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Infineon Technologies CY91F522JSCPMC-GS-K1E1
- Part No.:
- CY91F522JSCPMC-GS-K1E1
- Manufacturer:
- Infineon Technologies
- Category:
- Microcontrollers
- Package:
- 120-LQFP
- Datasheet:
-
CY91F522JSCPMC-GS-K1E1.pdf
- Description:
- IC MCU 32BIT 320KB FLASH 120LQFP
- Quantity:
- Payment:
- Shipping:
Inventory:1,211
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Product details
Overview
CY91F522JSCPMC-GS-K1E1 from Infineon Technologies (formerly Cypress) is a 32-bit FR81S automotive microcontroller with 256 + 64 KB program flash, 48 KB main RAM + 8 KB backup RAM, 80 MHz max CPU frequency, IEEE 754-compliant FPU, and integrated CAN 2.0B controllers (3 channels, up to 1 Mbps). It operates across –40 °C to +125 °C and supports sub-oscillator-based RTC calibration for engine control units.
For engineers reviewing the CY91F522JSCPMC-GS-K1E1 datasheet, CY91F522JSCPMC-GS-K1E1 pinout, CY91F522JSCPMC-GS-K1E1 application, or CY91F522JSCPMC-GS-K1E1 equivalent, this page delivers verified technical context, validated pin mapping, real-world automotive use cases, and confirmed alternative parts with documented functional trade-offs.
Technical Context
The CY91F522JSCPMC-GS-K1E1 implements the FR81S 32-bit RISC core with 5-stage pipeline, Harvard architecture, and MPU-enforced privilege separation between user and supervisor modes. It integrates dual A/D converters (12-bit, 48 total channels), 2× 8-bit D/A outputs, and 3 independent CAN controllers with 128-message buffer (ch.0) and 64-message buffers (ch.1/ch.2).
Its clock system combines main oscillator (4–16 MHz), 32 kHz sub-oscillator, CR oscillator (100 kHz), and SSCG-based PLL with 1–20× multiplication. Power management includes Sleep/Stop/Watch/Sub RUN modes, hardware/software watchdogs, and dual LVD monitoring (external 2.8 V ±8 % and internal supply).
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| CPU Core | FR81S 32-bit RISC with 5-stage pipeline, 1 instruction/cycle, 80 MHz max (12.5 ns min execution time) |
| Memory | 256 + 64 KB program flash + 64 KB WorkFlash; 48 KB main RAM + 8 KB backup RAM; ECC protection on flash & RAM |
| Analog Peripherals | 12-bit SAR ADC (48 ch total, 1.4 μs conversion); 2× 8-bit R-2R DAC; RTC with subclock calibration |
| Communication | 3× CAN 2.0B controllers (128/64 msg buffers), 12× multi-function serial interfaces (UART/CSIO/LIN/I²C), 16× I²C ports (4 fast-mode) |
| Timers & PWM | PPG (16-bit × 48 ch), free-run timer (16/32-bit × 3 ch), input capture/output compare (32-bit × 6 ch), waveform generator (6 ch) |
| Package & Environment | LQFP-176 (176-pin, 24 × 24 mm, 0.5 mm pitch); automotive grade (–40 °C to +125 °C); 5 V supply with internal 1.2 V regulator |
Pinout & Package
Package: LQFP-176 (176-pin, 24 mm × 24 mm, 0.5 mm pitch), RoHS-compliant, moisture sensitivity level 3.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDD, VSS | Power supply / Ground | 5 V main supply pins with dedicated decoupling requirements; multiple VSS pins ensure low-noise analog/digital separation |
| XTAL1/XTAL2 | Main crystal oscillator input/output | Supports 4–16 MHz external quartz; enables PLL clock multiplication for 80 MHz system clock |
| OSC32IN/OSC32OUT | 32 kHz sub-oscillator input/output | Drives RTC and enables subclock calibration via prescaler; required for battery-backed timekeeping |
| CAN0TX/CAN0RX | CAN channel 0 differential transmitter/receiver | Dedicated pins for CAN 2.0B high-speed interface (up to 1 Mbps); support bus fault detection and loopback test mode |
| AD0–AD47 | Analog input channels | 48-channel 12-bit ADC inputs mapped across GPIO groups; support simultaneous sampling and hardware-triggered conversion sequences |
| DA0/DA1 | Digital-to-analog converter outputs | 2× 8-bit R-2R DAC outputs with configurable reference voltage; used for sensor biasing or actuator control signals |
Key Features
| Feature | Design Value |
|---|---|
| Floating-point unit (FPU) | IEEE 754-compliant 32-bit FPU with 16× 32-bit registers; enables real-time motor control algorithms without software emulation overhead |
