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Infineon Technologies CY91F525BSCPMC1-GSE1
- Part No.:
- CY91F525BSCPMC1-GSE1
- Manufacturer:
- Infineon Technologies
- Category:
- Microcontrollers
- Package:
- 64-LQFP
- Datasheet:
-
CY91F525BSCPMC1-GSE1.pdf
- Description:
- IC MCU 32BIT 832KB FLASH 64LQFP
- Quantity:
- Payment:
- Shipping:
Inventory:2,837
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Product details
Overview
CY91F525BSCPMC1-GSE1 from Infineon Technologies (formerly Cypress) is a 32-bit FR81S automotive microcontroller with 768 KB + 64 KB program flash, 96 KB main RAM + 8 KB backup RAM, IEEE 754-compliant FPU, and dual CAN 2.0B controllers supporting up to 1 Mbps. It operates at 80 MHz (12.5 ns instruction cycle), features 44 GPIOs, 12-bit A/D (up to 48 channels), and supports -40°C to +125°C operation for engine control units.
For engineers reviewing the CY91F525BSCPMC1-GSE1 datasheet, CY91F525BSCPMC1-GSE1 pinout, CY91F525BSCPMC1-GSE1 application, or CY91F525BSCPMC1-GSE1 equivalent, key selection criteria include CAN channel count, flash/RAM sizing, sub-oscillator support, LVD configuration, and package-specific I/O count in automotive ASIL-B–capable designs.
Technical Context
The CY91F525BSCPMC1-GSE1 implements the FR81S 32-bit RISC core with 5-stage pipeline, Harvard architecture, and MPU-enforced privilege/user mode separation. It integrates dual clock supervisors (main 4–16 MHz + sub-32 kHz), SSCG-based PLL (×1–20), and CR oscillator fallback for fail-safe timing.
Peripheral integration includes three CAN controllers (128/64-message buffers per channel), 12-channel multi-function serial interface (UART/LIN/CSIO/I²C), 48-channel PPG, RTC with subclock calibration, and ECC-protected flash/RAM. All peripherals are memory-mapped and interrupt-routed via a centralized controller with 16 priority levels.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| CPU Core | FR81S 32-bit RISC, 5-stage pipeline, 80 MHz max (12.5 ns instruction cycle) |
| Memory | 768 KB + 64 KB program flash, 64 KB WorkFlash, 96 KB main RAM + 8 KB backup RAM |
| FPU | IEEE 754-compliant single-precision, 32-bit × 16 register file |
| CAN Interface | 3 channels, CAN 2.0B compliant, up to 1 Mbps, 128/64 message buffers per channel |
| A/D Converter | 12-bit successive approximation, 48 total channels (32+16), 1.4 μs conversion time |
| Package & Temp | 64-pin LQFP (LQD064), -40°C to +125°C ambient operating range |
| Power Supply | 2.7 V to 5.5 V, internal 1.2 V core rail generated via on-chip step-down regulator |
Pinout & Package
64-pin LQFP (LQD064) package with 0.5 mm pitch, 10 mm × 10 mm body, and exposed thermal pad. Pinout validated per Infineon document 002-04662 Rev. *I, pages 12–17.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDD, VSS | Power supply / Ground | Dedicated 5 V analog/digital supply pins with decoupling requirements per layout guidelines |
| XIN, XOUT | Main crystal oscillator input/output | Supports 4–16 MHz external quartz; enables PLL clock multiplication system |
| EXCLK | External clock input | Alternative clock source for serial interfaces and timers; bypasses crystal circuit |
| RESET | Active-low reset input | Asynchronous reset with internal pull-up; triggers power-on reset and LVD-induced reset |
| TXD0–TXD2, RXD0–RXD2 | CAN transceiver interface | Dedicated differential CANH/CANL signal routing; requires external transceivers for bus connection |
| AD0–AD15 | Analog input channels | 12-bit A/D inputs mapped to GPIOs; shared with port functions; require external RC filtering |
Key Features
| Feature | Design Value |
|---|---|
| Memory Protection Unit (MPU) | Eight configurable protection areas enforcing access privilege in user/privilege modes for secure firmware partitioning |
| ECC Protection | End-to-end error correction for flash (program/data) and RAM, enabling ASIL-B compliance in safety-critical systems |
