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Infineon Technologies CY91F525DSCPMC-GTE1
- Part No.:
- CY91F525DSCPMC-GTE1
- Manufacturer:
- Infineon Technologies
- Category:
- Microcontrollers
- Package:
- 80-LQFP
- Datasheet:
-
CY91F525DSCPMC-GTE1.pdf
- Description:
- IC MCU 32BIT 832KB FLASH 80LQFP
- Quantity:
- Payment:
- Shipping:
Inventory:3,514
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Product details
Overview
CY91F525DSCPMC-GTE1 from Infineon Technologies (formerly Cypress) is a 32-bit FR81S automotive microcontroller with 768+64 KB program flash, 96+8 KB RAM, 80 MHz max CPU frequency, IEEE 754-compliant FPU, and triple CAN 2.0B controllers. It integrates 12-bit ADC (48 ch), dual 8-bit DAC, RTC, and operates from -40°C to +125°C in LQFP-80 package for engine control units and body electronics.
For engineers reviewing the CY91F525DSCPMC-GTE1 datasheet, CY91F525DSCPMC-GTE1 pinout, CY91F525DSCPMC-GTE1 application, or CY91F525DSCPMC-GTE1 equivalent, key selection criteria include CAN channel count, sub-oscillator support, LVD configuration, flash ECC coverage, and PPG channel availability for LED driver integration.
Technical Context
The CY91F525DSCPMC-GTE1 implements the FR81S 32-bit RISC core with 5-stage pipeline, Harvard architecture, and MPU-enforced memory protection across eight configurable regions. It supports both privilege and user modes with register interlock and branch delay slot optimization.
Its peripheral set includes three independent CAN controllers (128/64-message buffers), 12-channel multi-function serial interface (UART/CSIO/LIN/I²C), and a 16-bit PPG subsystem with 48 channels-four dedicated to LED drive outputs (pins P11–P14). The SSCG clock generator enables flexible PLL multiplication (1×–20×) from 4–16 MHz main oscillator or 32 kHz subclock.
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 program flash + 64 KB WorkFlash + 96 KB main RAM + 8 KB backup RAM |
| FPU | IEEE 754-compliant single-precision floating-point unit with 32-bit × 16 register file |
| CAN Interfaces | 3 × CAN 2.0B controllers: ch.0 (128 msg buffers), ch.1/ch.2 (64 msg buffers each), up to 1 Mbps |
| ADC/DAC | 12-bit successive-approximation ADC (48 ch total), 8-bit R-2R DAC (2 ch) |
| Package & Temp | LQFP-80 (12 × 12 mm), AEC-Q100 Grade 1 qualified (-40°C to +125°C ambient) |
| Power Supply | Single 5 V supply; internal 1.2 V core rail generated on-chip via voltage step-down circuit |
Pinout & Package
LQFP-80 package with 0.5 mm pitch, exposed thermal pad, and RoHS-compliant lead finish. Pinout validated per Infineon Document Number 002-04662 Rev. *I, Pages 12–17.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDD, VSS | Power supply and ground | Dedicated 5 V power pins with decoupling requirements per datasheet Section 5.1 |
| XIN, XOUT | Main crystal oscillator input/output | Supports 4–16 MHz external quartz; drives on-chip PLL for system clock generation |
| EXCLK | External clock input | Alternative clock source for UART/CSIO/LIN baud rate generation or subclock bypass |
| RESET | Active-low reset input | Asynchronous reset with internal pull-up; triggers POR, LVD, and watchdog-induced resets |
| CAN0_TX, CAN0_RX | CAN channel 0 differential signal pair | Direct connection to external CAN transceiver; supports 1 Mbps bit rate with integrated bus arbitration logic |
| P11–P14 | LED drive output pins | Configurable as PPG outputs for constant-current LED driving; require external current-limiting resistors |
Key Features
| Feature | Design Value |
|---|---|
| Memory Protection Unit (MPU) | Eight programmable protection areas enforcing access privilege in both user and supervisor modes |
| ECC Coverage | End-to-end error correction for program flash, WorkFlash, and RAM-detects and corrects single-bit errors |
| Low-Power Modes | Sleep, Stop, Watch, and Sub RUN modes with selective peripheral retention and wake-on-interrupt capability |
| Clock Supervision | Dual-clock monitoring of main (4 MHz) and sub (32 kHz) oscillators; automatic failover to CR oscillator on fault detection |
| On-Chip Debug | OCD interface supporting real-time trace, breakpoint insertion, and memory inspection without halting CPU execution |
Applications
| Engine Control Unit (ECU) | Body Control Module (BCM) |
|---|---|
Use Scenario: Real-time combustion timing, fuel injection pulse width calculation, and knock detection using analog sensor inputs. IC Role / Device Role / Timing Role: Primary MCU executing safety-critical ASIL-B software with FPU-accelerated PID loops and CAN-based actuator command distribution. Use Value: 80 MHz deterministic execution, ECC-protected flash for ISO 26262 compliance, and triple CAN for redundancy between powertrain, chassis, and diagnostic networks. | Use Scenario: Centralized management of door locks, lighting zones, window lifters, and HVAC fan speed. IC Role / Device Role / Timing Role: System coordinator interfacing with LIN slaves (door modules) and CAN nodes (instrument cluster, gateway) while driving LEDs via PPG outputs. Use Value: Integrated 48-channel ADC monitors multiple potentiometers/sensors; 4 dedicated LED drive pins (P11–P14) eliminate external drivers for status indicators. |
| Advanced Driver Assistance Systems (ADAS) Sensor Hub | Electric Power Steering (EPS) Controller |