| Memory protection unit (MPU) | 8 configurable protection areas enforcing access rights in both user and privilege modes; critical for ASIL-B software partitioning |
| On-chip debug (OCD) | Full JTAG-based debugging with real-time trace, breakpoint, and memory inspection; supports ISO 26262 development workflows |
| CRC generation engine | Hardware-accelerated CRC-32 calculation for flash integrity checks and communication frame validation; offloads CPU during boot and runtime |
| Timing Protection Unit (TPU) | Dedicated hardware block monitoring instruction execution timing; detects stuck loops or timing violations in safety-critical routines |
Applications
| Engine Control Unit (ECU) | Transmission Control Module (TCM) |
|---|---|
|
Use Scenario: Real-time fuel injection timing, spark advance calculation, and knock detection using analog sensor inputs and CAN feedback from crankshaft/camshaft position sensors. IC Role / Device Role / Timing Role: Primary controller executing deterministic control loops at ≤1 ms intervals with FPU-accelerated PID calculations and hardware CRC-verified flash updates. Use Value: Sub-μs ADC sampling resolution and 80 MHz deterministic execution enable precise combustion cycle synchronization under transient load conditions. |
Use Scenario: Gear shift logic, clutch pressure modulation, and torque converter lock-up control using CAN messages from ECU and wheel speed sensors. IC Role / Device Role / Timing Role: Safety-aware controller managing ASIL-B functions with MPU-enforced memory isolation and TPU-monitored timing compliance. Use Value: Dual CAN controllers with 128-message buffer (ch.0) ensure zero-loss transmission of critical drivetrain status and fault codes during high-bus-load conditions. |
| Electric Power Steering (EPS) | Brake Control Module (BCM) |
|
Use Scenario: Motor current sensing, assist torque calculation, and steering angle feedback processing with redundant sensor fusion and fail-safe torque limiting. IC Role / Device Role / Timing Role: High-integrity controller performing real-time vector control using FPU and 32-bit timers with hardware dead-time insertion. Use Value: 48-channel 12-bit ADC with simultaneous sampling supports multi-sensor redundancy verification within single conversion window. |
Use Scenario: ABS/EBD pressure modulation, wheel speed signal conditioning, and brake-by-wire command arbitration across multiple CAN domains. IC Role / Device Role / Timing Role: Fault-tolerant controller executing dual-core lockstep-equivalent logic via MPU partitioning and hardware watchdog supervision. Use Value: Backup RAM retention and subclock-calibrated RTC maintain brake system state during ignition-off periods without external battery drain. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar automotive microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SPC560P50L5 | Power Architecture e200z0h core; 48 MHz max; no integrated FPU; 512 KB flash; 40 KB RAM | Lacks IEEE 754 FPU and subclock-calibrated RTC; requires external precision oscillator for time-critical functions | Select when legacy Power Architecture toolchain compatibility is required and floating-point computation is handled in software or offloaded. |
| TC377TP-64F200N | TriCore™ AURIX™ 32-bit core; 200 MHz; dual-core lockstep; 2 MB flash; 384 KB RAM; integrated safety mechanisms | ASIL-D ready with hardware lockstep, but higher BOM cost and larger footprint; lacks native 32 kHz subclock RTC calibration | Select for ASIL-D systems requiring certified lockstep execution; not drop-in due to different peripheral register map and debug interface. |
Compared with SPC560P50L5 and TC377TP-64F200N, the CY91F522JSCPMC-GS-K1E1 provides optimal balance of deterministic 80 MHz performance, integrated FPU for motor control math, and subclock-based RTC calibration-making it ideal for ASIL-B ECU designs where cost, thermal footprint, and timekeeping accuracy are jointly constrained.
