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Infineon Technologies CY9BF428TABGL-GK7E1
- Part No.:
- CY9BF428TABGL-GK7E1
- Manufacturer:
- Infineon Technologies
- Category:
- Microcontrollers
- Package:
- 192-LFBGA
- Datasheet:
-
CY9BF428TABGL-GK7E1.pdf
- Description:
- IC MCU 32B 1.0625MB FLSH 192FBGA
- Quantity:
- Payment:
- Shipping:
Inventory:3,746
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Product details
Overview
CY9BF428TABGL-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, 176-pin LQFP package, and integrated CAN 2.0B, 24-channel 12-bit ADC, and hardware CRC accelerator - deployed in industrial motor control and automotive body electronics.
For engineers reviewing the CY9BF428TABGL-GK7E1 datasheet, CY9BF428TABGL-GK7E1 pinout, CY9BF428TABGL-GK7E1 application, or CY9BF428TABGL-GK7E1 equivalent, key selection criteria include dual-bank flash for safe firmware updates, 1 Mbps CAN interface with 32 message buffers, 60 MHz real-time execution, low-power STOP/Deep Standby modes, and SWJ-DP debug support.
Technical Context
The CY9BF428TABGL-GK7E1 implements an Arm Cortex-M3 r2p1 core operating up to 60 MHz with NVIC supporting 48 peripheral interrupts and 16 priority levels. It integrates dual-bank Flash enabling concurrent read/execute and program/erase operations - critical for over-the-air (OTA) firmware updates without system interruption.
Its peripheral set includes a 1 Mbps CAN controller compliant with ISO 11898-1:2003, two independent 12-bit ADC units with 1.0 µs conversion time and FIFO-based scanning, and a dedicated hardware CRC accelerator supporting CCITT CRC16 and IEEE-802.3 CRC32 polynomials - offloading integrity checks from CPU cycles.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| CPU Core | Arm Cortex-M3 r2p1, 60 MHz max - delivers deterministic real-time response for motor control loops and safety-critical timing. |
| Flash Memory | 1008 KB ROM0 + 512 KB ROM1 + 16 KB ROM0 lower bank - supports dual-operation for seamless firmware update and rollback. |
| SRAM | 96 KB SRAM0 (I/D bus) + 96 KB SRAM1 (system bus) - enables cache-like access patterns and DMA-concurrent data buffering. |
| CAN Interface | CAN 2.0A/B compliant, 1 Mbps max bit rate, 32 message buffers - meets automotive body control network bandwidth and filtering requirements. |
| ADC | 2 × 12-bit SAR ADC, 1.0 µs conversion @ 2.7–5.5 V, 24 channels, FIFO-scanning - supports multi-sensor acquisition in single-cycle sampling windows. |
| Low-Power Modes | SLEEP, TIMER, RTC, STOP, Deep Standby RTC/STOP - enables sub-10 µA retention current with RAM keep in Deep Standby STOP mode. |
| Debug Interface | Serial Wire JTAG Debug Port (SWJ-DP) with ETM trace - enables non-intrusive real-time instruction tracing and breakpoint debugging. |
Pinout & Package
Package: 176-pin LQFP (24 × 24 mm, 0.5 mm pitch), RoHS-compliant, moisture sensitivity level 3.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VCC / VSS | Power supply / Ground | Dual 2.7–5.5 V supply domains with separate analog/digital ground pins - reduces noise coupling in mixed-signal operation. |
| XTAL1 / XTAL2 | Main clock oscillator input/output | Supports 4–48 MHz external crystal - enables precise timing for CAN bit arbitration and real-time scheduling. |
| CLKIN / CLKOUT | External clock input / output | Accepts buffered clock source; outputs divided main clock - simplifies synchronization across multi-chip systems. |
| CAN_TX / CAN_RX | CAN physical layer interface | Differential signaling pair compatible with ISO 11898-2 transceivers - ensures robust EMI immunity in automotive harness environments. |
| PA0–PA15, PB0–PB15, etc. | Multi-function GPIO | 154 total high-speed I/O pins with port relocate, pull-up control, and 5V-tolerant capability on selected pins - enables flexible PCB routing and legacy interface compatibility. |
Key Features
| Feature | Design Value |
|---|---|
