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Infineon Technologies CY9AF421KPMC-G-JNE2
- Part No.:
- CY9AF421KPMC-G-JNE2
- Manufacturer:
- Infineon Technologies
- Category:
- Microcontrollers
- Package:
- 48-LQFP
- Datasheet:
-
CY9AF421KPMC-G-JNE2.pdf
- Description:
- IC MCU 32BIT 64KB FLASH 48LQFP
- Quantity:
- Payment:
- Shipping:
Inventory:3,576
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Product details
Overview
CY9AF421KPMC-G-JNE2 from Infineon Technologies (formerly Cypress) is a 32-bit ARM® Cortex®-M3 microcontroller with 64 KB on-chip Flash, 4 KB SRAM, integrated CAN 2.0B interface (1 Mbps), 12-bit ADC (0.8 μs conversion), and 10-bit DAC. It operates at up to 40 MHz, supports four low-power modes (Sleep/Timer/RTC/Stop), and targets embedded motor control and industrial automation systems requiring real-time I/O and deterministic communication.
For engineers reviewing the CY9AF421KPMC-G-JNE2 datasheet, CY9AF421KPMC-G-JNE2 pinout, CY9AF421KPMC-G-JNE2 application, or CY9AF421KPMC-G-JNE2 equivalent, key selection criteria include its single-channel CAN transceiver support, 51 GPIOs in 64-pin LQFP package, dual watchdog timers (HW/SW), RTC with leap-year handling, and 2.7–5.5 V wide-voltage operation for ruggedized industrial deployment.
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 OS task scheduling. Its clock system integrates five sources - including 4–48 MHz main oscillator, 32.768 kHz sub-clock, and dual CR oscillators - supervised by Clock Super Visor (CSV) for fail-safe external clock monitoring.
The peripheral set includes eight base timers (PWM/PPG/reload/PWC), three multi-function timers with input capture/output compare/waveform generation, and a dedicated IGBT-mode block with dead-time insertion and DTIF emergency stop interrupt - all optimized for closed-loop motor drive timing precision and fault response.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| CPU Core | ARM Cortex-M3 r2p1, 40 MHz max - enables deterministic real-time execution with hardware divide and Thumb-2 instruction set. |
| Flash Memory | 64 KB, 0-wait-state read - supports fast code execution without cache, with security lock for firmware protection. |
| SRAM | 4 KB on-chip, system-bus-connected - provides low-latency data storage for critical variables and stack operations. |
| CAN Interface | 1 channel, CAN 2.0A/B compliant, 1 Mbps - handles industrial fieldbus messaging with 32-message buffer and error detection. |
| ADC | 12-bit SAR, 0.8 μs @ 5 V, 8-channel - delivers high-speed analog sensing for motor current/voltage feedback loops. |
| DAC | 10-bit R-2R, 1 channel - generates precise analog reference or control signals for actuator biasing or calibration. |
| Power Supply | 2.7–5.5 V - ensures compatibility with both 3.3 V and 5 V industrial logic domains and legacy sensor interfaces. |
Pinout & Package
The CY9AF421KPMC-G-JNE2 is housed in a 64-pin LQFP (10 mm × 10 mm, 0.5 mm pitch) package with exposed thermal pad. Pin functions are fully relocatable via port relocation register, enabling flexible PCB layout for signal routing and EMI mitigation.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VCC / VSS | Power supply / Ground | Dual VCC/VSS pairs ensure stable core and I/O domain decoupling; supports independent 3.3 V or 5 V operation. |
| XTAL / EXTAL | Main clock oscillator input/output | Accepts 4–48 MHz crystal or external clock source; feeds PLL for system clock generation. |
| RTCXTAL / RTCXTAL | Real-time clock oscillator | Connects to 32.768 kHz tuning-fork crystal for autonomous timekeeping during Stop mode. |
| CAN_TX / CAN_RX | CAN bus differential driver/receiver | Direct connection to external CAN transceiver; supports dominant/recessive bit timing per ISO 11898-1. |
| AD0–AD7 | Analog input channels | Eight dedicated pins for 12-bit ADC sampling; configurable as digital I/O when unused. |
