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Infineon Technologies CY9BF429SPMC-GK7E1
- Part No.:
- CY9BF429SPMC-GK7E1
- Manufacturer:
- Infineon Technologies
- Category:
- Microcontrollers
- Package:
- 144-LQFP
- Datasheet:
-
CY9BF429SPMC-GK7E1.pdf
- Description:
- IC MCU 32B 1.5625MB FLSH 144LQFP
- Quantity:
- Payment:
- Shipping:
Inventory:1,520
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Product details
Overview
CY9BF429SPMC-GK7E1 from Infineon Technologies (formerly Cypress) is a 32-bit Arm® Cortex®-M3 microcontroller with dual-bank flash (1008 KB + 512 KB), 192 KB SRAM, CAN 2.0B interface, and 176-pin LQFP package. It operates up to 60 MHz, supports 2.7–5.5 V supply, and integrates ADC (24-channel, 12-bit, 1.0 µs), DAC (2-channel, 10-bit), and multiple serial interfaces including UART, I²C, LIN, and CSIO. It targets embedded motor control and industrial automation systems requiring real-time responsiveness and low-power operation.
For engineers reviewing the CY9BF429SPMC-GK7E1 datasheet, CY9BF429SPMC-GK7E1 pinout, CY9BF429SPMC-GK7E1 application, or CY9BF429SPMC-GK7E1 equivalent, key selection criteria include its dual-bank Flash architecture for safe firmware updates, hardware watchdog independence from main clock, integrated QPRC for encoder-based position sensing, and support for six low-power modes including Deep Standby RTC with RAM retention.
Technical Context
The CY9BF429SPMC-GK7E1 implements an Arm Cortex-M3 r2p1 core with NVIC supporting 48 peripheral interrupts and 16 priority levels, plus a 24-bit SysTick timer. Its memory subsystem includes two independent SRAM banks (SRAM0: 96 KB on I/D bus; SRAM1: 96 KB on system bus) and dual-operation Flash enabling read-while-write capability.
Peripheral integration includes a 32-message CAN controller (1 Mbps), 16-channel multi-function serial interface configurable per channel as UART/CSIO/LIN/I²C, 8-channel DMA with 32-bit addressing, and dedicated motor-control blocks: base timers with PWM/PPG/PWC modes, quadrature position/revolution counters (2 channels), and DTIF emergency stop interrupt functionality.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| CPU Core | Arm Cortex-M3 r2p1, up to 60 MHz - enables deterministic real-time execution with Thumb-2 instruction set and low-latency interrupt handling. |
| Flash Memory | 1008 KB ROM0 + 512 KB ROM1 + 16 KB ROM0 lower bank - supports dual-bank operation for seamless firmware updates without halting execution. |
| SRAM | 96 KB SRAM0 (I/D bus) + 96 KB SRAM1 (system bus) - allows concurrent CPU and DMA access to separate memory spaces, reducing bus contention. |
| CAN Interface | CAN 2.0A/B compliant, 1 Mbps max bit rate, 32 message buffers - provides robust automotive-grade communication with hardware message filtering and FIFO management. |
| A/D Converter | 24-channel, 12-bit SAR ADC, 1.0 µs conversion time @ 2.7–5.5 V - delivers high-speed analog acquisition suitable for closed-loop motor control feedback. |
| Low-Power Modes | SLEEP, TIMER, RTC, STOP, Deep Standby RTC, Deep Standby STOP - enables sub-µA wake-up from RTC alarm or external interrupt while retaining RAM state selectively. |
| Package | 176-pin LQFP (24 × 24 mm, 0.5 mm pitch) - provides high I/O count (up to 154 GPIO) with 5V-tolerant pins on selected signals for mixed-voltage system interfacing. |
Pinout & Package
Package: 176-pin LQFP (24 × 24 mm, 0.5 mm pitch), RoHS-compliant, moisture sensitivity level 3. Pin functions include dedicated CAN_TX/CAN_RX, QPRC_AIN/QPRC_BIN/QPRC_ZIN, HDMI-CEC, and relocatable peripheral mapping via port relocation register.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| P00–P07 | General-purpose I/O / CAN0_RX | Configurable as GPIO or primary CAN receive signal; supports pull-up and direct level read. |
| P08–P15 | General-purpose I/O / CAN0_TX | Configurable as GPIO or primary CAN transmit signal; 5V-tolerant when used as input. |
| P16–P17 | QPRC_AIN / QPRC_BIN | Dedicated quadrature encoder inputs with programmable edge detection for position/speed measurement. |
