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Infineon Technologies CY9AF121LPMC-G-JNE2
- Part No.:
- CY9AF121LPMC-G-JNE2
- Manufacturer:
- Infineon Technologies
- Category:
- Microcontrollers
- Package:
- 64-LQFP
- Datasheet:
-
CY9AF121LPMC-G-JNE2.pdf
- Description:
- IC MCU 32BIT 64KB FLASH 64LQFP
- Quantity:
- Payment:
- Shipping:
Inventory:2,136
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Product details
Overview
CY9AF121LPMC-G-JNE2 from Infineon Technologies (formerly Cypress) is a 32-bit ARM® Cortex®-M3 microcontroller with 64 KB on-chip Flash, 4 KB SRAM, 40 MHz max CPU frequency, 12-bit ADC (8 channels, 0.8 μs conversion), and integrated LIN/UART/I²C/CSIO interfaces. It targets embedded motor control and industrial sensing systems requiring real-time I/O, low-power operation (Sleep/RTC/Stop modes), and hardware watchdog supervision.
For engineers reviewing the CY9AF121LPMC-G-JNE2 datasheet, CY9AF121LPMC-G-JNE2 pinout, CY9AF121LPMC-G-JNE2 application, or CY9AF121LPMC-G-JNE2 equivalent, key selection criteria include its 64-pin LQFP package, dual watchdog timers (hardware + software), 5V-tolerant GPIOs, RTC with leap-year support, and IGBT-mode PWM timing features for motor drive implementation.
Technical Context
This MCU implements the ARM Cortex-M3 r2p1 core with NVIC supporting 48 peripheral interrupts and 16 priority levels. Its clock system integrates five sources: 4–48 MHz main oscillator, 32.768 kHz sub-clock, 4 MHz and 100 kHz internal CR oscillators, and a configurable Main PLL.
The peripheral set includes eight base timers (PWM/PPG/reload/PWC), three multi-function timers (input capture, output compare, waveform generation), dual 32-/16-bit down counters, and dedicated motor-control blocks: dead-time insertion, DTIF emergency stop interrupt, and A/D activation triggers - all synchronized to PWM cycles.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| CPU Core | ARM Cortex-M3 r2p1, 40 MHz max - deterministic real-time execution with hardware divide and Thumb-2 instruction set. |
| Flash Memory | 64 KB, 0-wait-state read - enables zero-cycle instruction fetch at full speed for deterministic ISR latency. |
| SRAM | 4 KB on-chip, system bus-connected - supports fast stack/data access without external memory wait states. |
| ADC | 12-bit SAR, 8 channels, 0.8 μs @ 5 V - sufficient resolution and speed for closed-loop current/voltage sensing in motor drives. |
| DAC | 10-bit R-2R, 1 channel - provides analog reference or bias voltage generation for sensor conditioning or calibration. |
| Low-Power Modes | Sleep, Timer, RTC, Stop - RTC mode retains timekeeping and wake-up capability while drawing <1.5 μA (typ). |
| Watchdog Timers | Two independent: hardware (CR-oscillator-clocked, active in all low-power modes except Stop) and software - ensures fail-safe recovery under firmware hang or clock fault. |
Pinout & Package
Package: 64-pin LQFP (10 mm × 10 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 rails; supports 2.7–5.5 V operation with internal voltage regulation. |
| XTAL / EXTAL | Main crystal oscillator input/output | Accepts 4–48 MHz external crystal for precise system clock generation and PLL reference. |
| RTCXIN / RTCXOUT | Real-time clock crystal interface | Connects 32.768 kHz tuning-fork crystal for autonomous calendar/timekeeping during Stop mode. |
| PA0–PA15, PB0–PB15, PC0–PC15, PD0–PD7 | General-purpose I/O ports | Up to 51 GPIOs; port relocate function allows flexible peripheral mapping; some pins are 5V tolerant for mixed-voltage interfacing. |
| AD0–AD7 | Analog input channels | Dedicated pins for 12-bit ADC inputs; support scanning and priority conversion with FIFO buffering. |
| DA0 | Analog output | Single 10-bit DAC output pin for programmable reference or analog signal generation. |
| SWDIO / SWCLK | Serial Wire Debug interface | 2-pin JTAG/SWD debug port enabling non-intrusive flash programming and real-time trace debugging. |
