Infineon Technologies CY9AFA44MBPMC1-G-JNE2
- Part No.:
- CY9AFA44MBPMC1-G-JNE2
- Manufacturer:
- Infineon Technologies
- Category:
- Microcontrollers
- Package:
- 80-LQFP
- Datasheet:
-
CY9AFA44MBPMC1-G-JNE2.pdf
- Description:
- IC MCU 32BIT 288KB FLASH 80LQFP
- Quantity:
- Payment:

- Shipping:

Inventory:3,762
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Product details
Overview
CY9AFA44MBPMC1-G-JNE2 from Infineon Technologies (formerly Cypress) is a 32-bit ARM® Cortex®-M3 microcontroller with 256 KB dual-bank Flash (240 KB upper + 16 KB lower), 32 KB SRAM (16 KB SRAM0 + 16 KB SRAM1), and integrated peripherals including LCD controller (40×8 SEG/COM), 24-channel 12-bit ADC (2.0 μs conversion), 8-channel DMA, and HDMI-CEC/remote receiver. It targets low-power embedded control in industrial HMI and consumer remote interface applications.
For engineers reviewing the CY9AFA44MBPMC1-G-JNE2 datasheet, CY9AFA44MBPMC1-G-JNE2 pinout, CY9AFA44MBPMC1-G-JNE2 application, or CY9AFA44MBPMC1-G-JNE2 equivalent, key selection criteria include dual-bank Flash for seamless firmware updates, 5 V-tolerant GPIO support, RTC with leap-year handling, deep-standby power modes down to RTC/Stop, and hardware CRC acceleration for data integrity in connected devices.
Technical Context
This MCU implements the ARM Cortex-M3 r2p1 core at up to 40 MHz with NVIC supporting 48 peripheral interrupts and 16 priority levels. Its memory subsystem includes dual-operation Flash enabling concurrent read-erase-write across banks, and two independent SRAM blocks (SRAM0 on I/D-code bus, SRAM1 on system bus) for deterministic real-time execution.
The peripheral set is optimized for human-interface and sensor-edge applications: LCDC drives 40-segment × 8-common LCDs without external bias circuitry; HDMI-CEC supports header-block auto-transmission and arbitration-loss detection; and the 24-channel 12-bit ADC features scanning mode with 16-step FIFO and priority-level conversion - all operating within 1.65–3.6 V supply range.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| CPU Core | ARM Cortex-M3 r2p1, up to 40 MHz - enables deterministic real-time task scheduling with 24-bit SysTick timer for OS integration. |
| Flash Memory | 256 KB dual-bank (240 KB upper + 16 KB lower), 0-wait-state read - supports background firmware update without halting execution. |
| SRAM | 32 KB total (16 KB SRAM0 + 16 KB SRAM1), independently bus-connected - isolates instruction/data access from system DMA traffic. |
| ADC | 24-channel 12-bit SAR, 2.0 μs conversion @ 2.7–3.6 V - meets sub-10 μs sampling requirements for motor current sensing and analog front-end monitoring. |
| LCDC | 40 SEG × 8 COM, internal dividing resistor, VV0–VV4 bias pins - eliminates external LCD bias network, reducing BOM count in portable HMIs. |
| Low-Power Modes | Six modes including Deep Standby RTC/Stop with RAM retention option - achieves <1 μA RTC-keeping current for battery-backed timekeeping. |
| CRC Accelerator | CCITT CRC16 & IEEE-802.3 CRC32 hardware engine - offloads integrity checks from CPU during UART/I2C frame reception or Flash firmware validation. |
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 domains (core/analog) with dedicated VSS pairs - ensures noise isolation for ADC and LCDC operation. |
| P00–P07, P10–P17, etc. | General-purpose I/O | Up to 83 GPIOs; port relocate function allows dynamic peripheral mapping; some pins 5 V tolerant - simplifies legacy interface bridging. |
| XTAL1 / XTAL2 | Main clock oscillator input | Supports 4–48 MHz crystal or external clock - enables precise timing for USB-free communication and motor control loops. |
| OSC32IN / OSC32OUT | Sub-clock oscillator | 32.768 kHz crystal interface for RTC and low-power wake-up - maintains calendar accuracy during Deep Standby Stop mode. |
| SEG0–SEG39, COM0–COM7 | LCDC segment/common drivers | Dedicated LCD output pins with internal voltage divider - drives static or multiplexed LCDs without external resistors or charge pumps. |
Key Features
| Feature | Design Value |
