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Infineon Technologies CY91F579CMPMC-GSE2
- Part No.:
- CY91F579CMPMC-GSE2
- Manufacturer:
- Infineon Technologies
- Category:
- Microcontrollers
- Package:
- 208-LQFP
- Datasheet:
-
CY91F579CMPMC-GSE2.pdf
- Description:
- IC MCU 32B 2.0625MB FLSH 208LQFP
- Quantity:
- Payment:
- Shipping:
Inventory:3,848
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Product details
Overview
CY91F579CMPMC-GSE2 from Infineon Technologies (formerly Cypress) is a 32-bit automotive-grade microcontroller featuring the FR81S CPU core, 2048 + 64 KB program flash, 128 KB main RAM + 16 KB backup RAM, and integrated CAN 2.0B (3 channels), LIN-UART (6 channels), and 40-channel 10-bit ADC. It operates at up to 80 MHz with 5 V/3.3 V I/O flexibility and targets engine control units and body electronics.
For engineers reviewing the CY91F579CMPMC-GSE2 datasheet, CY91F579CMPMC-GSE2 pinout, CY91F579CMPMC-GSE2 application, or CY91F579CMPMC-GSE2 equivalent, key selection criteria include its LQFP-144 package, dual-clock supervision, hardware FPU (IEEE 754), memory protection unit (MPU), and support for sub-RUN low-power mode in harsh automotive environments.
Technical Context
The CY91F579CMPMC-GSE2 implements a Harvard-architecture FR81S RISC core with 5-stage pipeline, 16 general-purpose 32-bit registers, and 16 priority-level interrupt controller. It integrates C-CAN controllers supporting up to 1 Mbps, LIN-UART compliant with LIN 2.1, and a 32-bit free-run timer with input capture/output compare capability.
Its peripheral set includes an 8/10-bit 40-channel ADC (3 μs conversion), dual 8-bit DACs, 24-channel PPG, RTC with sub-oscillator calibration, and LCD controller (4-common × 32-segment). Power management features sleep, stop, watch, and sub-RUN modes with power-on reset and dual LVD detection.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| CPU Core | FR81S 32-bit RISC, 5-stage pipeline, 80 MHz max operation (12.5 ns instruction cycle) |
| Flash Memory | 2048 + 64 KB program flash + 64 KB WorkFlash - supports in-field firmware updates and data logging |
| RAM | 128 KB main RAM + 16 KB backup RAM - retains critical state during stop mode with VBAT |
| ADC | 40-channel, 10-bit successive approximation ADC with 3 μs conversion - suitable for real-time sensor sampling in motor control |
| CAN Channels | 3 × C-CAN controllers, up to 1 Mbps - enables multi-node vehicle network communication with message buffering |
| Package | LQFP-144, 0.5 mm pitch - compatible with standard automotive PCB assembly processes and thermal management |
| Power Supply | 5 V core supply with internal 1.2 V regulator; VCCE-selectable 5 V/3.3 V I/O - simplifies interface to legacy 5 V sensors and modern 3.3 V peripherals |
Pinout & Package
LQFP-144 package with 0.5 mm pitch, 20 × 20 mm body, and exposed thermal pad. Pin functions validated per Infineon Document 002-04725 Rev. *B (Pages 11–13).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VCC5 / VSS5 | Main power / ground | Supplies 5 V core logic and analog blocks; requires local decoupling for noise immunity |
| VCCE | I/O voltage reference | Selects 5 V or 3.3 V for all GPIOs (P010–P017, P020–P027, P030–P036), enabling mixed-voltage system interfacing |
| XIN / XOUT | Main oscillator terminals | Connects 4.0 MHz crystal; PLL multiplies to 80 MHz - primary clock source for CPU and peripherals |
| EXCLK | External clock input | Accepts external clock up to 20 MHz for synchronous peripheral timing or redundancy |
| CAN0TX / CAN0RX | CAN channel 0 differential I/O | Direct connection to ISO 11898-compliant transceiver; supports high-speed CAN with bus fault tolerance |
| AD00–AD39 | Analog input channels | 40 dedicated pins for 10-bit ADC inputs - mapped to internal multiplexer with programmable sampling control |
Key Features
| Feature | Design Value |
|---|---|
