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Infineon Technologies CY91F585AMHPMC-GTE1
- Part No.:
- CY91F585AMHPMC-GTE1
- Manufacturer:
- Infineon Technologies
- Category:
- Microcontrollers
- Package:
- 100-LQFP
- Datasheet:
-
CY91F585AMHPMC-GTE1.pdf
- Description:
- IC MCU 32BIT 576KB FLASH 100LQFP
- Quantity:
- Payment:
- Shipping:
Inventory:2,516
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Product details
Overview
CY91F585AMHPMC-GTE1 from Infineon Technologies (formerly Cypress) is a 32-bit FR81S RISC microcontroller designed for automotive motor control systems. It features a 128 MHz CPU clock (4 MHz crystal ×32 PLL), 512+64 KB program flash, 48 KB main RAM, 8 KB backup RAM, and integrated CAN 2.0B (2 channels), FlexRay v2.1 (1 unit), and LIN 2.1 interfaces. Used in electric power steering (EPS) and inverter control units.
For engineers reviewing the CY91F585AMHPMC-GTE1 datasheet, CY91F585AMHPMC-GTE1 pinout, CY91F585AMHPMC-GTE1 application, or CY91F585AMHPMC-GTE1 equivalent, key selection criteria include its dual CAN/FlexRay coexistence, on-chip FPU (IEEE754), MPU with 8 protection areas, 12-bit ADC (23 channels @ 1 µs), and LQFP-100 package with 76 GPIOs including 8 I²C pseudo-open-drain ports.
Technical Context
This MCU implements the FR81S core - a 5-stage pipelined, load/store 32-bit RISC architecture with 16×32-bit general-purpose registers, 16-bit fixed-length instructions, and hardware multiplier (3-cycle 16-bit signed multiply). It supports privilege/user modes with built-in MPU and IEEE754-compliant FPU.
Peripherals include dual CAN controllers (1 Mbps, 64-message buffers each), FlexRay v2.1 controller (128-message RAM, slot/cycle/channel filtering), 4-channel multi-function serial interface (UART/CSIO/LIN/I²C), and 3×12-bit ADC units with simultaneous sampling capability across 23 channels.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| CPU Core | FR81S 32-bit RISC, 5-stage pipeline, 128 MHz max (4 MHz ×32 PLL) |
| Flash Memory | 512 KB program + 64 KB work flash - enables field firmware updates without external storage |
| RAM | 48 KB main RAM + 8 KB battery-backed RAM - retains critical state during stop mode |
| ADC | 3×12-bit successive-approximation units, 23 channels, 1 µs conversion - supports real-time current/voltage sensing in motor control loops |
| CAN/FlexRay | 2×CAN 2.0B (1 Mbps) + 1×FlexRay v2.1 (128-message RAM) - meets AUTOSAR-compliant domain controller requirements |
| Package | LQFP-100, 0.5 mm pitch - provides 76 GPIOs including 8 I²C pseudo-open-drain ports for sensor interfacing |
| Power Supply | Single 5.0 V supply with internal 1.2 V regulator - simplifies board-level power design for automotive ECUs |
Pinout & Package
LQFP-100 package (14 mm × 14 mm, 0.5 mm pitch), thermally enhanced with exposed thermal pad. Pinout validated per Cypress Infineon Datasheet 002-04665 Rev. *B, Pages 11–13.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDD, VSS | Power supply / Ground | Dedicated 5.0 V supply pins with decoupling support for noise-sensitive analog/digital domains |
| XTAL1/XTAL2 | Main crystal oscillator input/output | Supports 4–20 MHz fundamental-mode crystals; enables PLL-based 128 MHz system clock |
| CRX/CRI | Internal CR oscillator terminals | Connects to on-chip 100 kHz RC oscillator with ±50% accuracy and trimmable calibration |
| CAN0_TX/CAN0_RX | Channel 0 CAN differential transceiver interface | Direct connection to external CAN PHY; supports 1 Mbps bit rate with dominant/recessive level detection |
| FRA_Tx_A/FRA_Rx_A | FlexRay channel A transmit/receive | Low-jitter differential signaling interface compliant with FlexRay v2.1 physical layer spec |
| AD00–AD22 | Analog input channels | 23 dedicated ADC inputs mapped across three 12-bit converters with shared sample-and-hold |
| P00–P75 | General-purpose I/O ports | 76 configurable GPIOs; eight support I²C pseudo-open-drain for mixed-voltage sensor communication |
Key Features
| Feature | Design Value |
