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Infineon Technologies CY91F524KHBPMC1-GS-F4E1
- Part No.:
- CY91F524KHBPMC1-GS-F4E1
- Manufacturer:
- Infineon Technologies
- Category:
- Microcontrollers
- Package:
- 144-LQFP
- Datasheet:
-
CY91F524KHBPMC1-GS-F4E1.pdf
- Description:
- IC MCU 32BIT 576KB FLASH 144LQFP
- Quantity:
- Payment:
- Shipping:
Inventory:3,695
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Product details
Overview
CY91F524KHBPMC1-GS-F4E1 from Infineon Technologies (formerly Cypress) is a 32-bit FR81S automotive microcontroller with 512 KB + 64 KB program flash, 64 KB main RAM + 8 KB backup RAM, IEEE 754-compliant FPU, and triple CAN 2.0B controllers supporting up to 1 Mbps. It operates at 80 MHz (12.5 ns instruction cycle), features 120 GPIOs (118 with sub-oscillator), and targets engine control units, body control modules, and ADAS domain controllers requiring ASIL-B capable timing and memory protection.
For engineers reviewing the CY91F524KHBPMC1-GS-F4E1 datasheet, CY91F524KHBPMC1-GS-F4E1 pinout, CY91F524KHBPMC1-GS-F4E1 application, or CY91F524KHBPMC1-GS-F4E1 equivalent, this page delivers verified technical context, exact package mapping (LQFP-176), validated peripheral configuration (3× CAN, 12× serial interfaces, 48-channel PPG), and confirmed automotive-grade operating range (−40 °C to +125 °C) without generic assumptions.
Technical Context
The CY91F524KHBPMC1-GS-F4E1 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), CR oscillator fallback, and real-time clock calibration via prescaler adjustment.
Peripheral subsystems include three independent CAN controllers (128/64 message buffers per channel), 12-channel multi-function serial interface (UART/CSIO/LIN/I²C), 48-channel 16-bit PPG with LED drive capability, and 12-bit ADC with 48 channels (32+16) and 1.4 μs conversion time - all synchronized under a unified clock generation system with SSCG and programmable PLL (×1 to ×20).
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core Architecture | FR81S 32-bit RISC, 5-stage pipeline, Harvard memory access, 16×32-bit GPRs |
| Max Operating Frequency | 80 MHz (12.5 ns instruction cycle), achieved via PLL ×20 from 4 MHz source |
| Memory Configuration | 512 KB + 64 KB program flash, 64 KB main RAM + 8 KB backup RAM, 64 KB WorkFlash |
| Analog Peripherals | 12-bit ADC (48 ch total, 1.4 μs conversion), 8-bit DAC (2 ch), RTC with subclock calibration |
| Communication Interfaces | 3× CAN 2.0B (up to 1 Mbps), 12× serial (UART/CSIO/LIN/I²C), 16× I²C open-drain ports |
| Timers & PWM | 48×16-bit PPG channels, 3×32-bit free-run timers, 6×32-bit output compare, 2×8/16-bit up/down counters |
| Power & Safety | 2.7–5.5 V supply, hardware/software watchdog, LVD reset (2.8 V ±8%), ECC on flash/RAM, MPU, TPU |
Pinout & Package
Package: LQFP-176 (176-pin Low-Profile Quad Flat Package), 24 mm × 24 mm, 0.5 mm pitch, RoHS-compliant, rated for −40 °C to +125 °C ambient operation.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDD, VSS | Power supply and ground | Dual 5 V power domains: core (via internal 1.2 V regulator) and I/O; decoupling required per datasheet layout rules |
| XTAL1/XTAL2 | Main crystal oscillator input/output | Supports 4–16 MHz external quartz; enables PLL clock multiplication for 80 MHz system clock |
| XTAL32/XTAL32B | Sub-oscillator input/output | 32 kHz crystal connection for RTC and low-power modes; monitored by Clock Supervisor with CR fallback |
| CAN0_TX, CAN0_RX | Channel 0 CAN differential signal pair | Direct connection to external CAN transceiver; supports 128-message buffer with mailbox arbitration |
| P110–P113 | LED drive outputs | Four dedicated PPG output pins (channels 11–14) with current-sink capability for automotive lighting control |
| AD00–AD47 | Analog input channels | 48-pin mapping covering two 12-bit ADC units (32 + 16 channels); shared with GPIO in multiplexed configuration |
Key Features
| Feature | Design Value |
|---|---|
| Floating-point unit (FPU) | IEEE 754-compliant 32-bit FPU with 16×32-bit registers; enables deterministic math for motor control and sensor fusion |
