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Infineon Technologies CY91F585ASHPMC1-GTE1
- Part No.:
- CY91F585ASHPMC1-GTE1
- Manufacturer:
- Infineon Technologies
- Category:
- Microcontrollers
- Package:
- 64-LQFP
- Datasheet:
-
CY91F585ASHPMC1-GTE1.pdf
- Description:
- IC MCU 32BIT 576KB FLASH 64LQFP
- Quantity:
- Payment:
- Shipping:
Inventory:3,673
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Product details
Overview
CY91F585ASHPMC1-GTE1 from Infineon Technologies (formerly Cypress) is a 32-bit FR81S microcontroller designed for automotive motor control systems. It features a 128 MHz CPU, 512+64 KB program flash, 48 KB main RAM, 8 KB backup RAM, and integrated CAN, LIN, FlexRay, and 12-bit ADC (17-channel). It operates on a single 5 V supply with internal 1.2 V regulation and targets electric power steering and inverter control units.
For engineers reviewing the CY91F585ASHPMC1-GTE1 datasheet, CY91F585ASHPMC1-GTE1 pinout, CY91F585ASHPMC1-GTE1 application, or CY91F585ASHPMC1-GTE1 equivalent, key selection criteria include LQFP-64 package compatibility, 1-channel CAN + 2-channel serial interface count, 17-channel ADC resolution, and automotive-grade low-power stop/watch modes.
Technical Context
The CY91F585ASHPMC1-GTE1 implements the FR81S 32-bit RISC core with 5-stage pipeline, IEEE 754-compliant FPU, and MPU supporting eight protection areas across privilege/user modes. Its Harvard architecture enables simultaneous instruction and data access.
It integrates dual-clock domain operation: main oscillator (4–20 MHz) with PLL up to 32× multiplication (128 MHz), plus CR oscillation (100 kHz, trimmable) with standby oscillation stop support. Peripheral timing is synchronized via dedicated baud rate generators for UART, CSIO, LIN, and I²C.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| CPU Core | FR81S 32-bit RISC, 5-stage pipeline, 128 MHz max frequency (4 MHz × 32 PLL) |
| Flash Memory | 512 KB program + 64 KB WorkFlash - supports firmware updates and parameter storage |
| RAM | 48 KB main RAM + 8 KB backup RAM - retains critical state during low-power modes |
| ADC | 12-bit successive approximation, 17 channels, 1 µs conversion - suitable for real-time current/voltage sensing |
| Serial Interfaces | 2-channel multi-function (UART/CSIO/LIN/I²C), 1-channel CAN 2.0B - meets ASAM MCAL stack requirements |
| FlexRay | 1 unit (ch.A/ch.B), 128 message buffers, 8 KB message RAM - compliant with FlexRay v2.1 for deterministic networking |
| Package | LQFP-64, 0.5 mm pitch - optimized for compact automotive ECU PCB layouts |
| Supply | Single 5 V input, internal 1.2 V core regulator - simplifies power design and reduces external components |
Pinout & Package
LQFP-64 package with exposed thermal pad; 10 × 10 mm body, 1.6 mm height, JEDEC standard footprint.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDD, VSS | Power supply and ground | 5 V digital supply pins; multiple pairs ensure stable core and I/O rail decoupling |
| XTAL1, XTAL2 | Main crystal oscillator input/output | Supports 4–20 MHz quartz; anomaly detection switches to CR oscillator on failure |
| CRIN, CROUT | CR oscillator terminals | 100 kHz RC oscillator with trimming capability; supports stop-mode clock retention |
| RESET | Active-low reset input | Asynchronous reset with internal pull-up; compatible with external watchdog assertion |
| TXD0/RXD0 | UART channel 0 I/O | Dedicated full-duplex interface with 64-byte FIFOs and DMA support |
| CAN_TX0/CAN_RX0 | CAN controller channel 0 differential I/O | Direct connection to external CAN transceiver; supports 1 Mbps data rate |
| AD00–AD16 | Analog input channels | 17-pin group for 12-bit ADC; includes dedicated reference voltage inputs (VREFH/VREFL) |
| DA0 | Digital-to-analog output | 10-bit DAC output for analog feedback or calibration signal generation |
Key Features
| Feature | Design Value |
|---|---|
| Floating-point unit (FPU) | IEEE 754-compliant 32-bit FPU with 16-register file - accelerates motor control algorithms (FOC, PID) |
| Memory protection unit (MPU) | Eight configurable protection regions with privilege/user mode access control - enforces ASIL-B software partitioning |