| Floating-point unit (FPU) | IEEE 754-compliant 32-bit FPU with 16 registers - accelerates motor control algorithms and sensor fusion without software emulation |
| Memory Protection Unit (MPU) | Eight configurable protection areas with privilege/user mode access control - enforces ASIL-B software partitioning for functional safety |
| Dual-clock supervision | Independent monitoring of 4 MHz main and 32 kHz sub-oscillators with automatic CR clock fallback - ensures RTC continuity and fail-safe clocking |
| Low-power sub-RUN mode | Retains RAM, peripheral clocks, and selected I/O states while reducing current to <100 μA - ideal for always-on vehicle modules |
| Peripheral function relocation | Software-reassignable I/O mapping for UART, CAN, LIN, SPI, and timer functions - increases PCB layout flexibility 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 engines. IC Role / Device Role / Timing Role: Primary control MCU executing closed-loop PID algorithms with deterministic 80 MHz execution and 3 μs ADC sampling. Use Value: Integrated 40-channel ADC, 3× CAN, and hardware FPU enable precise actuator control and sensor data processing within tight timing budgets. | Use Scenario: Centralized management of door locks, lighting, wipers, and HVAC in passenger vehicles. IC Role / Device Role / Timing Role: System coordinator interfacing with LIN slaves (door modules, seat controls) and CAN backbone via three independent C-CAN channels. Use Value: Six LIN-UART channels with built-in baud rate generator and synch-break detection simplify multi-node LIN network implementation without external protocol ICs. |
| Electric Power Steering (EPS) | Advanced Driver Assistance Systems (ADAS) Sensor Hub |
Use Scenario: Torque assist calculation, motor phase commutation, and fault monitoring in brushless EPS motors. IC Role / Device Role / Timing Role: Safety-critical controller with MPU-enforced software separation, watchdog timers, and redundant clock sources meeting ISO 26262 ASIL-B requirements. Use Value: 24-channel PPG, 6-channel stepping motor controller, and 12-channel input capture provide direct motor drive and position feedback without external drivers. | Use Scenario: Aggregation and preprocessing of radar, camera, and ultrasonic sensor data before transmission to central ADAS ECU. IC Role / Device Role / Timing Role: High-bandwidth peripheral hub using HS-SPI (disabled) and multiple CSIO/SPI interfaces to manage heterogeneous sensor interfaces. Use Value: 159 GPIOs (LQFP-208 variant supported), 16-channel DMA, and 128 KB RAM allow concurrent sensor streaming, filtering, and CAN message formatting with minimal CPU load. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar automotive microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TRAVEO™ T2G CYT2B75CADQ0VZT | ARM Cortex-R5F core, 300 MHz, 2 MB flash, 512 KB SRAM, integrated HSM for secure boot | Targets higher ASIL-D systems requiring hardware security and faster real-time response | Choose when cryptographic acceleration, larger memory, or ISO 21434 compliance are mandatory |
| RA6T2 R7FA6T27E3CFP#AA0 | ARM Cortex-M33 core, 200 MHz, 1 MB flash, 256 KB SRAM, integrated encoder interface and PWM timers | Optimized for motor control with advanced motion control IP, no CAN FD or LIN 2.1 native support | Prefer for cost-sensitive industrial motor drives where LIN/CAN 2.1 are not required |
Compared with CY91F579CMPMC-GSE2, TRAVEO™ T2G offers higher performance and security but requires new toolchain adoption, while RA6T2 delivers superior motor control peripherals at lower cost but lacks automotive LIN/CAN integration and functional safety certification out-of-box.
Availability
CY91F579CMPMC-GSE2 is available at Aetrix Electronics and suitable for engine control units, body control modules, electric power steering systems, and automotive instrument clusters requiring stable component supply across extended temperature ranges (−40°C to +125°C).
