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Infineon Technologies CY91F526DSCPMC-GTE1
- Part No.:
- CY91F526DSCPMC-GTE1
- Manufacturer:
- Infineon Technologies
- Category:
- Microcontrollers
- Package:
- 80-LQFP
- Datasheet:
-
CY91F526DSCPMC-GTE1.pdf
- Description:
- IC MCU 32B 1.0625MB FLASH 80LQFP
- Quantity:
- Payment:
- Shipping:
Inventory:1,955
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Product details
Overview
CY91F526DSCPMC-GTE1 from Infineon Technologies (formerly Cypress) is a 32-bit FR81S automotive microcontroller with 1024+64 KB program flash, 128 KB main RAM + 8 KB backup RAM, 80 MHz max CPU frequency, IEEE 754-compliant FPU, and integrated CAN 2.0B controllers (3 channels, up to 1 Mbps). It targets engine control units and body electronics requiring ASIL-B capable timing, memory protection, and dual-clock supervision.
For engineers reviewing the CY91F526DSCPMC-GTE1 datasheet, CY91F526DSCPMC-GTE1 pinout, CY91F526DSCPMC-GTE1 application, or CY91F526DSCPMC-GTE1 equivalent, key selection criteria include its 80-pin LQFP package, 12-bit 32-channel A/D converter (1.4 μs conversion), 3-channel CAN interface with 128-message buffer (ch.0), and sub-oscillator-based RTC with calibration support.
Technical Context
The CY91F526DSCPMC-GTE1 implements the FR81S 32-bit RISC core with 5-stage pipeline, Harvard architecture, and instruction compatibility with the FR family. It integrates an on-chip PLL supporting 1×–20× multiplication of 4–16 MHz main clock, plus a dedicated 100 kHz CR oscillator for fail-safe clock switching.
Peripheral subsystems include a 16-channel DMA controller, multi-function serial interfaces (UART/CSIO/LIN/I²C) with 64-step FIFOs per channel, and a PPG unit with 48 16-bit channels supporting LED drive outputs on pins 11–14. The device supports Sleep/Stop/Watch/Sub RUN low-power modes with independent external/internal LVD reset detection.
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 | 1024+64 KB program flash + 64 KB WorkFlash; 128 KB main RAM + 8 KB backup RAM |
| Analog Peripherals | 12-bit SAR ADC (32 ch, 1.4 μs); 8-bit R-2R DAC (2 ch); RTC with subclock calibration |
| Communication | 3 CAN 2.0B channels (128/64 msg buffers); 12-channel multi-serial (UART/CSIO/LIN/I²C) |
| Timers & PWM | 16-bit PPG × 48 ch; free-run timer (16/32-bit × 3 ch); reload timer × 8 ch; waveform generator × 6 ch |
| Security & Reliability | MPU (8 protection areas), ECC on flash/RAM, CRC generator, hardware/software watchdog, TPU |
| Package & Environment | 80-pin LQFP (LQH080), -40°C to +125°C operating range, 2.7–5.5 V supply |
Pinout & Package
Package: 80-pin LQFP (LQH080), 12 mm × 12 mm, 0.5 mm pitch, exposed pad for thermal dissipation.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDD, VSS | Power supply and ground | Dual 5 V supply domains with internal 1.2 V regulator; separate analog/digital grounds required |
| XIN, XOUT | Main crystal oscillator input/output | Supports 4–16 MHz quartz; enables PLL clock multiplication for 80 MHz system clock |
| EXCLK | External clock input | Accepts external clock source for serial interfaces or as alternative system clock |
| RTCXIN, RTCXOUT | Sub-oscillator (32 kHz) crystal terminals | Enables RTC operation and clock supervisor monitoring; supports calibration via prescaler |
| CAN0TX, CAN0RX | CAN channel 0 differential transceiver I/O | Direct connection to external CAN transceiver; supports up to 1 Mbps data rate |
| AD0–AD31 | Analog input channels | 32 dedicated pins for 12-bit ADC; configurable as GPIO when not used for analog acquisition |
| P11–P14 | LED drive output pins | PPG-controlled outputs with current sink capability; used for dashboard indicator lighting |
Key Features
| Feature | Design Value |
|---|---|
| Floating-point unit (FPU) | IEEE 754-compliant 32-bit FPU with 16-register file; accelerates motor control and sensor fusion math |
| Memory protection unit (MPU) | Eight configurable protection regions with privilege/user mode access control; enforces ASIL-B software partitioning |
| Clock supervisor | Dual monitoring of main (4 MHz) and sub (32 kHz) oscillators; automatic switch to CR oscillator on failure |
| Multi-serial with FIFO | 12-channel UART/CSIO/LIN/I²C with 64-step TX/RX FIFOs; reduces CPU overhead in high-throughput comms |
| Hardware CRC generator | Dedicated peripheral for fast checksum calculation on flash updates or CAN message payloads |
Applications
| Engine Control Unit (ECU) | Body Control Module (BCM) |
|---|---|
Use Scenario: Real-time fuel injection timing, spark advance calculation, and OBD-II diagnostics in gasoline engines. IC Role / Device Role / Timing Role: Primary MCU executing closed-loop control algorithms with deterministic 80 MHz execution and CAN 2.0B communication to sensors/actuators. Use Value: Integrated FPU and 12-bit ADC enable precise combustion modeling; MPU and ECC ensure ASIL-B runtime integrity. | Use Scenario: Centralized management of door locks, lighting, wipers, and HVAC in premium passenger vehicles. IC Role / Device Role / Timing Role: System coordinator interfacing with LIN slaves (door modules) and CAN backbone (instrument cluster). Use Value: 12-channel serial interface supports mixed LIN/UART/I²C peripherals; PPG outputs drive LED status indicators directly. |
