Infineon Technologies CY9AF144MABGL-GK9E1
- Part No.:
- CY9AF144MABGL-GK9E1
- Manufacturer:
- Infineon Technologies
- Category:
- Microcontrollers
- Package:
- 96-LFBGA
- Datasheet:
-
CY9AF144MABGL-GK9E1.pdf
- Description:
- IC MCU 32BIT 288KB FLASH 96FBGA
- Quantity:
- Payment:

- Shipping:

Inventory:4,900
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
CY9AF144MABGL-GK9E1 from Infineon Technologies (formerly Cypress) is a 32-bit ARM® Cortex®-M3 microcontroller with 256 KB dual-bank Flash, 32 KB on-chip SRAM (16 KB SRAM0 + 16 KB SRAM1), and operation up to 40 MHz. It integrates UART/CSIO/I²C interfaces, 24-channel 12-bit ADC (2.0 µs conversion), 8-channel DMA, RTC, HDMI-CEC, and six low-power modes - deployed in industrial motor control and smart metering systems.
For engineers reviewing the CY9AF144MABGL-GK9E1 datasheet, CY9AF144MABGL-GK9E1 pinout, CY9AF144MABGL-GK9E1 application, or CY9AF144MABGL-GK9E1 equivalent, key selection criteria include dual-bank Flash for concurrent read/erase, 5 V-tolerant I/O support on selected pins, hardware watchdog clocked by 100 kHz CR oscillator, and SWJ-DP debug interface without ETM.
Technical Context
This MCU implements the ARM Cortex-M3 r2p1 core with NVIC supporting 48 peripheral interrupts and 16 priority levels, plus a 24-bit SysTick timer for RTOS scheduling. Its memory subsystem features dual-bank Flash enabling background programming and independent SRAM banks (SRAM0 on I/D bus, SRAM1 on system bus) for deterministic real-time execution.
The peripheral set includes eight base timers (configurable as PWM/PPG/reload/PWC), two watchdogs (hardware and software), CRC accelerator for CCITT CRC16 and IEEE-802.3 CRC32, and HDMI-CEC transceiver with automatic ACK generation and arbitration loss detection - all operating within 1.65–3.6 V supply range.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| CPU Core | ARM Cortex-M3 r2p1, 40 MHz max - enables deterministic interrupt latency and RTOS compatibility |
| Flash Memory | 256 KB dual-bank (240 KB upper + 16 KB lower), 0-wait-state read - supports firmware updates without halting execution |
| SRAM | 32 KB total (16 KB SRAM0 + 16 KB SRAM1), separate bus connections - 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-µs sampling requirements for motor current sensing |
| Low-Power Modes | Six modes including Deep Standby RTC/Stop with RAM retention - extends battery life in metering and remote sensor nodes |
| Debug Interface | Serial Wire JTAG Debug Port (SWJ-DP) only - provides full debug visibility without ETM trace overhead |
| Supply Voltage | 1.65 V to 3.6 V - compatible with single-cell Li-ion and regulated 3.3 V industrial rails |
Pinout & Package
CY9AF144MABGL-GK9E1 uses a 100-pin LQFP package (14 mm × 14 mm, 0.5 mm pitch) with exposed thermal pad. Pin functions are fully defined in Cypress document 002-05637 Rev. *D, pages 9–15.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VCC / VSS | Power supply / Ground | Dual VCC/VSS pairs per side ensure stable core/peripheral rail decoupling |
| PA0–PA15, PB0–PB15, etc. | General-purpose I/O | Up to 83 GPIOs; port relocate function allows flexible peripheral mapping |
| XTAL1 / XTAL2 | Main clock oscillator input | Supports 4–48 MHz crystal or external clock source for precise timing |
| OSC32IN / OSC32OUT | Sub-clock oscillator input/output | Drives 32.768 kHz RTC crystal for calendar timekeeping in low-power modes |
| SWDIO / SWCLK | Debug interface signals | Enable non-intrusive debugging and flash programming via SWJ-DP |
Key Features
| Feature | Design Value |
|---|---|
| Dual-bank Flash architecture | Enables Over-The-Air (OTA) firmware updates while application runs from alternate bank |
| Hardware watchdog with CR oscillator | Remains active in Sleep, Timer, and RTC modes - ensures fail-safe recovery during partial power-down |
| HDMI-CEC transceiver | Integrated START/EOM/ACK generation and automatic ACK reply - eliminates external protocol IC in AV control designs |
