Infineon Technologies CY9AF141MBBGL-GK9E1
- Part No.:
- CY9AF141MBBGL-GK9E1
- Manufacturer:
- Infineon Technologies
- Category:
- Microcontrollers
- Package:
- 96-LFBGA
- Datasheet:
-
CY9AF141MBBGL-GK9E1.pdf
- Description:
- IC MCU 32BIT 64KB FLASH 96FBGA
- Quantity:
- Payment:

- Shipping:

Inventory:4,788
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Product details
Overview
CY9AF141MBBGL-GK9E1 from Infineon Technologies (formerly Cypress) is a 32-bit ARM® Cortex®-M3 microcontroller with dual-bank flash (240 KB + 16 KB), 32 KB on-chip SRAM (16 KB SRAM0 + 16 KB SRAM1), and operation up to 40 MHz. It integrates UART/CSIO/I²C serial 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 sensor edge nodes.
For engineers reviewing the CY9AF141MBBGL-GK9E1 datasheet, CY9AF141MBBGL-GK9E1 pinout, CY9AF141MBBGL-GK9E1 application, or CY9AF141MBBGL-GK9E1 equivalent, key selection criteria include dual-operation flash architecture, 5 V-tolerant I/O support on selected pins, hardware flow control on UART ch.4, and SWJ-DP debug interface compatibility with ARM CoreSight tools.
Technical Context
This MCU implements the ARMv7-M architecture (Cortex-M3 r2p1) with NVIC supporting 48 peripheral interrupts and 16 priority levels, plus a 24-bit SysTick timer for RTOS scheduling. Its memory subsystem separates instruction and data paths via SRAM0 (I/D-code bus) and SRAM1 (system bus), enabling concurrent CPU and DMA access without contention.
The peripheral set includes eight base timers (configurable as PWM, PPG, reload, or PWC), dual watchdogs (hardware clocked by 100 kHz CR oscillator), and CRC accelerator supporting CCITT CRC16 and IEEE-802.3 CRC32 - all operating within 1.65–3.6 V supply range and validated across Sleep, RTC, Stop, and Deep Standby power modes.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| CPU Core | ARM Cortex-M3 r2p1, 40 MHz max - enables deterministic real-time task execution with Thumb-2 instruction set. |
| Flash Memory | 256 KB dual-bank (240 KB upper + 16 KB lower), 0-wait-state read - supports background erase/write during code execution. |
| SRAM | 32 KB total (16 KB SRAM0 + 16 KB SRAM1), split bus architecture - isolates core instruction fetch from DMA data movement. |
| ADC | 24-channel 12-bit SAR, 2.0 µs conversion @ 2.7–3.6 V - meets sub-µs sampling requirements for closed-loop motor control. |
| Power Supply | 1.65 V to 3.6 V operation - compatible with single-cell Li-ion, 3.3 V LDO, and energy-harvesting sources. |
| Low-Power Modes | Six modes including Deep Standby RTC (RAM retention optional) - achieves µA-level sleep current for battery-backed applications. |
| Debug Interface | Serial Wire JTAG Debug Port (SWJ-DP) - enables full-core debugging and trace without dedicated JTAG pins. |
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/VSS pairs per side ensure stable core and I/O rail decoupling; supports independent noise filtering. |
| P00–P07, P10–P17, etc. | General-purpose I/O | Up to 83 GPIOs; port relocate function allows dynamic peripheral pin mapping; some pins 5 V tolerant for mixed-voltage interfacing. |
| XTAL1 / XTAL2 | Main clock oscillator input | Accepts 4–48 MHz crystal or external clock source; drives PLL for system clock generation. |
| OSC32IN / OSC32OUT | Sub-clock oscillator | Connects to 32.768 kHz crystal for RTC and low-power timer functions; operates during Stop and Deep Standby modes. |
| SWDIO / SWCLK | Debug interface signals | Shared with GPIO; enables programming and debugging via 2-pin Serial Wire Debug (SWD) protocol. |
Key Features
| Feature | Design Value |
|---|---|
| Dual-operation Flash memory | Enables firmware updates without halting application execution - critical for field-upgradable industrial controllers. |
| Hardware UART flow control (ch.4) | CTS/RTS handshaking prevents buffer overflow at high baud rates - essential for reliable RS-485 gateway communication. |
| HDMI-CEC transceiver | Integrated header block auto-generation and ACK reply logic - eliminates external CEC PHY for AV equipment remote control stacks. |
| Port relocate function | Runtime remapping of peripheral functions to alternate GPIOs - simplifies PCB layout and avoids signal congestion on dense boards. |
| CRC accelerator (CRC16/CRC32) | Offloads integrity checking from CPU during firmware OTA or sensor data logging - reduces interrupt latency by >90% vs software CRC. |
Applications
| Industrial Motor Control | Smart Sensor Node |
|---|---|
Use Scenario: Closed-loop BLDC motor drive with position feedback and thermal monitoring. IC Role / Device Role / Timing Role: Real-time motion controller executing FOC algorithm, ADC-sampling current/voltage, and generating PWM outputs. Use Value: 2.0 µs ADC conversion and 40 MHz CPU enable <10 µs control loop cycles; dual-bank flash permits safe firmware patching mid-operation. | Use Scenario: Battery-powered environmental sensor hub aggregating temperature, humidity, and CO₂ data. IC Role / Device Role / Timing Role: Low-power data concentrator managing I²C sensors, performing local preprocessing, and transmitting via UART to gateway. Use Value: Deep Standby RTC mode draws <1 µA while maintaining timekeeping; 32 KB SRAM retains calibration tables and event logs across wake cycles. |
| Home Automation Gateway | Energy Metering Interface |