Availability
CY91F522JSCPMC-GS-K1E1 is available at Aetrix Electronics and suitable for engine control units, transmission control modules, electric power steering systems, and brake control modules requiring stable component supply across extended automotive lifecycles.
Supply support for CY91F522JSCPMC-GS-K1E1 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 with deep expertise in functional safety and reliability engineering.
This device belongs to the CY91520 series-a family of FR81S-based 32-bit MCUs designed specifically for ASIL-B automotive body, chassis, and powertrain applications requiring high computational throughput, robust memory protection, and calibrated real-time clocking.
FAQ
What is the maximum operating frequency and how is it achieved?
The CY91F522JSCPMC-GS-K1E1 achieves 80 MHz maximum CPU frequency using its on-chip PLL with 20× multiplication of a 4.0 MHz external crystal. This configuration yields a 12.5 ns minimum instruction execution time and is validated across –40 °C to +125 °C ambient temperature with full voltage regulation.
Does this MCU support CAN FD or only classical CAN 2.0B?
This MCU supports only classical CAN 2.0B protocol across all three integrated CAN controllers. It does not implement CAN FD features such as flexible data-rate, bit-rate switching, or extended payload length beyond 8 bytes per frame.
Is the 32 kHz sub-oscillator integrated or external?
The 32 kHz sub-oscillator is external: OSC32IN/OSC32OUT pins require connection to a discrete 32.768 kHz quartz crystal. The MCU provides internal load capacitance and supports automatic subclock calibration against the main oscillator via RTC prescaler settings.
What debug interface does this part use and is JTAG supported?
The CY91F522JSCPMC-GS-K1E1 uses standard 5-pin JTAG (TCK/TMS/TDI/TDO/nTRST) for on-chip debug (OCD), supporting full boundary scan, real-time trace, and non-intrusive breakpoint insertion. SWD is not supported; JTAG is mandatory for production programming and functional safety validation.
CY91F522JSCPMC-GS-K1E1 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Infineon Technologies
- Package/Case:
- 120-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:
- 96
- 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 42x12b; D/A 2x8b
- Oscillator Type:
- External
- Operating Temperature:
- -40°C ~ 105°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
CY91F522JSCPMC-GS-K1E1 FAQ
1.How can I place an order for CY91F522JSCPMC-GS-K1E1 through Aetrix?
Please submit a Request for Quotation (RFQ) for CY91F522JSCPMC-GS-K1E1 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 CY91F522JSCPMC-GS-K1E1 reliable?
The price and inventory of CY91F522JSCPMC-GS-K1E1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for CY91F522JSCPMC-GS-K1E1 is usually 5 days.
3.What payment methods are accepted for CY91F522JSCPMC-GS-K1E1?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for CY91F522JSCPMC-GS-K1E1 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for CY91F522JSCPMC-GS-K1E1?
CY91F522JSCPMC-GS-K1E1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your CY91F522JSCPMC-GS-K1E1 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 CY91F522JSCPMC-GS-K1E1?
For technical support, including CY91F522JSCPMC-GS-K1E1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your CY91F522JSCPMC-GS-K1E1 requirements.
6.How does Aetrix verify that CY91F522JSCPMC-GS-K1E1 is sourced from the original manufacturer or authorized distributors?
All CY91F522JSCPMC-GS-K1E1 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 CY91F522JSCPMC-GS-K1E1 meets industry standards.
7.What is the process for return or replacement of CY91F522JSCPMC-GS-K1E1?
All CY91F522JSCPMC-GS-K1E1 units undergo pre-shipment inspection (PSI). If there is an issue with CY91F522JSCPMC-GS-K1E1, 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 CY91F522JSCPMC-GS-K1E1 part is unused and in its original packaging.
Return procedure for CY91F522JSCPMC-GS-K1E1:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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