|---|---|
| On-chip FPU | IEEE754-compliant 32-bit floating-point unit with 16×32-bit registers - accelerates motor vector control (FOC) math without software emulation |
| Memory Protection Unit (MPU) | 8 configurable protection regions with privilege/user access control - enforces ASIL-B software partitioning for functional safety |
| Dual CAN + FlexRay | Independent 2-channel CAN 2.0B and 1-unit FlexRay v2.1 on single die - eliminates need for external communication ASIC in zonal ECU architectures |
| Hardware Watchdog | Dedicated CR-oscillator-based watchdog with independent reset path - ensures fail-safe recovery even during main clock failure |
| I/O Relocation | Peripheral function remapping across GPIO banks - enables PCB layout optimization without firmware changes |
Applications
| Electric Power Steering (EPS) | Automotive Inverter Control |
|---|---|
Use Scenario: Real-time torque assist calculation and three-phase gate driver timing in 12V/48V EPS modules. IC Role / Device Role / Timing Role: Primary motor control MCU executing FOC algorithm, managing CAN feedback from torque sensor, and driving 6 PWM outputs via waveform generator. Use Value: Integrated 128 MHz FR81S core + FPU delivers sub-10 µs current loop execution; dual CAN enables simultaneous communication with vehicle bus and steering angle module. | Use Scenario: Closed-loop control of traction inverters in mild-hybrid powertrain systems. IC Role / Device Role / Timing Role: Central controller coordinating IGBT/SiC gate drivers, reading phase currents via 3×ADC, and enforcing fault responses via hardware watchdog and MPU-protected safe state. Use Value: 23-channel 12-bit ADC with 1 µs conversion supports simultaneous sampling of DC-link voltage, motor phase currents, and temperature sensors - critical for overcurrent protection latency. |
| Brake-by-Wire Actuator | Zonal Body Control Module |
Use Scenario: Redundant actuation control in electro-hydraulic brake systems requiring ASIL-D decomposition. IC Role / Device Role / Timing Role: Safety-monitoring MCU running lockstep-checking routines, validating FlexRay commands from central domain controller, and asserting hardware failsafe outputs. Use Value: Built-in MPU with 8 protection areas isolates safety-critical monitoring code from non-safety tasks; FlexRay v2.1 ensures deterministic < 50 µs message latency for brake command delivery. | Use Scenario: Consolidated body electronics node managing lighting, door locks, HVAC, and seat position in next-gen vehicle architectures. IC Role / Device Role / Timing Role: Domain controller aggregating LIN slave nodes, routing CAN messages between zones, and executing local PWM dimming logic. Use Value: 4-channel multi-function serial interface supports concurrent UART (debug), LIN (actuators), CSIO (EEPROM), and I²C (ambient sensor) - reducing external IC count by ≥3. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar automotive motor control applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| NXP S32K344 | ARM Cortex-M7 core (320 MHz), 4 MB flash, no integrated FlexRay; requires external transceiver | Targets higher-performance ADAS-influenced chassis control; lacks native FlexRay PHY | Select when migrating to AUTOSAR Adaptive or requiring >200 MHz compute; verify external FlexRay PHY integration effort |
| Renesas RH850/F1K | 32-bit RXv2 core (160 MHz), 2 MB flash, dual CAN FD, no FlexRay; 16-bit ADC (1.2 µs) | Optimized for cost-sensitive braking/steering ECUs; uses CAN FD instead of FlexRay for high-speed diagnostics | Select for CAN FD–based architectures where FlexRay is not mandated; confirm ADC channel count sufficiency for multi-sensor systems |
Compared with NXP S32K344 and Renesas RH850/F1K, CY91F585AMHPMC-GTE1 uniquely integrates FlexRay v2.1 with CAN 2.0B on a single die while maintaining ASIL-B ready MPU and FPU - making it optimal for legacy FlexRay-dependent EPS and brake-by-wire platforms requiring minimal BOM change.