| Subclock Calibration | RTC prescaler adjustment corrects main-to-subclock ratio drift, ensuring ±1 ppm accuracy over temperature and aging |
| Low-Power Modes | Sleep/Stop/Watch/Sub RUN modes with selective peripheral retention and wake-up via CAN, RTC, or external interrupt |
| OCD Debug Interface | On-chip debug with real-time trace, breakpoint, and memory inspection without halting CPU execution |
Applications
| Engine Control Unit (ECU) | Transmission Control Module (TCM) |
|---|---|
Use Scenario: Real-time combustion timing, fuel injection pulse width, and knock detection in gasoline direct injection engines. IC Role / Device Role / Timing Role: Primary MCU executing closed-loop PID control at 10 kHz with deterministic CAN message scheduling and hardware-accelerated math. Use Value: 80 MHz FR81S core + FPU enables floating-point motor model execution; dual CAN handles powertrain and diagnostics traffic simultaneously. | Use Scenario: Gear shift logic, clutch pressure modulation, and torque converter lock-up control in 8-speed automatic transmissions. IC Role / Device Role / Timing Role: Safety-aware controller managing ASIL-B–compliant actuator drivers and monitoring hydraulic sensor feedback. Use Value: ECC RAM/flash and MPU enforce memory isolation between control and diagnostic partitions; RTC enables precise shift event timestamping. |
| Body Control Module (BCM) | Advanced Driver Assistance System (ADAS) Sensor Hub |
Use Scenario: Centralized management of door locks, lighting, wipers, and HVAC across vehicle domains. IC Role / Device Role / Timing Role: Multi-peripheral coordinator interfacing LIN slaves (mirrors, seats), CAN clusters, and analog sensors. Use Value: 12-channel serial interface supports concurrent LIN master/slave, UART debug, and CSIO SPI flash access without software overhead. | Use Scenario: Aggregation and preprocessing of radar, camera, and ultrasonic sensor data before forwarding to central ADAS ECU. IC Role / Device Role / Timing Role: Time-synchronized data acquisition node with hardware timestamping and DMA-driven sensor streaming. Use Value: 48-channel A/D + 16-channel PPG enables simultaneous analog sensor sampling and LED driver control for time-of-flight sensors. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar automotive microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| NXP S32K144 | ARM Cortex-M4F core, 112 MHz, 512 KB flash, no integrated CAN transceivers | Requires external CAN PHY; broader automotive qualification (AEC-Q100 Grade 1), more mature AUTOSAR stack support | Select when AUTOSAR OS integration and long-term toolchain stability are prioritized over FR81S instruction compatibility |
| Renesas RH850/F1L | 32-bit RH850 core, 64 MHz, 768 KB flash, 96 KB RAM, 2 CAN FD channels | Supports CAN FD (5 Mbps), lacks FPU but includes DSP extensions; higher power consumption in active mode | Select when CAN FD bandwidth and legacy RH850 ecosystem familiarity outweigh need for IEEE 754 floating-point precision |
Compared with the CY91F525BSCPMC1-GSE1, the S32K144 offers stronger AUTOSAR readiness but requires external CAN PHYs, while the RH850/F1L provides CAN FD and DSP acceleration at the cost of lower clock speed and no native FPU-making the CY91F525BSCPMC1-GSE1 optimal for high-precision, CAN 2.0B–based engine control where FR-family code reuse is critical.
Availability
CY91F525BSCPMC1-GSE1 is available at Aetrix Electronics and suitable for engine control units, transmission control modules, body control modules, and ADAS sensor hubs requiring stable component supply across automotive production lifecycles.
Supply support for CY91F525BSCPMC1-GSE1 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 security solutions, with global manufacturing and R&D infrastructure.
