My Inquiry
My Account
Infineon Technologies CY91F523FSCPMC-GTE1
- Part No.:
- CY91F523FSCPMC-GTE1
- Manufacturer:
- Infineon Technologies
- Category:
- Microcontrollers
- Package:
- 100-LQFP
- Datasheet:
-
CY91F523FSCPMC-GTE1.pdf
- Description:
- IC MCU 32BIT 448KB FLASH 100LQFP
- Quantity:
- Payment:
- Shipping:
Inventory:4,392
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
CY91F523FSCPMC-GTE1 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, and integrated CAN 2.0B controllers (3 channels, up to 1 Mbps). It features IEEE 754-compliant FPU, memory protection unit (MPU), and operates from -40 °C to +125 °C for engine control units and body electronics.
For engineers reviewing the CY91F523FSCPMC-GTE1 datasheet, CY91F523FSCPMC-GTE1 pinout, CY91F523FSCPMC-GTE1 application, or CY91F523FSCPMC-GTE1 equivalent, key selection criteria include its 100-pin LQFP package, dual 12-bit ADC (max 48 ch), LIN 2.1 support, sub-oscillator clock supervision, and 80 MHz FR81S core with 12.5 ns instruction cycle.
Technical Context
The CY91F523FSCPMC-GTE1 implements a Harvard-architecture FR81S 32-bit RISC CPU with 5-stage pipeline, supporting 16-bit fixed-length instructions at 80 MHz (PLL ×20 from 4 MHz crystal). It integrates dual 12-bit successive-approximation ADCs (1.4 μs conversion), 2× 8-bit D/A converters, and three independent CAN 2.0B controllers with configurable message buffers (128/64 per channel).
Peripheral subsystems include 12-channel multi-function serial interface (UART/CSIO/LIN/I²C), 48-channel PPG for LED/timing control, RTC with sub-clock calibration, and hardware/software watchdog timers. Power management supports Sleep, Stop, Watch, and Sub RUN modes with LVD reset (2.8 V ±8%) and power-on reset.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| CPU Core | FR81S 32-bit RISC, 5-stage pipeline, 16-bit fixed-length instructions, 12.5 ns min. instruction cycle |
| Max Clock Frequency | 80 MHz via on-chip PLL (×20 multiplication from 4 MHz external crystal) |
| Memory | 384 KB + 64 KB program flash, 64 KB WorkFlash, 48 KB main RAM + 8 KB backup RAM |
| Analog Peripherals | Dual 12-bit ADC (up to 48 ch total, 1.4 μs conversion), 2× 8-bit D/A (R-2R) |
| Communication | 3× CAN 2.0B (1 Mbps max), 12× serial channels (UART/CSIO/LIN/I²C), 2× I²C (std/fast mode) |
| Timers & PWM | 48-channel PPG, 3× 16/32-bit free-run timers, 6× 16/32-bit output compare, 6-channel waveform generator |
| Operating Range | -40 °C to +125 °C ambient, 2.7 V to 5.5 V supply, 5 V tolerant I/O on selected pins |
Pinout & Package
Package: 100-pin LQFP (14 mm × 14 mm, 0.5 mm pitch), RoHS-compliant, moisture sensitivity level 3.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDD, VSS | Power supply and ground | 5 V main supply input and return; internal 1.2 V core generated on-chip |
| XIN, XOUT | Main system oscillator | 4–16 MHz crystal connection for PLL reference clock |
| EXCLK | External clock input | Alternative clock source for serial interfaces and timers |
| RESET | Active-low reset input | Asynchronous reset with internal pull-up; triggers POR/LVD recovery sequence |
| CAN0_TX, CAN0_RX | CAN channel 0 differential interface | Direct connection to external CAN transceiver; supports 1 Mbps operation |
| AD00–AD47 | Analog input channels | Configurable as ADC inputs across two 12-bit modules (max 48 ch) |
| DA0, DA1 | Digital-to-analog outputs | 8-bit R-2R DAC outputs for analog signal generation or biasing |
| RTC_CLK | Real-time clock input | 32 kHz sub-oscillator connection for calendar/timekeeping functions |
Key Features
| Feature | Design Value |
|---|---|
| Floating-point unit (FPU) | IEEE 754-compliant 32-bit FPU with 16× 32-bit registers; enables real-time math in motor control |
| Memory protection unit (MPU) | 8 configurable protection areas with privilege/user mode access control; isolates firmware partitions |
| Clock supervision | Dual monitoring of main (4 MHz) and sub (32 kHz) oscillators; automatic switch to CR oscillator on failure |
| Low-power modes | Sleep/Stop/Watch/Sub RUN modes with selective peripheral retention; supports <10 μA standby current |
| On-chip debug (OCD) | Full JTAG-based debugging with real-time trace; no external emulator required for development |
Applications
| Engine Control Unit (ECU) | Body Control Module (BCM) |
|---|---|