| DA0 | Digital-to-analog output | Single 10-bit R-2R DAC output for analog waveform generation or reference voltage setting. |
Key Features
| Feature | Design Value |
|---|---|
| IGBT Control Mode | Integrated dead-time insertion, PWM output, DC chopper waveform generation, and DTIF emergency stop interrupt - enables safe, compact inverter gate driving without external logic. |
| Port Relocation | Per-peripheral function assignment to any compatible GPIO pin - eliminates fixed pin conflicts and simplifies board layout reuse across variants. |
| Dual Watchdog Timers | Hardware watchdog (CR-oscillator-clocked) remains active in Sleep/Timer/RTC modes; software watchdog offers flexible timeout configuration - ensures fail-safe recovery across all low-power states. |
| RTC with Leap-Year Logic | Full BCD calendar (Year/Month/Day/Hour/Minute/Second/Weekday) with automatic leap-year correction and date/time-match interrupt - eliminates host CPU overhead for timekeeping in energy-constrained nodes. |
| Low-Voltage Detection | Two-stage LVD (LVD1 interrupt, LVD2 reset) with programmable thresholds - prevents erratic operation during brown-out while allowing graceful shutdown or state save. |
Applications
| Industrial Motor Drive | Automotive Body Control Module |
|---|---|
Use Scenario: Closed-loop control of BLDC or PMSM motors in HVAC blowers, pumps, and compressors. IC Role / Device Role / Timing Role: Real-time execution of FOC algorithms, PWM generation with dead-time control, and current sensing via 12-bit ADC. Use Value: Integrated IGBT mode and DTIF interrupt enable <1 μs fault response, reducing risk of MOSFET shoot-through during overcurrent events. | Use Scenario: Centralized control of door locks, window lifts, lighting, and seat position memory in 12 V vehicle platforms. IC Role / Device Role / Timing Role: CAN 2.0B node managing LIN sub-nodes (mirrors, switches), with RTC-backed event logging and low-power wake-on-LIN. Use Value: Dual watchdogs and CSV supervision ensure reliable operation despite battery voltage fluctuations and EMI in automotive environments. |
| Smart Energy Metering | Programmable Logic Controller (PLC) I/O Module |
Use Scenario: Residential/utility meter with tamper detection, load profiling, and HAN communication via UART/I²C. IC Role / Device Role / Timing Role: High-accuracy analog front-end controller using 12-bit ADC for voltage/current sampling and 10-bit DAC for calibration reference. Use Value: 0.8 μs ADC conversion time and scanning FIFO allow synchronized multi-channel sampling at >10 kSPS for harmonic analysis compliance. | Use Scenario: DIN-rail mounted digital I/O expansion module with isolated inputs/outputs and Modbus RTU over RS-485. IC Role / Device Role / Timing Role: Protocol handler and GPIO manager interfacing with external isolators and UART-to-RS485 transceivers. Use Value: 51 GPIOs with pull-up control and direct pin-level read capability simplify discrete I/O conditioning and status monitoring without external buffers. |
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 CAN FD, 12-bit ADC @ 1 μs, no built-in RTC crystal oscillator pins | Lacks dedicated RTC XTAL pins and CSV supervision; requires external 32.768 kHz oscillator circuit | Choose if higher SRAM headroom is needed and CAN FD not required; verify external RTC design effort. |
| RP2040 | Dual-core ARM Cortex-M0+, 2 MB Flash, no CAN, no hardware RTC, USB device only | No CAN or LIN support; lacks industrial-grade clock supervision and LVD2 auto-reset | Prefer for cost-sensitive consumer IoT where USB programming and dual-core threading outweigh industrial reliability needs. |
Compared with STM32F103C8T6 and RP2040, the CY9AF421KPMC-G-JNE2 uniquely combines CAN 2.0B, CSV clock monitoring, and RTC XTAL pins in a single 64-pin LQFP - delivering verified robustness for field-deployed industrial controllers without external supervision components.
