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Infineon Technologies CY9BF122LQN-G-AVERE2
- Part No.:
- CY9BF122LQN-G-AVERE2
- Manufacturer:
- Infineon Technologies
- Category:
- Microcontrollers
- Package:
- 64-VFQFN Exposed Pad
- Datasheet:
-
CY9BF122LQN-G-AVERE2.pdf
- Description:
- IC MCU 32BIT 160KB FLASH 64QFN
- Quantity:
- Payment:
- Shipping:
Inventory:4,183
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Product details
Overview
CY9BF122LQN-G-AVERE2 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 72 MHz. It integrates UART, I²C, LIN, CSIO, 12-bit ADC (26 channels, 0.8 µs conversion), 10-bit DAC (2 channels), RTC, QPRC, and eight-channel DMA - deployed in motor control, industrial sensing, and embedded HMI systems.
For engineers reviewing the CY9BF122LQN-G-AVERE2 datasheet, CY9BF122LQN-G-AVERE2 pinout, CY9BF122LQN-G-AVERE2 application, or CY9BF122LQN-G-AVERE2 equivalent, key selection criteria include dual-bank Flash for safe firmware updates, 5 V-tolerant GPIOs (up to 65 pins in 80-pin LQFP), low-power modes (Deep Standby RTC/Stop), and integrated LIN 2.1 support for automotive body electronics.
Technical Context
This MCU implements a tightly coupled 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-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 bus, SRAM1 on system bus) for deterministic code/data access.
The peripheral set is optimized for real-time control: eight base timers support PWM/PPG/reload/PWC modes; two QPRC units track encoder position/revolution with configurable AIN/BIN/ZIN edge detection; and the multi-function timer includes input capture, output compare, A/D activation, and DTIF for motor emergency stop - all synchronized via shared clock domains and DMA triggers.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| CPU Core | Arm Cortex-M3 r2p1, up to 72 MHz - enables deterministic real-time execution with hardware divide and Thumb-2 instruction set. |
| Flash Memory | 256 KB dual-bank (240 KB upper + 16 KB lower main + 32 KB lower work) - supports background firmware update without halting application code. |
| SRAM | 32 KB total (16 KB SRAM0 + 16 KB SRAM1), split bus architecture - isolates instruction fetch and data access to prevent contention. |
| ADC | 12-bit SAR, 26 channels, 0.8 µs conversion @ 5 V - delivers high-speed analog acquisition for closed-loop motor control or sensor fusion. |
| DAC | 10-bit R-2R, 2 channels - provides precise analog output for biasing, calibration, or waveform generation. |
| Communication | UART/CSIO/I²C/LIN (Rev. 2.1) across 8 serial channels - enables mixed-protocol connectivity in automotive and industrial gateways. |
| Low-Power Modes | Six modes including Deep Standby RTC/Stop with RAM retention options - extends battery life in always-on sensor nodes or metering devices. |
Pinout & Package
The CY9BF122LQN-G-AVERE2 is housed in an 80-pin LQFP package (12 mm × 12 mm, 0.5 mm pitch) with exposed thermal pad. Pin functions are fully relocatable per peripheral via register-controlled port mapping, and up to 65 GPIOs support 5 V tolerance on designated pins.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VCC / VSS | Power supply / Ground | Wide-input 2.7–5.5 V operation enables direct interface with 3.3 V or 5 V systems without level shifters. |
| XTAL1 / XTAL2 | Main crystal oscillator inputs | Supports 4–48 MHz external crystals for precise timing and PLL reference - critical for LIN baud accuracy and USB-free communication. |
| OSC32K / OSC32KOUT | 32.768 kHz sub-clock inputs | Drives RTC and wake-up timers independently of main clock - ensures timekeeping during deep sleep with minimal current draw. |
| PA0–PA15, PB0–PB15, etc. | Multi-function GPIOs | 65 total high-speed pins with pull-up control, direct read capability, and peripheral function relocation - simplifies PCB layout and enables flexible signal routing. |
| AD0–AD25 | Analog input channels | 26 dedicated ADC inputs mapped to GPIOs - allows simultaneous sampling of multiple sensors without external multiplexing. |
