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Infineon Technologies CY91F577BHSPMC1-GSE1
- Part No.:
- CY91F577BHSPMC1-GSE1
- Manufacturer:
- Infineon Technologies
- Category:
- Microcontrollers
- Package:
- 144-LQFP
- Datasheet:
-
CY91F577BHSPMC1-GSE1.pdf
- Description:
- IC MCU 32B 1.0625MB FLSH 144LQFP
- Quantity:
- Payment:
- Shipping:
Inventory:1,460
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Product details
Overview
CY91F577BHSPMC1-GSE1 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, 8 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 using a 4 MHz crystal with PLL multiplication and targets engine control units and body electronics.
For engineers reviewing the CY91F577BHSPMC1-GSE1 datasheet, CY91F577BHSPMC1-GSE1 pinout, CY91F577BHSPMC1-GSE1 application, or CY91F577BHSPMC1-GSE1 equivalent, key selection criteria include its LQFP-144 package, 5V/3.3V I/O flexibility via VCCE, built-in FPU (IEEE 754), MPU with eight protection areas, and support for Sub RUN/Stop low-power modes in harsh automotive environments.
Technical Context
The CY91F577BHSPMC1-GSE1 implements a Harvard-architecture FR81S RISC core with 5-stage pipeline, 16 general-purpose 32-bit registers, and 16-bit fixed-length instructions executing at 1 instruction/cycle. It integrates dual-clock supervision (4 MHz main + 32 kHz sub), hardware CRC, and clock failover to CR oscillator.
Peripheral integration includes three C-CAN controllers (up to 1 Mbps), 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 an LCD controller (4-common × 32-segment) with static/duty drive switching capability.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| CPU Core | FR81S 32-bit RISC, 5-stage pipeline, 80 MHz max @ 4 MHz crystal ×20 PLL |
| Flash Memory | 1024 + 64 KB program flash + 64 KB WorkFlash - supports in-field firmware updates and data logging |
| RAM | 64 KB main RAM + 8 KB backup RAM - retains critical state during Stop mode with VBAT |
| Analog Peripherals | 40-channel 10-bit ADC (3 μs conversion), 2-channel 8-bit 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/SPI/I²C), HS-SPI disabled |
| Timers & PWM | 24× 16-bit PPG channels, 6× 32-bit free-run timers, 12× input capture/output compare, 6-channel stepping motor controller |
| Package & Power | LQFP-144, 5 V core supply with internal 1.2 V regulator, VCCE-selectable 5 V/3.3 V I/O, -40°C to +125°C ambient |
Pinout & Package
CY91F577BHSPMC1-GSE1 is housed in a 144-pin LQFP (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 (I/O voltage select), VSS (ground), and dedicated analog/digital supply pins. All I/O pins support programmable pull-up/down and slew-rate control.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VCC5 | Main power supply | 5 V ±5 % input powering internal regulator; must be decoupled locally per datasheet layout guidelines |
| VCCE | I/O voltage reference | Selects 5 V or 3.3 V logic level for port groups P010–P017, P020–P027, P030–P036 |
| XTAL1/XTAL2 | Main oscillator terminals | Connects 4 MHz fundamental-mode crystal; internal oscillator circuit enables startup without external capacitors |
| RTCX1/RTCX2 | Real-time clock oscillator | Optional 32.768 kHz crystal connection for battery-backed RTC operation in Stop mode |
| CAN0TX/CAN0RX | CAN channel 0 differential interface | Direct connection to external CAN transceiver; requires 120 Ω termination at network end |
| P000–P007 | General-purpose port 0 | Configurable as GPIO, LIN-UART ch.2, or CS0X/ASX for external bus interface |
Key Features
| Feature | Design Value |
|---|---|
| Built-in IEEE 754 FPU | Enables deterministic floating-point math for motor control algorithms without software emulation overhead |
| Memory Protection Unit (MPU) | Eight configurable regions enforce privilege/user mode access control for code/data, supporting ASIL-B software partitioning |
| Dual Clock Supervision | Independent monitoring of 4 MHz main and 32 kHz sub oscillators with automatic CR clock failover ensures RTC continuity |
| Flexible Low-Power Modes | Sleep (core stop), Stop (full power-down), Watch (RTC active), and Sub RUN (sub-oscillator only) meet UNECE R155 power budget requirements |
| Peripheral Function Relocation | Runtime remapping of serial, timer, and interrupt signals to alternate pins simplifies PCB routing and EMI mitigation |
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 engines. IC Role / Device Role / Timing Role: Primary control MCU executing closed-loop PID algorithms with sub-microsecond jitter tolerance on PPG and free-run timers. Use Value: 80 MHz deterministic execution and 3 μs ADC enable 10 kHz sampling of crankshaft position and oxygen sensors. |
Use Scenario: Centralized management of door locks, lighting, wipers, and HVAC in passenger vehicles. IC Role / Device Role / Timing Role: System coordinator interfacing with LIN slave nodes (mirrors, seats) and CAN gateway via three independent C-CAN channels. Use Value: Integrated LIN-UART (6 channels) and I²C (400 kbps) eliminate external protocol translators, reducing BOM count by 2–3 ICs. |
| Electric Power Steering (EPS) | Advanced Driver Assistance Systems (ADAS) Sensor Hub |
|
Use Scenario: Torque assist computation and motor phase control in brushless DC steering actuators. IC Role / Device Role / Timing Role: Safety-critical controller with MPU-enforced separation between motor control firmware and diagnostic monitor tasks. Use Value: Dual 8-bit DAC outputs drive analog torque feedback paths; 24-channel PPG generates precise 3-phase PWM with dead-time insertion. |
