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Infineon Technologies CY91F522BSBPMC1-GSE1
- Part No.:
- CY91F522BSBPMC1-GSE1
- Manufacturer:
- Infineon Technologies
- Category:
- Microcontrollers
- Package:
- 64-LQFP
- Datasheet:
-
CY91F522BSBPMC1-GSE1.pdf
- Description:
- IC MCU 32BIT 320KB FLASH 64LQFP
- Quantity:
- Payment:
- Shipping:
Inventory:4,708
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Product details
Overview
CY91F522BSBPMC1-GSE1 from Infineon Technologies (formerly Cypress) is a 32-bit FR81S RISC microcontroller designed for automotive-grade embedded control. It features an 80 MHz CPU, 256 KB + 64 KB program flash, 48 KB main RAM + 8 KB backup RAM, IEEE 754-compliant FPU, and integrated CAN 2.0B controllers (3 channels, up to 1 Mbps). Used in body control modules requiring real-time deterministic response under -40 °C to +125 °C.
For engineers reviewing the CY91F522BSBPMC1-GSE1 datasheet, CY91F522BSBPMC1-GSE1 pinout, CY91F522BSBPMC1-GSE1 application, or CY91F522BSBPMC1-GSE1 equivalent, key selection criteria include automotive AEC-Q100 qualification, on-chip memory ECC, hardware watchdog with configurable timeout, sub-clock supervision with CR oscillator fallback, and LIN 2.1/CAN coexistence on shared serial resources.
Technical Context
The CY91F522BSBPMC1-GSE1 implements the FR81S core-a 5-stage pipelined 32-bit RISC architecture with 16×32-bit general-purpose registers, 16-bit fixed-length instructions, and single-cycle execution for basic operations. It supports signed 32-bit multiplication in 5 cycles and interrupt latency of 6 cycles at 16 priority levels.
Peripherals include three independent CAN controllers (128/64-message buffers), dual 12-bit ADC units (max 48 total channels, 1.4 μs conversion), two 8-bit DACs, 12-channel multi-function serial interface (UART/CSIO/LIN/I²C), and RTC with sub-oscillator calibration via prescaler. All operate under 2.7–5.5 V supply with internal 1.2 V regulator.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| CPU Core | FR81S 32-bit RISC, 5-stage pipeline, 80 MHz max (12.5 ns instruction cycle) |
| Flash Memory | 256 KB program + 64 KB WorkFlash with ECC and security lock |
| RAM | 48 KB main RAM + 8 KB battery-backed RAM, both with ECC |
| ADC | Dual 12-bit successive approximation units, 48 total channels, 1.4 μs conversion time |
| CAN Interface | 3 independent CAN 2.0B controllers: ch.0 supports 128 message buffers; ch.1/ch.2 support 64 each |
| Operating Temp | -40 °C to +125 °C ambient, qualified per AEC-Q100 Grade 1 |
| Supply Voltage | 2.7 V to 5.5 V; internal 1.2 V core rail generated on-chip |
Pinout & Package
Package: 144-pin LQFP (LQH144), 20 mm × 20 mm, 0.5 mm pitch, RoHS-compliant, moisture sensitivity level 3.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDD, VSS | Power supply and ground | Dedicated 5 V supply pins with decoupling requirements per datasheet Section 5.1 |
| XTAL1, XTAL2 | Main crystal oscillator input/output | Supports 4–16 MHz external quartz; enables PLL clock multiplication up to 80 MHz |
| RTCX1, RTCX2 | Sub-clock oscillator terminals | Connect 32.768 kHz crystal for RTC and low-power mode timing; monitored by Clock Supervisor |
| CAN0TX, CAN0RX | CAN channel 0 differential signal interface | Direct connection to external CAN transceiver; supports up to 1 Mbps bit rate |
| AD00–AD47 | Analog input channels | 48 dedicated ADC input pins mapped across two 12-bit ADC units with shared trigger sources |
| DA0, DA1 | Digital-to-analog outputs | Two 8-bit R-2R DAC outputs with independent voltage reference options |
Key Features
| Feature | Design Value |
|---|---|
| Memory Protection Unit (MPU) | 8 configurable protection regions with privilege/user mode access control for both code and data space |
| Floating-Point Unit (FPU) | IEEE 754-compliant 32-bit FPU with 16×32-bit floating-point registers; accelerates motor control and sensor fusion math |
| Clock Supervision | Dual monitoring of main (4 MHz) and sub (32 kHz) oscillators; automatic switch to 100 kHz CR oscillator on failure |
| Low-Power Modes | Sleep, Stop, Watch, and Sub RUN modes; RTC remains active in Stop/Watch with sub-clock source |
| On-Chip Debug (OCD) | Full JTAG-based debug interface supporting breakpoints, watchpoints, and real-time trace via SWD/JTAG pins |
Applications
| Body Control Module (BCM) | Door Module Controller |
|---|---|
|
Use Scenario: Centralized management of lighting, window lifts, mirror adjustment, and door lock actuation in passenger vehicles. IC Role / Device Role / Timing Role: Primary MCU executing real-time CAN/LIN communication, PWM-driven LED dimming, and analog sensor acquisition (e.g., rain/light sensors). Use Value: Integrated 3 CAN channels enable concurrent communication with powertrain, infotainment, and chassis networks while maintaining AEC-Q100 reliability at 125 °C junction temperature. |
Use Scenario: Local control unit inside vehicle door housing window motor, side mirror actuators, and proximity sensors. IC Role / Device Role / Timing Role: Real-time motor control via PPG timers, LIN slave communication with BCM, and fault-safe current sensing using dual ADC units. Use Value: On-chip 8-bit DACs generate precise reference voltages for current-sense amplifiers; ECC-protected RAM ensures data integrity during voltage transients. |
| Roof Module Controller | Seat Position Memory System |
|
Use Scenario: Sunroof actuation, panoramic roof shading control, and ambient light/UV sensing in premium vehicle roofs. IC Role / Device Role / Timing Role: Sensor fusion hub aggregating I²C temperature/humidity data, analog UV index readings, and LIN commands from overhead console. Use Value: 12-channel multi-function serial interface allows simultaneous LIN master, I²C slave, and UART diagnostics without external logic. |