| 5 V-tolerant I/O pins | Allows direct interfacing with legacy 5 V logic without level shifters - reduces BOM count in mixed-voltage systems |
| CRC accelerator (CRC16/CRC32) | Offloads integrity checks from CPU - cuts firmware validation time by >90% for large data transfers |
Applications
| Industrial Motor Control | Smart Electricity Metering |
|---|---|
Use Scenario: Closed-loop field-oriented control of 3-phase BLDC motors in HVAC compressors and pumps. IC Role / Device Role / Timing Role: Real-time execution of FOC algorithms, ADC sampling of phase currents, and PWM waveform generation with <1 µs jitter. Use Value: Dual-bank Flash enables seamless firmware upgrades during maintenance windows; 24-channel ADC captures simultaneous current/voltage samples. | Use Scenario: ANSI C12.19-compliant energy meter with tamper detection, tariff switching, and secure data logging. IC Role / Device Role / Timing Role: Time-critical metrology processing, RTC-backed event timestamping, and AES-encrypted flash storage management. Use Value: Deep Standby RTC mode retains time and RAM state on backup coin cell; LVD2 reset prevents corrupted EEPROM writes during brownout. |
| Home Automation Gateway | Industrial Remote I/O Module |
Use Scenario: Zigbee/Z-Wave hub aggregating sensor data from lighting, thermostats, and door locks. IC Role / Device Role / Timing Role: Protocol bridging between wireless stacks and wired interfaces (UART/I²C), with secure boot and OTA update handling. Use Value: Hardware watchdog ensures recovery from stack corruption; 8-channel DMA moves encrypted payloads without CPU load. | Use Scenario: DIN-rail mounted I/O node converting analog sensor inputs (4–20 mA, 0–10 V) to Modbus TCP over Ethernet. IC Role / Device Role / Timing Role: High-accuracy analog acquisition, deterministic Modbus response timing, and watchdog-monitored communication stack. Use Value: 12-bit ADC with scanning FIFO simplifies multi-channel polling; 5 V-tolerant GPIOs interface directly with PLC-level digital inputs. |
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, no dual-bank architecture; lacks HDMI-CEC and CRC accelerator | Requires external components for CEC protocol and CRC offload; higher CPU load for integrity checks | Choose when higher clock speed and USB 2.0 FS are required, and CEC/CRC are not needed |
| NXP LPC1769FBD100 | 100 MHz Cortex-M3, 512 KB Flash, no dual-bank Flash; includes Ethernet MAC but no HDMI-CEC | Supports embedded Ethernet but adds complexity for non-networked metering or motor control | Prefer when 10/100 Mbps Ethernet connectivity is mandatory and dual-bank Flash is secondary |
Compared with STM32F103VCT6 and LPC1769FBD100, CY9AF144MABGL-GK9E1 uniquely combines dual-bank Flash for safe OTA updates, integrated HDMI-CEC for consumer electronics control, and hardware CRC acceleration - making it optimal for cost-sensitive, low-power, protocol-rich embedded controllers where firmware reliability and peripheral integration are critical.
Availability
CY9AF144MABGL-GK9E1 is available at Aetrix Electronics and suitable for industrial motor control, smart electricity metering, home automation gateways, and industrial remote I/O modules requiring stable component supply across long-lifecycle deployments.
Supply support for CY9AF144MABGL-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 leader specializing in power management, automotive MCUs, and security solutions, with global manufacturing and R&D infrastructure.
CY9AF144MABGL-GK9E1 belongs to the FM3 family of 32-bit ARM Cortex-M3 microcontrollers, designed specifically for cost-optimized, low-power industrial and consumer embedded control applications requiring high peripheral integration and robust firmware update capability.
FAQ
Does CY9AF144MABGL-GK9E1 support external memory expansion?
No. Unlike earlier CY9A140NB variants such as CY9AF141LB, this part (CY9AF144MABGL-GK9E1) explicitly omits External Bus Interface support per datasheet section "Features" and page 2 footnote. It relies solely on on-chip Flash and SRAM for code and data storage.
