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Infineon Technologies CY91F522BSCPMC1-GSE1
- Part No.:
- CY91F522BSCPMC1-GSE1
- Manufacturer:
- Infineon Technologies
- Category:
- Microcontrollers
- Package:
- 64-LQFP
- Datasheet:
-
CY91F522BSCPMC1-GSE1.pdf
- Description:
- IC MCU 32BIT 320KB FLASH 64LQFP
- Quantity:
- Payment:
- Shipping:
Inventory:4,099
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Product details
Overview
CY91F522BSCPMC1-GSE1 from Infineon Technologies (formerly Cypress) is a 32-bit FR81S automotive microcontroller with 256+64 KB program flash, 48+8 KB RAM, IEEE 754-compliant FPU, and triple CAN 2.0B controllers operating up to 1 Mbps. It integrates 12-bit ADC (up to 48 channels), dual 8-bit DAC, RTC, and operates from −40 °C to +125 °C for engine control unit (ECU) and body control module (BCM) applications.
For engineers reviewing the CY91F522BSCPMC1-GSE1 datasheet, CY91F522BSCPMC1-GSE1 pinout, CY91F522BSCPMC1-GSE1 application, or CY91F522BSCPMC1-GSE1 equivalent, this page delivers verified technical context, package mapping, real-world use cases, and validated alternative options - all grounded in Infineon's official CY91520 Series documentation (Doc No. 002-04662 Rev. *I).
Technical Context
The CY91F522BSCPMC1-GSE1 implements the FR81S 32-bit RISC core with 5-stage pipeline, 80 MHz max operation (via PLL ×20 from 4 MHz source), and Harvard architecture enabling simultaneous instruction/data access. It supports 16 priority-level interrupts with 6-cycle latency and includes MPU with eight configurable protection areas for privilege/user mode access control.
Peripheral integration includes three independent CAN controllers (128/64-message buffers), 12-channel multi-function serial interface supporting UART/LIN/CSIO/I²C, and a 176-pin LQFP package with 44 general-purpose I/Os (no sub-oscillator configuration). Power management features Sleep/Stop/Watch modes with LVD reset at 2.8 V ±8% and CR oscillator fallback on main/sub clock failure.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| CPU Core | FR81S 32-bit RISC with 5-stage pipeline, 80 MHz max frequency, 12.5 ns instruction cycle |
| Memory | 256+64 KB program flash + 64 KB WorkFlash; 48 KB main RAM + 8 KB backup RAM |
| FPU | IEEE 754-compliant floating-point unit with 32-bit × 16 register file |
| ADC/DAC | 12-bit successive-approximation ADC (48 ch total); dual 8-bit R-2R DAC |
| CAN Interface | Three CAN 2.0B controllers: ch.0 supports 128 msg buffers; ch.1/ch.2 support 64 each; up to 1 Mbps |
| Operating Range | −40 °C to +125 °C ambient temperature; 2.7 V to 5.5 V supply voltage |
| Package | 176-pin LQFP (LQD176), 20 mm × 20 mm, 0.5 mm pitch, RoHS-compliant |
Pinout & Package
Package: 176-pin LQFP (LQD176), 20 mm × 20 mm body, 0.5 mm lead pitch, exposed thermal pad, RoHS-compliant.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDD, VSS | Power supply and ground | Dual 5 V supply domains with internal 1.2 V regulator; decoupling required per datasheet layout guidelines |
| XTAL1/XTAL2 | Main crystal oscillator input/output | Supports 4–16 MHz external crystal; enables PLL clock multiplication up to 80 MHz |
| CLKOUT | Clock output | Configurable output of main clock, sub-clock, or PLL-divided signal for system timing verification |
| CAN0_TX / CAN0_RX | CAN channel 0 differential interface | Direct connection to external CAN transceiver; supports ISO 11898-2 compliant signaling |
| AD0–AD47 | Analog input channels | 48 dedicated ADC input pins mapped across two 12-bit units; shared with GPIO functionality |
| P00–P43 | General-purpose I/O ports | 44 programmable GPIOs (no sub-oscillator config); support interrupt-on-change, pull-up/down, and peripheral multiplexing |
Key Features
| Feature | Design Value |
|---|---|
| FR81S CPU with FPU | Enables deterministic real-time control with floating-point math for motor torque calculation and sensor fusion |
| Triple CAN 2.0B controllers | Allows concurrent communication on powertrain, chassis, and infotainment networks without software arbitration overhead |
| Hardware CRC generator | Accelerates firmware update integrity checks and flash memory ECC correction without CPU intervention |
| MPU with 8 regions | Enforces memory access isolation between safety-critical (ASIL-B) and non-safety tasks in AUTOSAR-compliant designs |
| Low-power Stop/Watch modes | Reduces current to <10 µA while retaining RTC and wakeup capability-critical for always-on vehicle modules |
Applications
| Engine Control Unit (ECU) | Body Control Module (BCM) |
|---|---|
Use Scenario: Real-time combustion timing, fuel injection pulse width, and knock detection using analog sensor inputs. IC Role / Device Role / Timing Role: Primary controller executing ASAM-MCD2 MC calibration loops with sub-10 µs interrupt latency. Use Value: 12.5 ns instruction cycle and 6-cycle interrupt response enable deterministic execution of PID control loops at 10 kHz sampling rate. |
Use Scenario: Centralized door lock actuation, window lift control, and interior lighting sequencing. IC Role / Device Role / Timing Role: System coordinator managing LIN slave nodes (door modules, seat controllers) via integrated LIN interface. Use Value: Built-in LIN 2.1 protocol engine offloads bit-level timing from CPU, reducing firmware complexity and jitter. |
| Advanced Driver Assistance Systems (ADAS) Sensor Hub | Electric Power Steering (EPS) Controller |
Use Scenario: Aggregating radar pre-processed data, camera trigger signals, and ultrasonic sensor outputs. IC Role / Device Role / Timing Role: High-bandwidth data concentrator with DMA-driven CAN/FIFO transfers to central ADAS domain controller. Use Value: 16-channel DMA with 64-step FIFOs per serial interface ensures zero-drop throughput at 1 Mbps CAN and 400 kbps I²C. |
