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Infineon Technologies CY9AF344MAPMC-G-MNE2
- Part No.:
- CY9AF344MAPMC-G-MNE2
- Manufacturer:
- Infineon Technologies
- Category:
- Microcontrollers
- Package:
- 80-LQFP
- Datasheet:
-
CY9AF344MAPMC-G-MNE2.pdf
- Description:
- IC MCU 32BIT 288KB FLASH 80LQFP
- Quantity:
- Payment:
- Shipping:
Inventory:1,269
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Product details
Overview
CY9AF344MAPMC-G-MNE2 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 applications requiring real-time responsiveness and code security.
For engineers reviewing the CY9AF344MAPMC-G-MNE2 datasheet, CY9AF344MAPMC-G-MNE2 pinout, CY9AF344MAPMC-G-MNE2 application, or CY9AF344MAPMC-G-MNE2 equivalent, key selection criteria include dual-bank Flash update capability, USB host/device coexistence, 100-pin LQFP package with 83 GPIOs (some 5V-tolerant), RTC with leap-year support, and hardware CRC acceleration for data integrity in field-deployed firmware.
Technical Context
This MCU implements an ARM Cortex-M3 r2p1 core operating up to 40 MHz with integrated NVIC (48 peripheral interrupts, 16 priority levels) and SysTick timer. Its memory subsystem includes dual-bank Flash enabling concurrent read/erase/write operations and two independent SRAM blocks (SRAM0 on I/D-code bus, SRAM1 on system bus).
The peripheral set integrates USB 2.0 Full-Speed with built-in PLL, eight-channel DMA with burst/block/demand transfer modes, HDMI-CEC/remote receiver (2 channels), and a Clock Supervisor (CSV) that monitors external clock failure or frequency anomaly using internal CR oscillators.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| CPU Core | ARM Cortex-M3 r2p1, 40 MHz max - enables deterministic real-time task scheduling with hardware divide and Thumb-2 instruction set. |
| Flash Memory | 256 KB dual-bank (240 KB upper + 16 KB lower), 0-wait-state - supports seamless firmware updates without halting execution. |
| SRAM | 32 KB total (16 KB SRAM0 + 16 KB SRAM1), split bus architecture - isolates instruction/data access from system peripherals to reduce bus contention. |
| ADC | 24-channel 12-bit SAR, 2.0 μs conversion @ 2.7–3.6 V - meets sub-10 μs sampling requirements for closed-loop motor current sensing. |
| USB Interface | Full-Speed device & host, 6 endpoints (EP0–EP5), EP1 double-buffered at 256 bytes - enables local firmware update via USB device mode and peripheral enumeration via host mode. |
| Low-Power Modes | Six modes including Deep Standby RTC with RAM retention - extends battery life in remote sensor nodes while preserving timekeeping and critical state. |
| Clock Sources | Five sources: 4–48 MHz main oscillator, 32.768 kHz sub-clock, 4 MHz/100 kHz CR oscillators, Main PLL - provides fail-safe timing redundancy and precise USB clock derivation. |
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 | Dual VCC pins (pins 1, 100) and multiple VSS (pins 2, 3, 98, 99) ensure stable core/peripheral rail decoupling and EMI reduction. |
| P00–P07, P10–P17, etc. | General-purpose I/O | Up to 83 GPIOs with port relocate function - allows flexible PCB routing by remapping UART/CSIO/I²C to non-default pins without hardware change. |
| USB_DP / USB_DM | USB differential pair | Direct connection to USB transceiver; requires 27 Ω series resistors and 1.5 kΩ pull-up on DP for device mode - no external PHY needed. |
| XTAL1 / XTAL2 | Main crystal oscillator input/output | Supports 4–48 MHz parallel-resonant crystals; internal load capacitors eliminate need for external caps in most designs. |
| RTC_XIN / RTC_XOUT | Real-time clock crystal | 32.768 kHz watch crystal interface with internal oscillator circuit - enables calendar timekeeping during Deep Standby RTC mode. |
Key Features
| Feature | Design Value |
