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Infineon Technologies CY91F523BSCPMC1-GSE1
- Part No.:
- CY91F523BSCPMC1-GSE1
- Manufacturer:
- Infineon Technologies
- Category:
- Microcontrollers
- Package:
- 64-LQFP
- Datasheet:
-
CY91F523BSCPMC1-GSE1.pdf
- Description:
- IC MCU 32BIT 448KB FLASH 64LQFP
- Quantity:
- Payment:
- Shipping:
Inventory:1,124
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Product details
Overview
CY91F523BSCPMC1-GSE1 from Infineon Technologies (formerly Cypress) is a 32-bit FR81S automotive microcontroller with 384 KB + 64 KB program flash, 48 KB main RAM + 8 KB backup RAM, IEEE 754-compliant FPU, and dual CAN 2.0B controllers supporting up to 1 Mbps. It operates at 80 MHz (12.5 ns instruction cycle), features 44 GPIOs, and targets engine control units and body electronics requiring ASIL-B capable timing and memory protection.
For engineers reviewing the CY91F523BSCPMC1-GSE1 datasheet, CY91F523BSCPMC1-GSE1 pinout, CY91F523BSCPMC1-GSE1 application, or CY91F523BSCPMC1-GSE1 equivalent, key selection criteria include its 12-bit 48-channel ADC (1.4 µs conversion), 3-channel CAN interface with 128-message buffer (ch.0), 64 KB WorkFlash for data logging, and -40°C to +125°C operation with LVD reset at 2.8 V ±8%.
Technical Context
The CY91F523BSCPMC1-GSE1 implements the FR81S 32-bit RISC core with 5-stage pipeline, Harvard architecture, and MPU-enforced privilege/user mode separation across eight configurable memory regions. It integrates dual clock supervision (main 4–16 MHz + sub-32 kHz) with automatic CR oscillator fallback on quartz failure.
Peripheral subsystems include three independent CAN controllers (ch.0: 128 msg buffers; ch.1/ch.2: 64 msg each), 12-channel multi-function serial interface (UART/CSIO/LIN/I²C), and a 16-bit PPG subsystem with LED drive capability on channels 11–14. All A/D and D/A converters are hardware-calibrated and ECC-protected.
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) |
| Memory | 384 KB + 64 KB program flash, 64 KB WorkFlash, 48 KB main RAM + 8 KB backup RAM |
| FPU | IEEE 754-compliant single-precision, 32-bit × 16 register file |
| CAN Interfaces | 3× CAN 2.0B controllers: ch.0 supports 128 message buffers; ch.1/ch.2 support 64 each; up to 1 Mbps |
| ADC/DAC | 12-bit SAR ADC, 48 channels total (32+16), 1.4 µs conversion; 8-bit R-2R DAC, 2 channels |
| Operating Range | -40°C to +125°C ambient; 2.7 V to 5.5 V supply; LVD reset at 2.8 V ±8% |
| Package | 100-pin LQFP (LQH100), 0.5 mm pitch, RoHS-compliant, moisture sensitivity level 3 |
Pinout & Package
Package: 100-pin LQFP (LQH100), 14 mm × 14 mm body, 0.5 mm lead pitch, exposed thermal pad.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDD, VSS | Power supply / Ground | Dual 5 V supply domains with internal 1.2 V regulator; separate analog/digital ground pins reduce noise coupling |
| XIN, XOUT | Main crystal oscillator input/output | Supports 4–16 MHz external quartz; enables PLL clock multiplication (1×–20×) for 80 MHz system clock |
| OSC32IN, OSC32OUT | Sub-clock oscillator input/output | 32.768 kHz crystal connection for RTC and low-power modes; monitored by Clock Supervisor |
| CAN0TX, CAN0RX | CAN channel 0 transmit/receive | Differential signal pair for CAN 2.0B bus; supports 1 Mbps with built-in protocol engine and 128-message FIFO |
| AD00–AD47 | Analog input channels | 48 dedicated ADC inputs mapped across multiple ports; share GPIO functionality with programmable sampling control |
| DA0, DA1 | Digital-to-analog outputs | Two 8-bit R-2R DAC outputs with independent voltage reference; used for sensor biasing or actuator control signals |
Key Features
| Feature | Design Value |
|---|---|
| Memory Protection Unit (MPU) | Eight configurable protection areas enforce privilege/user access control on both code and data memory |
| ECC Protection | End-to-end ECC on flash (program + WorkFlash) and RAM ensures integrity in automotive safety-critical operation |
| Timing Protection Unit (TPU) | Hardware watchdog with configurable timeout and software-clear window prevents runaway code in real-time control loops |
| I/O Relocation | Peripheral function pins can be reassigned via register configuration-enables flexible PCB layout without hardware redesign |
| Low-Power Modes | Sleep, Stop, Watch, and Sub RUN modes with sub-32 kHz RTC active during power shutdown for wake-on-event |
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 controller executing closed-loop combustion algorithms with deterministic 80 MHz execution and CAN-based sensor feedback. Use Value: 12.5 ns instruction cycle and 1.4 µs ADC enable sub-millisecond torque response; dual CAN handles powertrain and diagnostic buses simultaneously. | Use Scenario: Centralized management of door locks, lighting, wipers, and HVAC in premium vehicles. IC Role / Device Role / Timing Role: System coordinator interfacing with LIN slaves (mirrors, seats) and CAN clusters while maintaining ASIL-B compliance. Use Value: Integrated LIN 2.1 controller with synch break generation eliminates external transceivers; 64 KB WorkFlash stores calibration data across vehicle lifetime. |
| Advanced Driver Assistance Systems (ADAS) Sensor Hub | Electric Power Steering (EPS) Controller |
