My Inquiry
My Account
Infineon Technologies CY91F579CHSPMC-GSE1
- Part No.:
- CY91F579CHSPMC-GSE1
- Manufacturer:
- Infineon Technologies
- Category:
- Microcontrollers
- Package:
- 144-LQFP
- Datasheet:
-
CY91F579CHSPMC-GSE1.pdf
- Description:
- IC MCU 32B 2.0625MB FLSH 144LQFP
- Quantity:
- Payment:
- Shipping:
Inventory:2,021
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
CY91F579CHSPMC-GSE1 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 CY91F579CHSPMC-GSE1 datasheet, CY91F579CHSPMC-GSE1 pinout, CY91F579CHSPMC-GSE1 application, or CY91F579CHSPMC-GSE1 equivalent, key selection criteria include its LQFP-144 package, dual-clock supervision, hardware FPU (IEEE 754), memory protection unit (MPU), and support for sub-32 kHz RTC operation in automotive temperature range.
Technical Context
The CY91F579CHSPMC-GSE1 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 a PLL clock multiplier (1×–20×) enabling 80 MHz operation from a 4 MHz crystal, plus built-in SSCG for jitter reduction.
Peripheral subsystems include three C-CAN controllers (up to 1 Mbps), six LIN-UART channels compliant with LIN 2.1, four multi-protocol serial interfaces (UART/CSIO/LIN-UART/I²C), and a 24-channel PPG timer suite supporting motor control and PWM generation with 8/10-bit resolution.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| CPU Core | FR81S 32-bit RISC with 5-stage pipeline, 16 GP registers, IEEE 754 FPU, and MPU with 8 protection areas |
| Max Clock Speed | 80 MHz (achieved via PLL ×20 from 4 MHz crystal; enables 12.5 ns instruction cycle) |
| Memory | 2048 + 64 KB program flash, 64 KB data flash (WorkFlash), 128 KB main RAM + 16 KB backup RAM |
| Analog Peripherals | 40-channel 10-bit SAR ADC (3 μs conversion), 2-channel 8-bit R-2R DAC, real-time clock with sub-oscillator support |
| Communication | 3× C-CAN (1 Mbps), 6× LIN-UART (LIN 2.1), 4× multi-protocol serial (UART/CSIO/LIN/I²C), DMA with 16 channels |
| Package & Power | LQFP-144, 5 V/3.3 V selectable I/O (via VCCE), 5 V main supply, internal 1.2 V regulator, -40°C to +125°C operating range |
Pinout & Package
This device is housed in a 144-pin LQFP package (10 mm × 10 mm, 0.5 mm pitch) with exposed thermal pad. Pin functions are defined across four power domains: VCC5 (5 V core), VCCE (5 V/3.3 V I/O), VSS (ground), and dedicated clock/reset pins.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| P000–P017, P020–P027, P030–P036 | I/O Port Group A/B/C | Configurable GPIO with alternate functions including UART, CAN, LIN, I²C, and PPG outputs; supports pseudo-open-drain on I²C lines |
| P040–P047 | External Bus Interface | 22-bit address / 16-bit data bus pins; VCCE-selectable voltage level (5 V or 3.3 V) for compatibility with legacy peripherals |
| P050–P057 | Clock & Reset | XTAL1/XTAL2 (4 MHz main oscillator), SUBCLK (32 kHz sub-oscillator), RESET#, NMI#, WDTIN, and CLKOUT |
| P060–P067 | Analog & Special Function | ADC input channels (AN0–AN39), DAC outputs (DA0/DA1), RTC battery backup (VBAT), and calibration reference (VREF) |
Key Features
| Feature | Design Value |
|---|---|
| Dual Clock Supervision | Detects failure of 4 MHz main or 32 kHz sub-oscillator and automatically switches to CR oscillator to maintain RTC and basic timing |
| Hardware Memory Protection | MPU enforces privilege/user mode access control across eight configurable memory regions, preventing unintended code/data corruption |
| Integrated LIN 2.1 Stack | Dedicated LIN-UART modules with synch break detection/generation, frame error handling, and baud rate generator eliminate external transceiver dependency |
| Motor Control Ready | 24-channel PPG + 6-channel stepping motor controller with back-EMF sensing via shared ADC inputs enables closed-loop brushless motor drive |
| Low-Power Flexibility | Four operational modes (Sleep/Stop/Watch/Sub RUN) with selective peripheral gating and wake-up via external interrupt or RTC alarm |
Applications
| Engine Control Unit (ECU) | Body Control Module (BCM) |
|---|---|