|---|---|
| Dual-bank Flash memory | Enables over-the-air firmware updates with zero downtime: one bank executes while the other receives new image. |
| Hardware CRC accelerator | Offloads CCITT CRC16 and IEEE-802.3 CRC32 computation from CPU - reduces flash verification time by >90% in bootloader integrity checks. |
| USB device + host coexistence | Single silicon supports both roles simultaneously - eliminates need for separate USB controller IC in dual-role gateways or docking stations. |
| Port relocate function | Runtime-configurable peripheral pin mapping - simplifies layout reuse across variants (e.g., CY9AF344 vs CY9AF342) without PCB revision. |
| Deep Standby RTC mode | Maintains calendar time and retains selected RAM contents at ~1.2 μA - ideal for battery-backed industrial loggers with multi-year deployment. |
Applications
| Industrial Motor Control | Smart Home Gateway |
|---|---|
Use Scenario: Closed-loop BLDC motor drive with current sensing, thermal monitoring, and CAN/USB diagnostics. IC Role / Device Role / Timing Role: Primary controller executing FOC algorithm, managing PWM timers, ADC sampling, and USB-based firmware updates. Use Value: Dual-bank Flash enables safe field updates; 24-channel ADC samples phase currents and temperature sensors simultaneously at ≤2.0 μs per channel. | Use Scenario: Central hub aggregating Zigbee, BLE, and IR remote commands while exposing USB-CDC virtual COM port to cloud gateway. IC Role / Device Role / Timing Role: USB host manages peripheral enumeration; HDMI-CEC receiver interprets TV power commands; multi-function serial interfaces bridge protocols. Use Value: Integrated USB host/device eliminates external transceiver; HDMI-CEC hardware block handles arbitration and ACK generation without CPU overhead. |
| Portable Medical Sensor | Energy Metering Terminal |
Use Scenario: Battery-powered pulse oximeter logging SpO₂, heart rate, and ambient light via I²C sensors, with USB charging and data export. IC Role / Device Role / Timing Role: Low-power supervisor managing Sleep/Timer/Deep Standby RTC modes; ADC captures analog front-end signals; USB handles bulk data transfer. Use Value: Deep Standby RTC preserves time and RAM state at <1.5 μA; 12-bit ADC achieves 4096:1 dynamic range for photodiode signal digitization. | Use Scenario: DIN-rail mounted electricity meter with real-time tariff calculation, tamper detection, and optical/USB communication ports. IC Role / Device Role / Timing Role: RTC maintains accurate billing time; LVD1/LVD2 monitor supply voltage dips and brownouts; CRC accelerator validates firmware and metering logs. Use Value: Leap-year-aware RTC ensures correct billing cycle alignment over decades; dual-stage LVD triggers interrupt (LVD1) then reset (LVD2) to prevent corrupted EEPROM writes. |
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 | 72 MHz Cortex-M3, 512 KB Flash, no USB host, no HDMI-CEC, 12-bit ADC @ 1 μs | Lacks USB host and CEC; better suited for cost-sensitive motor control without protocol bridging | Select when USB device-only and higher CPU speed are prioritized over protocol flexibility. |
| RP2040 | Dual-core ARM Cortex-M0+, 2 MB Flash, USB 1.1 device/host, no RTC, no hardware CRC | No RTC or LVD; relies on software RTC; lacks industrial-grade voltage monitoring and tamper resilience | Choose for consumer IoT where dual-core concurrency matters more than calendar timekeeping or safety-critical reset behavior. |
Compared with STM32F103VET6 and RP2040, CY9AF344MAPMC-G-MNE2 uniquely combines USB host/device, HDMI-CEC, Deep Standby RTC, and dual-bank Flash in a single chip-making it optimal for field-upgradable, protocol-aggregating industrial edge devices requiring long-term time accuracy and secure firmware updates.