| DA0 / DA1 | Analog output channels | Two independent 10-bit DAC outputs - used for programmable reference generation or analog actuator control. |
Key Features
| Feature | Design Value |
|---|---|
| Dual-bank Flash memory | Enables over-the-air firmware updates with zero downtime by erasing one bank while executing from the other. |
| Peripheral port relocation | Allows dynamic assignment of UART, LIN, or timer functions to any compatible GPIO - eliminates fixed pin constraints in layout. |
| LIN 2.1 protocol engine | Hardware-accelerated break field (13–16 bit) and delimiter (1–4 bit) generation - meets automotive diagnostic and actuator command timing requirements. |
| Quadrature Position Counter (QPRC) | 16-bit position + 16-bit revolution counters with configurable A/B/Z input edges - directly interfaces rotary encoders in motor drives without CPU overhead. |
| CRC accelerator (CRC16/CRC32) | Offloads integrity checking for CAN/LIN message payloads or Flash data - reduces software latency and improves real-time response. |
Applications
| Motor Control System | Automotive Body Controller |
|---|---|
Use Scenario: Closed-loop BLDC motor drive with hall-effect or encoder feedback in HVAC blowers or power seats. IC Role / Device Role / Timing Role: Real-time controller executing FOC algorithms, generating PWM with dead-time insertion, and capturing quadrature signals via QPRC. Use Value: Integrated QPRC, DTIF interrupt, and multi-channel PWM eliminate external logic, reducing BOM count and board area. | Use Scenario: Central body control module managing door locks, window lifts, and lighting via LIN clusters. IC Role / Device Role / Timing Role: LIN master node coordinating slave devices, handling diagnostics, and monitoring switch inputs with low-power wake-on-LIN. Use Value: Hardware LIN 2.1 support ensures ±1.5% baud accuracy at 19.2 kbps and automatic break detection - compliant with OEM specifications. |
| Industrial Sensor Node | Smart Energy Meter |
Use Scenario: Battery-powered environmental monitor collecting temperature, humidity, and pressure via analog sensors. IC Role / Device Role / Timing Role: Low-power host processor acquiring data via 12-bit ADC, storing logs in Flash, and transmitting via UART/I²C to gateway. Use Value: Deep Standby RTC mode draws <1 µA while maintaining time and RAM state - enables 10+ year battery life with periodic wake-ups. | Use Scenario: Revenue-grade electricity meter requiring tamper detection, RTC logging, and isolated communication. IC Role / Device Role / Timing Role: Secure metering controller with CRC-accelerated data integrity checks, RTC timestamping, and isolated UART/RS-485 interface. Use Value: Dual-bank Flash allows secure firmware updates without interrupting metering accuracy; LVD2 reset prevents corruption during brown-out events. |
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, 64 KB SRAM, no LIN hardware - requires software stack for LIN 2.1. | Lacks integrated LIN transceiver interface and QPRC; suitable for cost-sensitive non-automotive control. | Select when higher Flash/SRAM capacity is needed and LIN is not required, or when using external LIN PHY. |
| RA4M1 (R7FA4M1AB3CFM) | 48 MHz Cortex-M4F, 256 KB Flash, 32 KB SRAM, integrated LIN, but no QPRC or dual-bank Flash. | Offers FPU and TrustZone but lacks encoder counter hardware - better for DSP-heavy tasks than motor position tracking. | Prefer for applications needing floating-point math or security extensions, where QPRC is handled externally. |
Compared with STM32F103VET6 and RA4M1, the CY9BF122LQN-G-AVERE2 uniquely combines LIN 2.1 hardware acceleration, dual-bank Flash for robust OTA, and dedicated QPRC - making it optimal for automotive body electronics and encoder-based motion control where timing determinism and protocol compliance are critical.
Availability
CY9BF122LQN-G-AVERE2 is available at Aetrix Electronics and suitable for motor control systems, automotive body electronics, industrial sensor nodes, and smart energy meters requiring stable component supply across long-lifecycle deployments.
