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Infineon Technologies CY9BF122KQN-G-AVERE2
- Part No.:
- CY9BF122KQN-G-AVERE2
- Manufacturer:
- Infineon Technologies
- Category:
- Microcontrollers
- Package:
- 48-VFQFN Exposed Pad
- Datasheet:
-
CY9BF122KQN-G-AVERE2.pdf
- Description:
- IC MCU 32BIT 160KB FLASH 48QFN
- Quantity:
- Payment:
- Shipping:
Inventory:1,314
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Product details
Overview
CY9BF122KQN-G-AVERE2 from Infineon Technologies (formerly Cypress) is a 32-bit Arm® Cortex®-M3 microcontroller in the FM3 family, operating up to 72 MHz with dual-bank 256 KB Flash (240 KB upper + 16 KB lower), 32 KB SRAM (16 KB SRAM0 + 16 KB SRAM1), and integrated peripherals including 26-channel 12-bit ADC, dual 10-bit DAC, eight UART/CSIO/I²C/LIN serial channels, and hardware CRC accelerator. It targets low-power embedded motor control and industrial sensing applications.
For engineers reviewing the CY9BF122KQN-G-AVERE2 datasheet, CY9BF122KQN-G-AVERE2 pinout, CY9BF122KQN-G-AVERE2 application, or CY9BF122KQN-G-AVERE2 equivalent, key selection criteria include dual-bank Flash for seamless firmware updates, 5 V-tolerant I/O on selected pins, six low-power modes (including Deep Standby RTC), real-time clock with leap-year support, and SWJ-DP debug interface with unique 41-bit ID.
Technical Context
The CY9BF122KQN-G-AVERE2 implements an Arm Cortex-M3 r2p1 core with NVIC supporting 48 peripheral interrupts and 16 priority levels, plus a 24-bit SysTick timer for OS task scheduling. Its memory subsystem features dual-operation Flash enabling concurrent read-erase-write across banks and two independent SRAM blocks (SRAM0 on I/D-code bus, SRAM1 on system bus) for deterministic access timing.
Peripheral integration includes a DMA controller with eight channels supporting byte/half-word/word transfers across 4 GB address space, quadrature position/revolution counters with 16-bit position and revolution registers, and a multi-function timer unit capable of PWM generation, dead-time insertion, and A/D activation triggers - all optimized for closed-loop motor control.
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), 0-wait-state read - supports background firmware update without halting application code. |
| SRAM | 32 KB total: 16 KB SRAM0 (I/D-code bus), 16 KB SRAM1 (system bus) - isolates core fetch/store traffic from peripheral DMA access. |
| ADC | 26-channel 12-bit SAR, 0.8 μs conversion @ 5 V, FIFO-supported scanning - meets fast-sampling requirements for multi-phase motor current sensing. |
| DAC | 2-channel 10-bit R-2R - provides analog reference outputs for sensor biasing or feedback loop conditioning. |
| Low-Power Modes | Six modes including Deep Standby RTC with RAM retention - extends battery life in always-on industrial monitoring nodes. |
| Clock Sources | Five sources: 4–48 MHz main oscillator, 32.768 kHz sub-clock, 4 MHz/100 kHz CR oscillators, Main PLL - enables robust clock supervision and failover. |
Pinout & Package
Package: 80-pin LQFP (12 mm × 12 mm, 0.5 mm pitch), RoHS-compliant, moisture sensitivity level 3.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VCC / VSS | Power supply / Ground | Core and I/O power domains; supports 2.7–5.5 V operation with separate analog ground (VSSA) for ADC/DAC integrity. |
| XTAL / EXTAL | Main crystal oscillator input/output | Accepts 4–48 MHz external crystal; enables precise timing for communication interfaces and PWM base clocks. |
| OSC32K / OSC32KOUT | 32.768 kHz sub-clock input/output | Drives RTC and wake-up timers; supports low-power timekeeping during Sleep/Stop modes. |
| PA0–PA15, PB0–PB15, etc. | Multi-function GPIO | Up to 65 high-speed I/O pins with port relocate function and per-pin pull-up control; some pins are 5 V tolerant for mixed-voltage interfacing. |
| TMS / TCK / TDO / TDI / nTRST | SWJ-DP debug interface | Enables JTAG/SWD programming and real-time debugging without dedicated debug header; supports boundary scan and flash programming. |
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. |
| Hardware CRC accelerator | Offloads CCITT CRC16 and IEEE-802.3 CRC32 computation from CPU, reducing data integrity check latency by >90% vs. software implementation. |
| Quadrature Position Counter (QPRC) | Directly interfaces rotary encoders with configurable A/B/Z input edge detection, 16-bit position/revolution counters, and compare registers for index-triggered actions. |
| Multi-function timer with DTIF | Generates PWM with programmable dead time and triggers emergency stop (DTIF) interrupt on fault condition - critical for IGBT/MOSFET gate drive safety. |
| Real-Time Clock with leap-year logic | Maintains accurate calendar time across decades without host MCU intervention; supports alarm interrupts at minute/hour/day granularity. |
Applications
| Industrial Motor Control | Smart Sensor Node |
|---|---|
|
Use Scenario: Closed-loop control of BLDC/PMSM motors in HVAC blowers and pump drives. IC Role / Device Role / Timing Role: Real-time execution of FOC algorithms, PWM generation with dead-time insertion, and ADC sampling of phase currents at 20+ kHz. Use Value: Integrated QPRC and multi-function timer eliminate external counter ICs; dual-bank Flash enables field-upgradable motor profiles. |
Use Scenario: Battery-powered environmental sensor hub aggregating temperature, humidity, and CO₂ readings. IC Role / Device Role / Timing Role: Low-power scheduler managing periodic sensor reads, I²C communication, and RTC-based wake-up from Deep Standby Stop mode. Use Value: Six low-power modes and sub-μA RTC operation extend battery life beyond 5 years; 5 V-tolerant I/O simplifies interface to legacy sensors. |
| Automotive Body Electronics | PLC I/O Module |
|