| P20–P21 | HDMI_CEC_IN / HDMI_CEC_OUT | Hardware-accelerated CEC protocol handling with automatic START/EOM/ACK generation and line error detection. |
| P30–P31 | RTC_XIN / RTC_XOUT | Connects to 32.768 kHz crystal for autonomous real-time clock operation during STOP and Deep Standby modes. |
| INITX | Reset Input | Active-low external reset pin with Schmitt trigger; initiates power-on or software-triggered reset sequence. |
Key Features
| Feature | Design Value |
|---|---|
| Dual-bank Flash memory | Enables over-the-air (OTA) firmware updates with zero downtime by executing from one bank while programming the other. |
| Quadrature Position/Revolution Counter (QPRC) | Two independent 16-bit position + 16-bit revolution counters with A/B/Z input edge configuration - eliminates need for external encoder interface IC in motor drives. |
| Hardware CRC accelerator | Offloads CCITT CRC16 and IEEE-802.3 CRC32 computation from CPU, reducing data integrity check latency in communication stacks. |
| Port relocation function | Allows dynamic assignment of peripheral functions (e.g., UART, I²C) to alternate GPIO pins - increases PCB layout flexibility and simplifies pin conflict resolution. |
| Dual watchdog timers | Independent hardware (CR oscillator-clocked) and software watchdogs - ensures fail-safe reset even during main clock failure or deep sleep modes. |
Applications
| Industrial Motor Control | Automotive Body Electronics |
|---|---|
Use Scenario: Closed-loop control of BLDC/PMSM motors in HVAC blowers or pump drives using encoder feedback and PWM output. IC Role / Device Role / Timing Role: Real-time execution of FOC algorithms, QPRC-based position capture, and synchronized 16-bit PWM generation with dead-time insertion. Use Value: Eliminates external position interface and reduces BOM count by integrating motor control peripherals with deterministic timing. | Use Scenario: Central body controller managing door locks, window lifts, and lighting via CAN FD-compatible network (using CAN 2.0B at 1 Mbps). IC Role / Device Role / Timing Role: CAN node with 32-message buffer, hardware message filtering, and low-power wake-on-CAN capability. Use Value: Meets automotive ASAM requirements for message latency and bus arbitration robustness without external CAN transceiver logic. |
| Smart Energy Meters | Factory Automation I/O Modules |
Use Scenario: Metering unit with pulse counting, tamper detection, and secure firmware update over isolated RS-485 link. IC Role / Device Role / Timing Role: Dual-bank Flash for secure OTA updates, LVD2-triggered reset on brown-out, and CRC32 acceleration for firmware image verification. Use Value: Ensures regulatory compliance for firmware integrity and prevents unauthorized code execution during power instability. | Use Scenario: Distributed digital I/O module with 16-channel opto-isolated inputs and relay outputs controlled via EtherCAT slave interface. IC Role / Device Role / Timing Role: High-speed GPIO (154 pins), external bus interface for parallel I/O expansion, and multi-channel DMA for burst data transfer to Ethernet MAC. Use Value: Enables deterministic I/O scan cycle times under 1 ms while offloading data movement from CPU via dedicated DMA bus. |
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 |
|---|---|---|---|
| STM32F103ZET6 | Single-bank Flash (512 KB), no QPRC, no HDMI-CEC, 12-bit ADC (1 µs), 72 MHz max | Lacks encoder-specific hardware; requires external logic for quadrature decoding and CEC protocol handling | Select when cost sensitivity outweighs need for integrated motor control peripherals and CEC support. |
| RA4M1 (R7FA4M1AB3CFM) | Arm Cortex-M4F core, 1 MB Flash, 256 KB SRAM, no CAN 2.0B, supports CAN FD, no QPRC | Higher floating-point performance but missing dedicated QPRC and dual-bank Flash for safe updates | Prefer when advanced DSP features or CAN FD are required, and encoder interface is handled externally or via software. |
Compared with STM32F103ZET6 and RA4M1, CY9BF429SPMC-GK7E1 uniquely combines dual-bank Flash, hardware QPRC, and HDMI-CEC in a single chip-reducing system-level complexity for motor control and consumer electronics applications where those features are critical.