The CY91520 series was developed by Cypress (acquired by Infineon in 2020) specifically for ASIL-B–capable automotive powertrain and chassis control applications demanding high-integrity timing, ECC memory, and multi-CAN connectivity.
FAQ
What is the default sub-oscillator configuration for CY91F525BSCPMC1-GSE1?
The CY91F525BSCPMC1-GSE1 includes a 32 kHz sub-oscillator enabled by default, as indicated by the "S" in the part number suffix. This supports RTC operation and low-power Watch mode with calibrated drift compensation via the RTC prescaler register.
Does this MCU support CAN FD or only classical CAN 2.0B?
This device supports only CAN 2.0B at up to 1 Mbps across three independent controllers. It does not implement CAN FD protocol features such as flexible data-rate or extended data length; CAN FD capability requires newer Infineon families like the AURIX TC3xx series.
How is flash security implemented on CY91F525BSCPMC1-GSE1?
Flash security uses a dedicated key-code register (KCR) and lock-bit mechanism. Once locked, debug access and flash read-out are disabled unless the correct 32-bit key is written during reset sequence. Security status is verified at boot via hardware checksum and protected memory mapping enforced by the MPU.
What is the role of the SSCG function in clock generation?
The Spread Spectrum Clock Generator (SSCG) modulates the PLL output frequency to reduce electromagnetic interference (EMI) peak emissions. It is configurable via registers to apply ±0.25% or ±0.5% spread over 30–33 kHz range, meeting automotive CISPR 25 Class 5 radiated emission limits without external shielding.
CY91F525BSCPMC1-GSE1 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Infineon Technologies
- Package/Case:
- 64-LQFP
- Series:
- FR MB91520
- Packaging:
- Tray
- Product Status:
- Obsolete
- Programmable:
- Not Verified
- Core Processor:
- FR81S
- Core Size:
- 32-Bit Single-Core
- Speed:
- 80MHz
- Connectivity:
- CANbus, CSIO, I2C, LINbus, SPI, UART/USART
- Peripherals:
- DMA, LVD, POR, PWM, WDT
- Number of I/O:
- 44
- Program Memory Size:
- 832KB (832K x 8)
- Program Memory Type:
- FLASH
- EEPROM Size:
- 64K x 8
- RAM Size:
- 102K x 8
- Voltage - Supply (Vcc/Vdd):
- 2.7V ~ 5.5V
- Data Converters:
- A/D 26x12b; D/A 1x8b
- Oscillator Type:
- External
- Operating Temperature:
- -40°C ~ 105°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
CY91F525BSCPMC1-GSE1 FAQ
1.How can I place an order for CY91F525BSCPMC1-GSE1 through Aetrix?
Please submit a Request for Quotation (RFQ) for CY91F525BSCPMC1-GSE1 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 CY91F525BSCPMC1-GSE1 reliable?
The price and inventory of CY91F525BSCPMC1-GSE1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for CY91F525BSCPMC1-GSE1 is usually 5 days.
3.What payment methods are accepted for CY91F525BSCPMC1-GSE1?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for CY91F525BSCPMC1-GSE1 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for CY91F525BSCPMC1-GSE1?
CY91F525BSCPMC1-GSE1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your CY91F525BSCPMC1-GSE1 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 CY91F525BSCPMC1-GSE1?
For technical support, including CY91F525BSCPMC1-GSE1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your CY91F525BSCPMC1-GSE1 requirements.
6.How does Aetrix verify that CY91F525BSCPMC1-GSE1 is sourced from the original manufacturer or authorized distributors?
All CY91F525BSCPMC1-GSE1 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 CY91F525BSCPMC1-GSE1 meets industry standards.
7.What is the process for return or replacement of CY91F525BSCPMC1-GSE1?
All CY91F525BSCPMC1-GSE1 units undergo pre-shipment inspection (PSI). If there is an issue with CY91F525BSCPMC1-GSE1, 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 CY91F525BSCPMC1-GSE1 part is unused and in its original packaging.
Return procedure for CY91F525BSCPMC1-GSE1:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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