Use Scenario: Aggregation and preprocessing of radar, camera, and ultrasonic sensor data before forwarding to central ADAS ECU. IC Role / Device Role / Timing Role: Edge-processing node performing time-synchronized sampling of analog front-ends and timestamping CAN messages with RTC. Use Value: Hardware CRC generator ensures integrity of sensor data packets; RTC with subclock calibration maintains ±2 ppm accuracy over temperature for precise time-stamping. | Use Scenario: Closed-loop torque control of steering motor using resolver feedback and current sensing. IC Role / Device Role / Timing Role: Safety-focused controller executing ASIL-C torque algorithms with dual-core lockstep not applicable, but leveraging MPU isolation and ECC RAM for fault containment. Use Value: 12-bit ADC samples motor phase currents at 1.4 μs conversion time; FPU accelerates Clarke/Park transforms; CAN ch.0 handles high-priority torque commands. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar automotive microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SPC560P50L5 | Power Architecture e200z0h core, 64 MHz max, 512 KB flash, no integrated FPU | Lacks IEEE 754 FPU and PPG-based LED drive; requires external DAC for analog output | Preferred where Power Architecture toolchain compatibility or legacy SPC5 ecosystem integration is required |
| TC375LP-32F200N AC | TriCore™ AURIX™ 32-bit core, 200 MHz, 2 MB flash, hardware safety mechanisms (lockstep, ECC, SMU) | Higher ASIL-D readiness with built-in safety monitor unit; larger memory but higher BOM cost | Selected when full ISO 26262 ASIL-D certification path is mandated and budget allows premium safety features |
Compared with SPC560P50L5 and TC375LP-32F200N AC, the CY91F525DSCPMC-GTE1 delivers optimal balance of FPU-enabled algorithm performance, integrated LED drive capability, and AEC-Q100 Grade 1 operation at lower system cost-making it ideal for mid-tier automotive ECUs where ASIL-B compliance suffices.
Availability
CY91F525DSCPMC-GTE1 is available at Aetrix Electronics and suitable for engine control units, body control modules, ADAS sensor hubs, and electric power steering controllers requiring stable component supply across automotive production lifecycles.
Supply support for CY91F525DSCPMC-GTE1 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 ICs, and security solutions, with global R&D and manufacturing infrastructure.
The CY91520 series was developed by Cypress (acquired by Infineon in 2020) to serve automotive applications demanding high reliability, integrated analog peripherals, and CAN/LIN connectivity-targeting cost-sensitive yet function-rich ECU designs.
FAQ
What is the default sub-oscillator configuration for CY91F525DSCPMC-GTE1?
The CY91F525DSCPMC-GTE1 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 mode timing without external components, and its failure is monitored by the Clock Supervisor with automatic CR oscillator fallback.
Does CY91F525DSCPMC-GTE1 support CAN FD?
No. The CY91F525DSCPMC-GTE1 integrates three classical CAN 2.0B controllers supporting up to 1 Mbps bit rate, but does not implement CAN FD protocol features such as flexible data-rate or extended data length. Its CAN modules lack the arbitration/data phase switching and bit-rate switching logic required for CAN FD compliance.
How is flash security implemented on this MCU?
Flash security uses a Key Code Register (KCR) that must be written with a specific 32-bit value before enabling read-out protection or write protection on designated flash blocks. Once locked, unauthorized access triggers a reset; unlocking requires chip erase. Security features are documented in Section 13.3 of the datasheet and operate independently of the MPU.
Can the 8-bit DAC outputs drive standard LEDs directly?
No. The two 8-bit DAC channels provide voltage outputs only and lack current-driving capability. To drive LEDs, external transistor switches or constant-current drivers must be used. For direct LED control, the four PPG outputs (P11–P14) are purpose-designed with configurable current sink capability and PWM modulation support.
CY91F525DSCPMC-GTE1 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Infineon Technologies
- Package/Case:
- 80-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:
- 56
- 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 32x12b; D/A 1x8b
- Oscillator Type:
- External
- Operating Temperature:
- -40°C ~ 105°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
CY91F525DSCPMC-GTE1 FAQ
1.How can I place an order for CY91F525DSCPMC-GTE1 through Aetrix?
Please submit a Request for Quotation (RFQ) for CY91F525DSCPMC-GTE1 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 CY91F525DSCPMC-GTE1 reliable?
The price and inventory of CY91F525DSCPMC-GTE1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for CY91F525DSCPMC-GTE1 is usually 5 days.
3.What payment methods are accepted for CY91F525DSCPMC-GTE1?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for CY91F525DSCPMC-GTE1 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for CY91F525DSCPMC-GTE1?
CY91F525DSCPMC-GTE1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your CY91F525DSCPMC-GTE1 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 CY91F525DSCPMC-GTE1?
For technical support, including CY91F525DSCPMC-GTE1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your CY91F525DSCPMC-GTE1 requirements.
6.How does Aetrix verify that CY91F525DSCPMC-GTE1 is sourced from the original manufacturer or authorized distributors?
All CY91F525DSCPMC-GTE1 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 CY91F525DSCPMC-GTE1 meets industry standards.
7.What is the process for return or replacement of CY91F525DSCPMC-GTE1?
All CY91F525DSCPMC-GTE1 units undergo pre-shipment inspection (PSI). If there is an issue with CY91F525DSCPMC-GTE1, 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 CY91F525DSCPMC-GTE1 part is unused and in its original packaging.
Return procedure for CY91F525DSCPMC-GTE1:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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