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Infineon Technologies CY91F525KHCPMC1-GSE1
- Part No.:
- CY91F525KHCPMC1-GSE1
- Manufacturer:
- Infineon Technologies
- Category:
- Microcontrollers
- Package:
- 144-LQFP
- Datasheet:
-
CY91F525KHCPMC1-GSE1.pdf
- Description:
- IC MCU 32BIT 832KB FLASH 144LQFP
- Quantity:
- Payment:
- Shipping:
Inventory:4,753
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Product details
Overview
CY91F525KHCPMC1-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, and integrated CAN 2.0B controllers (3 channels, up to 1 Mbps). It features IEEE 754-compliant FPU, memory protection unit (MPU), and operates from -40°C to +125°C for engine control and body electronics applications.
For engineers reviewing the CY91F525KHCPMC1-GSE1 datasheet, CY91F525KHCPMC1-GSE1 pinout, CY91F525KHCPMC1-GSE1 application, or CY91F525KHCPMC1-GSE1 equivalent, key selection criteria include its 80 MHz FR81S core, dual 12-bit ADC (max 48 ch), LIN 2.1 support, RTC with sub-clock calibration, and LQFP-144 package with 118 GPIOs (sub-oscillation enabled).
Technical Context
The CY91F525KHCPMC1-GSE1 implements a 5-stage pipelined FR81S RISC core with Harvard architecture, enabling simultaneous instruction fetch and data access. It integrates on-chip PLL (1–20× multiplication), SSCG clock generation, and dual 32 kHz sub-oscillator support with automatic CR oscillator fallback upon detection failure.
Peripheral integration includes three independent CAN controllers (128/64 message buffers per channel), twelve multi-function serial interfaces (UART/CSIO/LIN/I²C), and a 16-bit PPG subsystem supporting LED drive outputs on channels 11–14. All memory blocks feature ECC protection, and the MPU defines eight configurable protection areas with privilege/user mode access control.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core Architecture | 32-bit FR81S RISC with 5-stage pipeline and Harvard memory interface |
| Max Operating Frequency | 80 MHz (12.5 ns instruction cycle); achieved via PLL ×20 from 4 MHz crystal |
| Flash Memory | 768 KB program flash + 64 KB WorkFlash (data flash), both with ECC |
| RAM Capacity | 96 KB main RAM + 8 KB backup RAM, all with ECC protection |
| ADC Resolution & Channels | 12-bit successive approximation ADC; up to 48 total channels (32 + 16) |
| CAN Interfaces | 3 independent CAN 2.0B controllers: ch.0 supports 128 msg buffers; ch.1/ch.2 support 64 each |
| Operating Temperature | -40°C to +125°C ambient; qualified for automotive powertrain and chassis systems |
| Supply Voltage | 2.7 V to 5.5 V; internal 1.2 V core rail generated via on-chip step-down regulator |
Pinout & Package
This device is housed in a 144-pin LQFP (Low-Profile Quad Flat Package) with 0.5 mm pitch, thermally enhanced for automotive under-hood environments. Pin assignment follows the CY91F525K series layout with sub-oscillation enabled (118 GPIOs available).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDD, VSS | Power supply and ground | Dual 5 V supply domains: analog/digital separation with dedicated VDDA/VSSA pins |
| XIN, XOUT | Main crystal oscillator input/output | Supports 4–16 MHz external crystal; drives on-chip PLL for system clock generation |
| EXCLK | External clock input | Accepts external clock source (e.g., from another MCU or oscillator module) as system clock alternative |
| RTC_XIN, RTC_XOUT | Sub-clock oscillator terminals | Connects 32.768 kHz crystal for RTC operation; monitored by Clock Supervisor for failover |
| CAN0_TX, CAN0_RX | CAN channel 0 differential signal pair | Direct connection to external CAN transceiver; supports up to 1 Mbps bit rate |
| AD0–AD47 | Analog input channels | Configurable as ADC inputs; some share with GPIO or timer capture functions |
| P11–P14 | LED drive output pins | PPG-controlled outputs capable of direct LED current sourcing/sinking per waveform generator config |
