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Infineon Technologies CY9BF121MPMC-GNE2
- Part No.:
- CY9BF121MPMC-GNE2
- Manufacturer:
- Infineon Technologies
- Category:
- Microcontrollers
- Package:
- 80-LQFP
- Datasheet:
-
CY9BF121MPMC-GNE2.pdf
- Description:
- IC MCU 32BIT 96KB FLASH 80LQFP
- Quantity:
- Payment:
- Shipping:
Inventory:3,510
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Product details
Overview
CY9BF121MPMC-GNE2 from Infineon Technologies (formerly Cypress) is a 32-bit Arm® Cortex®-M3 microcontroller with dual-bank 256 KB Flash, 32 KB SRAM (16 KB SRAM0 + 16 KB SRAM1), and integrated peripherals including UART/CSIO/I²C/LIN interfaces, 12-bit ADC (26 channels, 0.8 µs conversion), dual 10-bit DACs, and six low-power modes. It operates at up to 72 MHz and supports 5 V-tolerant I/O in an 80-pin LQFP package for motor control and industrial embedded systems.
For engineers reviewing the CY9BF121MPMC-GNE2 datasheet, CY9BF121MPMC-GNE2 pinout, CY9BF121MPMC-GNE2 application, or CY9BF121MPMC-GNE2 equivalent, key selection criteria include dual-bank Flash execution capability, LIN 2.1 compliance, hardware CRC acceleration (CRC16/CRC32), RTC with leap-year support, and SWJ-DP debug interface - all verified in Infineon's FM3 Peripheral Manual TYPE9 classification.
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 independent I-code/D-code buses for SRAM0 and system bus for SRAM1, enabling concurrent instruction fetch and data access.
The peripheral architecture integrates eight-channel DMA with 32-bit addressing, quadrature position/revolution counters (QPRC) with configurable AIN/BIN/ZIN edge detection, and multi-function timers supporting PWM, dead-time insertion, and A/D activation triggers - all designed for real-time motor control and sensor fusion in resource-constrained environments.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| CPU Core | Arm Cortex-M3 r2p1, up to 72 MHz - enables deterministic real-time task execution with low-latency interrupt response. |
| Flash Memory | 256 KB dual-bank (240 KB upper + 16 KB lower), 0-wait-state read - allows background write/erase while executing code from alternate bank. |
| SRAM | 32 KB total (16 KB SRAM0 on I/D bus + 16 KB SRAM1 on system bus) - supports parallel instruction/data access and peripheral buffering. |
| ADC | Two 12-bit successive-approximation units, 26 channels, 0.8 µs conversion @ 5 V - delivers high-speed analog sensing for closed-loop control. |
| DAC | Two 10-bit R-2R DACs - provides precise analog output for calibration signals or actuator biasing. |
| Low-Power Modes | Six modes including Deep Standby RTC/Stop with RAM retention options - extends battery life in always-on sensor nodes. |
| Clock Sources | Five sources: 4–48 MHz main oscillator, 32.768 kHz sub-clock, 4 MHz/100 kHz CR oscillators, Main PLL - ensures robust timing across operating conditions. |
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 5 V-tolerant pins on designated I/Os. |
| XTAL / EXTAL | Main clock oscillator input/output | Drives 4–48 MHz crystal or external clock source for high-precision timing. |
| RTCXTAL / RTCXTAL | Real-time clock oscillator | Connects 32.768 kHz crystal for autonomous timekeeping during low-power modes. |
| SWDIO / SWCLK | Serial Wire Debug interface | Enables non-intrusive debugging and programming via SWJ-DP without dedicated JTAG pins. |
| PA0–PA15, PB0–PB15, etc. | Multi-function GPIO | 65 total high-speed I/Os with port relocate function - permits flexible PCB layout and peripheral remapping. |
Key Features
| Feature | Design Value |
|---|---|
| Dual-bank Flash memory | Enables Over-The-Air (OTA) firmware updates without halting application execution. |
| LIN 2.1 protocol engine | Hardware-accelerated LIN master/slave operation with programmable break field (13–16 bit) and delimiter (1–4 bit). |
| CRC accelerator | Offloads CCITT CRC16 and IEEE-802.3 CRC32 computation, reducing CPU load by >90% for communication integrity checks. |
| Quadrature Position Counter (QPRC) | Configurable edge detection on AIN/BIN/ZIN inputs with 16-bit position/revolution counters for precise encoder interfacing. |
| Hardware watchdog pair | Dedicated "Hardware" (CR-oscillator clocked) and "Software" watchdogs - ensures fail-safe reset across all power modes except Deep Standby Stop/RTC. |
Applications
| Industrial Motor Control | Automotive Body Electronics |
|---|---|
Use Scenario: Brushless DC (BLDC) motor commutation with current sensing and thermal monitoring. IC Role / Device Role / Timing Role: Real-time PWM generation, ADC-triggered current sampling, and QPRC-based rotor position tracking. Use Value: Integrated multi-function timers with dead-time insertion and A/D activation compare eliminate external timing ICs and reduce BOM count. | Use Scenario: Door module controlling window lift, mirror adjustment, and seat position memory. IC Role / Device Role / Timing Role: LIN 2.1 slave node managing actuator commands and status reporting over single-wire bus. Use Value: Hardware LIN engine with configurable break fields ensures interoperability with legacy and next-gen automotive ECUs. |
| Smart Energy Metering | Factory Automation Sensor Node |
Use Scenario: Polyphase electricity meter with voltage/current measurement, tamper detection, and RTC-stamped event logging. IC Role / Device Role / Timing Role: High-accuracy 12-bit ADC sampling synchronized to line frequency, RTC with leap-year calendar. Use Value: Dual-bank Flash enables secure firmware updates while maintaining continuous metering operation. | Use Scenario: Wireless vibration sensor node with local FFT preprocessing before RF transmission. IC Role / Device Role / Timing Role: Low-power Sleep/Timer mode cycling with wake-up on external interrupt or periodic ADC scan. Use Value: Six-tier power management and 100 kHz CR oscillator enable sub-µA standby current for multi-year battery life. |
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 hardware engine and QPRC. | Requires software LIN stack and external position counter logic; less suitable for automotive body modules. | Preferred where cost sensitivity outweighs need for hardware LIN or OTA update capability. |
| RA4M1 (R7FA4M1AB3CFM) | Arm Cortex-M4F core, 256 KB Flash, 32 KB SRAM, but no built-in LIN or QPRC peripherals. | Relies on software emulation for LIN and external encoder ICs; higher CPU overhead in motor control loops. | Chosen when floating-point math or advanced security features (TRNG, AES) are prioritized over LIN/QPRC integration. |
Compared with STM32F103VCT6 and RA4M1, CY9BF121MPMC-GNE2 uniquely combines dual-bank Flash for seamless firmware updates, hardware LIN 2.1, and QPRC - delivering lower system-level complexity and deterministic timing for automotive and industrial motion control.
