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Infineon Technologies CY91F522BHBPMC1-GS-F4E1
- Part No.:
- CY91F522BHBPMC1-GS-F4E1
- Manufacturer:
- Infineon Technologies
- Category:
- Microcontrollers
- Package:
- 64-LQFP
- Datasheet:
-
CY91F522BHBPMC1-GS-F4E1.pdf
- Description:
- IC MCU 32BIT 320KB FLASH 64LQFP
- Quantity:
- Payment:
- Shipping:
Inventory:3,675
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Product details
Overview
CY91F522BHBPMC1-GS-F4E1 from Infineon Technologies (formerly Cypress) is a 32-bit FR81S automotive microcontroller with 256+64 KB program flash, 48+8 KB RAM, 80 MHz max CPU frequency, IEEE 754-compliant FPU, and integrated CAN 2.0B controllers. It operates from -40°C to +125°C and supports sub-oscillator-based RTC, hardware watchdog, and memory protection (MPU) for engine control unit (ECU) and body control module (BCM) applications.
For engineers reviewing the CY91F522BHBPMC1-GS-F4E1 datasheet, CY91F522BHBPMC1-GS-F4E1 pinout, CY91F522BHBPMC1-GS-F4E1 application, or CY91F522BHBPMC1-GS-F4E1 equivalent, key selection criteria include its 64-pin LQFP package, dual 12-bit ADC units (13+13 ch), 3-channel CAN interface with up to 1 Mbps, 44 GPIOs, and support for LIN 2.1 and I²C in automotive ASIL-B–capable systems.
Technical Context
The CY91F522BHBPMC1-GS-F4E1 implements the FR81S 32-bit RISC core with 5-stage pipeline, Harvard architecture, and instruction compatibility with the FR family. It integrates an on-chip PLL supporting 4–16 MHz main oscillator input and 20× multiplication for 80 MHz operation, plus a dedicated 100 kHz CR oscillator and sub-clock (32 kHz) supervision circuitry.
Peripheral integration includes three independent CAN controllers (64/128 message buffers), dual 12-bit successive-approximation ADCs (1.4 μs conversion time), two 8-bit D/A converters, 16-bit PPG timers (21 channels), and multi-function serial interfaces (UART, CSIO/SPI, LIN, I²C) with 64-deep FIFOs and DMA support across 16 channels.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| CPU Core | FR81S 32-bit RISC, 5-stage pipeline, 80 MHz max (12.5 ns min instruction cycle) |
| Memory | 256+64 KB program flash + 64 KB WorkFlash; 48 KB main RAM + 8 KB backup RAM |
| ADC | Dual 12-bit SAR ADC: 13+13 channels total, 1.4 μs conversion time per sample |
| CAN Interface | 3 channels: ch.0 supports 128 msg buffers; ch.1/ch.2 support 64 msg buffers each; up to 1 Mbps |
| Package & Temp | 64-pin LQFP (LQD064), -40°C to +125°C ambient operating range |
| Power Supply | 2.7 V to 5.5 V; internal 1.2 V core generated via on-chip voltage step-down |
| Security & Safety | MPU with 8 protection areas, ECC on flash/RAM, TPU, Flash Security, CRC generator |
Pinout & Package
64-pin LQFP (LQD064) package with exposed thermal pad; 44 general-purpose I/O pins (no sub-oscillator configuration), 32-bit address/data bus capability disabled, 5 V-tolerant inputs on UART/LIN/I²C channels 6/8/9/11.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDD, VSS | Power supply and ground | Primary 5 V supply and return; decoupling required per datasheet layout guidelines |
| XIN, XOUT | Main crystal oscillator input/output | Connects to 4–16 MHz external quartz; drives on-chip PLL for system clock generation |
| EXCLK | External clock input | Alternative clock source for peripheral modules (e.g., UART baud rate generation) |
| RESET | Active-low reset input | Asynchronous reset assertion; supports power-on reset and low-voltage detection reset |
| TXD0–RXD0 | UART0 transmit/receive | Full-duplex asynchronous interface with 64-step FIFOs and parity/frame error detection |
| TXD1–RXD1 | UART1 transmit/receive | Second UART channel supporting LIN 2.1 protocol with synch break/delimiter generation |
| CAN_TX0–CAN_RX0 | CAN controller 0 differential I/O | Direct connection to external CAN transceiver; supports ISO 11898-2 physical layer signaling |
| AD00–AD12 | Analog input channels | 13-channel ADC0 input group; shared with GPIO function; 12-bit resolution, 1.4 μs conversion |
| DA0, DA1 | Digital-to-analog outputs | Two 8-bit R-2R DAC outputs for analog actuator control or sensor biasing |
| INT0–INT7 | External interrupt inputs | Eight level- or edge-sensitive interrupt sources per unit; two units provide 16 total channels |