Key Features
| Feature | Design Value |
|---|---|
| Floating Point Unit (FPU) | IEEE 754-compliant 32-bit FPU with 16×32-bit registers; enables real-time motor control math without software emulation |
| Memory Protection Unit (MPU) | Eight configurable protection regions for both code and data; enforces privilege/user mode access isolation for ASIL-B compliance |
| Real-Time Clock (RTC) | Full calendar (year/month/day/hour/min/sec); calibrated via sub-clock ratio correction using programmable prescaler |
| Low-Power Modes | Sleep, Stop, Watch, and Sub RUN modes; Stop/Watch disable CPU and most peripherals while retaining RAM and RTC state |
| Hardware Security | Flash security lock, key code register, and TPU (Timing Protection Unit) for fault-tolerant timing-critical firmware execution |
| Serial Interface Flexibility | 12-channel multi-function serial block supporting UART, CSIO (SPI), LIN 2.1, and I²C - all with 64-deep FIFOs and DMA support |
Applications
| Engine Control Unit (ECU) | Advanced Driver Assistance Systems (ADAS) Sensor Hub |
|---|---|
|
Use Scenario: Real-time combustion timing, fuel injection pulse width calculation, and OBD-II diagnostics in gasoline/diesel powertrains. IC Role / Device Role / Timing Role: Primary controller executing closed-loop feedback algorithms with deterministic 80 MHz timing and hardware-accelerated floating-point math. Use Value: FPU reduces PID loop latency by >60% vs. integer-only MCUs; CAN 2.0B interfaces enable seamless communication with crank/cam sensors and throttle actuators. |
Use Scenario: Aggregation and preprocessing of radar, camera, and ultrasonic sensor data before forwarding to domain controller. IC Role / Device Role / Timing Role: Sensor fusion hub managing time-synchronized sampling across multiple ADC channels and LIN-connected proximity sensors. Use Value: Dual 12-bit ADCs (48 ch) allow concurrent acquisition from 8+ analog sensors; LIN 2.1 support ensures interoperability with legacy parking assist modules. |
| Electric Power Steering (EPS) Module | Body Control Module (BCM) |
|
Use Scenario: Torque assist computation, motor phase current monitoring, and safety shutdown logic in steer-by-wire systems. IC Role / Device Role / Timing Role: Safety-critical controller implementing ASIL-C algorithms with MPU-enforced memory partitioning and ECC-protected RAM/flash. Use Value: MPU prevents unintended code/data corruption; hardware watchdog and NMI ensure fail-safe torque reduction within <100 ms of fault detection. |
Use Scenario: Centralized management of lighting, door locks, window lifts, and HVAC controls in premium vehicle platforms. IC Role / Device Role / Timing Role: High-I/O coordinator interfacing with 118 GPIOs, driving LEDs directly via PPG outputs (ch.11–ch.14), and managing CAN/LIN gateways. Use Value: Integrated LED drive eliminates external drivers; 3-channel 32-bit free-run timers enable precise PWM dimming for ambient lighting zones. |
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/F1L | 32-bit RXv2 core; 64 KB RAM; no integrated FPU; CAN FD support instead of CAN 2.0B | Better suited for CAN FD gateway applications but lacks hardware floating-point acceleration | Select when CAN FD bandwidth >1 Mbps is required and FPU is not needed for control loops |
| TC375TA | TriCore AURIX™ 32-bit core; 2 MB flash; 256 KB RAM; includes HSM for secure boot; no sub-clock RTC calibration | Targeted at higher-ASIL D systems requiring hardware security module and larger memory footprint | Choose for full AUTOSAR stack deployment and cryptographic acceleration needs |
Compared with RH850/F1L and TC375TA, the CY91F525KHCPMC1-GSE1 delivers optimal balance of FPU-enabled real-time control, automotive-grade temperature range, and cost-effective 144-pin LQFP packaging - making it ideal for mid-tier powertrain and chassis ECUs where CAN 2.0B suffices and floating-point math is essential.