| Low-power modes | Sleep/Stop/Watch modes with CR oscillator retention - enables <10 µA standby current in Stop mode |
| On-chip debug (OCD) | Built-in OCD unit with SWD/JTAG interface - supports real-time trace and non-intrusive breakpoint debugging |
| Clock supervision | Hardware-based main oscillator anomaly detection with automatic CR fallback - meets ISO 26262 fault handling requirements |
| DMA controller | 8-channel DMA with peripheral request arbitration - offloads CPU during ADC sampling and serial transfers |
Applications
| Electric Power Steering (EPS) | Automotive Inverter Control |
|---|---|
Use Scenario: Real-time torque assist calculation and motor phase current regulation in column-assist EPS systems. IC Role / Device Role / Timing Role: Main control MCU executing FOC algorithm at 10 kHz loop rate with synchronized 12-bit ADC sampling and PWM generation. Use Value: Integrated 128 MHz FR81S core + FPU delivers deterministic 2.5 µs vector math latency; 17-channel ADC captures all three-phase currents and DC-link voltage simultaneously. | Use Scenario: Closed-loop control of 3-phase BLDC motors in HVAC blowers and radiator fans. IC Role / Device Role / Timing Role: System-on-chip controller managing gate driver timing, fault monitoring, and CAN diagnostics communication. Use Value: Single 5 V supply and internal 1.2 V regulator reduce BOM cost; 1-channel CAN enables integration into vehicle diagnostic networks without external protocol bridge. |
| Brake-by-Wire Actuation | Onboard Charger (OBC) Control |
Use Scenario: Redundant actuator control in electro-hydraulic brake modules requiring functional safety compliance. IC Role / Device Role / Timing Role: Safety-critical MCU running ASIL-B software with MPU-enforced memory isolation and CRC-protected flash. Use Value: Dual-clock domain (main + CR) and hardware watchdog provide fail-safe clock monitoring per ISO 26262; 8 KB backup RAM preserves fault logs across resets. | Use Scenario: Digital control of AC/DC and DC/DC stages in bidirectional OBCs for EVs. IC Role / Device Role / Timing Role: High-precision timing controller coordinating interleaved PFC and LLC resonant converter stages. Use Value: 16-bit reload timers and waveform generator support precise dead-time insertion and adaptive frequency modulation; FlexRay interface enables synchronization with battery management system. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar automotive motor control applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| RH850/F1K | 400 MHz dual-core, 2 MB flash, no integrated FlexRay; requires external transceiver | Targeted at higher-ASIL D systems with complex redundancy; larger footprint and BOM cost | Select when >200 MHz compute throughput and dual-lockstep cores are required for ASIL-D decomposition |
| TC375 | TriCore™ 300 MHz, 4 MB flash, 512 KB RAM, integrated Ethernet TSN; no WorkFlash | Designed for central gateway and domain controller roles; over-specified for standalone motor control | Select when Ethernet connectivity, larger code space, or multi-domain consolidation is needed |
Compared with RH850/F1K and TC375, the CY91F585ASHPMC1-GTE1 offers optimal balance of 128 MHz deterministic performance, integrated FlexRay/CAN/LIN, and automotive-qualified LQFP-64 packaging - making it ideal for cost-sensitive, space-constrained motor control ECUs where mixed-protocol networking is essential.
Availability
CY91F585ASHPMC1-GTE1 is available at Aetrix Electronics and suitable for electric power steering, brake-by-wire actuators, and onboard charger control requiring stable component supply across extended automotive production lifecycles.
Supply support for CY91F585ASHPMC1-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 global semiconductor leader headquartered in Munich, Germany, specializing in power management, automotive, and security solutions with deep expertise in automotive-grade reliability and functional safety.
This device belongs to the CY91580AS Series - a family of FR81S-based 32-bit MCUs engineered specifically for automotive motor control applications demanding high integration, real-time responsiveness, and ISO 26262 compliance.