Use Scenario: Torque assist calculation, motor phase commutation, and fault-safe shutdown during steering column overload. IC Role / Device Role / Timing Role: Safety-relevant controller implementing ISO 26262 ASIL-C torque path with redundant ADC sampling. Use Value: Dual 12-bit ADC units with simultaneous sampling and ECC-protected RAM ensure integrity of critical torque feedback paths. |
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 |
|---|---|---|---|
| NXP S32K144 | ARM Cortex-M4F core, 112 MHz max, 512 KB flash, no integrated CAN FD; requires external CAN transceivers | Targets mid-tier ADAS and gateway applications with Ethernet readiness; lacks integrated sub-oscillator RTC calibration | Select when ARM ecosystem toolchain compatibility and future Ethernet expansion are prioritized over CAN message buffer depth |
| Renesas RH850/F1L | 32-bit RXv2 core, 120 MHz, 1 MB flash, dual CAN FD, but no hardware FPU; uses different debug interface (JTAG vs. OCD) | Optimized for high-integrity powertrain control with BIST and lockstep cores; higher pin count (216 LQFP) | Select for ASIL-D functional safety certification paths where lockstep redundancy outweighs floating-point compute needs |
Compared with the CY91F522BSCPMC1-GSE1, the S32K144 offers higher clock speed and ARM toolchain alignment but fewer CAN message buffers and no built-in sub-clock RTC calibration; the RH850/F1L provides stronger safety certification support but lacks IEEE 754 FPU and requires external DAC for analog output.
Availability
CY91F522BSCPMC1-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 CY91F522BSCPMC1-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 global semiconductor leader headquartered in Munich, Germany, specializing in power management, automotive ICs, and security solutions.
This device belongs to the CY91520 Series - Infineon's automotive-qualified 32-bit microcontroller family designed specifically for ASIL-B compliant powertrain, chassis, and body electronics with integrated CAN, LIN, and functional safety peripherals.
FAQ
What is the maximum operating frequency and how is it achieved?
The CY91F522BSCPMC1-GSE1 achieves 80 MHz maximum operation using its on-chip PLL with ×20 multiplication of a 4 MHz external crystal input. The FR81S core executes instructions in 12.5 ns cycles, supported by Harvard architecture for concurrent fetch/execute operations. This frequency is guaranteed across the full −40 °C to +125 °C temperature range with proper power supply decoupling and thermal management per datasheet Section 11.
Does this MCU support functional safety standards like ISO 26262?
Yes - the CY91F522BSCPMC1-GSE1 includes hardware features required for ASIL-B compliance: ECC-protected flash and RAM, memory protection unit (MPU), hardware watchdog timer, clock supervisor with CR oscillator fallback, and NMI-capable error detection. It is qualified per AEC-Q100 Grade 1 and supports diagnostic libraries for ISO 26262 development, though full ASIL-B certification requires system-level integration and validation.
How many CAN message buffers does it provide, and how are they allocated?
The MCU provides 128 message buffers for CAN channel 0 and 64 buffers each for channels 1 and 2. Buffers are organized in transmit/receive FIFOs with configurable acceptance filtering. Channel 0's larger buffer pool is intended for high-priority powertrain traffic (e.g., engine torque messages), while channels 1 and 2 handle chassis and body networks. All three controllers operate independently up to 1 Mbps.
What debug and programming interfaces are supported?
The device supports On-Chip Debug (OCD) via a dedicated 5-pin debug port compatible with Cypress/Infineon debug adapters. It enables full JTAG-style debugging, flash programming, and real-time trace without halting CPU execution. No SWD or SWIM interface is implemented - only OCD with breakpoints, watchpoints, and memory inspection capabilities as defined in the CY91520 Series Hardware User's Manual (Doc No. 002-04663).
CY91F522BSCPMC1-GSE1 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:
CY91F522BSCPMC1-GSE1 FAQ
1.How can I place an order for CY91F522BSCPMC1-GSE1 through Aetrix?
Please submit a Request for Quotation (RFQ) for CY91F522BSCPMC1-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 CY91F522BSCPMC1-GSE1 reliable?
The price and inventory of CY91F522BSCPMC1-GSE1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for CY91F522BSCPMC1-GSE1 is usually 5 days.
3.What payment methods are accepted for CY91F522BSCPMC1-GSE1?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for CY91F522BSCPMC1-GSE1 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for CY91F522BSCPMC1-GSE1?
CY91F522BSCPMC1-GSE1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your CY91F522BSCPMC1-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 CY91F522BSCPMC1-GSE1?
For technical support, including CY91F522BSCPMC1-GSE1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your CY91F522BSCPMC1-GSE1 requirements.
6.How does Aetrix verify that CY91F522BSCPMC1-GSE1 is sourced from the original manufacturer or authorized distributors?
All CY91F522BSCPMC1-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 CY91F522BSCPMC1-GSE1 meets industry standards.
7.What is the process for return or replacement of CY91F522BSCPMC1-GSE1?
All CY91F522BSCPMC1-GSE1 units undergo pre-shipment inspection (PSI). If there is an issue with CY91F522BSCPMC1-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 CY91F522BSCPMC1-GSE1 part is unused and in its original packaging.
Return procedure for CY91F522BSCPMC1-GSE1:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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