Use Scenario: Real-time combustion timing, fuel injection pulse width, and knock detection in gasoline/diesel engines. IC Role / Device Role / Timing Role: Primary MCU executing closed-loop control algorithms with deterministic 80 MHz timing and CAN bus coordination. Use Value: Integrated FPU and dual 12-bit ADC enable precise sensor fusion and fast PID loop execution within 12.5 ns instruction cycles. | Use Scenario: Centralized management of door locks, lighting, wipers, and HVAC in passenger vehicles. IC Role / Device Role / Timing Role: System controller interfacing with LIN slaves (mirrors, seats) and CAN backbone via three independent CAN channels. Use Value: 48 GPIOs, LIN 2.1 support, and sub-oscillator RTC allow synchronized event scheduling and low-power wake-on-LIN functionality. |
| 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: High-integrity data concentrator with ECC-protected flash/RAM and MPU-enforced memory isolation. Use Value: ECC Flash/WorkFlash and ECC RAM ensure data integrity across 10+ years of automotive service life under EMI stress. | Use Scenario: Torque assist calculation, motor phase commutation, and fault-safe shutdown in brushless EPS motors. IC Role / Device Role / Timing Role: Safety-critical actuator controller with ASIL-B capable peripherals and hardware watchdog supervision. Use Value: Hardware watchdog timer, LVD reset, and TPU (Timing Protection Unit) enforce fail-safe torque reduction within defined time windows. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar automotive microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| NXP S32K144HAT0MLHT | ARM Cortex-M4F core (112 MHz), 512 KB flash, no integrated CAN FD; requires external CAN transceivers | Designed for ASIL-B functional safety; includes HSE security engine and AURIX-compatible toolchain | Select when ISO 26262 ASIL-B certification and secure boot are mandatory; avoid if FR81S instruction compatibility is required |
| Renesas RH850/F1L | 32-bit RH850 core (80 MHz), 768 KB flash, 128 KB RAM, 4× CAN FD channels; larger footprint (144-pin LQFP) | Optimized for high-reliability chassis systems; includes lockstep cores and BIST for safety-critical tasks | Select for chassis domain controllers requiring CAN FD bandwidth and lockstep redundancy; not drop-in compatible due to pinout and peripheral register differences |
Compared with NXP S32K144 and Renesas RH850/F1L, the CY91F523FSCPMC-GTE1 offers FR-family instruction compatibility, integrated sub-oscillator supervision, and lower-cost CAN 2.0B implementation-making it optimal for cost-sensitive, non-FD automotive nodes where legacy software reuse is critical.
Availability
CY91F523FSCPMC-GTE1 is available at Aetrix Electronics and suitable for engine control units, body control modules, and ADAS sensor hubs requiring stable component supply across extended automotive temperature ranges (-40 °C to +125 °C) and long lifecycle commitments.
Supply support for CY91F523FSCPMC-GTE1 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 manufacturing and R&D infrastructure.
The CY91520 series-now part of Infineon's automotive MCU portfolio-was originally developed by Cypress to address cost-optimized, high-integrity engine and body control applications using the FR81S architecture and integrated safety peripherals.
FAQ
What is the maximum operating frequency and how is it achieved?
The CY91F523FSCPMC-GTE1 achieves 80 MHz maximum operation using an on-chip PLL with ×20 multiplication from a 4.0 MHz external crystal connected to XIN/XOUT. This configuration yields a 12.5 ns minimum instruction execution time and supports deterministic real-time control loops without external clock synthesis components.
Does this MCU support CAN FD or only classical CAN 2.0B?
This device supports only CAN 2.0B protocol at up to 1 Mbps across three independent channels. It does not implement CAN FD features such as flexible data-rate, extended data length, or CRC enhancements. For CAN FD requirements, consider Infineon's AURIX TC3xx family or NXP S32K3xx devices.
Is the 64 KB WorkFlash electrically erasable and wear-levelled?
Yes, the 64 KB WorkFlash is a dedicated, electrically erasable flash memory block with endurance rated for ≥100,000 write/erase cycles. It supports page erase (1 KB) and full-block erase, and is managed independently from program flash-enabling reliable data logging and parameter storage without disrupting firmware execution.
What debug interface does CY91F523FSCPMC-GTE1 use and is JTAG supported?