Key Features
| Feature | Design Value |
|---|---|
| Floating-point unit (FPU) | IEEE 754-compliant 32-bit FPU with 16-register file; enables real-time motor control math without software emulation |
| Memory protection (MPU) | Eight configurable protection regions for code/data access control in privilege/user modes; enforces ASIL-B partitioning |
| Dual ADC subsystem | Two independent 12-bit SAR ADCs with simultaneous sampling capability; supports engine knock detection and battery monitoring |
| Multi-protocol serial interface | 12-channel MFS supporting UART, SPI, LIN, and I²C on shared pins with programmable FIFO depth and DMA linkage |
| Real-time clock (RTC) | Sub-clock (32 kHz) or main-clock driven RTC with calendar function; calibrated via prescaler for ±1 ppm accuracy over temperature |
| Low-power modes | Sleep, Stop, Watch, and Sub RUN modes with selective peripheral retention; enables <10 μA standby current in Stop mode |
Applications
| Engine Control Unit (ECU) | Body Control Module (BCM) |
|---|---|
Use Scenario: Real-time combustion timing, fuel injection pulse width calculation, and OBD-II diagnostics in gasoline/diesel powertrains. IC Role / Device Role / Timing Role: Primary control MCU executing closed-loop PID algorithms with deterministic 80 MHz instruction throughput and FPU-accelerated math. Use Value: Dual 12-bit ADCs enable simultaneous cylinder pressure and exhaust gas oxygen sensing; CAN 2.0B interfaces communicate with transmission and ABS ECUs at 500 kbps. | Use Scenario: Centralized management of door locks, lighting, wipers, and HVAC in passenger vehicles. IC Role / Device Role / Timing Role: System coordinator with LIN 2.1 master capability driving slave nodes (e.g., mirror controls, seat modules). Use Value: 44 GPIOs support direct drive of relays and LEDs; 8-bit DACs generate PWM-compatible dimming signals for interior lighting. |
| Advanced Driver Assistance Systems (ADAS) Sensor Hub | Electric Power Steering (EPS) Controller |
Use Scenario: Aggregation and preprocessing of radar, camera, and ultrasonic sensor data before forwarding to domain controller. IC Role / Device Role / Timing Role: Peripheral interface aggregator with multi-channel SPI/UART/I²C and hardware CRC for data integrity verification. Use Value: 16-channel DMA transfers sensor frames without CPU intervention; ECC-protected RAM ensures fault-free buffer storage during EMI events. | Use Scenario: Torque assist computation and motor phase commutation in brushless DC steering motors. IC Role / Device Role / Timing Role: Real-time motion controller with PPG timers generating precise 3-phase PWM and ADC-triggered current sampling. Use Value: 21-channel PPG supports independent high-resolution PWM for motor phases and auxiliary functions; FPU executes field-oriented control (FOC) in <10 μs. |
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 CAN FD; requires external CAN transceivers | Targeted at higher-ASIL D domains (e.g., brake-by-wire); lacks LIN 2.1 hardware assist | Select when needing dual-core lockstep for ASIL D compliance; not drop-in compatible due to pinout and peripheral register differences |
| S32K144 | ARM Cortex-M4F, 512 KB flash, 64 KB SRAM, CAN FD support, no built-in DAC | Designed for entry-level automotive networking; supports AUTOSAR OS but lacks FR81S instruction compatibility | Choose for new designs requiring CAN FD and broad ecosystem tooling; migration from CY91F522 requires firmware rearchitecture |
Compared with RH850/F1K and S32K144, the CY91F522BHBPMC1-GS-F4E1 delivers optimized cost-performance for ASIL-B applications with native LIN 2.1, dual ADCs, and integrated DACs-making it ideal for legacy-compatible ECU upgrades where FR-family code reuse and 64-pin footprint constraints apply.
Availability
CY91F522BHBPMC1-GS-F4E1 is available at Aetrix Electronics and suitable for engine control units, body control modules, and electric power steering systems requiring stable component supply across extended automotive lifecycles.
Supply support for CY91F522BHBPMC1-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 AG is a German semiconductor manufacturer specializing in power management, automotive MCUs, and security solutions, with global R&D and manufacturing infrastructure.