Supply support for CY91F579CMPMC-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 global semiconductor leader headquartered in Munich, Germany, specializing in power systems, automotive electronics, and security solutions.
The CY91570 series was developed by Cypress (acquired by Infineon in 2020) specifically for automotive and industrial real-time control applications demanding high reliability, integrated analog peripherals, and functional safety readiness.
FAQ
What is the maximum operating junction temperature for CY91F579CMPMC-GSE2?
The device is rated for operation up to +125°C junction temperature under continuous conditions, validated per Infineon's absolute maximum ratings (Document 002-04725 Rev. *B, Section 13.1). Thermal derating applies above +105°C ambient depending on PCB copper area and airflow, and the on-chip temperature sensor (channel AD39) provides real-time monitoring with ±3°C accuracy.
Does CY91F579CMPMC-GSE2 support CAN FD?
No, CY91F579CMPMC-GSE2 implements Classical CAN (C-CAN) compliant with ISO 11898-1:2003, supporting bit rates up to 1 Mbps only. It does not include CAN FD protocol features such as flexible data-rate, extended data length, or CRC enhancements. For CAN FD, consider Infineon's AURIX™ TC3xx family or TRAVEO™ T2G with CAN FD controllers.
How is the 64 KB WorkFlash memory used in firmware development?
WorkFlash is a dedicated 64 KB data flash block electrically erasable and programmable in 128-byte sectors. It is used for non-volatile storage of calibration data, odometer values, error logs, and user configuration parameters - separate from program flash to avoid corruption during firmware updates. Access is controlled via the Flash Control Unit (FCU) with write-protection and erase-suspend capabilities.
Can the FR81S CPU execute code directly from RAM?
Yes, the FR81S supports XIP (execute-in-place) from RAM via the internal bus matrix. Code loaded into main RAM (e.g., for dynamic algorithm updates or safety monitor routines) executes at full 80 MHz speed with zero wait states. This capability is enabled through the Memory Management Unit (MMU) configuration and requires proper vector table remapping to RAM-resident exception handlers.
CY91F579CMPMC-GSE2 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Infineon Technologies
- Package/Case:
- 208-LQFP
- Series:
- FR MB91570
- 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, LCD, LVD, POR, PWM, WDT
- Number of I/O:
- 159
- Program Memory Size:
- 2.0625MB (2.0625M x 8)
- Program Memory Type:
- FLASH
- EEPROM Size:
- 64K x 8
- RAM Size:
- 144K x 8
- Voltage - Supply (Vcc/Vdd):
- 3V ~ 5.5V
- Data Converters:
- A/D 40x8/10b SAR; D/A 2x8b R2R
- Oscillator Type:
- External
- Operating Temperature:
- -40°C ~ 105°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
CY91F579CMPMC-GSE2 FAQ
1.How can I place an order for CY91F579CMPMC-GSE2 through Aetrix?
Please submit a Request for Quotation (RFQ) for CY91F579CMPMC-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 CY91F579CMPMC-GSE2 reliable?
The price and inventory of CY91F579CMPMC-GSE2 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for CY91F579CMPMC-GSE2 is usually 5 days.
3.What payment methods are accepted for CY91F579CMPMC-GSE2?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for CY91F579CMPMC-GSE2 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for CY91F579CMPMC-GSE2?
CY91F579CMPMC-GSE2 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your CY91F579CMPMC-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 CY91F579CMPMC-GSE2?
For technical support, including CY91F579CMPMC-GSE2 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your CY91F579CMPMC-GSE2 requirements.
6.How does Aetrix verify that CY91F579CMPMC-GSE2 is sourced from the original manufacturer or authorized distributors?
All CY91F579CMPMC-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 CY91F579CMPMC-GSE2 meets industry standards.
7.What is the process for return or replacement of CY91F579CMPMC-GSE2?
All CY91F579CMPMC-GSE2 units undergo pre-shipment inspection (PSI). If there is an issue with CY91F579CMPMC-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 CY91F579CMPMC-GSE2 part is unused and in its original packaging.
Return procedure for CY91F579CMPMC-GSE2:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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