| Dual-bank Flash architecture | Enables background programming while executing from alternate bank - eliminates application downtime during field firmware updates. |
| Hardware CRC accelerator | Offloads CCITT CRC16 and IEEE-802.3 CRC32 computation - reduces CPU load by >95% for CAN frame validation and flash image integrity checks. |
| 176-pin LQFP with 5V-tolerant I/O | Supports direct interfacing with legacy 5V logic and sensors without level shifters - lowers BOM cost and board space in industrial HMI and gateway designs. |
| Two independent 12-bit ADC units | Each with 1.0 µs conversion and FIFO-scanning - allows synchronized sampling of motor phase currents and temperature sensors within one control cycle. |
| SWJ-DP + ETM trace | Provides full instruction-level visibility and cycle-accurate timing - essential for ASIL-B functional safety verification and worst-case execution time (WCET) analysis. |
Applications
| Industrial Motor Control | Automotive Body Electronics |
|---|---|
Use Scenario: Closed-loop control of BLDC/PMSM motors in HVAC blowers and power seats. IC Role / Device Role / Timing Role: Real-time execution of FOC algorithms, PWM generation with dead-time insertion, and ADC sampling of current/voltage feedback. Use Value: 60 MHz Cortex-M3 core with 16-bit PPG timers and DTIF interrupt ensures <5 µs motor emergency stop latency under fault conditions. | Use Scenario: Central body controller managing door locks, lighting, and window lift functions. IC Role / Device Role / Timing Role: CAN node handling LIN-to-CAN gateway, sensor polling, and actuator command dispatch with wakeup-on-CAN. Use Value: Dual-bank Flash enables secure OTA updates; STOP mode with 0.5 µA wakeup current extends battery life in parked vehicle scenarios. |
| Smart Energy Meters | Medical Diagnostic Equipment |
Use Scenario: Polyphase electricity meter with harmonic analysis and tamper detection. IC Role / Device Role / Timing Role: High-precision ADC acquisition, CRC-verified data logging to external NAND, and RTC-stamped event recording. Use Value: 24-channel 12-bit ADC with FIFO scanning captures 3-phase voltage/current waveforms at 16 kHz with <±1 LSB INL - meeting IEC 62053-21 Class 0.5S accuracy. | Use Scenario: Portable ultrasound front-end with analog beamforming and digital signal preprocessing. IC Role / Device Role / Timing Role: Time-critical A/D conversion of echo signals, real-time FIR filtering via DMA-accelerated memory moves, and HDMI-CEC remote control interface. Use Value: Hardware CRC32 and 192 KB SRAM enable lossless compression of raw RF data before transmission - reducing wireless bandwidth demand by 40%. |
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 | 72 MHz Cortex-M3, 512 KB Flash, 64 KB SRAM, no dual-bank Flash, no hardware CRC accelerator | Lacks safe OTA update capability and CRC offload - requires software CRC and external flash for firmware redundancy | Select when cost sensitivity outweighs field update safety and cryptographic integrity requirements |
| RA4M1 (R7FA4M1AB3CFM) | 48 MHz Cortex-M4F, 256 KB Flash, 32 KB SRAM, no CAN, no hardware CRC, includes TrustZone | No CAN interface; lacks motor control peripherals (PPG, QPRC); targets secure IoT edge nodes over automotive networks | Select when security isolation (TrustZone) is prioritized over CAN connectivity and real-time motor control features |
Compared with STM32F103ZET6 and RA4M1, CY9BF428TABGL-GK7E1 uniquely combines dual-bank Flash, 1 Mbps CAN, hardware CRC, and 176-pin I/O density - making it optimal for automotive body controllers requiring field-upgradable firmware and deterministic CAN timing.
Availability
CY9BF428TABGL-GK7E1 is available at Aetrix Electronics and suitable for industrial motor control, automotive body electronics, smart energy meters, and medical diagnostic equipment requiring stable component supply across extended product lifecycles.
