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Infineon Technologies CY91F577BHPMC-GS-F4E1
- Part No.:
- CY91F577BHPMC-GS-F4E1
- Manufacturer:
- Infineon Technologies
- Category:
- Microcontrollers
- Package:
- 144-LQFP
- Datasheet:
-
CY91F577BHPMC-GS-F4E1.pdf
- Description:
- ICU MCU FLASH
- Quantity:
- Payment:
- Shipping:
Inventory:1,007
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Product details
Overview
CY91F577BHPMC-GS-F4E1 from Infineon Technologies (formerly Cypress) is a 32-bit automotive-grade microcontroller featuring the FR81S CPU core, 1024 + 64 KB program flash, 64 KB main RAM, and 8 KB backup RAM. It integrates dual CAN 2.0B controllers (up to 1 Mbps), 3-channel LIN-UART (LIN 2.1), 40-channel 10-bit ADC (3 µs conversion), and 2-channel 8-bit DAC - all in an LQFP-144 package rated for -40°C to +125°C operation.
For engineers reviewing the CY91F577BHPMC-GS-F4E1 datasheet, CY91F577BHPMC-GS-F4E1 pinout, CY91F577BHPMC-GS-F4E1 application, or CY91F577BHPMC-GS-F4E1 equivalent, this device supports deterministic real-time control in powertrain, body electronics, and chassis systems where functional safety readiness, multi-protocol serial connectivity, and on-chip memory protection are required.
Technical Context
The CY91F577BHPMC-GS-F4E1 implements the FR81S 32-bit RISC core with 5-stage pipeline, 80 MHz max clock (via 4 MHz crystal ×20 PLL), IEEE 754-compliant FPU, and MPU with eight configurable protection regions. Its Harvard architecture enables concurrent instruction fetch and data access.
Peripheral integration includes three C-CAN channels with 64/32-message buffers, four multi-function serial interfaces supporting UART/LIN/SPI/I²C, 24-channel 16-bit PPG, six 32-bit free-run timers with input capture/output compare, and a dedicated RTC with sub-oscillator supervision and CR trimming capability.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| CPU Core | FR81S 32-bit RISC, 5-stage pipeline, 80 MHz max, IEEE 754 FPU, MPU with 8 protection regions |
| Memory | 1024 + 64 KB program flash, 64 KB main RAM, 8 KB backup RAM, 64 KB WorkFlash |
| Analog Peripherals | 40-channel 10-bit ADC (3 µs), 2-channel 8-bit DAC, 16-bit up/down counter ×2 |
| Serial Interfaces | 3× CAN 2.0B (1 Mbps), 4× multi-protocol UART/LIN/SPI/I²C, 6× LIN-UART (LIN 2.1) |
| Timers & PWM | 24× 16-bit PPG, 6× 32-bit free-run timers, 12× input capture/output compare, 7× reload timers |
| Package & Environment | LQFP-144, -40°C to +125°C, 5 V supply with internal 1.2 V regulator, VCCE-selectable I/O (3.3 V/5 V) |
Pinout & Package
LQFP-144 package with 0.5 mm pitch, 20 × 20 mm body size, and exposed thermal pad. Pin functions include 111 general-purpose I/O (109 with sub-oscillator enabled), 4 I²C pseudo-open-drain ports, and dedicated pins for CANH/CANL, LIN, RTC, and external bus interface (22-bit address / 16-bit data).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VCC5 | Main power supply | 5 V supply for core logic and analog peripherals; powers internal 1.2 V regulator |
| VCCE | I/O voltage reference | Selectable 3.3 V or 5 V for GPIO voltage level; defines logic thresholds and drive strength |
| CAN0H / CAN0L | CAN differential pair | Channel 0 high-speed CAN transceiver interface (1 Mbps); requires external termination |
| LIN0TX / LIN0RX | LIN-UART channel 0 | Single-wire UART-compatible interface supporting LIN 2.1 protocol and break detection |
| AD00–AD39 | Analog input channels | 40 dedicated ADC inputs; share pins with GPIO; support 10-bit resolution at 3 µs conversion time |
Key Features
| Feature | Design Value |
|---|---|
| FR81S CPU with FPU | IEEE 754-compliant floating-point unit enables real-time motor control and sensor fusion without software emulation |
| MPU with 8 regions | Enables privilege-mode separation between application, driver, and RTOS layers for ASIL-B readiness |
| Dual CAN + LIN stack | Three independent CAN controllers and six LIN-UART channels support mixed-protocol vehicle networks |
| WorkFlash (64 KB) | Dedicated data flash allows safe over-the-air firmware updates and parameter storage with wear leveling |
| Sub-oscillator supervision | Hardware RTC monitoring with CR oscillator trimming ensures ±5 ppm accuracy over temperature and aging |
Applications
| Engine Control Unit (ECU) | Body Control Module (BCM) |
|---|---|
Use Scenario: Real-time fuel injection timing, spark advance calculation, and OBD-II diagnostics in gasoline/diesel powertrains. IC Role / Device Role / Timing Role: Primary controller executing closed-loop combustion algorithms with deterministic 80 MHz execution and hardware FPU acceleration. Use Value: Sub-µs interrupt latency and integrated CAN/LIN enable synchronized actuator control and diagnostic reporting across multiple ECUs. |
Use Scenario: Centralized management of door locks, lighting, wipers, and HVAC via LIN slave nodes and CAN gateway functions. IC Role / Device Role / Timing Role: System coordinator interfacing with LIN slaves (e.g., mirror controls) and relaying commands over CAN to gateway ECU. Use Value: Six LIN-UART channels allow direct connection to up to six LIN sub-nodes without external transceivers, reducing BOM cost and PCB area. |
| Electric Power Steering (EPS) | Advanced Driver Assistance Systems (ADAS) Sensor Hub |
Use Scenario: Torque assist computation, motor phase control, and fault monitoring in 12 V EPS systems. IC Role / Device Role / Timing Role: Safety-critical controller with MPU-enforced memory isolation and dual CAN for redundancy and status reporting. Use Value: 24-channel PPG and 6× 32-bit timers provide precise PWM generation and encoder signal capture for brushless motor commutation. |