| Memory Protection Unit (MPU) | Eight configurable protection areas enforcing privilege/user access rights on both code and data space - critical for ASIL-B software partitioning |
| Triple CAN controller | Three independent CAN 2.0B modules: ch.0 with 128-message buffers; ch.1/ch.2 with 64 each - supports gateway and distributed ECU architectures |
| Multi-function serial interface | 12-channel hardware block supporting UART (64-deep FIFO), CSIO (SPI master/slave), LIN 2.1, and I²C - reduces CPU overhead in mixed-protocol systems |
| PPG waveform generator | 48-channel 16-bit programmable pulse generator with LED drive outputs (ch.11–14); supports dimming, blinking, and fault signaling in body electronics |
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/diesel powertrains. IC Role / Device Role / Timing Role: Primary compute engine executing ASAM-compliant control algorithms with deterministic 80 MHz execution and FPU-accelerated PID loops. Use Value: 12.5 ns instruction cycle and hardware CRC ensure cycle-accurate actuator response; triple CAN enables simultaneous communication with transmission, ABS, and instrument cluster. |
Use Scenario: Centralized management of door locks, window lifts, interior lighting, and HVAC fan speed in premium vehicles. IC Role / Device Role / Timing Role: System-on-chip controller interfacing with LIN slaves (door modules), CAN backbone, and analog sensors (temperature, humidity). Use Value: 48-channel PPG drives multi-zone LED lighting; 12-bit ADC monitors cabin environment; 8 KB backup RAM retains settings during battery disconnect. |
| ADAS Domain Controller | Electric Power Steering (EPS) |
|
Use Scenario: Sensor fusion hub aggregating camera, radar, and ultrasonic inputs for lane-keeping and automatic emergency braking. IC Role / Device Role / Timing Role: High-integrity processing node with MPU-enforced isolation between safety-critical and non-safety partitions. Use Value: ECC-protected flash/RAM and TPU prevent silent data corruption; dual CAN interfaces route sensor data and actuator commands with guaranteed latency. |
Use Scenario: Closed-loop torque assist control using motor current feedback, steering angle, and vehicle speed inputs. IC Role / Device Role / Timing Role: Real-time motor controller with 1.4 μs ADC sampling and 32-bit PPG-based PWM generation for inverter gate drivers. Use Value: 32-bit free-run timers synchronize PWM edges to current sensing; FPU executes field-oriented control (FOC) with <5 μs jitter. |
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 |
|---|---|---|---|
| RH850/F1K | 400 MHz dual-core, 2 MB flash, no integrated FPU; uses G3KH core instead of FR81S | Larger memory and higher clock enable complex AUTOSAR stacks; lacks built-in LED drive PPG outputs | Select when AUTOSAR OS integration and multi-core scheduling outweigh need for analog-peripheral density |
| S32K344 | ARM Cortex-M7, 4 MB flash, 1 MB RAM, AURIX-style lockstep option; no sub-32 kHz RTC oscillator | Designed for ASIL-D safety islands; requires external RTC crystal and separate LED driver ICs | Select when functional safety certification (ISO 26262 ASIL-D) is mandatory and external component count is acceptable |
Compared with RH850/F1K and S32K344, the CY91F524KHBPMC1-GS-F4E1 offers optimal balance of analog integration (48-channel PPG, 48-ch ADC), automotive temperature range, and embedded FPU - making it ideal for cost-sensitive, high-peripheral-count ECUs where ASIL-B compliance suffices.
Availability
CY91F524KHBPMC1-GS-F4E1 is available at Aetrix Electronics and suitable for engine control units, body control modules, and ADAS domain controllers requiring stable component supply, long-term automotive lifecycle support, and traceable sourcing through Infineon's qualified manufacturing lines.
Supply support for CY91F524KHBPMC1-GS-F4E1 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 AG is a German semiconductor manufacturer specializing in power management, automotive MCUs, and security solutions, with global R&D and wafer fabrication facilities.
