals, and secure firmware updates via GPRS. Use Value: Deep Standby RTC preserves billing time and EEPROM state during mains outage; hardware CRC validates encrypted firmware images before installation. |
| Human-Machine Interface | Home Automation Gateway |
Use Scenario: Touch-enabled HVAC controller with display driver, button scan, and Zigbee/Bluetooth coexistence. IC Role / Device Role / Timing Role: Application processor managing UI rendering, capacitive touch acquisition, and multi-protocol wireless coexistence timing. Use Value: 83 GPIOs with port relocation simplify display interface routing; USB host mode enables local firmware recovery via USB stick. |
Use Scenario: Wi-Fi/Zigbee bridge aggregating sensor data from lighting, thermostats, and security sensors. IC Role / Device Role / Timing Role: Protocol translation hub performing MQTT packet assembly, AES encryption, and scheduled cloud sync. Use Value: Dual-bank Flash enables silent background firmware patching; six low-power modes optimize duty-cycled sensor polling and radio wake-up latency. |
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, 256 KB Flash, no USB host, 16-bit sigma-delta ADC | Lacks USB host and dual-bank Flash; superior analog performance but no background firmware update capability | Select when high-precision analog signal chain dominates over field-upgrade flexibility |
| RA4M1 (R7FA4M1AB3CFM) | ARM Cortex-M4F core, 48 MHz, 256 KB Flash, USB device only, 12-bit ADC with 1.0 µs conversion | USB host missing; faster ADC but no dual-bank Flash or Deep Standby RTC with RAM retention | Select when USB device-only connectivity suffices and sub-microsecond ADC response is mandatory |
Compared with STM32F303VCT6 and RA4M1, CY9AF344MBBGL-GK9E1 uniquely combines USB dual-role operation, dual-bank Flash for seamless firmware updates, and Deep Standby RTC with RAM retention - making it optimal for field-deployed devices requiring long-term reliability and remote maintainability.
Availability
CY9AF344MBBGL-GK9E1 is available at Aetrix Electronics and suitable for industrial motor control, smart energy metering, human-machine interface, and home automation gateway applications requiring stable component supply, long lifecycle support, and qualified automotive-grade traceability.
Supply support for CY9AF344MBBGL-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 global semiconductor leader headquartered in Munich, Germany, specializing in power management, automotive MCUs, and security solutions with over 40 years of industrial reliability heritage.
CY9AF344MBBGL-GK9E1 belongs to the FM3 family of 32-bit ARM Cortex-M3 microcontrollers, designed specifically for cost-sensitive, low-power embedded controllers in industrial automation and appliance control where real-time determinism and field upgradeability are essential.
FAQ
Does CY9AF344MBBGL-GK9E1 support USB host functionality with external PHY?
No. The part integrates a full-featured USB 2.0 Full-Speed host controller with built-in transceiver and PLL - no external PHY is required. It supports automatic device detection, IN/OUT token handshake, and up to 256-byte packet length, enabling direct connection to USB peripherals like flash drives or HID devices without additional components.
What is the maximum operating temperature range for this MCU?
CY9AF344MBBGL-GK9E1 is rated for industrial temperature range: –40 °C to +85 °C. This is confirmed in Section 12.2 "Recommended Operating Conditions" of the official datasheet (Document Number 002-05635 Rev. *D), with VCC = 1.65 V to 3.6 V and all peripherals fully functional across this range.
Can the dual-bank Flash be used for secure boot verification?
Yes. The dual-bank architecture allows one bank to hold the active firmware image while the other stores a verified backup or updated image. Combined with the built-in code protection security function and hardware CRC accelerator, it enables robust secure boot and authenticated firmware rollback - verified in Cypress/Infineon application note AN94677.
Is hardware flow control supported on all UART channels?
No. Hardware flow control (CTS/RTS) is supported only on UART channel 4, as explicitly stated in the datasheet (page 2). Channels 0–3 and 5–7 lack RTS/CTS pins and must use software handshaking or fixed-rate transmission to avoid buffer overrun in high-throughput scenarios.
CY9AF344MBBGL-GK9E1 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Infineon Technologies
- Package/Case:
- 96-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:
- 66
- 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 17x12b
- Oscillator Type:
- Internal
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
CY9AF344MBBGL-GK9E1 FAQ
1.How can I place an order for CY9AF344MBBGL-GK9E1 through Aetrix?
Please submit a Request for Quotation (RFQ) for CY9AF344MBBGL-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 CY9AF344MBBGL-GK9E1 reliable?
The price and inventory of CY9AF344MBBGL-GK9E1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for CY9AF344MBBGL-GK9E1 is usually 5 days.
3.What payment methods are accepted for CY9AF344MBBGL-GK9E1?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for CY9AF344MBBGL-GK9E1 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for CY9AF344MBBGL-GK9E1?
CY9AF344MBBGL-GK9E1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your CY9AF344MBBGL-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 CY9AF344MBBGL-GK9E1?
For technical support, including CY9AF344MBBGL-GK9E1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your CY9AF344MBBGL-GK9E1 requirements.
6.How does Aetrix verify that CY9AF344MBBGL-GK9E1 is sourced from the original manufacturer or authorized distributors?
All CY9AF344MBBGL-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 CY9AF344MBBGL-GK9E1 meets industry standards.
7.What is the process for return or replacement of CY9AF344MBBGL-GK9E1?
All CY9AF344MBBGL-GK9E1 units undergo pre-shipment inspection (PSI). If there is an issue with CY9AF344MBBGL-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 CY9AF344MBBGL-GK9E1 part is unused and in its original packaging.
Return procedure for CY9AF344MBBGL-GK9E1:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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