Use Scenario: LIN bus gateway controlling seat/mirror actuators and lighting modules in entry-level vehicles. IC Role / Device Role / Timing Role: LIN master node with protocol Rev. 2.1 compliance, break field generation (13–16 bit), and error detection (framing, parity, overrun). Use Value: On-chip LIN transceiver support reduces BOM count; hardware CRC ensures message integrity across noisy vehicle harnesses. |
Use Scenario: DIN-rail mounted digital I/O expansion module for industrial PLCs with isolated inputs/outputs. IC Role / Device Role / Timing Role: Central controller managing opto-isolated GPIO, UART-to-RS485 conversion, and watchdog supervision of fieldbus communication. Use Value: Dual watchdogs (hardware + software) guarantee fail-safe reset under brownout or firmware hang; wide 2.7–5.5 V supply tolerates industrial rail fluctuations. |
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 hardware CRC accelerator. | Lacks native LIN support; requires external transceiver and software CRC for similar functionality. | Choose when higher SRAM headroom is needed and dual-bank Flash is not required for firmware updates. |
| RP2040 | Dual-core Arm Cortex-M0+, 2 MB Flash, 264 KB SRAM, USB device, no LIN/RTC/CRC accelerator. | No built-in LIN, RTC, or hardware CRC; relies on PIO for protocol emulation and software timekeeping. | Prefer for cost-sensitive consumer IoT where USB connectivity outweighs industrial protocol support. |
Compared with STM32F103VCT6 and RP2040, the CY9BF122KQN-G-AVERE2 delivers differentiated value in automotive body electronics and industrial motion control through native LIN 2.1, dual-bank Flash for safe OTA, and hardware-accelerated CRC - reducing firmware complexity and improving functional safety compliance.
Availability
CY9BF122KQN-G-AVERE2 is available at Aetrix Electronics and suitable for industrial motor control, smart sensor nodes, automotive body electronics, and PLC I/O modules requiring stable component supply, long-term lifecycle support, and qualified automotive-grade sourcing.
Supply support for CY9BF122KQN-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 AG is a German semiconductor manufacturer specializing in power management, automotive MCUs, and security solutions, with global R&D and manufacturing infrastructure.
This part belongs to the FM3 microcontroller product line, designed specifically for cost-optimized, low-power embedded control in industrial automation, motor drives, and automotive body electronics - emphasizing peripheral integration, functional safety readiness, and long-lifecycle support.
FAQ
What is the maximum operating frequency and supported voltage range?
The CY9BF122KQN-G-AVERE2 operates at up to 72 MHz and supports a wide supply voltage range of 2.7 V to 5.5 V. This allows direct interfacing with both 3.3 V and 5 V systems without level shifters, and maintains stable performance across industrial temperature ranges (–40°C to +85°C) under varying rail conditions.
Does this MCU support LIN communication natively?
Yes - the CY9BF122KQN-G-AVERE2 integrates full LIN 2.1 protocol support in its serial interface units, including hardware break field generation (13–16 bit), break delimiter control (1–4 bit), and automatic error detection (parity, framing, overrun). No external LIN transceiver 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 the upper bank runs active firmware, the lower bank can be erased and reprogrammed - allowing atomic firmware updates without halting execution. This eliminates risk of corruption during power loss and supports secure OTA deployment in remote industrial assets.
Is the real-time clock (RTC) operational in all low-power modes?
The RTC remains active in Sleep, Timer, RTC, and Deep Standby RTC modes, but is disabled in Stop and Deep Standby Stop modes. In Deep Standby RTC mode, it continues counting with optional RAM retention, enabling calendar-aware wake-up events after months of battery operation.
CY9BF122KQN-G-AVERE2 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Infineon Technologies
- Package/Case:
- 48-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:
- 35
- 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 14x12b SAR; D/A 2x10b
- Oscillator Type:
- External, Internal
- Operating Temperature:
- -40°C ~ 105°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount, Wettable Flank
- Supplier Device Package:
CY9BF122KQN-G-AVERE2 FAQ
1.How can I place an order for CY9BF122KQN-G-AVERE2 through Aetrix?
Please submit a Request for Quotation (RFQ) for CY9BF122KQN-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 CY9BF122KQN-G-AVERE2 reliable?
The price and inventory of CY9BF122KQN-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 CY9BF122KQN-G-AVERE2 is usually 5 days.
3.What payment methods are accepted for CY9BF122KQN-G-AVERE2?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for CY9BF122KQN-G-AVERE2 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for CY9BF122KQN-G-AVERE2?
CY9BF122KQN-G-AVERE2 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your CY9BF122KQN-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 CY9BF122KQN-G-AVERE2?
For technical support, including CY9BF122KQN-G-AVERE2 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your CY9BF122KQN-G-AVERE2 requirements.
6.How does Aetrix verify that CY9BF122KQN-G-AVERE2 is sourced from the original manufacturer or authorized distributors?
All CY9BF122KQN-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 CY9BF122KQN-G-AVERE2 meets industry standards.
7.What is the process for return or replacement of CY9BF122KQN-G-AVERE2?
All CY9BF122KQN-G-AVERE2 units undergo pre-shipment inspection (PSI). If there is an issue with CY9BF122KQN-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 CY9BF122KQN-G-AVERE2 part is unused and in its original packaging.
Return procedure for CY9BF122KQN-G-AVERE2:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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