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Infineon Technologies CY91F577BPMC-GSE2
- Part No.:
- CY91F577BPMC-GSE2
- Manufacturer:
- Infineon Technologies
- Category:
- Microcontrollers
- Package:
- 144-LQFP
- Datasheet:
-
CY91F577BPMC-GSE2.pdf
- Description:
- IC MCU 32B 1.0625MB FLSH 144LQFP
- Quantity:
- Payment:
- Shipping:
Inventory:1,785
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Product details
Overview
CY91F577BPMC-GSE2 from Infineon Technologies (formerly Cypress) is a 32-bit automotive-grade microcontroller featuring the FR81S RISC 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 8/10-bit ADC (3 μs conversion), and 2-channel 8-bit DAC - deployed in engine control units and body electronics.
For engineers reviewing the CY91F577BPMC-GSE2 datasheet, CY91F577BPMC-GSE2 pinout, CY91F577BPMC-GSE2 application, or CY91F577BPMC-GSE2 equivalent, key selection criteria include LQFP-144 package compatibility, 5V/3.3V I/O voltage selectability via VCCE, real-time clock with sub-oscillator supervision, and hardware MPU with eight protection areas for ASIL-B–capable safety partitions.
Technical Context
The CY91F577BPMC-GSE2 implements a Harvard-architecture FR81S core with 5-stage pipeline, 80 MHz max operation (PLL ×20 from 4 MHz crystal), IEEE 754-compliant FPU, and built-in memory protection unit supporting privilege/user modes. It executes 16-bit fixed-length instructions at 1 cycle per instruction with bit-search, barrel-shift, and function-entry/exit support.
Peripheral integration includes three C-CAN channels (64-message buffer on ch.0), four multi-protocol serial interfaces (UART/CSIO/LIN-UART/I²C), 24-channel PPG, six 32-bit free-run timers with input capture/output compare, and LCD controller (4-common × 32-segment) with static/duty drive switching - all operating under dual power domains (5 V core, VCCE-selectable I/O).
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| CPU Core | FR81S 32-bit RISC, 5-stage pipeline, 80 MHz max (PLL ×20), 1 instruction/cycle |
| Memory | 1024 + 64 KB program flash, 64 KB main RAM, 8 KB backup RAM, 64 KB WorkFlash |
| Analog Peripherals | 40-channel 8/10-bit ADC (3 μs conv.), 2-channel 8-bit DAC, 16-channel external interrupt |
| Communication | 3× C-CAN (1 Mbps), 6× LIN-UART (LIN 2.1), 4× multi-protocol serial (UART/CSIO/I²C), 4× I²C pseudo-open-drain ports |
| Timers & PWM | 24× 16-bit PPG, 7× reload timer, 6× 32-bit free-run timer, 12× input capture/output compare, 6× stepping motor channels |
| Package & Power | LQFP-144, 5 V core supply, VCCE-selectable 5 V/3.3 V I/O, -40°C to +125°C ambient |
Pinout & Package
LQFP-144 package with 0.5 mm pitch, 20 × 20 mm body size, exposed thermal pad (not electrically connected), RoHS-compliant lead finish. I/O voltage level (5 V or 3.3 V) selected per group via VCCE pin.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VCC5 | Main power supply | 5 V core supply for internal regulator generating 1.2 V CPU voltage |
| VCCE | I/O voltage reference | Selects 5 V or 3.3 V logic level for P010–P017, P020–P027, P030–P036 groups |
| XIN / XOUT | Main oscillator interface | 4 MHz crystal connection; supports external clock input mode |
| EXCLK | External clock input | Accepts external clock up to 80 MHz for bypassing crystal oscillator |
| RESET | Active-low reset input | Asynchronous reset with internal pull-up; triggers POR, LVD, and watchdog resets |
| CAN0TX / CAN0RX | Channel 0 CAN transceiver interface | Differential signal pair for CAN 2.0B communication at up to 1 Mbps |
Key Features
| Feature | Design Value |
|---|---|
| Hardware MPU | Eight configurable protection areas enforcing access privilege in user/privilege modes - enables ASIL-B partitioning per ISO 26262 |
| Dual-clock supervision | Detects failure of 4 MHz main or 32 kHz sub-oscillator and auto-switches to CR oscillator - ensures RTC continuity and fail-safe timing |
| Multi-protocol serial | Single peripheral block supports UART, SPI (master/slave), I²C, and LIN-UART (2.1) with shared FIFO and DMA - reduces firmware complexity |
| Stepping motor control | 6 dedicated channels with 8/10-bit PWM, high-current output drivers (4 lines × 6), and back-EMF sensing via shared ADC inputs |
| Low-power modes | Sleep, Stop, Watch, and Sub RUN modes with selective peripheral retention - achieves <10 μA standby current with RTC active |
Applications
| Engine Control Unit (ECU) | Body Control Module (BCM) |
|---|---|
|
Use Scenario: Real-time combustion timing, fuel injection pulse width, and knock detection in gasoline direct injection systems. IC Role / Device Role / Timing Role: Primary control MCU executing closed-loop PID algorithms with deterministic 80 MHz instruction throughput and 3 μs ADC sampling. Use Value: Integrated 3-channel CAN enables synchronized actuator feedback, while hardware MPU isolates safety-critical ignition routines from non-critical diagnostics. |
Use Scenario: Centralized management of door locks, window lifts, lighting sequences, and HVAC fan speed in premium vehicles. IC Role / Device Role / Timing Role: System-on-chip controller interfacing with LIN slaves (door modules, seat controls) and CAN backbone via three independent C-CAN channels. Use Value: 64 KB RAM supports multi-threaded task scheduling; 6-channel stepping motor controller drives HVAC blend doors without external drivers. |
| Instrument Cluster | Advanced Driver Assistance Systems (ADAS) Sensor Hub |
|
Use Scenario: Driving animation rendering, analog gauge emulation, and warning light sequencing using integrated LCD controller. IC Role / Device Role / Timing Role: Display processor managing 4-common × 32-segment LCD with dynamic duty/static drive switching and V0–V3 voltage rail flexibility. Use Value: SEG/COM pins double as GPIO; static drive mode (ST0–ST8) supports monochrome segment displays without external bias circuitry. |