Supply support for CY9BF428TABGL-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 is a German semiconductor manufacturer specializing in power management, automotive ICs, and embedded controllers - with global R&D centers and ISO/TS 16949-certified manufacturing.
The CY9BF428TABGL-GK7E1 belongs to the FM3 family of 32-bit microcontrollers, designed specifically for cost-sensitive, low-power embedded applications demanding CAN connectivity, real-time performance, and long-term supply stability in automotive and industrial markets.
FAQ
What is the maximum operating frequency and supported clock sources?
The CY9BF428TABGL-GK7E1 operates at up to 60 MHz using five selectable clock sources: 4–48 MHz external crystal (XTAL), 32.768 kHz sub-clock, built-in 4 MHz high-speed CR oscillator, built-in 100 kHz low-speed CR oscillator, or Main PLL output. The PLL supports both external crystal and internal CR inputs, enabling flexible low-power and high-performance clocking configurations without external components.
Does this MCU support safe firmware updates in the field?
Yes - its dual-bank Flash architecture (1008 KB ROM0 + 512 KB ROM1) allows one bank to run active firmware while the other is reprogrammed. Combined with the SWJ-DP debug interface and hardware CRC32 accelerator, it enables verified, atomic firmware updates with rollback capability - meeting UNECE R155 software update management system (SUMS) requirements for automotive applications.
How many CAN message buffers are implemented and what is their allocation method?
The device integrates a single CAN controller with 32 configurable message buffers. Buffers are allocated dynamically via the Message Object RAM (MOAR) register, supporting standard (11-bit) and extended (29-bit) identifiers, mask-based filtering, and transmit/receive prioritization. Each buffer includes dedicated control/status registers and supports automatic retransmission and error handling per ISO 11898-1.
What low-power modes retain RAM content and what is the minimum current draw?
CY9BF428TABGL-GK7E1 retains full SRAM content in SLEEP, TIMER, RTC, STOP, and both Deep Standby RTC and Deep Standby STOP modes. In Deep Standby STOP mode with RAM retention enabled, typical current draw is 0.5 µA at 25°C - achieved using the built-in low-speed CR oscillator and selective peripheral gating, making it suitable for battery-backed applications requiring infrequent wakeups.
CY9BF428TABGL-GK7E1 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Infineon Technologies
- Package/Case:
- 192-LFBGA
- 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:
- 154
- Program Memory Size:
- 1.0625MB (1.0625M x 8)
- Program Memory Type:
- FLASH
- EEPROM Size:
- -
- RAM Size:
- 160K 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:
CY9BF428TABGL-GK7E1 FAQ
1.How can I place an order for CY9BF428TABGL-GK7E1 through Aetrix?
Please submit a Request for Quotation (RFQ) for CY9BF428TABGL-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 CY9BF428TABGL-GK7E1 reliable?
The price and inventory of CY9BF428TABGL-GK7E1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for CY9BF428TABGL-GK7E1 is usually 5 days.
3.What payment methods are accepted for CY9BF428TABGL-GK7E1?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for CY9BF428TABGL-GK7E1 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for CY9BF428TABGL-GK7E1?
CY9BF428TABGL-GK7E1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your CY9BF428TABGL-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 CY9BF428TABGL-GK7E1?
For technical support, including CY9BF428TABGL-GK7E1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your CY9BF428TABGL-GK7E1 requirements.
6.How does Aetrix verify that CY9BF428TABGL-GK7E1 is sourced from the original manufacturer or authorized distributors?
All CY9BF428TABGL-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 CY9BF428TABGL-GK7E1 meets industry standards.
7.What is the process for return or replacement of CY9BF428TABGL-GK7E1?
All CY9BF428TABGL-GK7E1 units undergo pre-shipment inspection (PSI). If there is an issue with CY9BF428TABGL-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 CY9BF428TABGL-GK7E1 part is unused and in its original packaging.
Return procedure for CY9BF428TABGL-GK7E1:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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