Use Scenario: Aggregation and preprocessing of radar, camera, and ultrasonic sensor data before transmission to ADAS domain controller. IC Role / Device Role / Timing Role: Preprocessing node performing time-synchronized timestamping, CRC validation, and CAN message filtering. Use Value: Hardware CRC generator and interrupt batch-read register reduce CPU load by >35 % during high-bandwidth sensor data ingestion. |
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 |
|---|---|---|---|
| Infineon CY91F578BHSPMC1-GSE1 | 1536 + 64 KB flash, 96 KB main RAM, 16 KB backup RAM, same peripheral set and pinout | Required where larger firmware image size or extended data buffering is needed (e.g., OTA update staging) | Select when future firmware growth exceeds 1 MB or runtime data logging exceeds 64 KB RAM capacity |
| NXP S32K144HAT0MLHT | ARM Cortex-M4F core, 512 KB flash, 64 KB RAM, AEC-Q100 Grade 1, CAN FD support | Preferred for new designs requiring CAN FD, AUTOSAR OS compatibility, or toolchain alignment with NXP ecosystem | Choose for greenfield projects needing CAN FD bandwidth or certified AUTOSAR stack integration |
Compared with CY91F577BHSPMC1-GSE1, the CY91F578 variant offers scalable memory without peripheral or timing changes, while the S32K144 provides CAN FD and broader ecosystem support at the cost of FR architecture discontinuation and different safety certification path.
Availability
CY91F577BHSPMC1-GSE1 is available at Aetrix Electronics and suitable for engine control units, body control modules, and electric power steering systems requiring stable component supply across automotive production lifecycles.
Supply support for CY91F577BHSPMC1-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 is a German semiconductor manufacturer specializing in power management, automotive MCUs, and security solutions, with global R&D and manufacturing infrastructure.
The CY91570 series was developed by Cypress (acquired by Infineon in 2020) specifically for AEC-Q100-compliant automotive control applications demanding high reliability, mixed-signal integration, and functional safety readiness.
FAQ
What is the maximum operating temperature range for CY91F577BHSPMC1-GSE1?
The device is qualified for operation from −40 °C to +125 °C ambient temperature per AEC-Q100 Grade 2 specifications. This rating applies to all core logic, flash memory, and integrated peripherals including CAN, LIN-UART, and ADC, with derating applied only for sustained junction temperatures above 150 °C.
Does CY91F577BHSPMC1-GSE1 support CAN FD?
No. The integrated C-CAN controllers comply exclusively with ISO 11898-1:2015 Classical CAN (CAN 2.0B), supporting bit rates up to 1 Mbps. CAN FD functionality is not implemented in the FR81S peripheral set, and no firmware or configuration option enables FD frame formatting or arbitration field extensions.
Can the built-in FPU perform double-precision arithmetic?
No. The hardware FPU implements single-precision (32-bit) IEEE 754 operations only, including add, subtract, multiply, divide, square root, and fused multiply-add. Double-precision operations require software emulation and are not accelerated by the FPU unit.
Is external memory expansion supported via the external bus interface?
Yes. The 22-bit address / 16-bit data external bus interface supports asynchronous SRAM, NOR flash, and peripheral ASICs. Address lines A0–A21 and data lines D0–D15 are multiplexed with GPIO; control signals ASX, CS0X, CS1X, RDX, WR0X, and WR1X are configurable for 5 V or 3.3 V logic levels via VCCE.
CY91F577BHSPMC1-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:
- 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; D/A 2x8b
- Oscillator Type:
- External
- Operating Temperature:
- -40°C ~ 105°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
CY91F577BHSPMC1-GSE1 FAQ
1.How can I place an order for CY91F577BHSPMC1-GSE1 through Aetrix?
Please submit a Request for Quotation (RFQ) for CY91F577BHSPMC1-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 CY91F577BHSPMC1-GSE1 reliable?
The price and inventory of CY91F577BHSPMC1-GSE1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for CY91F577BHSPMC1-GSE1 is usually 5 days.
3.What payment methods are accepted for CY91F577BHSPMC1-GSE1?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for CY91F577BHSPMC1-GSE1 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for CY91F577BHSPMC1-GSE1?
CY91F577BHSPMC1-GSE1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your CY91F577BHSPMC1-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 CY91F577BHSPMC1-GSE1?
For technical support, including CY91F577BHSPMC1-GSE1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your CY91F577BHSPMC1-GSE1 requirements.
6.How does Aetrix verify that CY91F577BHSPMC1-GSE1 is sourced from the original manufacturer or authorized distributors?
All CY91F577BHSPMC1-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 CY91F577BHSPMC1-GSE1 meets industry standards.
7.What is the process for return or replacement of CY91F577BHSPMC1-GSE1?
All CY91F577BHSPMC1-GSE1 units undergo pre-shipment inspection (PSI). If there is an issue with CY91F577BHSPMC1-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 CY91F577BHSPMC1-GSE1 part is unused and in its original packaging.
Return procedure for CY91F577BHSPMC1-GSE1:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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