|---|---|
| Dual-bank Flash architecture | Enables Over-The-Air (OTA) firmware updates with zero downtime: one bank executes while the other is erased/written. |
| HDMI-CEC transmitter/receiver | Hardware-accelerated CEC protocol stack with automatic START/EOM/ACK generation and arbitration-loss interrupt - reduces MCU firmware overhead in TV/AV remote control systems. |
| Port relocate function | Runtime remapping of peripheral functions (UART, I2C, CSIO) to alternate GPIO pins - increases PCB layout flexibility and avoids signal congestion on fixed pinouts. |
| Two-stage Low-Voltage Detector (LVD) | LVD1 triggers interrupt for graceful shutdown; LVD2 asserts reset below threshold - prevents corrupted Flash writes or SRAM data loss during brown-out events. |
| Hardware CRC accelerator | Offloads CCITT CRC16 (0x1021) and IEEE-802.3 CRC32 (0x04C11DB7) computation - cuts software CRC latency by >95% in bootloader and sensor data packet validation. |
Applications
| Industrial HMI Panel | Smart Remote Control Unit |
|---|---|
Use Scenario: Standalone LCD-based operator interface for HVAC controllers or PLC edge nodes with local parameter adjustment and status display. IC Role / Device Role / Timing Role: Primary system controller managing LCD refresh, button scan, ADC-based sensor reading, and UART-based fieldbus communication. Use Value: Integrated LCDC with internal bias and 40×8 drive capability eliminates external LCD driver IC; dual-bank Flash enables secure field firmware upgrades without service interruption. | Use Scenario: IR+HDMI-CEC hybrid remote for smart TVs and streaming boxes, supporting both legacy IR command sets and bidirectional CEC control. IC Role / Device Role / Timing Role: Central protocol processor handling IR demodulation, CEC frame encoding/decoding, and Bluetooth LE coexistence logic. Use Value: Hardware CEC engine with automatic ACK and arbitration-loss detection reduces firmware complexity; 32 KB SRAM buffers multi-protocol command queues reliably. |
| Energy Meter Front-End | White Goods Appliance Controller |
Use Scenario: Residential electricity meter with LCD display, tamper detection, and pulse-output interface for utility data logging. IC Role / Device Role / Timing Role: Real-time measurement coordinator interfacing with metrology ADC, RTC for timestamping, and optical pulse transmitter. Use Value: 24-channel 12-bit ADC with scanning FIFO captures multiple sensor inputs (voltage, current, temperature) synchronously; RTC with leap-year support ensures accurate billing period tracking. | Use Scenario: Washing machine main control board managing motor drive timing, water valve sequencing, temperature sensing, and user interface feedback. IC Role / Device Role / Timing Role: System-on-chip controller executing PID motor control, ADC-based NTC monitoring, and LCDC-based cycle progress display. Use Value: Base timers with PWM/PPG modes generate precise motor phase signals; low-power Stop/Deep Standby modes extend standby battery life in always-on appliance UIs. |
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, 48 KB SRAM, no integrated LCDC or HDMI-CEC | Requires external LCD driver and CEC transceiver IC; higher performance but larger code footprint for same HMI tasks | Select when higher CPU throughput is required and external component count is acceptable. |
| RP2040 (Raspberry Pi) | Dual-core ARM Cortex-M0+, 2 MB Flash (external), 264 KB SRAM, no hardware CEC or LCDC | Relies on software-based CEC and SPI-driven LCD; lacks analog peripherals like 24-channel ADC and LVD | Select for cost-sensitive, Wi-Fi/BLE-enabled projects where open-source SDK and dual-core flexibility outweigh analog integration needs. |
Compared with STM32F103VCT6 and RP2040, CY9AFA44MBPMC1-G-JNE2 delivers superior analog integration (24-channel ADC, LCDC, LVD), hardware CEC acceleration, and dual-bank Flash - making it optimal for resource-constrained, low-power HMI and remote-control applications where BOM reduction and deterministic firmware update safety are critical.