Use Scenario: Aggregating radar, camera, and ultrasonic sensor data before forwarding to domain controller over CAN FD. IC Role / Device Role / Timing Role: Pre-processing node performing time-synchronized timestamping, CRC validation, and sensor fusion pre-filtering using FPU-accelerated math. Use Value: 32-bit free-run timers with input capture provide nanosecond-accurate timestamping of asynchronous sensor interrupts across 12 channels. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar 32-bit automotive microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| RH850/F1K | 400 MHz dual-core, 2 MB flash, no integrated LIN-UART; requires external transceivers | Higher performance for ADAS domain control; lacks on-die stepping motor drivers | Choose for compute-intensive sensor fusion; avoid if LIN slave integration or motor drive is required |
| TC375TA | TriCore v1.6, 300 MHz, 4 MB flash, 512 KB RAM, 6x CAN FD, no WorkFlash | Supports AUTOSAR OS natively; lacks integrated LCD controller and stepping motor peripherals | Prefer for AUTOSAR-based ECU development; not suitable for cost-sensitive instrument clusters with integrated display |
Compared with RH850/F1K and TC375TA, the CY91F577BPMC-GSE2 delivers optimal integration for mid-tier automotive ECUs where LIN, stepping motor control, LCD driving, and functional safety partitioning are required - without over-provisioning compute or memory resources.
Availability
CY91F577BPMC-GSE2 is available at Aetrix Electronics and suitable for engine control units, body control modules, instrument clusters, and ADAS sensor hubs requiring stable component supply across extended automotive temperature ranges and long production lifecycles.
Supply support for CY91F577BPMC-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 management, automotive MCUs, and security solutions with vertical integration from silicon to system-level IP.
This device belongs to the CY91570 series - a family of FR81S-based 32-bit microcontrollers engineered specifically for ASIL-B automotive control applications requiring mixed-signal integration, functional safety mechanisms, and long-term supply assurance.
FAQ
What is the maximum operating frequency and how is it achieved?
The CY91F577BPMC-GSE2 operates at up to 80 MHz using an internal PLL that multiplies a 4 MHz crystal input by a factor of 20. This configuration is confirmed in the datasheet's "System Clock" section and supported by the SSCG clock generation block. The 5-stage pipeline and single-cycle instruction execution enable deterministic real-time response at this frequency without wait states.
Does this MCU support AUTOSAR-compliant software stacks?
While the CY91F577BPMC-GSE2 is not pre-certified for AUTOSAR, its FR81S core, hardware MPU with eight protection regions, and deterministic interrupt latency (6 cycles) meet foundational requirements for ASIL-B compliance. Third-party AUTOSAR OS vendors (e.g., ETAS, Vector) offer ported stacks validated on this silicon, leveraging its memory protection and CAN/LIN peripheral sets.
Can the VCCE pin be used to mix 3.3 V and 5 V I/O on the same device?
Yes - VCCE selects I/O voltage level per port group: P010–P017, P020–P027, and P030–P036 each operate at either 3.3 V or 5 V depending on VCCE supply. This allows interfacing with both legacy 5 V sensors and modern 3.3 V communication ICs without level shifters, as specified in the "I/O Circuit Type" section of the datasheet.
Is the WorkFlash memory suitable for EEPROM emulation?
Yes - the 64 KB Data Flash (WorkFlash) supports byte-level erase and write operations with 100,000-cycle endurance and data retention >20 years at 125°C. Cypress provides application notes (e.g., AN91257) detailing wear-leveling algorithms and atomic update methods specifically for EEPROM emulation use cases in automotive black-box logging and calibration storage.
CY91F577BPMC-GSE2 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:
CY91F577BPMC-GSE2 FAQ
1.How can I place an order for CY91F577BPMC-GSE2 through Aetrix?
Please submit a Request for Quotation (RFQ) for CY91F577BPMC-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 CY91F577BPMC-GSE2 reliable?
The price and inventory of CY91F577BPMC-GSE2 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for CY91F577BPMC-GSE2 is usually 5 days.
3.What payment methods are accepted for CY91F577BPMC-GSE2?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for CY91F577BPMC-GSE2 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for CY91F577BPMC-GSE2?
CY91F577BPMC-GSE2 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your CY91F577BPMC-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 CY91F577BPMC-GSE2?
For technical support, including CY91F577BPMC-GSE2 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your CY91F577BPMC-GSE2 requirements.
6.How does Aetrix verify that CY91F577BPMC-GSE2 is sourced from the original manufacturer or authorized distributors?
All CY91F577BPMC-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 CY91F577BPMC-GSE2 meets industry standards.
7.What is the process for return or replacement of CY91F577BPMC-GSE2?
All CY91F577BPMC-GSE2 units undergo pre-shipment inspection (PSI). If there is an issue with CY91F577BPMC-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 CY91F577BPMC-GSE2 part is unused and in its original packaging.
Return procedure for CY91F577BPMC-GSE2:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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