| 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 with low-latency ADC sampling (1.4 μs), DMA-accelerated data movement, and CAN FD-ready interface. Use Value: 128 KB RAM buffers raw sensor streams; hardware CRC ensures integrity of firmware OTA updates. | Use Scenario: Torque assist computation and motor phase control in brushless DC steering motors. IC Role / Device Role / Timing Role: Safety-critical controller executing torque loop at ≤100 μs intervals using FPU and PPG-driven PWM outputs. Use Value: 48-channel PPG provides fine-grained PWM resolution for motor commutation; TPU and watchdog enforce functional safety timing checks. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar 32-bit 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 floating-point library | Lacks hardware FPU and PPG-based LED drive; requires external driver ICs for indicator outputs | Select when higher clock speed and larger flash are prioritized over integrated analog/motor control features |
| S32K144 | ARM Cortex-M4F core, 112 MHz, 512 KB flash, integrated FPU, but only 2 CAN channels and no sub-oscillator RTC | No built-in 32 kHz RTC calibration path; relies on external crystal or software compensation | Prefer when ARM ecosystem tooling and AUTOSAR OS compatibility outweigh need for dual-clock RTC and 3rd CAN channel |
Compared with RH850/F1K and S32K144, the CY91F526DSCPMC-GTE1 uniquely combines hardware FPU, 3-CAN, sub-oscillator RTC with calibration, and PPG-based LED drive in a single 80-pin LQFP package-enabling compact, ASIL-B-compliant designs without external timing or driver components.
Availability
CY91F526DSCPMC-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 CY91F526DSCPMC-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 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 automotive applications demanding ASIL-B compliance, functional safety, and high-integration analog/motor control peripherals.
FAQ
What is the maximum operating temperature range for CY91F526DSCPMC-GTE1?
The CY91F526DSCPMC-GTE1 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 ADC, CAN, and RTC, ensuring reliability in under-hood automotive environments.
Does CY91F526DSCPMC-GTE1 support CAN FD?
No, CY91F526DSCPMC-GTE1 implements CAN 2.0B protocol only, supporting data rates up to 1 Mbps with standard 11-bit identifiers. It does not include CAN FD framing, bit-rate switching, or extended data length capabilities. For CAN FD applications, consider Infineon's newer AURIX™ TC3xx series.
How is the 1024+64 KB flash memory organized?
The flash consists of 1024 KB main program memory and 64 KB dedicated WorkFlash for data storage. Both regions support ECC error correction, sector erase, and read-while-write operation. WorkFlash is optimized for frequent rewrites (e.g., calibration tables), while main flash is intended for firmware code with longer endurance cycles.
Is on-chip debug supported, and what interface is used?
Yes, CY91F526DSCPMC-GTE1 includes on-chip debug (OCD) support via JTAG interface compliant with IEEE 1149.1. Debug access enables full visibility into CPU registers, memory, and peripheral states during development and validation, and supports real-time trace with compatible debug probes.
CY91F526DSCPMC-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:
- 1.0625MB (1.0625M x 8)
- Program Memory Type:
- FLASH
- EEPROM Size:
- 64K x 8
- RAM Size:
- 136K 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:
CY91F526DSCPMC-GTE1 FAQ
1.How can I place an order for CY91F526DSCPMC-GTE1 through Aetrix?
Please submit a Request for Quotation (RFQ) for CY91F526DSCPMC-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 CY91F526DSCPMC-GTE1 reliable?
The price and inventory of CY91F526DSCPMC-GTE1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for CY91F526DSCPMC-GTE1 is usually 5 days.
3.What payment methods are accepted for CY91F526DSCPMC-GTE1?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for CY91F526DSCPMC-GTE1 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for CY91F526DSCPMC-GTE1?
CY91F526DSCPMC-GTE1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your CY91F526DSCPMC-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 CY91F526DSCPMC-GTE1?
For technical support, including CY91F526DSCPMC-GTE1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your CY91F526DSCPMC-GTE1 requirements.
6.How does Aetrix verify that CY91F526DSCPMC-GTE1 is sourced from the original manufacturer or authorized distributors?
All CY91F526DSCPMC-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 CY91F526DSCPMC-GTE1 meets industry standards.
7.What is the process for return or replacement of CY91F526DSCPMC-GTE1?
All CY91F526DSCPMC-GTE1 units undergo pre-shipment inspection (PSI). If there is an issue with CY91F526DSCPMC-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 CY91F526DSCPMC-GTE1 part is unused and in its original packaging.
Return procedure for CY91F526DSCPMC-GTE1:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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