Use Scenario: Aggregation and preprocessing of radar, camera, and ultrasonic sensor data before forwarding to central ADAS processor. IC Role / Device Role / Timing Role: Edge-processing node performing time-synchronized sampling of analog sensors via 40-channel ADC and timestamping with free-run timers. Use Value: 10-bit ADC with 3 µs conversion and hardware CRC offload reduce host CPU load while maintaining sub-millisecond sensor fusion latency. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar automotive microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| RH850/F1K | 32-bit RXv2 core, 120 MHz, 1.5 MB flash, no integrated FPU, 2× CAN FD | Better CAN FD bandwidth; lacks LIN-UART and WorkFlash; higher power consumption | Preferred when CAN FD upgrade path is required and LIN integration is handled externally |
| S32K144 | Cortex-M4F core, 112 MHz, 512 KB flash, 64 KB RAM, 1× CAN FD, 1× LIN | ARM ecosystem support; lower peripheral integration density; no dedicated PPG or stepping motor controller | Chosen for AUTOSAR compatibility and toolchain familiarity where complex motor control is not primary |
Compared with RH850/F1K and S32K144, the CY91F577BHPMC-GS-F4E1 delivers superior LIN channel count, on-chip WorkFlash for robust OTA updates, and dedicated stepping motor control logic - making it optimal for cost-sensitive, LIN-heavy body and chassis modules requiring deterministic real-time response.
Availability
CY91F577BHPMC-GS-F4E1 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 automotive production lifecycles.
Supply support for CY91F577BHPMC-GS-F4E1 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 ICs, and security solutions.
This device belongs to the CY91570 series - a family of FR-core microcontrollers designed specifically for ASIL-B-capable automotive control applications demanding high-integration, functional safety features, and multi-protocol communication.
FAQ
What is the maximum operating frequency and how is it achieved?
The CY91F577BHPMC-GS-F4E1 achieves 80 MHz maximum CPU frequency using an internal PLL that multiplies a 4.0 MHz crystal input by 20×. This configuration is factory-trimmed and supported by the SSCG clock generation system, which also provides sub-oscillator (32 kHz) and CR oscillator options for low-power modes.
Does this MCU support functional safety standards such as ISO 26262?
Yes - the CY91F577BHPMC-GS-F4E1 includes hardware features aligned with ASIL-B requirements: memory protection unit (MPU), lockstep-capable peripherals, clock supervision with automatic failover to CR oscillator, and built-in watchdog timers (hardware and software). It is qualified per AEC-Q100 Grade 1 and supports safety mechanisms documented in Infineon's safety manual.
Can the WorkFlash memory be used for EEPROM emulation?
Yes - the 64 KB WorkFlash is specifically designed for data logging and parameter storage. It supports sector erase and byte-programming with endurance exceeding 100,000 cycles, enabling robust EEPROM emulation without external components. The memory is protected by the MPU and accessible only in privileged mode.
How many LIN nodes can be controlled directly without external transceivers?
Six LIN-UART channels are integrated, each capable of driving a standard LIN bus directly using internal level-shifting circuitry. Each channel supports LIN 2.1 protocol, synch break generation/detection, and dedicated baud rate generation - eliminating the need for external LIN transceivers in most body electronics applications.
CY91F577BHPMC-GS-F4E1 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:
- 1.0625MB (1.0625M x 8)
- Program Memory Type:
- FLASH
- EEPROM Size:
- 64K x 8
- RAM Size:
- 72K 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:
CY91F577BHPMC-GS-F4E1 FAQ
1.How can I place an order for CY91F577BHPMC-GS-F4E1 through Aetrix?
Please submit a Request for Quotation (RFQ) for CY91F577BHPMC-GS-F4E1 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 CY91F577BHPMC-GS-F4E1 reliable?
The price and inventory of CY91F577BHPMC-GS-F4E1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for CY91F577BHPMC-GS-F4E1 is usually 5 days.
3.What payment methods are accepted for CY91F577BHPMC-GS-F4E1?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for CY91F577BHPMC-GS-F4E1 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for CY91F577BHPMC-GS-F4E1?
CY91F577BHPMC-GS-F4E1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your CY91F577BHPMC-GS-F4E1 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 CY91F577BHPMC-GS-F4E1?
For technical support, including CY91F577BHPMC-GS-F4E1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your CY91F577BHPMC-GS-F4E1 requirements.
6.How does Aetrix verify that CY91F577BHPMC-GS-F4E1 is sourced from the original manufacturer or authorized distributors?
All CY91F577BHPMC-GS-F4E1 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 CY91F577BHPMC-GS-F4E1 meets industry standards.
7.What is the process for return or replacement of CY91F577BHPMC-GS-F4E1?
All CY91F577BHPMC-GS-F4E1 units undergo pre-shipment inspection (PSI). If there is an issue with CY91F577BHPMC-GS-F4E1, 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 CY91F577BHPMC-GS-F4E1 part is unused and in its original packaging.
Return procedure for CY91F577BHPMC-GS-F4E1:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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