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Infineon Technologies CY9AF141LBQN-G-AVE2
- Part No.:
- CY9AF141LBQN-G-AVE2
- Manufacturer:
- Infineon Technologies
- Category:
- Microcontrollers
- Package:
- 64-VFQFN Exposed Pad
- Datasheet:
-
CY9AF141LBQN-G-AVE2.pdf
- Description:
- IC MCU 32BIT 64KB FLASH 64QFN
- Quantity:
- Payment:
- Shipping:
Inventory:3,285
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Product details
Overview
CY9AF141LBQN-G-AVE2 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 sensor nodes requiring deterministic real-time response.
For engineers reviewing the CY9AF141LBQN-G-AVE2 datasheet, CY9AF141LBQN-G-AVE2 pinout, CY9AF141LBQN-G-AVE2 application, or CY9AF141LBQN-G-AVE2 equivalent, key selection criteria include dual-bank Flash for seamless firmware updates, 5 V-tolerant GPIO support, hardware CRC acceleration (CRC16/CRC32), and SWJ-DP debug interface compatibility with standard ARM toolchains.
Technical Context
This MCU implements the ARMv7-M architecture (r2p1) with NVIC supporting 48 peripheral interrupts and 16 priority levels. Its memory subsystem features independent I-code/D-code buses for SRAM0 and system bus for SRAM1, enabling concurrent instruction fetch and data access without contention.
The peripheral set includes eight base timers (configurable as PWM/PPG/reload/PWC), two watchdogs (hardware clocked by 100 kHz CR oscillator), and a dedicated HDMI-CEC controller with automatic ACK generation and arbitration loss detection - all operating within 1.65–3.6 V supply range and validated across Sleep, Stop, and Deep Standby RTC power modes.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| CPU Core | ARM Cortex-M3 r2p1, 40 MHz max - enables deterministic interrupt latency & RTOS scheduling |
| 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 on I/D bus + 16 KB SRAM1 on system bus) - decouples core instruction/data traffic from peripheral DMA |
| 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 |
| Low-Power Modes | Six modes including Deep Standby RTC with RAM retention - extends battery life in always-on sensor endpoints |
| Debug Interface | Serial Wire JTAG Debug Port (SWJ-DP) - enables full-core debug, flash programming, and trace without external emulator |
| Clock Sources | Five sources: 4–48 MHz main XTAL, 32.768 kHz sub-clock, 4 MHz/100 kHz CR oscillators, Main PLL - ensures robust timing under voltage/temp variation |
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 1.65–3.6 V supply domains with separate analog/digital ground pins - reduces noise coupling in mixed-signal operation |
| XTAL / EXTAL | Main crystal oscillator input/output | Supports 4–48 MHz fundamental-mode crystals - provides high-accuracy system clock for timing-critical peripherals |
| OSC32K / OSC32KIN | 32.768 kHz sub-clock crystal | Drives RTC and Watch Counter independently - maintains timekeeping during deep sleep with <1 µA current draw |
| PA0–PA15, PB0–PB15, etc. | Multi-function GPIO | Up to 83 fast I/O ports with per-pin pull-up control and port relocate function - simplifies PCB layout and firmware pin mapping |
| TXD4 / RXD4 | UART channel 4 I/O | Hardware flow control (CTS/RTS) enabled only on ch.4 - supports reliable high-speed serial communication with external modems |
| AD0–AD23 | Analog input channels | 24 dedicated ADC inputs mapped to GPIO pins - allows simultaneous sampling of motor phase currents and temperature sensors |
Key Features
| Feature | Design Value |
|---|---|
| Dual-bank Flash memory | Enables over-the-air firmware updates without halting application execution - critical for remote industrial devices |
| Hardware CRC accelerator | Offloads CCITT CRC16 and IEEE-802.3 CRC32 computation - reduces CPU load by >90% for secure firmware image verification |
| HDMI-CEC controller | Integrated transmitter/receiver with automatic ACK, START/EOM generation, and arbitration loss detection - eliminates external protocol IC in AV control systems |
| Port relocate function | Allows dynamic assignment of peripheral functions (UART, I²C, timer outputs) to any compatible GPIO - increases board design flexibility and reuse |
| Two independent watchdogs | Hardware watchdog (100 kHz CR clock) remains active in all low-power modes except Deep Standby Stop - ensures fail-safe recovery even during ultra-low-power operation |
Applications
| Industrial Motor Control | Smart Home Sensor Hub |
|---|---|
Use Scenario: Closed-loop control of BLDC motors in HVAC blowers using field-oriented control (FOC). IC Role / Device Role / Timing Role: Real-time execution of FOC algorithm, PWM generation, and current sensing via 24-channel ADC with 2.0 µs conversion. Use Value: Dual-bank Flash enables safe firmware updates during runtime; 8-channel DMA transfers ADC samples and PWM registers without CPU intervention. | Use Scenario: Multi-sensor aggregation (temperature, humidity, motion) with local decision logic and Zigbee/Thread radio interfacing. IC Role / Device Role / Timing Role: Low-power coordinator managing sensor polling, data fusion, and radio wake-up scheduling via RTC and Watch Counter. Use Value: Deep Standby RTC mode draws <1 µA while maintaining time and RAM state - extends coin-cell battery life beyond 5 years. |
| Automated Test Equipment | Industrial Human-Machine Interface |