Use Scenario: Zigbee-to-Bluetooth bridge controlling lighting, HVAC, and security devices via HDMI-CEC and IR. IC Role / Device Role / Timing Role: Protocol translator with integrated CEC transmitter/receiver and remote control receiver (4-byte buffer). Use Value: Hardware CEC block handles arbitration, START/EOM/ACK timing, and error detection - removes need for external CEC PHY IC. | Use Scenario: DIN-rail mounted electricity meter with tamper detection and pulse output interface. IC Role / Device Role / Timing Role: System supervisor monitoring LVD1/LVD2 thresholds, triggering alerts on voltage sag or brownout events. Use Value: Dual-stage LVD generates interrupt (LVD1) then reset (LVD2) - ensures clean shutdown before EEPROM corruption during power failure. |
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 | Single-bank 256 KB flash, no dual-operation capability; 72 MHz max clock; lacks HDMI-CEC and port relocate. | Higher performance but no native CEC support - requires external transceiver for AV control systems. | Select when higher CPU throughput is prioritized over field-upgrade safety and AV protocol integration. |
| RP2040 | ARM Cortex-M0+, dual-core, 2 MB flash, USB device - no CEC, no hardware flow control, no LVD2 reset. | Cost-sensitive consumer IoT; lacks industrial-grade voltage monitoring and robust flash update architecture. | Select for USB-native embedded applications where cost and dual-core concurrency outweigh industrial reliability features. |
Compared with STM32F103VCT6 and RP2040, CY9AF141MBBGL-GK9E1 uniquely combines dual-bank flash for fail-safe firmware updates, integrated HDMI-CEC for AV system control, and dual-stage LVD for certified power-fail response - making it optimal for certified industrial and home automation edge controllers.
Availability
CY9AF141MBBGL-GK9E1 is available at Aetrix Electronics and suitable for industrial motor control, smart sensor nodes, home automation gateways, and energy metering interfaces requiring stable component supply and long-term lifecycle support.
Supply support for CY9AF141MBBGL-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 industrial control solutions, with global manufacturing and R&D infrastructure.
The CY9A140NB series belongs to Infineon's FM3 family of general-purpose 32-bit microcontrollers, designed specifically for cost-sensitive, low-power embedded applications requiring rich analog integration and robust field-upgrade capability.
FAQ
What debug interfaces does CY9AF141MBBGL-GK9E1 support?
It supports Serial Wire JTAG Debug Port (SWJ-DP) only - no Embedded Trace Macrocell (ETM) support per datasheet Rev. *D. SWJ-DP provides full-core debugging, flash programming, and real-time variable inspection using standard ARM CoreSight tools like Keil µVision or Segger J-Link.
Does CY9AF141MBBGL-GK9E1 support external memory expansion?
No - unlike other CY9A140NB variants (e.g., CY9AF142LB), this part (CY9AF141MB) explicitly omits External Bus Interface support per datasheet Section 1. Product Lineup and footnote on Page 2. It relies solely on on-chip flash and SRAM for program and data storage.
What is the maximum operating frequency and voltage range?
The device operates up to 40 MHz at 1.65–3.6 V supply. Frequency scaling is constrained by flash wait-state configuration and voltage - above 30 MHz requires ≥2.7 V per Electrical Characteristics Table 12.2. It does not support overclocking beyond 40 MHz under any condition.
How many UART channels support hardware flow control?
Only UART channel 4 supports hardware flow control (CTS/RTS) as confirmed in datasheet Section "Multi-function Serial Interface" and footnote on Page 2. Channels 0–3 and 5–7 lack RTS/CTS logic and must use software handshaking or fixed-rate transmission.
CY9AF141MBBGL-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:
- 64KB (64K x 8)
- Program Memory Type:
- FLASH
- EEPROM Size:
- -
- RAM Size:
- 16K 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:
CY9AF141MBBGL-GK9E1 FAQ
1.How can I place an order for CY9AF141MBBGL-GK9E1 through Aetrix?
Please submit a Request for Quotation (RFQ) for CY9AF141MBBGL-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 CY9AF141MBBGL-GK9E1 reliable?
The price and inventory of CY9AF141MBBGL-GK9E1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for CY9AF141MBBGL-GK9E1 is usually 5 days.
3.What payment methods are accepted for CY9AF141MBBGL-GK9E1?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for CY9AF141MBBGL-GK9E1 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for CY9AF141MBBGL-GK9E1?
CY9AF141MBBGL-GK9E1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your CY9AF141MBBGL-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 CY9AF141MBBGL-GK9E1?
For technical support, including CY9AF141MBBGL-GK9E1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your CY9AF141MBBGL-GK9E1 requirements.
6.How does Aetrix verify that CY9AF141MBBGL-GK9E1 is sourced from the original manufacturer or authorized distributors?
All CY9AF141MBBGL-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 CY9AF141MBBGL-GK9E1 meets industry standards.
7.What is the process for return or replacement of CY9AF141MBBGL-GK9E1?
All CY9AF141MBBGL-GK9E1 units undergo pre-shipment inspection (PSI). If there is an issue with CY9AF141MBBGL-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 CY9AF141MBBGL-GK9E1 part is unused and in its original packaging.
Return procedure for CY9AF141MBBGL-GK9E1:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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