FAQ
What is the maximum operating temperature range for CY91F585ASHPMC1-GTE1?
The CY91F585ASHPMC1-GTE1 is qualified for operation from −40 °C to +125 °C ambient temperature, meeting AEC-Q100 Grade 2 requirements. This rating applies to the full LQFP-64 package variant and is validated across all specified electrical characteristics including flash endurance, ADC linearity, and PLL stability.
Does CY91F585ASHPMC1-GTE1 support JTAG debugging?
Yes, it supports both JTAG and SWD interfaces via the built-in On-Chip Debug (OCD) unit. The OCD provides real-time trace, hardware breakpoints, and non-intrusive memory access. Pin mapping follows standard ARM Cortex-style SWDIO/SWCLK, with JTAG TDI/TDO/TMS/TCK available on dedicated pins in the LQFP-64 layout.
How is the 64 KB WorkFlash used in firmware updates?
The 64 KB WorkFlash is a dedicated, wear-leveling-capable data flash region separate from program flash. It stores calibration parameters, runtime logs, and encrypted firmware update images. It supports erase granularity of 1 KB sectors and write endurance of 100,000 cycles, enabling robust OTA update mechanisms without disrupting main application execution.
Can the FlexRay controller operate independently of CAN and LIN peripherals?
Yes, the FlexRay controller operates autonomously using its own 8 KB message RAM and dedicated slot/cycle counter logic. It does not share clock sources, buffers, or interrupt vectors with CAN or LIN modules. Each protocol stack runs on independent hardware resources, allowing concurrent operation at full bandwidth - e.g., FlexRay for chassis control while CAN handles diagnostics and LIN manages sensors.
CY91F585ASHPMC1-GTE1 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Infineon Technologies
- Package/Case:
- 64-LQFP
- Series:
- FR MB91580
- Packaging:
- Tray
- Product Status:
- Obsolete
- Programmable:
- Not Verified
- Core Processor:
- FR81S
- Core Size:
- 32-Bit Single-Core
- Speed:
- 128MHz
- Connectivity:
- CANbus, CSIO, I2C, LINbus, SPI, UART/USART
- Peripherals:
- DMA, LVD, POR, PWM, WDT
- Number of I/O:
- -
- Program Memory Size:
- 576KB (576K x 8)
- Program Memory Type:
- FLASH
- EEPROM Size:
- 64K x 8
- RAM Size:
- 56K x 8
- Voltage - Supply (Vcc/Vdd):
- 3.7V ~ 5.5V
- Data Converters:
- A/D 24x12b; D/A 1x10b
- Oscillator Type:
- External
- Operating Temperature:
- -40°C ~ 125°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
CY91F585ASHPMC1-GTE1 FAQ
1.How can I place an order for CY91F585ASHPMC1-GTE1 through Aetrix?
Please submit a Request for Quotation (RFQ) for CY91F585ASHPMC1-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 CY91F585ASHPMC1-GTE1 reliable?
The price and inventory of CY91F585ASHPMC1-GTE1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for CY91F585ASHPMC1-GTE1 is usually 5 days.
3.What payment methods are accepted for CY91F585ASHPMC1-GTE1?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for CY91F585ASHPMC1-GTE1 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for CY91F585ASHPMC1-GTE1?
CY91F585ASHPMC1-GTE1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your CY91F585ASHPMC1-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 CY91F585ASHPMC1-GTE1?
For technical support, including CY91F585ASHPMC1-GTE1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your CY91F585ASHPMC1-GTE1 requirements.
6.How does Aetrix verify that CY91F585ASHPMC1-GTE1 is sourced from the original manufacturer or authorized distributors?
All CY91F585ASHPMC1-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 CY91F585ASHPMC1-GTE1 meets industry standards.
7.What is the process for return or replacement of CY91F585ASHPMC1-GTE1?
All CY91F585ASHPMC1-GTE1 units undergo pre-shipment inspection (PSI). If there is an issue with CY91F585ASHPMC1-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 CY91F585ASHPMC1-GTE1 part is unused and in its original packaging.
Return procedure for CY91F585ASHPMC1-GTE1:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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