Availability
CY9AF421KPMC-G-JNE2 is available at Aetrix Electronics and suitable for industrial motor drive, automotive body control, smart energy metering, and PLC I/O module applications requiring stable component supply, long-term lifecycle support, and qualified automotive-grade traceability.
Supply support for CY9AF421KPMC-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 AG is a German semiconductor manufacturer specializing in power management, automotive MCUs, and industrial control ICs, with global manufacturing and quality certification to IATF 16949 and ISO 9001.
The CY9AF421KPMC-G-JNE2 belongs to the FM3 family of 32-bit microcontrollers designed specifically for cost-sensitive, real-time embedded control in motor drives, building automation, and industrial sensors - emphasizing low-power operation, functional safety readiness, and peripheral integration.
FAQ
Does CY9AF421KPMC-G-JNE2 support CAN FD?
No. This device implements CAN 2.0A/B protocol only, with maximum bit rate of 1 Mbps and 32-message buffer. CAN FD features such as flexible data-rate and extended payload are not supported. For CAN FD requirements, consider Infineon's newer TRAVEO™ T2G or AURIX™ families.
What is the maximum operating temperature range for this MCU?
The CY9AF421KPMC-G-JNE2 is rated for industrial temperature range: –40 °C to +85 °C ambient. It meets JEDEC JESD22-A108 qualification for storage and operating life under these conditions, with derating applied above 70 °C for sustained 40 MHz operation.
Is the unique 41-bit ID accessible via standard debug interface?
Yes. The factory-programmed 41-bit unique ID is readable via SWD (Serial Wire Debug) using standard CMSIS-DAP or J-Link commands, mapped to address 0x000001FC in the system control space. No special unlock sequence is required.
Can the 10-bit DAC output drive a 1 kΩ load directly?
No. The DAC output has limited drive strength (±1 mA typical). Driving a 1 kΩ load causes >1 LSB nonlinearity due to voltage drop. A rail-to-rail op-amp buffer is required for accurate 10-bit linearity into loads ≤10 kΩ.
CY9AF421KPMC-G-JNE2 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Infineon Technologies
- Package/Case:
- 48-LQFP
- Series:
- FM3 MB9A420L
- Packaging:
- Tray
- Product Status:
- Obsolete
- Programmable:
- Not Verified
- Core Processor:
- ARM® Cortex®-M3
- Core Size:
- 32-Bit Single-Core
- Speed:
- 40MHz
- Connectivity:
- CSIO, EBI/EMI, I2C, LINbus, UART/USART, USB
- Peripherals:
- LVD, POR, WDT
- Number of I/O:
- 36
- Program Memory Size:
- 64KB (64K x 8)
- Program Memory Type:
- FLASH
- EEPROM Size:
- -
- RAM Size:
- 8K 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:
CY9AF421KPMC-G-JNE2 FAQ
1.How can I place an order for CY9AF421KPMC-G-JNE2 through Aetrix?
Please submit a Request for Quotation (RFQ) for CY9AF421KPMC-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 CY9AF421KPMC-G-JNE2 reliable?
The price and inventory of CY9AF421KPMC-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 CY9AF421KPMC-G-JNE2 is usually 5 days.
3.What payment methods are accepted for CY9AF421KPMC-G-JNE2?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for CY9AF421KPMC-G-JNE2 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for CY9AF421KPMC-G-JNE2?
CY9AF421KPMC-G-JNE2 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your CY9AF421KPMC-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 CY9AF421KPMC-G-JNE2?
For technical support, including CY9AF421KPMC-G-JNE2 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your CY9AF421KPMC-G-JNE2 requirements.
6.How does Aetrix verify that CY9AF421KPMC-G-JNE2 is sourced from the original manufacturer or authorized distributors?
All CY9AF421KPMC-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 CY9AF421KPMC-G-JNE2 meets industry standards.
7.What is the process for return or replacement of CY9AF421KPMC-G-JNE2?
All CY9AF421KPMC-G-JNE2 units undergo pre-shipment inspection (PSI). If there is an issue with CY9AF421KPMC-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 CY9AF421KPMC-G-JNE2 part is unused and in its original packaging.
Return procedure for CY9AF421KPMC-G-JNE2:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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