Supply support for CY9BF122LQN-G-AVERE2 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 global semiconductor leader headquartered in Munich, Germany, specializing in power management, automotive ICs, and embedded controllers.
The CY9BF122LQN-G-AVERE2 belongs to the FM3 family of 32-bit Arm Cortex-M3 microcontrollers, designed specifically for cost-optimized, low-power embedded control in automotive, industrial, and consumer applications requiring real-time responsiveness and functional safety readiness.
FAQ
What is the maximum operating frequency and supported voltage range?
The CY9BF122LQN-G-AVERE2 operates at up to 72 MHz with a supply voltage range of 2.7 V to 5.5 V. This wide VCC range allows direct interfacing with both 3.3 V and 5 V logic families and simplifies power design in mixed-voltage systems without level-shifting components.
Does this MCU support hardware LIN 2.1 protocol implementation?
Yes - the CY9BF122LQN-G-AVERE2 includes dedicated LIN hardware supporting LIN 2.1, including programmable break field (13–16 bits) and delimiter (1–4 bits), automatic sync detection, and error reporting. No software stack is required for basic master/slave operation.
How does the dual-bank Flash architecture improve firmware reliability?
Dual-bank Flash enables true background programming: while application code runs from the upper bank, the lower bank can be erased and reprogrammed. This allows safe over-the-air updates without halting real-time operations - essential for automotive and industrial field-deployed systems.
Is there hardware support for encoder position measurement?
Yes - the device integrates two Quadrature Position/Revolution Counters (QPRC) with 16-bit position and revolution counters, configurable edge detection on AIN/BIN/ZIN inputs, and compare registers. These operate independently of the CPU, delivering deterministic timing for motor commutation and position feedback.
CY9BF122LQN-G-AVERE2 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Infineon Technologies
- Package/Case:
- 64-VFQFN Exposed Pad
- Series:
- FM3 MB9B120M
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Programmable:
- Not Verified
- Core Processor:
- ARM® Cortex®-M3
- Core Size:
- 32-Bit
- Speed:
- 72MHz
- Connectivity:
- CSIO, I2C, LINbus, UART/USART
- Peripherals:
- DMA, LVD, POR, PWM, WDT
- Number of I/O:
- 50
- Program Memory Size:
- 160KB (160K x 8)
- Program Memory Type:
- FLASH
- EEPROM Size:
- -
- RAM Size:
- 16K x 8
- Voltage - Supply (Vcc/Vdd):
- 2.7V ~ 5.5V
- Data Converters:
- A/D 23x12b SAR; D/A 2x10b
- Oscillator Type:
- External, Internal
- Operating Temperature:
- -40°C ~ 105°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
CY9BF122LQN-G-AVERE2 FAQ
1.How can I place an order for CY9BF122LQN-G-AVERE2 through Aetrix?
Please submit a Request for Quotation (RFQ) for CY9BF122LQN-G-AVERE2 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 CY9BF122LQN-G-AVERE2 reliable?
The price and inventory of CY9BF122LQN-G-AVERE2 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for CY9BF122LQN-G-AVERE2 is usually 5 days.
3.What payment methods are accepted for CY9BF122LQN-G-AVERE2?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for CY9BF122LQN-G-AVERE2 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for CY9BF122LQN-G-AVERE2?
CY9BF122LQN-G-AVERE2 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your CY9BF122LQN-G-AVERE2 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 CY9BF122LQN-G-AVERE2?
For technical support, including CY9BF122LQN-G-AVERE2 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your CY9BF122LQN-G-AVERE2 requirements.
6.How does Aetrix verify that CY9BF122LQN-G-AVERE2 is sourced from the original manufacturer or authorized distributors?
All CY9BF122LQN-G-AVERE2 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 CY9BF122LQN-G-AVERE2 meets industry standards.
7.What is the process for return or replacement of CY9BF122LQN-G-AVERE2?
All CY9BF122LQN-G-AVERE2 units undergo pre-shipment inspection (PSI). If there is an issue with CY9BF122LQN-G-AVERE2, 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 CY9BF122LQN-G-AVERE2 part is unused and in its original packaging.
Return procedure for CY9BF122LQN-G-AVERE2:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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