Availability
CY91F585AMHPMC-GTE1 is available at Aetrix Electronics and suitable for electric power steering (EPS), brake-by-wire actuators, automotive inverter control, and zonal body control modules requiring stable component supply across extended automotive lifecycles.
Supply support for CY91F585AMHPMC-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 AG is a German semiconductor manufacturer specializing in power management, automotive, and industrial control solutions, with global R&D and manufacturing infrastructure.
CY91F585AMHPMC-GTE1 belongs to the FR81S-based CY91580M/S series - engineered specifically for ASIL-B compliant automotive motor control applications requiring deterministic real-time performance, functional safety support, and multi-protocol connectivity (CAN/FlexRay/LIN).
FAQ
What is the maximum operating frequency and required crystal source for CY91F585AMHPMC-GTE1?
The CY91F585AMHPMC-GTE1 achieves a maximum CPU frequency of 128 MHz using its on-chip PLL with a 4.0 MHz external crystal as the base source (×32 multiplication). This configuration yields a minimum instruction execution time of 7.81 ns. The device also supports 4–20 MHz crystals and includes a trimmable 100 kHz internal CR oscillator for standby-mode clocking.
Does CY91F585AMHPMC-GTE1 support functional safety standards such as ISO 26262?
Yes - the device includes hardware features aligned with ASIL-B requirements: memory protection unit (MPU) with 8 configurable regions, dual-lockstep-capable watchdog timers (hardware and software), clock supervisor with automatic fallback to CR oscillator upon main crystal failure, and error-detecting peripherals (CRC, parity-checked FIFOs). These are documented in Infineon's CY91580M/S Functional Safety Manual (002-04666).
How many ADC channels does CY91F585AMHPMC-GTE1 support, and what is their resolution and speed?
CY91F585AMHPMC-GTE1 integrates three independent 12-bit successive-approximation ADC units supporting up to 23 total analog input channels. Each conversion completes in 1 µs under standard conditions. Channels can be triggered synchronously or independently, enabling precise current/voltage sampling for motor phase control and thermal monitoring in real-time control loops.
Is CY91F585AMHPMC-GTE1 pin-compatible with other members of the CY91580M/S series?
Yes - all AM-series variants (CY91F583AMx/CY91F584AMx/CY91F585AMx) share identical LQFP-100 pinouts and electrical characteristics. Memory size differences (256/384/512 KB program flash) and peripheral enablement (e.g., FlexRay presence) are mask-programmed during fabrication and do not affect footprint or signal routing. This allows scalable hardware design across torque/power tiers.
CY91F585AMHPMC-GTE1 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Infineon Technologies
- Package/Case:
- 100-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:
CY91F585AMHPMC-GTE1 FAQ
1.How can I place an order for CY91F585AMHPMC-GTE1 through Aetrix?
Please submit a Request for Quotation (RFQ) for CY91F585AMHPMC-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 CY91F585AMHPMC-GTE1 reliable?
The price and inventory of CY91F585AMHPMC-GTE1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for CY91F585AMHPMC-GTE1 is usually 5 days.
3.What payment methods are accepted for CY91F585AMHPMC-GTE1?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for CY91F585AMHPMC-GTE1 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for CY91F585AMHPMC-GTE1?
CY91F585AMHPMC-GTE1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your CY91F585AMHPMC-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 CY91F585AMHPMC-GTE1?
For technical support, including CY91F585AMHPMC-GTE1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your CY91F585AMHPMC-GTE1 requirements.
6.How does Aetrix verify that CY91F585AMHPMC-GTE1 is sourced from the original manufacturer or authorized distributors?
All CY91F585AMHPMC-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 CY91F585AMHPMC-GTE1 meets industry standards.
7.What is the process for return or replacement of CY91F585AMHPMC-GTE1?
All CY91F585AMHPMC-GTE1 units undergo pre-shipment inspection (PSI). If there is an issue with CY91F585AMHPMC-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 CY91F585AMHPMC-GTE1 part is unused and in its original packaging.
Return procedure for CY91F585AMHPMC-GTE1:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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