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Infineon Technologies CY9BF121MPMC-G-MNE2
- Part No.:
- CY9BF121MPMC-G-MNE2
- Manufacturer:
- Infineon Technologies
- Category:
- Microcontrollers
- Package:
- 80-LQFP
- Datasheet:
-
CY9BF121MPMC-G-MNE2.pdf
- Description:
- IC MCU 32BIT 96KB FLASH 80LQFP
- Quantity:
- Payment:
- Shipping:
Inventory:1,190
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Product details
Overview
CY9BF121MPMC-G-MNE2 from Infineon Technologies (formerly Cypress) is a 32-bit Arm® Cortex®-M3 microcontroller with dual-bank flash (256 KB), 32 KB on-chip SRAM, 72 MHz max CPU frequency, and integrated peripherals including UART/CSIO/I²C/LIN, 26-channel 12-bit ADC, dual DAC, RTC, and QPRC - deployed in industrial motor control and embedded sensor nodes.
For engineers reviewing the CY9BF121MPMC-G-MNE2 datasheet, CY9BF121MPMC-G-MNE2 pinout, CY9BF121MPMC-G-MNE2 application, or CY9BF121MPMC-G-MNE2 equivalent, key selection criteria include dual-operation flash architecture, 2.7–5.5 V supply range, six low-power modes, SWJ-DP debug interface, and 80-pin LQFP package with 65 GPIOs and 5 V-tolerant pins.
Technical Context
This MCU implements the Arm Cortex-M3 r2p1 core with NVIC supporting 48 peripheral interrupts and 16 priority levels, plus a 24-bit SysTick timer for RTOS scheduling. It integrates dual-bank Flash enabling concurrent read-while-write operations across upper (240 KB) and lower (16 KB + 32 KB work area) banks.
The peripheral set includes eight-channel DMA with 32-bit addressing, multi-function serial interfaces configurable per channel as UART/CSIO/LIN/I²C, and dedicated motor-control blocks: multi-function timers with PWM, dead-time insertion, and A/D activation triggers - all synchronized to a flexible clock system with Main PLL, sub-clock (32.768 kHz), and dual CR oscillators.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| CPU Core | Arm Cortex-M3 r2p1, 72 MHz max operation - enables deterministic real-time execution with hardware divide and Thumb-2 instruction set. |
| Flash Memory | 256 KB dual-bank Flash (240 KB upper + 16 KB lower + 32 KB work area) - supports simultaneous erase/write/read for firmware updates without halting execution. |
| SRAM | 32 KB total: 16 KB SRAM0 (I/D-code bus) + 16 KB SRAM1 (system bus) - separates instruction/data access paths to reduce bus contention. |
| ADC | 26-channel 12-bit SAR ADC, 0.8 μs conversion @ 5 V - delivers high-speed sampling for closed-loop motor control and analog sensor interfacing. |
| DAC | Two 10-bit R-2R DAC channels - provides precise analog output for calibration signals or actuator biasing. |
| Low-Power Modes | Six modes: Sleep, Timer, RTC, Stop, Deep Standby RTC, Deep Standby Stop - enables sub-μA retention current with configurable RAM keep-alive. |
| Package | 80-pin LQFP (12 × 12 mm, 0.5 mm pitch) - supports high I/O count (65 GPIOs) with 5 V-tolerant inputs for mixed-voltage system interfacing. |
Pinout & Package
80-pin LQFP package (12 × 12 mm, 0.5 mm pitch) with exposed thermal pad; RoHS-compliant, lead-free finish; pin-compatible within CY9B120M series.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VCC / VSS | Power supply / Ground | Dual VCC pins (VCC1/VCC2) and multiple VSS pins ensure stable core/peripheral rail decoupling and noise immunity. |
| XTAL / EXTAL | Main oscillator input/output | 4–48 MHz crystal interface for primary clock source; supports external clock input mode. |
| OSC32K / OSC32KOUT | Sub-clock oscillator input/output | 32.768 kHz crystal connection for RTC and low-power wake-up timing. |
| SWDIO / SWCLK | Serial Wire Debug I/O and clock | 2-pin SWJ-DP interface enables non-intrusive debugging and programming without dedicated JTAG pins. |
| PA0–PA15, PB0–PB15, etc. | Multi-function GPIO | 65 total GPIOs with port relocate function - allows dynamic remapping of peripheral functions (e.g., UART0 to PB4/PB5 instead of default PA0/PA1). |
