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Infineon Technologies CY91F525FSCPMC-GSE2
- Part No.:
- CY91F525FSCPMC-GSE2
- Manufacturer:
- Infineon Technologies
- Category:
- Microcontrollers
- Package:
- 100-LQFP
- Datasheet:
-
CY91F525FSCPMC-GSE2.pdf
- Description:
- IC MCU 32BIT 832KB FLASH 100LQFP
- Quantity:
- Payment:
- Shipping:
Inventory:4,598
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Product details
Overview
CY91F525FSCPMC-GSE2 from Infineon Technologies (formerly Cypress) is a 32-bit FR81S automotive microcontroller with 768+64 KB program flash, 96 KB main RAM + 8 KB backup RAM, 80 MHz max CPU frequency, IEEE 754-compliant FPU, and triple CAN 2.0B controllers. It targets engine control units, body control modules, and ADAS domain controllers requiring ASIL-B capable timing, memory protection, and LIN/CAN coexistence.
For engineers reviewing the CY91F525FSCPMC-GSE2 datasheet, CY91F525FSCPMC-GSE2 pinout, CY91F525FSCPMC-GSE2 application, or CY91F525FSCPMC-GSE2 equivalent, key selection criteria include its 100-pin LQFP package, sub-32 kHz RTC clock supervision, 12-bit 48-channel ADC with 1.4 µs conversion, dual 8-bit DACs, and hardware CRC/MPU/ECC for functional safety compliance.
Technical Context
The CY91F525FSCPMC-GSE2 implements the FR81S 32-bit RISC core with 5-stage pipeline, Harvard architecture, and instruction compatibility with the broader FR family. It integrates an on-chip PLL supporting 1–20× multiplication of 4–16 MHz main oscillators, plus a dedicated 100 kHz CR oscillator for fail-safe clock switching.
Peripheral integration includes three independent CAN controllers (128/64-message buffers), twelve multi-function serial channels (UART/LIN/CSIO/I²C), a 48-channel PPG for LED and motor control, and dual 8-bit R-2R DACs. Memory subsystem features ECC on flash and RAM, MPU with eight configurable protection areas, and 64 KB WorkFlash for data logging.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| CPU Core | FR81S 32-bit RISC, 5-stage pipeline, 80 MHz max (12.5 ns min instruction time) |
| Memory | 768+64 KB program flash + 64 KB WorkFlash; 96 KB main RAM + 8 KB backup RAM |
| Analog Peripherals | 12-bit 48-channel ADC (1.4 µs conv.); dual 8-bit R-2R DACs |
| Communication | 3× CAN 2.0B (up to 1 Mbps); 12× multi-protocol serial (UART/LIN/CSIO/I²C) |
| Timers & PWM | 48× 16-bit PPG channels; 6× waveform generators; 32-bit free-run timers up to 6 ch |
| Safety Features | MPU (8 regions), ECC on flash/RAM, hardware/software watchdog, CRC generator, TPU |
| Operating Range | -40 °C to +125 °C ambient; 2.7 V to 5.5 V supply; 5 V I/O tolerant |
Pinout & Package
Package: 100-pin LQFP (LQH100), 14 × 14 mm, 0.5 mm pitch, RoHS-compliant, moisture sensitivity level 3.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDD, VSS | Power supply and ground | Dedicated 5 V core I/O supply pins with decoupling requirements per datasheet Section 5 |
| XTAL1/XTAL2 | Main crystal oscillator input/output | Supports 4–16 MHz external quartz; enables PLL clock multiplication |
| RTCX1/RTCX2 | Sub-clock oscillator terminals | Connects 32.768 kHz crystal for RTC and clock supervision functions |
| RESET | Active-low reset input | Asynchronous reset with internal pull-up; accepts external reset signal or POR/LVD assertion |
| TRST, TCK, TMS, TDO, TDI | JTAG debug interface | Enables on-chip debugging, flash programming, and boundary scan via OCD module |
| CAN0TX, CAN0RX | Channel 0 CAN transceiver interface | Differential signaling pair for CAN 2.0B bus communication at up to 1 Mbps |
Key Features
| Feature | Design Value |
|---|---|
| Floating-point unit (FPU) | IEEE 754-compliant 32-bit FPU with 16× 32-bit registers, enabling real-time math in motor control |
| Memory protection (MPU) | Eight configurable regions enforcing privilege/user mode access control for both code and data space |
| Functional safety support | Built-in TPU, ECC on flash/RAM, CRC generator, and hardware watchdog meet ASIL-B diagnostic coverage needs |
| Flexible clock system | Triple clock sources (main XTAL, sub-RTC, 100 kHz CR) with automatic failover and SSCG spread-spectrum capability |
| I/O relocation | Runtime remapping of peripheral functions to alternate GPIO pins, simplifying PCB layout and design reuse |
Applications
| Engine Control Unit (ECU) | Body Control Module (BCM) |
|---|---|
Use Scenario: Real-time combustion timing, fuel injection pulse width, and knock detection in gasoline/diesel powertrains. IC Role / Device Role / Timing Role: Primary MCU executing ASIL-B safety-critical control loops with deterministic 80 MHz execution and hardware CRC validation. Use Value: Integrated triple CAN, 48-channel ADC, and FPU enable closed-loop spark/fuel control without external coprocessors. | Use Scenario: Centralized management of lighting, door locks, window lifts, and HVAC in premium vehicle platforms. IC Role / Device Role / Timing Role: High-integration host controller coordinating LIN slave nodes and CAN gateway functions with secure firmware updates. Use Value: 100-pin LQFP provides sufficient GPIO for direct LED driver outputs and relay control while supporting OTA update via WorkFlash. |
| ADAS Domain Controller | Electric Power Steering (EPS) |
