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Infineon Technologies CY9BF121KPMC-GNE2
- Part No.:
- CY9BF121KPMC-GNE2
- Manufacturer:
- Infineon Technologies
- Category:
- Microcontrollers
- Package:
- 48-LQFP
- Datasheet:
-
CY9BF121KPMC-GNE2.pdf
- Description:
- IC MCU 32BIT 96KB FLASH 48LQFP
- Quantity:
- Payment:
- Shipping:
Inventory:3,324
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Product details
Overview
CY9BF121KPMC-GNE2 from Infineon Technologies (formerly Cypress) is a 32-bit Arm® Cortex®-M3 microcontroller with 256 KB dual-bank Flash, 32 KB SRAM (16 KB SRAM0 + 16 KB SRAM1), 72 MHz max CPU frequency, and integrated peripherals including UART/CSIO/I²C/LIN, 12-bit ADC (26 channels, 0.8 µs conversion), and RTC. It targets low-power embedded motor control and industrial sensing applications.
For engineers reviewing the CY9BF121KPMC-GNE2 datasheet, CY9BF121KPMC-GNE2 pinout, CY9BF121KPMC-GNE2 application, or CY9BF121KPMC-GNE2 equivalent, key selection criteria include dual-bank Flash for seamless firmware updates, 5 V-tolerant I/O on selected pins, hardware CRC accelerator (CCITT CRC16 & IEEE-802.3 CRC32), six low-power modes (including Deep Standby RTC), and LIN 2.1 compliance for automotive body electronics.
Technical Context
The CY9BF121KPMC-GNE2 implements an 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-code bus, SRAM1 on system bus) for deterministic code/data access.
Peripheral integration includes eight-channel DMA with 32-bit addressing and burst/demand transfer modes; two independent 12-bit successive-approximation ADCs with FIFO-based scanning and priority conversion; and a multi-function serial interface supporting four UART/CSIO/LIN/I²C channels with hardware flow control (RTS/CTS on ch.4) and LIN break field programmability (13–16 bit).
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| CPU Core | Arm Cortex-M3 r2p1, up to 72 MHz - enables real-time deterministic execution for motor control loops and protocol stacks. |
| Flash Memory | 256 KB dual-bank (240 KB upper + 16 KB lower main + 32 KB lower work) - supports background firmware update without halting application. |
| SRAM | 32 KB total (16 KB SRAM0 + 16 KB SRAM1) - SRAM0 optimized for instruction/data cache coherency; SRAM1 for DMA-accessed buffers. |
| ADC | 2 × 12-bit SAR, 26 channels, 0.8 µs @ 5 V - meets sub-microsecond sampling requirements for current sensing in BLDC drives. |
| LIN Interface | LIN 2.1 compliant, master/slave mode, programmable break field (13–16 bit) - ensures interoperability with automotive body control modules. |
| Power Supply | 2.7 V to 5.5 V wide-range operation - simplifies power design across 3.3 V and 5 V industrial systems. |
| CRC Accelerator | CCITT CRC16 and IEEE-802.3 CRC32 hardware engine - offloads integrity checks from CPU during CAN/LIN message validation or flash verification. |
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 | Dual VCC pins (Pins 1, 12) and multiple VSS (Pins 2, 11, 20, 29, 38, 47, 56, 65, 74, 80) ensure stable core/peripheral rail decoupling. |
| XTAL / EXTAL | Main clock oscillator input/output | Accepts 4–48 MHz crystal or external clock source for precise timing and PLL reference. |
| OSC32K / OSC32KOUT | 32.768 kHz sub-clock input/output | Drives RTC and wake-up timers independently of main clock domain for ultra-low-power timekeeping. |
| PA0–PA15, PB0–PB15, etc. | Multi-function GPIO | 65 total high-speed I/O; port relocate function allows dynamic peripheral mapping (e.g., UART to PA6/PA7 or PB10/PB11). |
| AD0–AD25 | Analog input channels | 26 dedicated ADC input pins mapped across ports A–E; support simultaneous sampling via hardware trigger from timers. |
| DA0 / DA1 | 10-bit R-2R DAC outputs | Two analog output channels for sensor calibration references or actuator biasing without external DAC. |
Key Features
| Feature | Design Value |
|---|---|