The CY91520 series belongs to Infineon's automotive-grade FR81S microcontroller product line, designed specifically for functional-safety–compliant engine, chassis, and body electronics with integrated CAN, LIN, and real-time signal processing capabilities.
FAQ
What is the maximum operating frequency and associated clock source configuration?
The CY91F522BHBPMC1-GS-F4E1 achieves 80 MHz maximum CPU frequency using its on-chip PLL with a 4.0 MHz external crystal and 20× multiplication factor. The PLL supports input frequencies from 4–16 MHz, and the system clock can alternatively derive from the internal 100 kHz CR oscillator or 32 kHz sub-oscillator for low-power modes. All configurations are selectable via register settings at boot.
Does this MCU support CAN FD or only classical CAN 2.0B?
This device implements classical CAN 2.0B only, with three independent controllers supporting bit rates up to 1 Mbps. It does not support CAN FD features such as flexible data-rate, extended data length, or CRC enhancements. For CAN FD requirements, consider Infineon's newer AURIX™ TC3xx series or cross-evaluate S32K3xx alternatives.
How many independent ADC modules are implemented, and what is their sampling concurrency capability?
The CY91F522BHBPMC1-GS-F4E1 contains two independent 12-bit successive-approximation ADC units, each with 13 input channels (AD00–AD12 for ADC0; AD13–AD25 for ADC1). Both units support simultaneous start triggers and individual result registers, enabling true concurrent sampling-for example, measuring crankshaft position and throttle angle in the same cycle with 1.4 μs conversion time per channel.
Is the 64 KB WorkFlash memory capable of EEPROM-like wear leveling and byte-write operations?
No. The 64 KB WorkFlash is standard NOR flash with sector-erase (minimum 1 KB) and page-program (minimum 128 bytes) granularity. It lacks hardware wear leveling or byte-write capability. Emulated EEPROM functionality must be implemented in firmware using background erase/write management across multiple sectors, as documented in Cypress Application Note AN91520-WorkFlash.
CY91F522BHBPMC1-GS-F4E1 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Infineon Technologies
- Package/Case:
- 64-LQFP
- Series:
- FR MB91520
- Packaging:
- Tray
- Product Status:
- Obsolete
- Programmable:
- Not Verified
- Core Processor:
- FR81S
- Core Size:
- 32-Bit Single-Core
- Speed:
- 80MHz
- Connectivity:
- CANbus, CSIO, I2C, LINbus, SPI, UART/USART
- Peripherals:
- DMA, LVD, POR, PWM, WDT
- Number of I/O:
- 44
- Program Memory Size:
- 320KB (320K x 8)
- Program Memory Type:
- FLASH
- EEPROM Size:
- 64K x 8
- RAM Size:
- 56K x 8
- Voltage - Supply (Vcc/Vdd):
- 2.7V ~ 5.5V
- Data Converters:
- A/D 26x12b; D/A 1x8b
- Oscillator Type:
- External
- Operating Temperature:
- -40°C ~ 105°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
CY91F522BHBPMC1-GS-F4E1 FAQ
1.How can I place an order for CY91F522BHBPMC1-GS-F4E1 through Aetrix?
Please submit a Request for Quotation (RFQ) for CY91F522BHBPMC1-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 CY91F522BHBPMC1-GS-F4E1 reliable?
The price and inventory of CY91F522BHBPMC1-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 CY91F522BHBPMC1-GS-F4E1 is usually 5 days.
3.What payment methods are accepted for CY91F522BHBPMC1-GS-F4E1?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for CY91F522BHBPMC1-GS-F4E1 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for CY91F522BHBPMC1-GS-F4E1?
CY91F522BHBPMC1-GS-F4E1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your CY91F522BHBPMC1-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 CY91F522BHBPMC1-GS-F4E1?
For technical support, including CY91F522BHBPMC1-GS-F4E1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your CY91F522BHBPMC1-GS-F4E1 requirements.
6.How does Aetrix verify that CY91F522BHBPMC1-GS-F4E1 is sourced from the original manufacturer or authorized distributors?
All CY91F522BHBPMC1-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 CY91F522BHBPMC1-GS-F4E1 meets industry standards.
7.What is the process for return or replacement of CY91F522BHBPMC1-GS-F4E1?
All CY91F522BHBPMC1-GS-F4E1 units undergo pre-shipment inspection (PSI). If there is an issue with CY91F522BHBPMC1-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 CY91F522BHBPMC1-GS-F4E1 part is unused and in its original packaging.
Return procedure for CY91F522BHBPMC1-GS-F4E1:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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