Availability
CY9AF344MAPMC-G-MNE2 is available at Aetrix Electronics and suitable for industrial motor control, smart home gateways, portable medical sensors, and energy metering terminals requiring stable component supply and long lifecycle support.
Supply support for CY9AF344MAPMC-G-MNE2 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 MCUs, and security solutions, with global R&D and manufacturing infrastructure.
This part belongs to the FM3 family of 32-bit ARM Cortex-M3 microcontrollers, designed specifically for cost-optimized, low-power industrial embedded systems requiring mixed-signal integration, protocol bridging, and robust field-upgrade capability.
FAQ
What is the maximum operating frequency and supported voltage range?
The CY9AF344MAPMC-G-MNE2 operates 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 transceiver operation and meet Full-Speed signaling requirements per USB 2.0 specification.
Does this MCU support simultaneous USB device and host operation?
Yes, the MCU integrates a single USB controller capable of operating in device mode (USB 2.0 Full-Speed, 6 endpoints) and host mode (USB 2.0 Full/Low-Speed, 256-byte packet support) concurrently. The hardware automatically switches roles based on VBUS detection and configuration registers-no external PHY or mode-switching logic is required.
How does the dual-bank Flash architecture improve firmware reliability?
Dual-bank Flash allows one bank (e.g., upper 240 KB) to run active firmware while the other (lower 16 KB work area) receives and verifies a new image. This enables atomic firmware updates with rollback capability-if verification fails, the system boots from the known-good bank without user intervention or external tools.
Is the RTC battery-backed, and what timekeeping features does it include?
The RTC is not battery-backed but retains time in Deep Standby RTC mode using the internal 32.768 kHz sub-clock oscillator and VCC-supplied backup power. It supports full calendar (year/month/day/hour/minute/second/weekday), leap-year correction, programmable alarms down to minute granularity, and wake-up from sleep modes-all without CPU involvement.
CY9AF344MAPMC-G-MNE2 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Infineon Technologies
- Package/Case:
- 80-LQFP
- Series:
- FM3 MB9A340NA
- Packaging:
- Tray
- Product Status:
- Active
- Programmable:
- Not Verified
- Core Processor:
- ARM® Cortex®-M3
- Core Size:
- 32-Bit
- 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 SAR
- Oscillator Type:
- External, Internal
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
CY9AF344MAPMC-G-MNE2 FAQ
1.How can I place an order for CY9AF344MAPMC-G-MNE2 through Aetrix?
Please submit a Request for Quotation (RFQ) for CY9AF344MAPMC-G-MNE2 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 CY9AF344MAPMC-G-MNE2 reliable?
The price and inventory of CY9AF344MAPMC-G-MNE2 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for CY9AF344MAPMC-G-MNE2 is usually 5 days.
3.What payment methods are accepted for CY9AF344MAPMC-G-MNE2?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for CY9AF344MAPMC-G-MNE2 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for CY9AF344MAPMC-G-MNE2?
CY9AF344MAPMC-G-MNE2 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your CY9AF344MAPMC-G-MNE2 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 CY9AF344MAPMC-G-MNE2?
For technical support, including CY9AF344MAPMC-G-MNE2 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your CY9AF344MAPMC-G-MNE2 requirements.
6.How does Aetrix verify that CY9AF344MAPMC-G-MNE2 is sourced from the original manufacturer or authorized distributors?
All CY9AF344MAPMC-G-MNE2 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 CY9AF344MAPMC-G-MNE2 meets industry standards.
7.What is the process for return or replacement of CY9AF344MAPMC-G-MNE2?
All CY9AF344MAPMC-G-MNE2 units undergo pre-shipment inspection (PSI). If there is an issue with CY9AF344MAPMC-G-MNE2, 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 CY9AF344MAPMC-G-MNE2 part is unused and in its original packaging.
Return procedure for CY9AF344MAPMC-G-MNE2:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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