Send an Inquiry

To receive a quote for your project, please fill in the following information, and we’ll get back to you promptly.

Submit Inventory List

Please fill in the following information, and we’ll get back to you promptly.

Home > Products > Integrated Circuits (ICs) > Embedded > Microcontrollers

Infineon Technologies CY9AFA44LBPMC1-G-JNE2

Name: CY9AFA44LBPMC1-G-JNE2
Brand: Infineon Technologies
SKU: CY9AFA44LBPMC1-G-JNE2
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

Compare

Part No.:: CY9AFA44LBPMC1-G-JNE2

Manufacturer:: Infineon Technologies

Category:: Microcontrollers

Package:: 64-LQFP

Datasheet:: CY9AFA44LBPMC1-G-JNE2.pdf

Description:: IC MCU 32BIT 288KB FLASH 64LQFP

Quantity:: RFQ Add To RFQ list

Payment:

Shipping:

Inventory:2,694

Please send an inquiry. Send us your inquiry, and we will respond immediately.

Product details

Overview

CY9AFA44LBPMC1-G-JNE2 from Infineon Technologies (formerly Cypress) is a 32-bit ARM® Cortex®-M3 microcontroller with 256 KB dual-bank Flash, 32 KB SRAM (16 KB SRAM0 + 16 KB SRAM1), 40 MHz max CPU frequency, and integrated LCD controller supporting up to 40 SEG × 8 COM. It targets low-power embedded control in industrial HMI, appliance panels, and metering interfaces requiring on-chip display drive and real-time peripheral management.

For engineers reviewing the CY9AFA44LBPMC1-G-JNE2 datasheet, CY9AFA44LBPMC1-G-JNE2 pinout, CY9AFA44LBPMC1-G-JNE2 application, or CY9AFA44LBPMC1-G-JNE2 equivalent, key selection criteria include dual-bank Flash for safe firmware updates, 24-channel 12-bit ADC with 2.0 μs conversion time, RTC with leap-year support, HDMI-CEC/remote receiver capability, and 100-pin LQFP package with 83 GPIOs including 5 V-tolerant pins.

Technical Context

This MCU implements ARM Cortex-M3 r2p1 core with NVIC supporting 48 peripheral interrupts and 16 priority levels, plus 24-bit SysTick timer for RTOS scheduling. Its memory subsystem features dual-operation Flash enabling concurrent read-erase-write across upper (240 KB) and lower (16 KB main + 32 KB work) banks, and split SRAM architecture (SRAM0 on I/D-code bus, SRAM1 on system bus) for deterministic code/data access.

The peripheral set includes 8-channel DMA with 32-bit addressing, 8-channel base timer supporting PWM/PPG/reload modes, 2×12-bit ADCs with FIFO-based scan/priority conversion, and dedicated LCDC with internal bias resistors and blinking control - all operating within 1.65–3.6 V supply range, with extended 2.2–3.6 V range required when LCDC is active.

Key Specifications

Parameter	Value and Actual Design Meaning
CPU Core	ARM Cortex-M3 r2p1, 40 MHz max - enables deterministic real-time control with Thumb-2 instruction set and hardware divide.
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), split-bus architecture - isolates instruction fetch and data access to prevent bus contention.
ADC	2×12-bit SAR, 24 channels, 2.0 μs conversion @ 2.7–3.6 V - delivers high-speed sensor sampling with scan/priority FIFO buffering.
LCDC	40 SEG × 8 COM, internal bias resistors, VV0–VV4 pins - drives segment LCDs directly without external voltage dividers or charge pumps.
RTC	Full BCD calendar (Year/Month/Day/Hour/Min/Sec/Weekday), leap-year correction, alarm interrupt - maintains accurate timekeeping across power cycles.
Low-Power Modes	Six modes including Deep Standby RTC/Stop with RAM retention options - extends battery life in always-on display or metering applications.

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 & I/O) with separate VSS returns - enables noise isolation and flexible PCB layout.
XTAL1/XTAL2	Main clock oscillator input/output	Supports 4–48 MHz crystal or external clock - provides primary timing source for CPU and peripherals.
OSC32IN/OSC32OUT	Sub-clock oscillator input/output	32.768 kHz crystal interface for RTC and low-power wake-up - critical for timekeeping during Stop/Deep Standby modes.
SEG0–SEG39, COM0–COM7	LCD segment/com common drivers	Dedicated pins for direct LCD panel connection - eliminates need for external segment drivers in HMI designs.
P00–P57, P60–P66	General-purpose I/O with port relocation	83 total GPIOs; port relocate function allows dynamic assignment of UART/I2C/CSIO functions to multiple pin groups - increases board layout flexibility.

Key Features

Feature	Design Value
Dual-bank Flash memory	Enables over-the-air firmware updates with zero downtime: one bank executes while the other is erased/written.
Integrated LCD controller	Drives 40×8 segment displays using internal bias resistors and dedicated VVx pins - reduces BOM count by 5+ passive components.
HDMI-CEC/Remote receiver	Hardware-accelerated CEC protocol handling (header auto-transmit, ACK reply, arbitration loss detection) and 4-byte IR buffer - offloads protocol stack from CPU.
Split SRAM architecture	SRAM0 (I/D-code bus) stores code and stack; SRAM1 (system bus) handles DMA/peripheral buffers - prevents memory bandwidth contention.
Real-time clock with leap-year logic	Maintains accurate calendar across decades without host software intervention - essential for energy metering and logging applications.