Availability
CY9BF429SPMC-GK7E1 is available at Aetrix Electronics and suitable for industrial motor control, automotive body electronics, smart energy metering, and factory automation I/O modules requiring stable component supply, long-term lifecycle assurance, and qualified sourcing.
Supply support for CY9BF429SPMC-GK7E1 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 control ICs, with global R&D and manufacturing infrastructure.
CY9BF429SPMC-GK7E1 belongs to the FM3 family of 32-bit microcontrollers designed specifically for cost-sensitive, real-time embedded applications demanding integrated analog/motor/peripheral functions and ultra-low-power operation across extended temperature ranges.
FAQ
What is the maximum operating frequency and supported voltage range?
The CY9BF429SPMC-GK7E1 operates at up to 60 MHz with a supply voltage range of 2.7 V to 5.5 V. This wide VCC range allows direct interfacing with both 3.3 V and 5 V logic systems without level shifters, and supports operation across industrial temperature grades (−40°C to +105°C) without derating.
Does this MCU support in-system programming and secure firmware updates?
Yes - it features dual-bank Flash memory (ROM0 and ROM1) enabling read-while-write operation. Firmware updates can be performed safely by executing from one bank while programming the other, with hardware lock bits and security functions preventing unauthorized code access or overwrite.
How many CAN interfaces does CY9BF429SPMC-GK7E1 integrate, and what protocol versions are supported?
The device integrates one CAN controller compliant with ISO 11898-1:2003 (CAN 2.0A/B), supporting both standard and extended identifiers and bit rates up to 1 Mbps. It includes 32 message buffers with hardware acceptance filtering and FIFO management, but does not support CAN FD.
Is there hardware support for encoder-based position sensing, and how is it implemented?
Yes - it includes two Quadrature Position/Revolution Counters (QPRC) with dedicated AIN/BIN/ZIN input pins per channel. Each QPRC provides independent 16-bit position and revolution counters, with configurable edge detection on all three inputs, eliminating need for external decoder ICs in servo or stepper motor applications.
CY9BF429SPMC-GK7E1 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Infineon Technologies
- Package/Case:
- 144-LQFP
- Series:
- FM3 MB9B420TA
- Packaging:
- Tray
- Product Status:
- Active
- Programmable:
- Not Verified
- Core Processor:
- ARM® Cortex®-M3
- Core Size:
- 32-Bit Single-Core
- Speed:
- 60MHz
- Connectivity:
- CANbus, CSIO, EBI/EMI, I2C, LINbus, UART/USART
- Peripherals:
- DMA, LVD, POR, PWM, WDT
- Number of I/O:
- 122
- Program Memory Size:
- 1.5625MB (1.5625M x 8)
- Program Memory Type:
- FLASH
- EEPROM Size:
- -
- RAM Size:
- 192K x 8
- Voltage - Supply (Vcc/Vdd):
- 2.7V ~ 5.5V
- Data Converters:
- A/D 24x12b; D/A 2x10b
- Oscillator Type:
- Internal
- Operating Temperature:
- -40°C ~ 105°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
CY9BF429SPMC-GK7E1 FAQ
1.How can I place an order for CY9BF429SPMC-GK7E1 through Aetrix?
Please submit a Request for Quotation (RFQ) for CY9BF429SPMC-GK7E1 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 CY9BF429SPMC-GK7E1 reliable?
The price and inventory of CY9BF429SPMC-GK7E1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for CY9BF429SPMC-GK7E1 is usually 5 days.
3.What payment methods are accepted for CY9BF429SPMC-GK7E1?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for CY9BF429SPMC-GK7E1 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for CY9BF429SPMC-GK7E1?
CY9BF429SPMC-GK7E1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your CY9BF429SPMC-GK7E1 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 CY9BF429SPMC-GK7E1?
For technical support, including CY9BF429SPMC-GK7E1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your CY9BF429SPMC-GK7E1 requirements.
6.How does Aetrix verify that CY9BF429SPMC-GK7E1 is sourced from the original manufacturer or authorized distributors?
All CY9BF429SPMC-GK7E1 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 CY9BF429SPMC-GK7E1 meets industry standards.
7.What is the process for return or replacement of CY9BF429SPMC-GK7E1?
All CY9BF429SPMC-GK7E1 units undergo pre-shipment inspection (PSI). If there is an issue with CY9BF429SPMC-GK7E1, 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 CY9BF429SPMC-GK7E1 part is unused and in its original packaging.
Return procedure for CY9BF429SPMC-GK7E1:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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