Use Scenario: Real-time management of fuel injection timing, ignition spark advance, and throttle position feedback in gasoline engines. IC Role / Device Role / Timing Role: Primary MCU executing deterministic control loops with <12.5 ns instruction cycle, synchronized to crankshaft position sensor signals via input capture. Use Value: Integrated 40-channel ADC and 24-channel PPG enable direct sensor interfacing and high-resolution PWM for injector drivers without external signal conditioning. | Use Scenario: Centralized control of door locks, window lifts, lighting sequences, and HVAC fan speed in passenger vehicles. IC Role / Device Role / Timing Role: System coordinator communicating over CAN backbone and LIN subnets to distributed actuators and sensors. Use Value: Three independent CAN controllers and six LIN-UART channels allow concurrent communication with multiple ECUs while maintaining ISO 11898 and LIN 2.1 compliance. |
| Electric Power Steering (EPS) | Advanced Driver Assistance Systems (ADAS) Sensor Hub |
Use Scenario: Closed-loop torque assist control using motor current feedback, vehicle speed, and steering angle inputs. IC Role / Device Role / Timing Role: Safety-critical MCU running ASIL-B software with hardware FPU for real-time PID computation and MPU-enforced memory isolation. Use Value: Built-in 128 KB RAM and 2048 KB flash support dual-core lockstep emulation and firmware rollback, meeting ISO 26262 functional safety requirements. | Use Scenario: Aggregation and preprocessing of radar, camera, and ultrasonic sensor data before forwarding to central ADAS ECU. IC Role / Device Role / Timing Role: Peripheral interface hub managing time-synchronized sampling across multiple analog and digital sensors via DMA-triggered ADC and PPG capture. Use Value: 16-channel DMA controller with simultaneous channel activation ensures zero-latency data transfer from 40 ADC channels to RAM, avoiding CPU bottlenecks. |
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 e200z0 core, 512 KB flash, no integrated LIN, requires external transceivers | Lacks native LIN 2.1 support and integrated stepping motor controller | Prefer when leveraging existing Power Architecture toolchain and CAN-only networks dominate |
| RA6T2 | Arm Cortex-M33 core, 1 MB flash, 256 KB RAM, 2x CAN FD, no built-in stepping motor controller | Higher flash/RAM but lacks dedicated motor control peripherals and sub-32 kHz RTC | Choose for CAN FD upgrade path and Arm ecosystem compatibility, not for cost-sensitive stepper-driven systems |
Compared with SPC560P50L5 and RA6T2, CY91F579CHSPMC-GSE1 delivers higher integration for LIN-based body electronics and motor control, with lower BOM count due to on-chip stepping motor drivers and LIN protocol acceleration-critical for cost-sensitive automotive Tier 2 suppliers.
Availability
CY91F579CHSPMC-GSE1 is available at Aetrix Electronics and suitable for engine control units, body control modules, electric power steering systems, and ADAS sensor hubs requiring stable component supply across extended automotive temperature ranges and long production lifecycles.
Supply support for CY91F579CHSPMC-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 electronics, and security solutions, with global R&D and manufacturing infrastructure.
The CY91570 series was developed by Cypress (acquired by Infineon in 2020) specifically for automotive real-time control applications demanding high reliability, functional safety readiness, and mixed-signal integration in harsh environments.
FAQ
What is the maximum ambient temperature rating for CY91F579CHSPMC-GSE1?
The device is qualified for operation from -40°C to +125°C ambient temperature per AEC-Q100 Grade 1 specifications. This rating applies to the full LQFP-144 package under continuous operation with proper PCB thermal design and VCCE/VCC5 decoupling.
Does CY91F579CHSPMC-GSE1 support CAN FD?
No. The device integrates three C-CAN controllers compliant with ISO 11898-1:2003 (Classical CAN only), supporting bit rates up to 1 Mbps. It does not implement CAN FD features such as flexible data-rate or extended data length frames.
Can the built-in D/A converter drive external analog circuits directly?
Yes. The two 8-bit R-2R DAC outputs (DA0/DA1) provide rail-to-rail voltage output referenced to VDDA, capable of sourcing/sinking ±2 mA. They are intended for direct connection to op-amp inputs or low-impedance analog control points without external buffering in most automotive sensor calibration applications.
Is the FR81S CPU binary-compatible with earlier Cypress FR-family MCUs?