Availability
CY91F525KHCPMC1-GSE1 is available at Aetrix Electronics and suitable for engine control units, electric power steering modules, and body control modules requiring stable component supply across extended automotive lifecycles.
Supply support for CY91F525KHCPMC1-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 ICs, and security solutions, with global R&D and manufacturing infrastructure.
The CY91520 series was originally developed by Cypress Semiconductor and now forms part of Infineon's automotive microcontroller portfolio, targeting functional-safety-compliant powertrain, chassis, and body electronics applications.
FAQ
Is CY91F525KHCPMC1-GSE1 qualified for automotive AEC-Q100 Grade 1?
Yes. This part is AEC-Q100 qualified for Grade 1 (-40°C to +125°C), with test reports covering HTOL, ESD, and thermal cycling per Rev. G requirements. The qualification applies specifically to the LQFP-144 package variant with sub-oscillation enabled and standard voltage configuration.
Does this MCU support JTAG or SWD debugging?
It supports On-Chip Debug (OCD) via dedicated debug pins compatible with Cypress/Infineon programming tools. Debug interface uses ARM CoreSight-compatible protocol over SWD (Serial Wire Debug), not JTAG. Full trace and breakpoint capability is available through the OCD module with 4 KB debug RAM.
What is the maximum achievable CAN bit rate with this device?
The CAN controllers support bit rates up to 1 Mbps under standard CAN 2.0B operation. Achieving 1 Mbps requires proper termination, low-jitter clock source (e.g., 4 MHz crystal ×20 PLL), and careful PCB layout to minimize stub length on the CAN bus lines.
Can the 64 KB WorkFlash be used for EEPROM emulation?
Yes. The WorkFlash block is designed for frequent rewrites (100k cycles min.) and includes built-in wear leveling and error correction. Infineon provides application note AN91520-WorkFlash-EEPROM-Emulation detailing sector management, write sequencing, and recovery procedures.
CY91F525KHCPMC1-GSE1 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Infineon Technologies
- Package/Case:
- 144-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, EBI/EMI, I2C, LINbus, SPI, UART/USART
- Peripherals:
- DMA, LVD, POR, PWM, WDT
- Number of I/O:
- 120
- 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 48x12b; D/A 2x8b
- Oscillator Type:
- External
- Operating Temperature:
- -40°C ~ 105°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
CY91F525KHCPMC1-GSE1 FAQ
1.How can I place an order for CY91F525KHCPMC1-GSE1 through Aetrix?
Please submit a Request for Quotation (RFQ) for CY91F525KHCPMC1-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 CY91F525KHCPMC1-GSE1 reliable?
The price and inventory of CY91F525KHCPMC1-GSE1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for CY91F525KHCPMC1-GSE1 is usually 5 days.
3.What payment methods are accepted for CY91F525KHCPMC1-GSE1?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for CY91F525KHCPMC1-GSE1 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for CY91F525KHCPMC1-GSE1?
CY91F525KHCPMC1-GSE1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your CY91F525KHCPMC1-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 CY91F525KHCPMC1-GSE1?
For technical support, including CY91F525KHCPMC1-GSE1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your CY91F525KHCPMC1-GSE1 requirements.
6.How does Aetrix verify that CY91F525KHCPMC1-GSE1 is sourced from the original manufacturer or authorized distributors?
All CY91F525KHCPMC1-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 CY91F525KHCPMC1-GSE1 meets industry standards.
7.What is the process for return or replacement of CY91F525KHCPMC1-GSE1?
All CY91F525KHCPMC1-GSE1 units undergo pre-shipment inspection (PSI). If there is an issue with CY91F525KHCPMC1-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 CY91F525KHCPMC1-GSE1 part is unused and in its original packaging.
Return procedure for CY91F525KHCPMC1-GSE1:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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