Availability
CY9AFA44MBPMC1-G-JNE2 is available at Aetrix Electronics and suitable for industrial HMI panels, smart remote control units, energy meter front-ends, and white goods appliance controllers requiring stable component supply and long-term lifecycle support.
Supply support for CY9AFA44MBPMC1-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 German semiconductor leader specializing in power management, automotive MCUs, and security solutions, with global manufacturing and R&D infrastructure.
This device belongs to the FM3 family of 32-bit ARM Cortex-M3 microcontrollers, designed specifically for cost-sensitive, low-power embedded control applications requiring high analog integration, LCD driving, and protocol acceleration (e.g., HDMI-CEC, CRC) without external components.
FAQ
Does CY9AFA44MBPMC1-G-JNE2 support external bus interface?
No. According to the official FM3 Peripheral Manual (Document Number 002-05633 Rev. *D), CY9AFA44MBPMC1-G-JNE2 - along with CY9AFA41LB/MB and FA42LB/MB - does not implement the External Bus Interface. This omission reduces pin count and simplifies PCB routing for applications that rely solely on on-chip Flash/SRAM and serial peripherals.
What debug interfaces are supported?
CY9AFA44MBPMC1-G-JNE2 supports Serial Wire JTAG Debug Port (SWJ-DP) only. The Embedded Trace Macrocell (ETM) is not implemented in this variant, as confirmed in the datasheet revision history and peripheral manual. SWJ-DP provides full breakpoint, watchpoint, and memory access capabilities via standard ARM debug tools.
Is hardware flow control available on UART channels?
No. Hardware flow control (CTS/RTS) is explicitly unsupported on CY9AFA44MBPMC1-G-JNE2, as noted in the datasheet footnote for UART functionality. Only UART channel 4 supports hardware flow control in higher-pin-count variants (e.g., 144-pin packages); this 100-pin LQFP version omits those pins and associated logic.
What is the maximum operating voltage when using the LCDC?
When the LCD controller is active, the supply voltage must be between 2.2 V and 3.6 V. This higher minimum (vs. 1.65 V for core-only operation) ensures sufficient headroom for internal LCD bias generation and stable segment/common driver output swing across temperature and process variation.
CY9AFA44MBPMC1-G-JNE2 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Infineon Technologies
- Package/Case:
- 80-LQFP
- Series:
- FM3 MB9AA40NB
- 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
- Peripherals:
- DMA, LCD, 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:
CY9AFA44MBPMC1-G-JNE2 FAQ
1.How can I place an order for CY9AFA44MBPMC1-G-JNE2 through Aetrix?
Please submit a Request for Quotation (RFQ) for CY9AFA44MBPMC1-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 CY9AFA44MBPMC1-G-JNE2 reliable?
The price and inventory of CY9AFA44MBPMC1-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 CY9AFA44MBPMC1-G-JNE2 is usually 5 days.
3.What payment methods are accepted for CY9AFA44MBPMC1-G-JNE2?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for CY9AFA44MBPMC1-G-JNE2 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for CY9AFA44MBPMC1-G-JNE2?
CY9AFA44MBPMC1-G-JNE2 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your CY9AFA44MBPMC1-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 CY9AFA44MBPMC1-G-JNE2?
For technical support, including CY9AFA44MBPMC1-G-JNE2 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your CY9AFA44MBPMC1-G-JNE2 requirements.
6.How does Aetrix verify that CY9AFA44MBPMC1-G-JNE2 is sourced from the original manufacturer or authorized distributors?
All CY9AFA44MBPMC1-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 CY9AFA44MBPMC1-G-JNE2 meets industry standards.
7.What is the process for return or replacement of CY9AFA44MBPMC1-G-JNE2?
All CY9AFA44MBPMC1-G-JNE2 units undergo pre-shipment inspection (PSI). If there is an issue with CY9AFA44MBPMC1-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 CY9AFA44MBPMC1-G-JNE2 part is unused and in its original packaging.
Return procedure for CY9AFA44MBPMC1-G-JNE2:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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