What debug capabilities does CY9AF144MABGL-GK9E1 provide?
CY9AF144MABGL-GK9E1 supports Serial Wire JTAG Debug Port (SWJ-DP) only - no Embedded Trace Macrocell (ETM). This enables full breakpoint, watchpoint, and memory inspection functionality but excludes real-time instruction trace. Debug is accessible via standard ARM-compliant tools like Keil µVision or SEGGER J-Link.
Is hardware flow control supported on UART channels?
No. Hardware flow control (CTS/RTS) is explicitly excluded for CY9AF144MABGL-GK9E1 per datasheet footnote on page 2: "CY9AF141LB, F142LB and F144LB do not support Hardware Flow control." Only software-based XON/XOFF or application-layer handshaking is available.
How is the unique device ID accessed?
The 41-bit unique ID is stored in a dedicated ROM location and readable via the System Control Block (SCB) register map using standard ARM CMSIS functions. It is factory-programmed and immutable, intended for secure boot key derivation or device authentication in firmware.
CY9AF144MABGL-GK9E1 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Infineon Technologies
- Package/Case:
- 96-LFBGA
- Series:
- FM3 MB9A140NB
- 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, SPI, UART/USART
- Peripherals:
- 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:
CY9AF144MABGL-GK9E1 FAQ
1.How can I place an order for CY9AF144MABGL-GK9E1 through Aetrix?
Please submit a Request for Quotation (RFQ) for CY9AF144MABGL-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 CY9AF144MABGL-GK9E1 reliable?
The price and inventory of CY9AF144MABGL-GK9E1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for CY9AF144MABGL-GK9E1 is usually 5 days.
3.What payment methods are accepted for CY9AF144MABGL-GK9E1?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for CY9AF144MABGL-GK9E1 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for CY9AF144MABGL-GK9E1?
CY9AF144MABGL-GK9E1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your CY9AF144MABGL-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 CY9AF144MABGL-GK9E1?
For technical support, including CY9AF144MABGL-GK9E1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your CY9AF144MABGL-GK9E1 requirements.
6.How does Aetrix verify that CY9AF144MABGL-GK9E1 is sourced from the original manufacturer or authorized distributors?
All CY9AF144MABGL-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 CY9AF144MABGL-GK9E1 meets industry standards.
7.What is the process for return or replacement of CY9AF144MABGL-GK9E1?
All CY9AF144MABGL-GK9E1 units undergo pre-shipment inspection (PSI). If there is an issue with CY9AF144MABGL-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 CY9AF144MABGL-GK9E1 part is unused and in its original packaging.
Return procedure for CY9AF144MABGL-GK9E1:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
CY9AF144MABGL-GK9E1 Tags

-
ATTINY4-TSHR
Microchip Technology

-
ATTINY10-TSHR
Microchip Technology

-
ATTINY10-TS8R
Microchip Technology

-
ATTINY202-SSNR
Microchip Technology

-
ATTINY202-SSFR
Microchip Technology

-
ATTINY402-SSNR
Microchip Technology

-
PIC16F15213T-I/MF
Microchip Technology

-
PIC16F15213-E/MF
Microchip Technology

-
PIC10F200T-I/OT
Microchip Technology

-
ATTINY412-SSNR
Microchip Technology

-
PIC10F202T-I/OT
Microchip Technology

-
ATTINY404-SSNR
Microchip Technology
Tech Hub
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.…
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…
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…
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…
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…
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…
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…
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 …
Voltage regulator guide covering linear, LDO, 7805, Zener, adjustable, buck, VRM and alternator regulators, with design checks, testing methods, troubleshooting and datasheet-based selection.
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…