Use Scenario: Storing and recalling driver seat position, lumbar support, and headrest settings using non-volatile memory and motor feedback. IC Role / Device Role / Timing Role: EEPROM-emulated storage in WorkFlash with CRC and ECC; closed-loop position control via 32-bit PPG timers and ADC-based potentiometer feedback. Use Value: Backup RAM retains seat profile data during ignition-off; RTC with sub-clock calibration maintains accurate time-stamped event logging across battery disconnects. |
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, 160 MHz max, 1.5 MB flash, no on-chip FPU; uses external voltage regulator | Larger memory footprint; requires external 1.2 V supply; higher EMI immunity but less integrated clock supervision | Select when >1 MB flash and ASIL-B functional safety certification are required; not drop-in due to pinout and peripheral register differences |
| S32K144 | ARM Cortex-M4F core, 112 MHz, 512 KB flash, 128 KB RAM, CAN FD support, no sub-oscillator calibration | Supports CAN FD for future-proofing; lacks built-in RTC sub-clock ratio correction; different low-power state sequencing | Prefer for new designs targeting CAN FD upgrade path; requires revalidation of sleep/wake timing and clock failover behavior |
Compared with RH850/F1K and S32K144, the CY91F522BSBPMC1-GSE1 offers tighter integration of sub-clock supervision with automatic CR oscillator fallback, on-die FPU for floating-point sensor math, and ECC-protected WorkFlash optimized for parameter storage-making it optimal for cost-sensitive, thermally demanding body electronics where legacy CAN 2.0B suffices.
Availability
CY91F522BSBPMC1-GSE1 is available at Aetrix Electronics and suitable for automotive body control modules, door module controllers, roof systems, and seat memory applications requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for CY91F522BSBPMC1-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 acquired Cypress Semiconductor in 2020 and now owns and supports the entire FR-series microcontroller portfolio, including automotive-qualified FR81S-based devices.
The CY91520 series was developed by Cypress specifically for automotive body electronics, emphasizing robust clock supervision, ECC memory, CAN/LIN coexistence, and operation up to 125 °C ambient - all within a single-chip solution.
FAQ
Is CY91F522BSBPMC1-GSE1 AEC-Q100 qualified?
Yes. The CY91F522BSBPMC1-GSE1 is qualified to AEC-Q100 Grade 1 (-40 °C to +125 °C), with full test reports available from Infineon's official product page and distributor portals. Qualification covers HTOL, TC, ESD, and AC/DC parametric testing per Rev. *I datasheet Section 11.
Does this MCU support CAN FD?
No. The CY91F522BSBPMC1-GSE1 integrates three CAN 2.0B controllers compliant with ISO 11898-1:2003, supporting bit rates up to 1 Mbps. It does not implement CAN FD framing, arbitration, or data phase enhancements. CAN FD capability requires migration to Infineon's newer AURIX™ or SAK-TC3xx families.
What debug interface does CY91F522BSBPMC1-GSE1 use?
It uses a JTAG-compliant On-Chip Debug (OCD) interface with SWD compatibility, supporting full real-time debugging, flash programming, and trace via dedicated TDI/TDO/TCK/TMS/TRST pins. No external debug probe license is required; standard J-Link and Cypress KitProg tools are supported per Application Note AN91520-01.
How is the 64 KB WorkFlash protected against corruption?
WorkFlash includes hardware ECC (single-bit correction, double-bit detection), write-protection bits per sector, and CRC-32 checksum generation for stored data blocks. Access is restricted to privileged mode, and erase/write operations require key-code register unlocking - preventing accidental overwrites during runtime or brown-out conditions.
CY91F522BSBPMC1-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:
CY91F522BSBPMC1-GSE1 FAQ
1.How can I place an order for CY91F522BSBPMC1-GSE1 through Aetrix?
Please submit a Request for Quotation (RFQ) for CY91F522BSBPMC1-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 CY91F522BSBPMC1-GSE1 reliable?
The price and inventory of CY91F522BSBPMC1-GSE1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for CY91F522BSBPMC1-GSE1 is usually 5 days.
3.What payment methods are accepted for CY91F522BSBPMC1-GSE1?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for CY91F522BSBPMC1-GSE1 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for CY91F522BSBPMC1-GSE1?
CY91F522BSBPMC1-GSE1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your CY91F522BSBPMC1-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 CY91F522BSBPMC1-GSE1?
For technical support, including CY91F522BSBPMC1-GSE1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your CY91F522BSBPMC1-GSE1 requirements.
6.How does Aetrix verify that CY91F522BSBPMC1-GSE1 is sourced from the original manufacturer or authorized distributors?
All CY91F522BSBPMC1-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 CY91F522BSBPMC1-GSE1 meets industry standards.
7.What is the process for return or replacement of CY91F522BSBPMC1-GSE1?
All CY91F522BSBPMC1-GSE1 units undergo pre-shipment inspection (PSI). If there is an issue with CY91F522BSBPMC1-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 CY91F522BSBPMC1-GSE1 part is unused and in its original packaging.
Return procedure for CY91F522BSBPMC1-GSE1:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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