Yes. The FR81S core maintains full instruction set compatibility with the FR family, allowing reuse of existing assembler source code and toolchains. However, enhanced pipeline depth and new instructions (e.g., bit search, FPU ops) require updated compiler support for full performance utilization.
CY91F579CHSPMC-GSE1 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Infineon Technologies
- Package/Case:
- 144-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:
- 111
- 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:
CY91F579CHSPMC-GSE1 FAQ
1.How can I place an order for CY91F579CHSPMC-GSE1 through Aetrix?
Please submit a Request for Quotation (RFQ) for CY91F579CHSPMC-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 CY91F579CHSPMC-GSE1 reliable?
The price and inventory of CY91F579CHSPMC-GSE1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for CY91F579CHSPMC-GSE1 is usually 5 days.
3.What payment methods are accepted for CY91F579CHSPMC-GSE1?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for CY91F579CHSPMC-GSE1 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for CY91F579CHSPMC-GSE1?
CY91F579CHSPMC-GSE1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your CY91F579CHSPMC-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 CY91F579CHSPMC-GSE1?
For technical support, including CY91F579CHSPMC-GSE1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your CY91F579CHSPMC-GSE1 requirements.
6.How does Aetrix verify that CY91F579CHSPMC-GSE1 is sourced from the original manufacturer or authorized distributors?
All CY91F579CHSPMC-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 CY91F579CHSPMC-GSE1 meets industry standards.
7.What is the process for return or replacement of CY91F579CHSPMC-GSE1?
All CY91F579CHSPMC-GSE1 units undergo pre-shipment inspection (PSI). If there is an issue with CY91F579CHSPMC-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 CY91F579CHSPMC-GSE1 part is unused and in its original packaging.
Return procedure for CY91F579CHSPMC-GSE1:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
CY91F579CHSPMC-GSE1 Tags
-
ATTINY4-TSHR
Microchip Technology
-
ATTINY10-TSHR
Microchip Technology
-
ATTINY10-TS8R
Microchip Technology
-
ATTINY202-SSNR
Microchip Technology
-
ATTINY202-SSFR
Microchip Technology
-
ATTINY402-SSNR
Microchip Technology
-
PIC16F15213T-I/MF
Microchip Technology
-
PIC16F15213-E/MF
Microchip Technology
-
PIC10F200T-I/OT
Microchip Technology
-
ATTINY412-SSNR
Microchip Technology
-
PIC10F202T-I/OT
Microchip Technology
-
ATTINY404-SSNR
Microchip Technology
Tech Hub
Guide to electronic component obsolescence covering EOL risk, PCN/PDN notices, last-time buy planning, replacement options, form-fit-function validation, counterfeit risk and BOM lifecycle management.
18650 battery guide covering lithium-ion cell basics, 3.6V/3.7V voltage, 4.2V charging, mAh and Wh capacity, protected cells, chargers, BMS, series-parallel packs, holders, welding and sourcing checks.…
Hall effect sensor guide covering working principle, linear and digital sensors, Arduino circuits, current sensing, speed detection, automotive applications, A3144 examples, signal filtering and datash…
Product Change Notification guide for electronic components, covering PCN meaning, PCN vs PDN/EOL, common change types, risk levels, form-fit-function review, engineering validation, BOM control, LTB/L…
A practical guide to blend door actuators, covering HVAC function, symptoms, location, AC and heater issues, reset and calibration, replacement cost, electrical diagnosis, compatibility checks, and rep…
Engineering guide to Raspberry Pi alternatives, covering chip-level differences, Orange Pi, ROCK, Jetson, Banana Pi, NanoPi, Compute Module, Pico, GPIO, camera, HAT compatibility, and replacement risks…
Engineering guide to dynamic load response testing for high-current buck converters, covering load step setup, slew rate, Vcore undershoot, overshoot, recovery time, probe location, output capacitors a…
Engineering guide to output capacitor selection for ASIC Vcore rails, covering bulk capacitors, polymer capacitors, MLCC decoupling, DC bias, ESR, ESL, placement, transient response and substitution ri…
Engineering guide to high-current ASIC Vcore rails, covering 12-phase buck architecture, PMBus control, dynamic load testing, output capacitor networks, smart power stage selection, thermal design and …
Voltage regulator guide covering linear, LDO, 7805, Zener, adjustable, buck, VRM and alternator regulators, with design checks, testing methods, troubleshooting and datasheet-based selection.