Applications

Industrial HMI Panels

Smart Energy Meters

Use Scenario: Operator interface for PLC-controlled machinery with local display, button inputs, and status indicators.

IC Role / Device Role / Timing Role: Central controller managing LCD refresh, keypad scanning, UART communication with PLC, and real-time event logging.

Use Value: Dual-bank Flash allows field firmware upgrades without interrupting machine operation; built-in LCDC eliminates external driver ICs.

Use Scenario: Residential electricity meter with LCD display, tamper detection, and time-of-use tariff calculation.

IC Role / Device Role / Timing Role: System-on-chip handling metrology interface, RTC-based billing intervals, secure storage, and LCD output.

Use Value: RTC with leap-year support ensures accurate billing across calendar years; 12-bit ADCs sample metrology sensors at 2.0 μs resolution.

Home Appliance Control

Remote-Controlled Consumer Devices

Use Scenario: Washing machine control board with display, motor control signals, temperature sensing, and user input.

IC Role / Device Role / Timing Role: Main MCU executing control algorithms, driving segmented display, reading thermistors via ADC, and managing PWM motor outputs.

Use Value: 8-channel base timer provides precise PWM generation for motor speed control; low-power Stop mode extends standby battery life.

Use Scenario: Set-top box or AV receiver with IR remote and HDMI-CEC control for unified device management.

IC Role / Device Role / Timing Role: HDMI-CEC transceiver and IR receiver co-processor, handling protocol framing, ACK generation, and repeat-code filtering.

Use Value: Hardware CEC engine reduces CPU load by >70% vs. bit-banged implementation; 4-byte IR buffer captures full remote command sequences.

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 integrated LCDC or HDMI-CEC; requires external segment driver.	Better suited for general-purpose control where display drive is handled externally or not required.	Select when higher CPU performance and larger Flash are needed, and LCD functionality is implemented separately.
RA4M1 (R7FA4M1AB3CFM)	48 MHz Cortex-M4F, 256 KB Flash, 32 KB SRAM, no native LCDC but has segment LCD controller (SLCDC) with 40×4 support.	Offers floating-point unit and enhanced security features; SLCDC supports fewer segments than CY9AFA44LB's 40×8.	Prefer when FPU-enabled signal processing or TrustZone security is required, and display size is ≤40×4.

Compared with STM32F103VET6 and RA4M1, CY9AFA44LBPMC1-G-JNE2 uniquely integrates full 40×8 segment LCD drive with internal bias and HDMI-CEC hardware - reducing component count and firmware complexity in display-centric consumer and industrial devices.

Availability

CY9AFA44LBPMC1-G-JNE2 is available at Aetrix Electronics and suitable for industrial HMI panels, smart energy meters, home appliance control systems, and remote-controlled consumer devices requiring stable component supply, long-term lifecycle support, and qualified automotive-grade traceability.

Supply support for CY9AFA44LBPMC1-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 industrial control solutions, with global manufacturing and quality certification to ISO/TS 16949 and IATF 16949.

CY9AFA44LBPMC1-G-JNE2 belongs to the FM3 family of 32-bit ARM Cortex-M3 microcontrollers, designed specifically for cost-sensitive, low-power embedded applications requiring integrated display control, real-time peripherals, and robust firmware update capability.

FAQ

Does CY9AFA44LBPMC1-G-JNE2 support external memory expansion?

No. Unlike earlier CY9AA40NB series variants (e.g., CY9AFA41LB), the CY9AFA44LBPMC1-G-JNE2 explicitly omits External Bus Interface support per the official datasheet revision *D. It relies solely on on-chip Flash and SRAM for program and data storage, simplifying PCB design and reducing bill-of-materials cost for self-contained applications.

What is the maximum operating voltage when the LCD controller is active?

The device requires VCC = 2.2 V to 3.6 V when the LCD controller is enabled, as specified in the "Recommended Operating Conditions" section (page 72). This higher minimum voltage ensures stable bias generation and segment drive strength for reliable LCD contrast and flicker-free operation across temperature ranges.

Is hardware flow control supported on UART channels?

No. Hardware flow control (CTS/RTS) is explicitly disabled on CY9AFA44LBPMC1-G-JNE2 per the datasheet footnote on page 2: "CY9AFA41LB, FA42LB and FA44LB do not support Hardware Flow control." Only software-based XON/XOFF or application-level handshaking is available for UART channel 4.

How many GPIO pins are 5 V tolerant?

Multiple GPIO pins are 5 V tolerant, but exact count and pin identifiers depend on the specific pin configuration and voltage domain. The datasheet states "Some ports are 5 V tolerant I/O. See Pin Description to confirm the corresponding pins," and the Pin Description table (pages 15–40) identifies P00–P07, P10–P17, P20–P27, P30–P37, P40–P47, and P50–P57 as 5 V tolerant in standard configurations - totaling up to 48 pins.