| Dual-bank Flash memory | Enables Over-The-Air (OTA) firmware updates with zero downtime: one bank executes while the other is erased/written. |
| Hardware CRC accelerator | Reduces CPU load by >90% for CRC16/CRC32 computation - critical for LIN message validation and flash integrity checking. |
| Five clock sources | Includes 4 MHz/100 kHz internal CR oscillators, 32.768 kHz sub-clock, and 4–48 MHz external crystal - eliminates need for external clock components in cost-sensitive designs. |
| Deep Standby RTC mode | Retains RTC count and optionally RAM contents at <1 µA - extends battery life in remote sensors and smart meters. |
| Quadrature Position Counter (QPRC) | Two independent 16-bit position/revolution counters with configurable A/B/Z input edge detection - directly interfaces to incremental encoders in motor feedback loops. |
Applications
| Industrial Motor Control | Automotive Body Electronics |
|---|---|
Use Scenario: Brushless DC (BLDC) motor commutation in HVAC blowers and pump drives. IC Role / Device Role / Timing Role: Real-time PWM generation, current sensing via 12-bit ADC, and quadrature encoder feedback processing using QPRC. Use Value: Integrated 16-bit PPG timers with dead-time insertion and DTIF emergency stop interrupt enable safe, responsive motor control without external gate drivers. | Use Scenario: Door module control with window lift, mirror adjustment, and interior lighting. IC Role / Device Role / Timing Role: LIN 2.1 master node managing communication with slave ECUs (e.g., switch panels, actuators). Use Value: Programmable LIN break field (13–16 bit) and built-in CRC ensure robust message framing and error detection per automotive OEM specifications. |
| Smart Energy Meters | Industrial Sensor Nodes |
Use Scenario: Battery-powered electricity meter with time-of-use billing and tamper detection. IC Role / Device Role / Timing Role: RTC with leap-year support and Deep Standby Stop mode maintaining time and RAM state at <1 µA. Use Value: Dual-bank Flash allows secure firmware upgrades over PLC or RF link while meter remains operational and time-accurate. | Use Scenario: Wireless vibration sensor node monitoring rotating equipment health. IC Role / Device Role / Timing Role: Low-power acquisition of analog sensor signals (accelerometer, temperature) via 12-bit ADC and storage in SRAM1 for later transmission. Use Value: Six low-power modes (Sleep, Timer, RTC, Stop, Deep Standby RTC/Stop) enable adaptive wake-up strategies synchronized to mechanical event triggers. |
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; lacks LIN 2.1 hardware support; 72 MHz Cortex-M3 but no built-in CRC accelerator. | Requires software LIN stack and external RTC for timekeeping; less suitable for OTA updates in safety-critical systems. | Select when cost is primary constraint and LIN functionality is not required. |
| RA4M1 (R7FA4M1AB3CFM) | Arm Cortex-M4F core, 100 MHz, 256 KB Flash, 32 KB SRAM; includes CAN FD and USB, but no LIN hardware block or QPRC. | Better for mixed-signal applications needing floating-point math or USB connectivity; lacks native encoder interface for motor control. | Select when upgrading to Cortex-M4F for enhanced compute or adding USB/CAN FD is needed. |
Compared with STM32F103VCT6 and RA4M1, the CY9BF121KPMC-GNE2 uniquely combines dual-bank Flash for fail-safe firmware updates, hardware LIN 2.1, and QPRC-making it optimal for cost-sensitive, low-power automotive and industrial motion control where protocol compliance and encoder interfacing are mandatory.
Availability
CY9BF121KPMC-GNE2 is available at Aetrix Electronics and suitable for industrial motor control, automotive body electronics, smart energy metering, and wireless sensor node applications requiring stable component supply, long-term lifecycle support, and verified qualification for extended temperature operation.