Availability
CY9BF121MPMC-GNE2 is available at Aetrix Electronics and suitable for industrial motor control, automotive body electronics, smart energy metering, and factory automation sensor nodes requiring stable component supply and long-term lifecycle support.
Supply support for CY9BF121MPMC-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 AG is a German semiconductor manufacturer specializing in power management, automotive, and industrial MCUs, with global manufacturing and quality certification to ISO/TS 16949 and ISO 9001.
The CY9BF121MPMC-GNE2 belongs to the FM3 family of 32-bit microcontrollers, designed specifically for cost-sensitive, low-power embedded controllers in motor drives, building automation, and automotive sub-systems.
FAQ
What is the maximum operating frequency and supported clock sources?
The CY9BF121MPMC-GNE2 operates at up to 72 MHz using its Arm Cortex-M3 core. Clock sources include a 4–48 MHz main oscillator, 32.768 kHz sub-clock for RTC, built-in 4 MHz and 100 kHz CR oscillators, and a programmable Main PLL. The PLL can accept either the main oscillator or the high-speed CR clock as input, enabling flexible frequency synthesis across temperature and voltage ranges.
Does this MCU support hardware-based LIN communication?
Yes - it integrates a dedicated LIN 2.1 protocol engine supporting both master and slave modes. Key capabilities include programmable break field length (13–16 bits), break delimiter (1–4 bits), automatic checksum generation, and error detection for parity, framing, and overrun conditions - all implemented in hardware without CPU intervention.
How does the dual-bank Flash architecture benefit firmware updates?
Dual-bank Flash allows simultaneous execution from one bank while erasing or programming the other. This enables safe Over-The-Air (OTA) updates: new firmware is written to the inactive bank, validated, and then switched at reset - eliminating downtime and preventing bricking during field updates.
What debug interface is provided and what are its advantages?
The device uses Serial Wire JTAG Debug Port (SWJ-DP), combining SWD and JTAG into a single 2-pin (SWDIO/SWCLK) or 5-pin interface. This reduces PCB footprint versus full JTAG, supports non-intrusive real-time debugging, flash programming, and boundary-scan testing - all compliant with ARM CoreSight standards.
CY9BF121MPMC-GNE2 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Infineon Technologies
- Package/Case:
- 80-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:
- 60
- 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 26x12b SAR; D/A 2x10b
- Oscillator Type:
- External, Internal
- Operating Temperature:
- -40°C ~ 105°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
CY9BF121MPMC-GNE2 FAQ
1.How can I place an order for CY9BF121MPMC-GNE2 through Aetrix?
Please submit a Request for Quotation (RFQ) for CY9BF121MPMC-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 CY9BF121MPMC-GNE2 reliable?
The price and inventory of CY9BF121MPMC-GNE2 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for CY9BF121MPMC-GNE2 is usually 5 days.
3.What payment methods are accepted for CY9BF121MPMC-GNE2?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for CY9BF121MPMC-GNE2 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for CY9BF121MPMC-GNE2?
CY9BF121MPMC-GNE2 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your CY9BF121MPMC-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 CY9BF121MPMC-GNE2?
For technical support, including CY9BF121MPMC-GNE2 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your CY9BF121MPMC-GNE2 requirements.
6.How does Aetrix verify that CY9BF121MPMC-GNE2 is sourced from the original manufacturer or authorized distributors?
All CY9BF121MPMC-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 CY9BF121MPMC-GNE2 meets industry standards.
7.What is the process for return or replacement of CY9BF121MPMC-GNE2?
All CY9BF121MPMC-GNE2 units undergo pre-shipment inspection (PSI). If there is an issue with CY9BF121MPMC-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 CY9BF121MPMC-GNE2 part is unused and in its original packaging.
Return procedure for CY9BF121MPMC-GNE2:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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