The device uses standard JTAG (IEEE 1149.1) for on-chip debug (OCD), supporting full boundary-scan, real-time trace, and flash programming. Debug access is implemented via dedicated TCK/TMS/TDI/TDO pins and requires no SWD conversion; Cypress/Infineon-provided tools (e.g., MiniProg4, J-Link) provide full visibility into registers, memory, and peripheral states during development.
CY91F523FSCPMC-GTE1 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Infineon Technologies
- Package/Case:
- 100-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:
- 76
- 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 37x12b; D/A 2x8b
- Oscillator Type:
- External
- Operating Temperature:
- -40°C ~ 105°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
CY91F523FSCPMC-GTE1 FAQ
1.How can I place an order for CY91F523FSCPMC-GTE1 through Aetrix?
Please submit a Request for Quotation (RFQ) for CY91F523FSCPMC-GTE1 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 CY91F523FSCPMC-GTE1 reliable?
The price and inventory of CY91F523FSCPMC-GTE1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for CY91F523FSCPMC-GTE1 is usually 5 days.
3.What payment methods are accepted for CY91F523FSCPMC-GTE1?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for CY91F523FSCPMC-GTE1 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for CY91F523FSCPMC-GTE1?
CY91F523FSCPMC-GTE1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your CY91F523FSCPMC-GTE1 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 CY91F523FSCPMC-GTE1?
For technical support, including CY91F523FSCPMC-GTE1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your CY91F523FSCPMC-GTE1 requirements.
6.How does Aetrix verify that CY91F523FSCPMC-GTE1 is sourced from the original manufacturer or authorized distributors?
All CY91F523FSCPMC-GTE1 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 CY91F523FSCPMC-GTE1 meets industry standards.
7.What is the process for return or replacement of CY91F523FSCPMC-GTE1?
All CY91F523FSCPMC-GTE1 units undergo pre-shipment inspection (PSI). If there is an issue with CY91F523FSCPMC-GTE1, 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 CY91F523FSCPMC-GTE1 part is unused and in its original packaging.
Return procedure for CY91F523FSCPMC-GTE1:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
CY91F523FSCPMC-GTE1 Tags
-
ATTINY4-TSHR
Microchip Technology
-
ATTINY10-TSHR
Microchip Technology
-
ATTINY10-TS8R
Microchip Technology
-
ATTINY202-SSNR
Microchip Technology
-
ATTINY202-SSFR
Microchip Technology
-
ATTINY402-SSNR
Microchip Technology
-
PIC16F15213T-I/MF
Microchip Technology
-
PIC16F15213-E/MF
Microchip Technology
-
PIC10F200T-I/OT
Microchip Technology
-
ATTINY412-SSNR
Microchip Technology
-
PIC10F202T-I/OT
Microchip Technology
-
ATTINY404-SSNR
Microchip Technology
Tech Hub
Guide to electronic component obsolescence covering EOL risk, PCN/PDN notices, last-time buy planning, replacement options, form-fit-function validation, counterfeit risk and BOM lifecycle management.
18650 battery guide covering lithium-ion cell basics, 3.6V/3.7V voltage, 4.2V charging, mAh and Wh capacity, protected cells, chargers, BMS, series-parallel packs, holders, welding and sourcing checks.…
Hall effect sensor guide covering working principle, linear and digital sensors, Arduino circuits, current sensing, speed detection, automotive applications, A3144 examples, signal filtering and datash…
Product Change Notification guide for electronic components, covering PCN meaning, PCN vs PDN/EOL, common change types, risk levels, form-fit-function review, engineering validation, BOM control, LTB/L…
A practical guide to blend door actuators, covering HVAC function, symptoms, location, AC and heater issues, reset and calibration, replacement cost, electrical diagnosis, compatibility checks, and rep…
Engineering guide to Raspberry Pi alternatives, covering chip-level differences, Orange Pi, ROCK, Jetson, Banana Pi, NanoPi, Compute Module, Pico, GPIO, camera, HAT compatibility, and replacement risks…
Engineering guide to dynamic load response testing for high-current buck converters, covering load step setup, slew rate, Vcore undershoot, overshoot, recovery time, probe location, output capacitors a…
Engineering guide to output capacitor selection for ASIC Vcore rails, covering bulk capacitors, polymer capacitors, MLCC decoupling, DC bias, ESR, ESL, placement, transient response and substitution ri…
Engineering guide to high-current ASIC Vcore rails, covering 12-phase buck architecture, PMBus control, dynamic load testing, output capacitor networks, smart power stage selection, thermal design and …
Voltage regulator guide covering linear, LDO, 7805, Zener, adjustable, buck, VRM and alternator regulators, with design checks, testing methods, troubleshooting and datasheet-based selection.