Supply support for CY9BF121KPMC-GNE2 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 manufacturer specializing in power management, automotive ICs, and microcontrollers, with global R&D and manufacturing infrastructure.
The CY9BF121KPMC-GNE2 belongs to the FM3 family of 32-bit Arm Cortex-M3 microcontrollers, designed specifically for cost-optimized, low-power embedded control in automotive body electronics, industrial automation, and smart metering systems.
FAQ
What is the maximum operating frequency and voltage range for CY9BF121KPMC-GNE2?
The CY9BF121KPMC-GNE2 operates at up to 72 MHz with a supply voltage range of 2.7 V to 5.5 V. This wide voltage range supports direct interfacing with both 3.3 V logic and legacy 5 V industrial sensors and actuators without level-shifting circuitry. The device maintains full peripheral functionality-including ADC accuracy and UART baud rate stability-across the entire voltage range.
Does CY9BF121KPMC-GNE2 support hardware LIN 2.1 communication?
Yes, the CY9BF121KPMC-GNE2 integrates dedicated LIN hardware supporting LIN 2.1 protocol, including master/slave mode, programmable break field (13–16 bit), break delimiter (1–4 bit), and automatic parity/framing error detection. Unlike software-based LIN stacks, this hardware implementation guarantees deterministic timing and reduces CPU overhead to under 5% during LIN frame transmission and reception.
How does the dual-bank Flash architecture improve firmware reliability?
The dual-bank Flash (240 KB upper + 16 KB lower main + 32 KB lower work) enables true background firmware updates: while the application runs from the upper bank, the lower bank can be erased and reprogrammed. This eliminates boot failures due to interrupted writes and supports atomic firmware swaps with rollback capability-critical for remote industrial devices where physical access is impractical.
What low-power modes are available and what is the lowest current consumption?
The CY9BF121KPMC-GNE2 offers six low-power modes: Sleep, Timer, RTC, Stop, Deep Standby RTC, and Deep Standby Stop. In Deep Standby RTC mode with RAM retention disabled, typical current consumption is <1 µA at 25°C using the 32.768 kHz sub-clock. This mode retains RTC timekeeping and allows wake-up via external interrupt or RTC alarm, making it ideal for battery-powered metering and sensor applications.
CY9BF121KPMC-GNE2 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Infineon Technologies
- Package/Case:
- 48-LQFP
- Series:
- FM3 MB9B120M
- Packaging:
- Tray
- 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:
- 96KB (96K 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
- Supplier Device Package:
CY9BF121KPMC-GNE2 FAQ
1.How can I place an order for CY9BF121KPMC-GNE2 through Aetrix?
Please submit a Request for Quotation (RFQ) for CY9BF121KPMC-GNE2 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 CY9BF121KPMC-GNE2 reliable?
The price and inventory of CY9BF121KPMC-GNE2 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for CY9BF121KPMC-GNE2 is usually 5 days.
3.What payment methods are accepted for CY9BF121KPMC-GNE2?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for CY9BF121KPMC-GNE2 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for CY9BF121KPMC-GNE2?
CY9BF121KPMC-GNE2 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your CY9BF121KPMC-GNE2 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 CY9BF121KPMC-GNE2?
For technical support, including CY9BF121KPMC-GNE2 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your CY9BF121KPMC-GNE2 requirements.
6.How does Aetrix verify that CY9BF121KPMC-GNE2 is sourced from the original manufacturer or authorized distributors?
All CY9BF121KPMC-GNE2 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 CY9BF121KPMC-GNE2 meets industry standards.
7.What is the process for return or replacement of CY9BF121KPMC-GNE2?
All CY9BF121KPMC-GNE2 units undergo pre-shipment inspection (PSI). If there is an issue with CY9BF121KPMC-GNE2, 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 CY9BF121KPMC-GNE2 part is unused and in its original packaging.
Return procedure for CY9BF121KPMC-GNE2:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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