Key Features
| Feature | Design Value |
|---|---|
| IGBT-mode PWM timing | Hardware-dead-time insertion, DTIF emergency stop interrupt, and A/D trigger synchronization - eliminates software jitter in motor gate-drive timing. |
| Multi-function serial interface | Four configurable channels supporting UART/CSIO/LIN/I²C on shared pins - reduces BOM count and PCB routing complexity in multi-protocol systems. |
| Real-time clock with calendar | Year/Month/Day/Hour/Minute/Second/Weekday counter with leap-year correction and date/time-match interrupt - enables time-stamped logging without external RTC chip. |
| Port relocate function | Runtime-configurable peripheral pin assignment - decouples hardware layout from firmware peripheral allocation, accelerating board reuse across variants. |
| Low-voltage detection (2-stage) | LVD1 generates interrupt for warning; LVD2 asserts reset below threshold - provides graded response to brown-out conditions without firmware intervention. |
Applications
| Industrial Motor Control | Smart Sensor Node |
|---|---|
Use Scenario: Brushless DC (BLDC) motor commutation with current feedback and thermal monitoring in HVAC blowers. IC Role / Device Role / Timing Role: Real-time PWM generator with dead-time control, ADC-synchronized current sampling, and LIN bus for status reporting. Use Value: Hardware-enforced timing coordination between PWM edges and ADC sampling eliminates phase error in field-oriented control loops. | Use Scenario: Battery-powered environmental sensor hub measuring temperature, humidity, and CO₂ with local data aggregation. IC Role / Device Role / Timing Role: Low-power host controller managing sensor I²C reads, RTC-based wake scheduling, and UART/CSIO telemetry uplink. Use Value: RTC mode draws <1.5 μA while maintaining accurate timekeeping, extending battery life beyond 5 years on a single CR2032 cell. |
| Automotive Body Electronics | Programmable Power Supply Monitor |
Use Scenario: LIN slave node for seat position memory and heater control in automotive seating modules. IC Role / Device Role / Timing Role: LIN protocol engine (Rev. 2.1 compliant) with break-field generation, slave-mode operation, and error detection. Use Value: Integrated LIN transceiver interface and dedicated LIN timer eliminate need for external LIN PHY, reducing component count by one IC. | Use Scenario: Industrial PLC backplane voltage supervisor detecting undervoltage/overvoltage on 24 V DC rails. IC Role / Device Role / Timing Role: Dual-stage LVD with interrupt + reset outputs, coupled with watchdog timers for autonomous fault recovery. Use Value: LVD2 auto-reset ensures system restart after transient brown-out without manual intervention, improving uptime in unattended equipment. |
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 |
|---|---|---|---|
| STM32F103C8T6 | 64 KB Flash, 20 KB SRAM, no integrated LIN; 72 MHz max clock; lacks RTC calendar and dual watchdog. | Requires external LIN transceiver and RTC backup; better suited for cost-sensitive general-purpose control without automotive protocols. | Select when higher CPU throughput is needed and LIN/RTC/calendar features are not required. |
| RA4M1 (R7FA4M1AB3CFM) | 256 KB Flash, 32 KB SRAM, 48 MHz, integrated CAN FD; no LIN; different peripheral register map and toolchain. | Targets CAN-based industrial networks; requires Renesas e2 studio and FSP; lacks 5V-tolerant I/O and sub-μA RTC mode. | Select for CAN FD integration and larger memory footprint; avoid if LIN compliance or ultra-low-power RTC operation is mandatory. |
Compared with STM32F103C8T6 and RA4M1, the CY9AF121LPMC-G-JNE2 uniquely combines LIN 2.1 support, sub-μA RTC operation, 5V-tolerant I/O, and hardware motor-control timing blocks - making it optimal for cost-constrained, protocol-specific embedded motor and body electronics.