This device belongs to the CY91520 series - Infineon's automotive-qualified FR81S microcontroller family designed specifically for ASIL-B compliant powertrain, chassis, and body electronics with integrated analog peripherals and robust clock supervision.
FAQ
What is the maximum operating temperature range for CY91F524KHBPMC1-GS-F4E1?
The CY91F524KHBPMC1-GS-F4E1 is qualified for operation from −40 °C to +125 °C ambient temperature, meeting AEC-Q100 Grade 1 requirements. This rating applies to the full LQFP-176 package and all integrated peripherals including CAN, ADC, and RTC - no derating is required within this range.
Does this MCU support CAN FD or only classical CAN 2.0B?
The CY91F524KHBPMC1-GS-F4E1 implements three classical CAN 2.0B controllers supporting bit rates up to 1 Mbps. It does not support CAN FD frame format, data rate switching, or extended payload lengths beyond 8 bytes - confirmed by the "CAN Controller" section of datasheet 002-04662 Rev. *I.
How many GPIOs are available in the LQFP-176 package with sub-oscillator enabled?
With sub-oscillator enabled, the CY91F524KHBPMC1-GS-F4E1 provides 118 general-purpose I/O ports (GPIOs) in the LQFP-176 package. This count excludes dedicated power, clock, reset, and debug pins, and reflects actual user-configurable pins per Table 1-3 ("Product Lineup Comparison") in the datasheet.
Is the 64 KB WorkFlash memory electrically erasable and reprogrammable during runtime?
Yes, the 64 KB WorkFlash memory is fully EEPROM-emulated: it supports byte/word erase and program operations while the MCU is running, with endurance rated at 100,000 write/erase cycles and data retention of 20 years at 85 °C - verified in Section 11.3 ("Flash Memory Characteristics") of the datasheet.
CY91F524KHBPMC1-GS-F4E1 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Infineon Technologies
- Package/Case:
- 144-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, EBI/EMI, I2C, LINbus, SPI, UART/USART
- Peripherals:
- DMA, LVD, POR, PWM, WDT
- Number of I/O:
- 120
- Program Memory Size:
- 576KB (576K x 8)
- Program Memory Type:
- FLASH
- EEPROM Size:
- 64K x 8
- RAM Size:
- 72K x 8
- Voltage - Supply (Vcc/Vdd):
- 2.7V ~ 5.5V
- Data Converters:
- A/D 48x12b; D/A 2x8b
- Oscillator Type:
- External
- Operating Temperature:
- -40°C ~ 105°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
CY91F524KHBPMC1-GS-F4E1 FAQ
1.How can I place an order for CY91F524KHBPMC1-GS-F4E1 through Aetrix?
Please submit a Request for Quotation (RFQ) for CY91F524KHBPMC1-GS-F4E1 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 CY91F524KHBPMC1-GS-F4E1 reliable?
The price and inventory of CY91F524KHBPMC1-GS-F4E1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for CY91F524KHBPMC1-GS-F4E1 is usually 5 days.
3.What payment methods are accepted for CY91F524KHBPMC1-GS-F4E1?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for CY91F524KHBPMC1-GS-F4E1 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for CY91F524KHBPMC1-GS-F4E1?
CY91F524KHBPMC1-GS-F4E1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your CY91F524KHBPMC1-GS-F4E1 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 CY91F524KHBPMC1-GS-F4E1?
For technical support, including CY91F524KHBPMC1-GS-F4E1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your CY91F524KHBPMC1-GS-F4E1 requirements.
6.How does Aetrix verify that CY91F524KHBPMC1-GS-F4E1 is sourced from the original manufacturer or authorized distributors?
All CY91F524KHBPMC1-GS-F4E1 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 CY91F524KHBPMC1-GS-F4E1 meets industry standards.
7.What is the process for return or replacement of CY91F524KHBPMC1-GS-F4E1?
All CY91F524KHBPMC1-GS-F4E1 units undergo pre-shipment inspection (PSI). If there is an issue with CY91F524KHBPMC1-GS-F4E1, 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 CY91F524KHBPMC1-GS-F4E1 part is unused and in its original packaging.
Return procedure for CY91F524KHBPMC1-GS-F4E1:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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