Use Scenario: Sensor fusion hub aggregating radar, camera, and ultrasonic inputs for lane-keeping and AEB decision logic. IC Role / Device Role / Timing Role: Safety-managed compute node with MPU-enforced partitioning between ASIL-B perception and ASIL-A comms stacks. Use Value: ECC RAM and flash, TPU, and dual CAN interfaces ensure fault containment and deterministic latency for time-critical actuation commands. | Use Scenario: Torque assist calculation and motor phase control in column-assist and rack-assist EPS systems. IC Role / Device Role / Timing Role: Real-time motor controller with PPG-driven 3-phase PWM generation and 12-bit ADC current sensing at ≤1.4 µs resolution. Use Value: 48-channel PPG and dual 8-bit DACs allow simultaneous steering angle feedback, torque sensor conditioning, and motor drive waveform shaping. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar automotive microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| RH850/F1K | 32-bit RXv2 core, 200 MHz max, 2 MB flash, no integrated FPU; uses separate safety monitor chip | Lacks on-die FPU and WorkFlash; requires external safety IC for ASIL-B compliance | Preferred where higher clock speed and larger flash offset absence of integrated FPU and ECC RAM |
| TC375A | TriCore™ 32-bit core, 300 MHz, 4 MB flash, integrated SafeTcore, but no sub-32 kHz RTC oscillator | No native 32.768 kHz RTC clock path; relies on external crystal or system-level clock tree | Chosen when higher compute throughput and certified SafeTcore outweigh need for autonomous RTC calibration |
Compared with RH850/F1K and TC375A, the CY91F525FSCPMC-GSE2 delivers balanced performance with integrated FPU, on-die RTC calibration, and unified ECC/MPU safety features in a 100-pin footprint-ideal for cost-sensitive ASIL-B domains where mixed analog/digital I/O density matters.
Availability
CY91F525FSCPMC-GSE2 is available at Aetrix Electronics and suitable for engine control units, body control modules, and ADAS domain controllers requiring stable component supply across automotive production lifecycles.
Supply support for CY91F525FSCPMC-GSE2 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 automotive qualification expertise.
The CY91520 series was developed by Cypress (acquired by Infineon in 2020) specifically for automotive body, chassis, and powertrain applications demanding ASIL-B compliance, high I/O density, and integrated functional safety peripherals.
FAQ
What is the maximum operating temperature range for CY91F525FSCPMC-GSE2?
The CY91F525FSCPMC-GSE2 is qualified for operation from -40 °C to +125 °C ambient temperature, meeting AEC-Q100 Grade 1 requirements. This rating applies to all core logic, flash, RAM, and integrated peripherals including CAN, ADC, and PPG modules under specified voltage and load conditions.
Does CY91F525FSCPMC-GSE2 support JTAG debugging out of the box?
Yes, the device includes a fully compliant JTAG interface (TRST, TCK, TMS, TDO, TDI pins) tied to the on-chip debug (OCD) module. No external debug probe initialization or bootloader is required-standard JTAG tools like Segger J-Link or Lauterbach TRACE32 can connect directly after power-up and reset release.
How does the sub-clock supervision function work in this MCU?
The clock supervisor continuously monitors the 32.768 kHz sub-oscillator using internal circuitry. If abnormal oscillation (e.g., crystal failure) is detected, it automatically switches the RTC and related timing blocks to the internal 100 kHz CR oscillator within one cycle, preserving timekeeping integrity without software intervention.
Is the 64 KB WorkFlash field-programmable independently of main program flash?
Yes, the 64 KB WorkFlash is a separate, independently erasable and writable memory block accessible via dedicated flash control registers. It supports byte/word programming and sector erase, enabling robust data logging, parameter storage, and OTA firmware update staging without affecting main application code.
CY91F525FSCPMC-GSE2 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Infineon Technologies
- Package/Case:
- 100-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:
- 76
- 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 37x12b; D/A 2x8b
- Oscillator Type:
- External
- Operating Temperature:
- -40°C ~ 105°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
CY91F525FSCPMC-GSE2 FAQ
1.How can I place an order for CY91F525FSCPMC-GSE2 through Aetrix?
Please submit a Request for Quotation (RFQ) for CY91F525FSCPMC-GSE2 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 CY91F525FSCPMC-GSE2 reliable?
The price and inventory of CY91F525FSCPMC-GSE2 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for CY91F525FSCPMC-GSE2 is usually 5 days.
3.What payment methods are accepted for CY91F525FSCPMC-GSE2?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for CY91F525FSCPMC-GSE2 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for CY91F525FSCPMC-GSE2?
CY91F525FSCPMC-GSE2 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your CY91F525FSCPMC-GSE2 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 CY91F525FSCPMC-GSE2?
For technical support, including CY91F525FSCPMC-GSE2 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your CY91F525FSCPMC-GSE2 requirements.
6.How does Aetrix verify that CY91F525FSCPMC-GSE2 is sourced from the original manufacturer or authorized distributors?
All CY91F525FSCPMC-GSE2 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 CY91F525FSCPMC-GSE2 meets industry standards.
7.What is the process for return or replacement of CY91F525FSCPMC-GSE2?
All CY91F525FSCPMC-GSE2 units undergo pre-shipment inspection (PSI). If there is an issue with CY91F525FSCPMC-GSE2, 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 CY91F525FSCPMC-GSE2 part is unused and in its original packaging.
Return procedure for CY91F525FSCPMC-GSE2:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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