Availability
CY9AF121LPMC-G-JNE2 is available at Aetrix Electronics and suitable for industrial motor control, smart sensor nodes, automotive body electronics, and programmable power supply monitors requiring stable component supply and long-term lifecycle support.
Supply support for CY9AF121LPMC-G-JNE2 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 leader 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 ARM Cortex-M3 microcontrollers, designed specifically for cost-optimized, low-power embedded control in motor drives, industrial automation, and automotive body electronics.
FAQ
What is the maximum operating frequency and supported voltage range?
The CY9AF121LPMC-G-JNE2 operates at up to 40 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 logic and legacy 5 V systems without level shifters, and accommodates battery voltage sag in portable applications.
Does this MCU include hardware support for LIN communication?
Yes - it integrates a dedicated LIN controller compliant with LIN Protocol Specification Rev. 2.1, supporting master/slave modes, programmable break field (13–16 bit) and delimiter (1–4 bit), and full-duplex double-buffered operation with built-in error detection for parity, framing, and overrun faults.
How does the RTC function in low-power Stop mode?
In Stop mode, the RTC remains fully operational using the 32.768 kHz sub-clock, retaining calendar time (Year/Month/Day/Hour/Minute/Second/Weekday) and supporting wake-up interrupts based on date/time matches or periodic intervals - all while consuming less than 1.5 μA typical.
What debug interface is supported and what are its key capabilities?
The MCU supports Serial Wire Debug (SWD) via SWDIO and SWCLK pins. It enables non-intrusive flash programming, real-time variable inspection, breakpoint setting, and trace debugging through ARM CoreSight-compatible tools - without requiring a full JTAG chain or additional pins.
CY9AF121LPMC-G-JNE2 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Infineon Technologies
- Package/Case:
- 64-LQFP
- Series:
- FM3 MB9A120L
- Packaging:
- Tray
- Product Status:
- Active
- Programmable:
- Not Verified
- Core Processor:
- ARM® Cortex®-M3
- Core Size:
- 32-Bit Single-Core
- Speed:
- 40MHz
- Connectivity:
- CSIO, I2C, LINbus, SPI, UART/USART
- Peripherals:
- DMA, LVD, POR, PWM, WDT
- Number of I/O:
- 51
- Program Memory Size:
- 64KB (64K x 8)
- Program Memory Type:
- FLASH
- EEPROM Size:
- -
- RAM Size:
- 4K x 8
- Voltage - Supply (Vcc/Vdd):
- 2.7V ~ 5.5V
- Data Converters:
- A/D 8x12b; D/A 1x10b
- Oscillator Type:
- Internal
- Operating Temperature:
- -40°C ~ 105°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
CY9AF121LPMC-G-JNE2 FAQ
1.How can I place an order for CY9AF121LPMC-G-JNE2 through Aetrix?
Please submit a Request for Quotation (RFQ) for CY9AF121LPMC-G-JNE2 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 CY9AF121LPMC-G-JNE2 reliable?
The price and inventory of CY9AF121LPMC-G-JNE2 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for CY9AF121LPMC-G-JNE2 is usually 5 days.
3.What payment methods are accepted for CY9AF121LPMC-G-JNE2?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for CY9AF121LPMC-G-JNE2 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for CY9AF121LPMC-G-JNE2?
CY9AF121LPMC-G-JNE2 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your CY9AF121LPMC-G-JNE2 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 CY9AF121LPMC-G-JNE2?
For technical support, including CY9AF121LPMC-G-JNE2 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your CY9AF121LPMC-G-JNE2 requirements.
6.How does Aetrix verify that CY9AF121LPMC-G-JNE2 is sourced from the original manufacturer or authorized distributors?
All CY9AF121LPMC-G-JNE2 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 CY9AF121LPMC-G-JNE2 meets industry standards.
7.What is the process for return or replacement of CY9AF121LPMC-G-JNE2?
All CY9AF121LPMC-G-JNE2 units undergo pre-shipment inspection (PSI). If there is an issue with CY9AF121LPMC-G-JNE2, 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 CY9AF121LPMC-G-JNE2 part is unused and in its original packaging.
Return procedure for CY9AF121LPMC-G-JNE2:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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