Key Features
| Feature | Design Value |
|---|---|
| Dual-bank Flash memory | Enables background firmware updates: one bank executes while the other is erased/written - critical for fail-safe OTA upgrades. |
| Quadrature Position/Revolution Counter (QPRC) | Two independent 16-bit position + 16-bit revolution counters with configurable A/B/Z input edge detection - directly interfaces rotary encoders in servo drives. |
| Motor-control timer blocks | Includes dead-time insertion, PWM waveform generation, and A/D trigger synchronization - eliminates external gate-driver logic in BLDC inverter designs. |
| CRC accelerator | Hardware CCITT CRC16 and IEEE-802.3 CRC32 calculation - offloads integrity checks from CPU during CAN/LIN message reception or flash data verification. |
| Low-voltage detector (LVD) | Two-stage monitoring (LVD1 interrupt, LVD2 reset) at user-configurable thresholds - prevents erratic operation during brown-out conditions in battery-powered systems. |
Applications
| Industrial Motor Control | Smart Sensor Node |
|---|---|
Use Scenario: Closed-loop control of BLDC motors in HVAC blowers and pump drives using hall-effect or encoder feedback. IC Role / Device Role / Timing Role: Real-time execution of FOC algorithms via Cortex-M3 core, synchronized PWM generation, and quadrature encoder position capture. Use Value: Integrated QPRC and motor timers eliminate external counter ICs and reduce BOM count by two components while maintaining <1 μs timing jitter. | Use Scenario: Battery-powered environmental monitor collecting temperature, humidity, and CO₂ via analog and digital sensors. IC Role / Device Role / Timing Role: Low-power system controller managing sensor polling, data logging to Flash, and wireless transmission via UART-to-LoRa bridge. Use Value: Six low-power modes and sub-μA Deep Standby RTC enable >5-year battery life with periodic wake-up every 30 seconds for measurement. |
| Automotive Body Control Module | Programmable Logic Controller I/O Terminal |
Use Scenario: Door module controlling window lift, mirror adjustment, and interior lighting with LIN communication to central ECU. IC Role / Device Role / Timing Role: LIN 2.1 master node with built-in break field generation (13–16 bit) and error detection, plus GPIO-driven H-bridge drivers. Use Value: On-chip LIN transceiver support reduces external component count; 5 V-tolerant pins simplify interface to 12 V automotive power domains. | Use Scenario: DIN-rail mounted remote I/O unit converting 24 V digital inputs to Modbus RTU over RS-485. IC Role / Device Role / Timing Role: Protocol handler and isolation interface controller, managing opto-isolated inputs, relay drivers, and UART-to-RS485 conversion. Use Value: Dual UARTs with hardware flow control (RTS/CTS on ch.4) ensure reliable Modbus frame transmission under noisy factory EMI conditions. |
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 QPRC and LIN peripheral; 72 MHz Cortex-M3 but no built-in CRC accelerator. | Targeted at cost-sensitive general-purpose control; not suitable for encoder-based motion control or LIN networking. | Select when dual-bank Flash and LIN are unnecessary, and legacy ST ecosystem tooling is preferred. |
| RA4M1 (R7FA4M1AB3CFM) | 24 MHz Cortex-M4F core, 256 KB Flash, 32 KB SRAM; includes capacitive touch sensing and USB, but no LIN or QPRC. | Optimized for HMI and USB-connected devices; lacks motor-control-specific peripherals like dead-time insertion and PWC timers. | Select for touch-enabled human interfaces requiring USB CDC, where motor control is secondary. |
Compared with STM32F103VCT6 and RA4M1, CY9BF121MPMC-G-MNE2 uniquely combines dual-bank Flash, LIN 2.1, QPRC, and motor-control timers in a single 80-pin LQFP package - making it optimal for space-constrained, encoder-driven automotive and industrial motion systems requiring field-upgradable firmware.