CY9AFA44LBPMC1-G-JNE2 Specifications

Product attributes: Attribute value

Manufacturer:: Infineon Technologies

Package/Case:: 64-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, I2C, UART/USART

Peripherals:: DMA, LCD, LVD, POR, PWM, WDT

Number of I/O:: 51

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 12x12b

Oscillator Type:: Internal

Operating Temperature:: -40°C ~ 85°C (TA)

Grade:: -

Qualification:: -

Mounting Type:: Surface Mount

Supplier Device Package:

CY9AFA44LBPMC1-G-JNE2 FAQ

1.How can I place an order for CY9AFA44LBPMC1-G-JNE2 through Aetrix?

Please submit a Request for Quotation (RFQ) for CY9AFA44LBPMC1-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 CY9AFA44LBPMC1-G-JNE2 reliable?

The price and inventory of CY9AFA44LBPMC1-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 CY9AFA44LBPMC1-G-JNE2 is usually 5 days.

3.What payment methods are accepted for CY9AFA44LBPMC1-G-JNE2?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for CY9AFA44LBPMC1-G-JNE2 transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for CY9AFA44LBPMC1-G-JNE2?

CY9AFA44LBPMC1-G-JNE2 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your CY9AFA44LBPMC1-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 CY9AFA44LBPMC1-G-JNE2?

For technical support, including CY9AFA44LBPMC1-G-JNE2 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your CY9AFA44LBPMC1-G-JNE2 requirements.

6.How does Aetrix verify that CY9AFA44LBPMC1-G-JNE2 is sourced from the original manufacturer or authorized distributors?

All CY9AFA44LBPMC1-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 CY9AFA44LBPMC1-G-JNE2 meets industry standards.

7.What is the process for return or replacement of CY9AFA44LBPMC1-G-JNE2?

All CY9AFA44LBPMC1-G-JNE2 units undergo pre-shipment inspection (PSI). If there is an issue with CY9AFA44LBPMC1-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 CY9AFA44LBPMC1-G-JNE2 part is unused and in its original packaging.

Return procedure for CY9AFA44LBPMC1-G-JNE2:

1.Submit a request within 90 days.

2.Obtain a Return Material Authorization (RMA) from Aetrix.

Tech Hub

2026-07-29 18650 Battery: Voltage, Capacity, Charging and Pack Design

18650 battery guide covering lithium-ion cell basics, 3.6V/3.7V voltage, 4.2V charging, mAh and Wh capacity, protected cells, chargers, BMS, series-parallel packs, holders, welding and sourcing checks.…

2026-07-27 Hall Effect Sensor: Working Principle, Types, Circuits and Applications

Hall effect sensor guide covering working principle, linear and digital sensors, Arduino circuits, current sensing, speed detection, automotive applications, A3144 examples, signal filtering and datash…

2026-07-20 Product Change Notification (PCN) in Electronic Components: Meaning and Supply Chain Response

Product Change Notification guide for electronic components, covering PCN meaning, PCN vs PDN/EOL, common change types, risk levels, form-fit-function review, engineering validation, BOM control, LTB/L…

2026-07-19 Blend Door Actuator: Symptoms, Location, Reset and Replacement Guide

A practical guide to blend door actuators, covering HVAC function, symptoms, location, AC and heater issues, reset and calibration, replacement cost, electrical diagnosis, compatibility checks, and rep…

2026-07-17 Raspberry Pi Alternatives: Chip-Level Comparison, Compatibility and Replacement Guide

Engineering guide to Raspberry Pi alternatives, covering chip-level differences, Orange Pi, ROCK, Jetson, Banana Pi, NanoPi, Compute Module, Pico, GPIO, camera, HAT compatibility, and replacement risks…

2026-07-13 How to Test Dynamic Load Response in Low-Voltage High-Current Buck Converters

Engineering guide to dynamic load response testing for high-current buck converters, covering load step setup, slew rate, Vcore undershoot, overshoot, recovery time, probe location, output capacitors a…

2026-07-08 Output Capacitor Selection for High-Current ASIC Vcore Rails

Engineering guide to output capacitor selection for ASIC Vcore rails, covering bulk capacitors, polymer capacitors, MLCC decoupling, DC bias, ESR, ESL, placement, transient response and substitution ri…

2026-07-07 High-Current ASIC Core Power Supply Design: 12-Phase Buck, PMBus and Dynamic Load Response

Engineering guide to high-current ASIC Vcore rails, covering 12-phase buck architecture, PMBus control, dynamic load testing, output capacitor networks, smart power stage selection, thermal design and …

2026-07-06 Voltage Regulator: Types, Circuits, Testing and Selection Guide

Voltage regulator guide covering linear, LDO, 7805, Zener, adjustable, buck, VRM and alternator regulators, with design checks, testing methods, troubleshooting and datasheet-based selection.

2026-06-30 Amplifiers Explained: Types, Circuits, Gain, Classes and Applications

Amplifier guide covering voltage, current and power amplification, gain, feedback, amplifier classes, audio and RF applications, op-amp circuits, transimpedance amplifiers, datasheet selection and trou…