Use Scenario: Precision signal generation and measurement in portable calibration tools with isolated USB-C connectivity. IC Role / Device Role / Timing Role: Synchronized waveform generation (via PWM timers) and acquisition (via ADC scanning mode with FIFO) at fixed intervals. Use Value: Base timers configured as 32-bit reload counters provide jitter-free trigger signals; CRC accelerator validates captured data integrity before USB transfer. | Use Scenario: Touch-enabled panel controller with LED backlight dimming, button debounce, and CAN bus diagnostics reporting. IC Role / Device Role / Timing Role: Peripheral hub managing capacitive touch sensing, PWM-controlled LED drivers, and UART-to-CAN bridge logic. Use Value: 5 V-tolerant GPIOs interface directly with legacy industrial I/O; port relocate function maps UART and I²C to non-conflicting pins for compact layout. |
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 dual-bank Flash or HDMI-CEC | Lacks integrated CEC and dual-bank update capability; requires external components for robust firmware updates | Choose when higher CPU speed is prioritized over field-upgradable reliability and AV control integration |
| RP2040 | Dual-core ARM Cortex-M0+, 2 MB Flash, 264 KB SRAM, no hardware CRC or CEC, USB device only | No RTC, no hardware watchdog with CR clock, no 5 V-tolerant I/O - unsuitable for industrial voltage environments | Prefer for cost-sensitive consumer IoT where USB mass storage boot and dual-core simplicity outweigh industrial robustness needs |
Compared with STM32F103VCT6 and RP2040, CY9AF141LBQN-G-AVE2 uniquely delivers dual-bank Flash for zero-downtime firmware updates, hardware-accelerated CRC for secure boot, and HDMI-CEC compliance - making it optimal for industrial edge controllers requiring long-term field maintainability and AV ecosystem interoperability.
Availability
CY9AF141LBQN-G-AVE2 is available at Aetrix Electronics and suitable for industrial motor control, smart home sensor hubs, automated test equipment, and industrial human-machine interfaces requiring stable component supply across multi-year production cycles.
Supply support for CY9AF141LBQN-G-AVE2 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 industrial automation and appliance control applications demanding low-power operation, robust peripheral integration, and long-term supply stability.
FAQ
Does CY9AF141LBQN-G-AVE2 support external memory expansion?
No. Unlike other members of the CY9A140NB series, CY9AF141LBQN-G-AVE2 explicitly omits the External Bus Interface (EBI). Pin assignments and datasheet Section 2 confirm no EBI signals (e.g., CSx, RD, WR, AD[0:24]) are available - limiting memory expansion to on-chip Flash and SRAM only.
What debug interfaces does CY9AF141LBQN-G-AVE2 support?
CY9AF141LBQN-G-AVE2 supports Serial Wire JTAG Debug Port (SWJ-DP) only - Embedded Trace Macrocell (ETM) is not implemented per datasheet Rev. *D, Page 5. This enables full-core debugging, flash programming, and basic trace via standard ARM-compliant tools like Keil MDK or SEGGER J-Link, but excludes instruction-level pipeline trace.
Is hardware flow control available on all UART channels?
No. Hardware flow control (CTS/RTS) is supported exclusively on UART channel 4, as stated in the datasheet Section "Multi-function Serial Interface". Channels 0–3 lack RTS/CTS signal routing; their pin assignments do not include these functions, and register descriptions confirm flow control bits are absent for those channels.
How is the unique device ID accessed in firmware?
The 41-bit unique ID is stored in a dedicated ROM location at address 0x0000_01FC. It is readable via direct memory access or through the System Control Block (SCB) identification registers. No special unlock sequence or privilege mode is required - the value is static and accessible from any software context after reset.
CY9AF141LBQN-G-AVE2 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Infineon Technologies
- Package/Case:
- 64-VFQFN Exposed Pad
- 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, I2C, SPI, UART/USART
- Peripherals:
- LVD, POR, PWM, WDT
- Number of I/O:
- 51
- 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 12x12b
- Oscillator Type:
- Internal
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
CY9AF141LBQN-G-AVE2 FAQ
1.How can I place an order for CY9AF141LBQN-G-AVE2 through Aetrix?
Please submit a Request for Quotation (RFQ) for CY9AF141LBQN-G-AVE2 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 CY9AF141LBQN-G-AVE2 reliable?
The price and inventory of CY9AF141LBQN-G-AVE2 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for CY9AF141LBQN-G-AVE2 is usually 5 days.
3.What payment methods are accepted for CY9AF141LBQN-G-AVE2?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for CY9AF141LBQN-G-AVE2 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for CY9AF141LBQN-G-AVE2?
CY9AF141LBQN-G-AVE2 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your CY9AF141LBQN-G-AVE2 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 CY9AF141LBQN-G-AVE2?
For technical support, including CY9AF141LBQN-G-AVE2 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your CY9AF141LBQN-G-AVE2 requirements.
6.How does Aetrix verify that CY9AF141LBQN-G-AVE2 is sourced from the original manufacturer or authorized distributors?
All CY9AF141LBQN-G-AVE2 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 CY9AF141LBQN-G-AVE2 meets industry standards.
7.What is the process for return or replacement of CY9AF141LBQN-G-AVE2?
All CY9AF141LBQN-G-AVE2 units undergo pre-shipment inspection (PSI). If there is an issue with CY9AF141LBQN-G-AVE2, 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 CY9AF141LBQN-G-AVE2 part is unused and in its original packaging.
Return procedure for CY9AF141LBQN-G-AVE2:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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