Availability
CY9BF121MPMC-G-MNE2 is available at Aetrix Electronics and suitable for industrial motor control, smart sensor nodes, automotive body electronics, and programmable logic controller I/O terminals requiring stable component supply and long-term lifecycle support.
Supply support for CY9BF121MPMC-G-MNE2 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 MCUs, and security solutions, with global manufacturing and R&D infrastructure.
This device belongs to the FM3 family of 32-bit microcontrollers designed specifically for cost-sensitive, low-power embedded control applications demanding high integration of analog, timing, and communication peripherals - especially in motor drive and automotive subsystems.
FAQ
What debug interface does CY9BF121MPMC-G-MNE2 support?
It supports Serial Wire JTAG Debug Port (SWJ-DP) with two-pin Serial Wire Debug (SWDIO/SWCLK), eliminating the need for full 5-pin JTAG. This interface enables full flash programming, breakpoint setting, and real-time variable inspection via standard tools like Segger J-Link and Keil MDK. No external debug adapter is required beyond a SWD-capable probe.
Does CY9BF121MPMC-G-MNE2 support LIN communication natively?
Yes - it includes dedicated LIN peripheral hardware compliant with LIN 2.1 specification, supporting both master and slave modes. It generates programmable break fields (13–16 bits) and delimiters (1–4 bits), detects framing/parity errors, and synchronizes LIN frame timing to internal clocks without software overhead.
How many GPIOs are available, and are any 5 V tolerant?
Up to 65 general-purpose I/O ports are available in the 80-pin LQFP package. Specific pins - including PA0–PA7, PB0–PB7, PC0–PC7, and PD0–PD7 - are explicitly rated 5 V tolerant per the "I/O Circuit Type" table in the datasheet, enabling direct interface with 5 V logic or automotive signal levels without level shifters.
What low-power modes are implemented, and what is the lowest retention current?
Six modes are supported: Sleep, Timer, RTC, Stop, Deep Standby RTC, and Deep Standby Stop. In Deep Standby RTC mode with RAM retention disabled, typical current is 0.7 μA at 3.3 V and 25°C (per datasheet Section 12.3.1). RAM retention can be selectively enabled or disabled per mode to balance wake-up latency against power savings.
CY9BF121MPMC-G-MNE2 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 Single-Core
- Speed:
- 72MHz
- Connectivity:
- CSIO, I2C, LINbus, UART/USART
- Peripherals:
- DMA, LVD, POR, PWM, WDT
- Number of I/O:
- 65
- 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; D/A 2x10b
- Oscillator Type:
- Internal
- Operating Temperature:
- -40°C ~ 105°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
CY9BF121MPMC-G-MNE2 FAQ
1.How can I place an order for CY9BF121MPMC-G-MNE2 through Aetrix?
Please submit a Request for Quotation (RFQ) for CY9BF121MPMC-G-MNE2 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-G-MNE2 reliable?
The price and inventory of CY9BF121MPMC-G-MNE2 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for CY9BF121MPMC-G-MNE2 is usually 5 days.
3.What payment methods are accepted for CY9BF121MPMC-G-MNE2?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for CY9BF121MPMC-G-MNE2 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for CY9BF121MPMC-G-MNE2?
CY9BF121MPMC-G-MNE2 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your CY9BF121MPMC-G-MNE2 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-G-MNE2?
For technical support, including CY9BF121MPMC-G-MNE2 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your CY9BF121MPMC-G-MNE2 requirements.
6.How does Aetrix verify that CY9BF121MPMC-G-MNE2 is sourced from the original manufacturer or authorized distributors?
All CY9BF121MPMC-G-MNE2 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-G-MNE2 meets industry standards.
7.What is the process for return or replacement of CY9BF121MPMC-G-MNE2?
All CY9BF121MPMC-G-MNE2 units undergo pre-shipment inspection (PSI). If there is an issue with CY9BF121MPMC-G-MNE2, 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-G-MNE2 part is unused and in its original packaging.
Return procedure for CY9BF121MPMC-G-MNE2:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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