Use Scenario: Aggregating radar, camera, and ultrasonic sensor data before forwarding to central ADAS ECU. IC Role / Device Role / Timing Role: Pre-processing node performing time-synchronized timestamping and sensor fusion preprocessing. Use Value: Hardware CRC generator and ECC RAM ensure data integrity across high-noise chassis environments; RTC with sub-clock calibration maintains accurate event sequencing. | Use Scenario: Torque assist control with motor current sensing, fault detection, and fail-safe torque reduction. IC Role / Device Role / Timing Role: Safety-critical actuator controller with ISO 26262 ASIL-B decomposition support via MPU and TPU. Use Value: Memory Protection Unit enforces strict separation between control code and safety monitor routines; dual CAN channels isolate motor control and vehicle network traffic. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar automotive microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SPC560P50L5CEFAY | Power Architecture e200z0h core, 64 MHz, 512 KB flash, no integrated FPU, 2× CAN | Lacks IEEE 754 FPU and WorkFlash; requires external calibration storage; lower ADC channel count (24) | Preferred where legacy Power Architecture toolchains and AUTOSAR Classic compatibility are required over floating-point math intensity. |
| TC377TP-64F200N-DC | TriCore™ AURIX™ 32-bit core, 200 MHz, 2 MB flash, 256 KB RAM, 3× CAN FD, hardware safety library | Higher performance and ASIL-D ready; supports CAN FD (5 Mbps); larger memory but higher BOM cost and power | Selected when functional safety certification (ISO 26262 ASIL-D) and CAN FD bandwidth are mandatory, not just CAN 2.0B. |
Compared with SPC560P50L5CEFAY and TC377TP-64F200N-DC, the CY91F523BSCPMC1-GSE1 delivers optimal balance of floating-point compute, CAN message buffering depth, and cost-sensitive ASIL-B implementation-especially where WorkFlash-based runtime calibration and sub-32 kHz RTC accuracy are critical.
Availability
CY91F523BSCPMC1-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 extended automotive lifecycles.
Supply support for CY91F523BSCPMC1-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 CY91520 series was developed by Cypress (acquired by Infineon in 2020) specifically for automotive body, chassis, and powertrain applications demanding high reliability, memory safety, and mixed-signal integration in harsh environments.
FAQ
What is the maximum operating frequency and minimum instruction cycle time?
The CY91F523BSCPMC1-GSE1 achieves a maximum system clock of 80 MHz using its on-chip PLL with 4 MHz crystal input and 20× multiplication. This yields a minimum instruction execution time of 12.5 ns per cycle under full pipeline utilization. The FR81S core executes most instructions in one cycle, including bit manipulation and memory-to-memory transfers.
Does this MCU support CAN FD or only classical CAN 2.0B?
This device supports only CAN 2.0B (ISO 11898-1), not CAN FD. It provides three independent CAN controllers with configurable message buffers: channel 0 supports 128 transmit/receive messages, while channels 1 and 2 support 64 each. Bit rates reach up to 1 Mbps, and all controllers include hardware acceptance filtering and error counters compliant with CAN 2.0B specification.
Is the 64 KB WorkFlash electrically erasable and wear-levelled?
Yes, the 64 KB WorkFlash is a dedicated, independently erasable flash bank designed for frequent data writes. It supports byte/word programming and sector erase (4 KB sectors), with endurance rated at 100,000 write/erase cycles per sector. Wear leveling must be implemented in firmware; no hardware wear-leveling engine is present.
What debug interface does CY91F523BSCPMC1-GSE1 provide?
The device integrates On-Chip Debug (OCD) circuitry compatible with standard ARM CoreSight JTAG (IEEE 1149.1) and SWD interfaces. It supports full breakpoint/watchpoint control, real-time memory access, and trace via Embedded Trace Macrocell (ETM). Debug access requires Infineon's DAPLink-compatible debug probe and ModusToolbox IDE.
CY91F523BSCPMC1-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:
- 448KB (448K 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:
CY91F523BSCPMC1-GSE1 FAQ
1.How can I place an order for CY91F523BSCPMC1-GSE1 through Aetrix?
Please submit a Request for Quotation (RFQ) for CY91F523BSCPMC1-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 CY91F523BSCPMC1-GSE1 reliable?
The price and inventory of CY91F523BSCPMC1-GSE1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for CY91F523BSCPMC1-GSE1 is usually 5 days.
3.What payment methods are accepted for CY91F523BSCPMC1-GSE1?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for CY91F523BSCPMC1-GSE1 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for CY91F523BSCPMC1-GSE1?
CY91F523BSCPMC1-GSE1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your CY91F523BSCPMC1-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 CY91F523BSCPMC1-GSE1?
For technical support, including CY91F523BSCPMC1-GSE1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your CY91F523BSCPMC1-GSE1 requirements.
6.How does Aetrix verify that CY91F523BSCPMC1-GSE1 is sourced from the original manufacturer or authorized distributors?
All CY91F523BSCPMC1-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 CY91F523BSCPMC1-GSE1 meets industry standards.
7.What is the process for return or replacement of CY91F523BSCPMC1-GSE1?
All CY91F523BSCPMC1-GSE1 units undergo pre-shipment inspection (PSI). If there is an issue with CY91F523BSCPMC1-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 CY91F523BSCPMC1-GSE1 part is unused and in its original packaging.
Return procedure for CY91F523BSCPMC1-GSE1:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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