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Infineon Technologies MB91F524KHBPMC1-GSE1
- Part No.:
- MB91F524KHBPMC1-GSE1
- Manufacturer:
- Infineon Technologies
- Category:
- Microcontrollers
- Package:
- 144-LQFP
- Datasheet:
-
MB91F524KHBPMC1-GSE1.pdf
- Description:
- IC MCU 32BIT 576KB FLASH 144LQFP
- Quantity:
- Payment:
- Shipping:
Inventory:3,629
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Product details
Overview
MB91F524KHBPMC1-GSE1 from Infineon Technologies (formerly Cypress) is a 32-bit FR81S RISC microcontroller designed for automotive powertrain and body control units. It features 512 KB + 64 KB program flash, 64 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). Used in engine control modules requiring deterministic real-time response and functional safety support.
For engineers reviewing the MB91F524KHBPMC1-GSE1 datasheet, MB91F524KHBPMC1-GSE1 pinout, MB91F524KHBPMC1-GSE1 application, or MB91F524KHBPMC1-GSE1 equivalent, key selection criteria include its 120-pin LQFP package, dual-clock supervision with CR fallback, 48-channel 12-bit ADC (1.4 μs conversion), LIN 2.1 and I²C interfaces, and -40 °C to +125 °C operation with ECC-protected memory.
Technical Context
The MB91F524KHBPMC1-GSE1 implements the FR81S core-a 5-stage pipelined 32-bit RISC architecture with Harvard memory organization, 16×32-bit general-purpose registers, and 16-bit fixed-length instructions executing at 1 instruction/cycle. It supports privilege/user modes with an 8-region MPU and includes hardware multiplier (signed 32-bit × 32-bit in 5 cycles) and IEEE 754 single-precision FPU.
Peripherals are tightly coupled via a multi-layer bus matrix: three independent CAN controllers (128/64 message buffers per channel), 12-channel multi-function serial interface (UART/CSIO/LIN/I²C), 48-channel PPG for LED and motor timing, RTC with subclock calibration, and dual 16-bit base timers configurable as 32-bit cascaded units. Clocking uses on-chip PLL (×1–20), 4–16 MHz main oscillator, 32 kHz sub-oscillator, and 100 kHz CR oscillator with automatic failover.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| CPU Core | FR81S 32-bit RISC, 5-stage pipeline, 16×32-bit GPRs, 16-bit fixed-length instructions |
| Max Operating Frequency | 80 MHz (12.5 ns min instruction time); achieved via PLL ×20 from 4 MHz source |
| Memory | 512 KB + 64 KB program flash, 64 KB main RAM + 8 KB backup RAM, 64 KB WorkFlash |
| Analog Peripherals | 48-channel 12-bit SAR ADC (1.4 μs conversion), 2×8-bit R-2R DAC, RTC with subclock calibration |
| Communication Interfaces | 3×CAN 2.0B (1 Mbps), 12×multi-function serial (UART/CSIO/LIN/I²C), 16×I²C open-drain ports |
| Timing & Control | 48×PPG channels, 3×32-bit free-run timers, 6×waveform generators, 2×16-bit base timers (cascadable) |
| Power & Safety | 2.7–5.5 V supply, -40 °C to +125 °C grade, ECC on flash/RAM, MPU, hardware/software watchdog, LVD reset |
Pinout & Package
MB91F524KHBPMC1-GSE1 is housed in a 120-pin LQFP (14 mm × 14 mm, 0.4 mm pitch) package with exposed thermal pad. Pin functions are defined across five I/O port groups (P0–P4), dedicated peripheral pins (CAN_TX/RX, LIN, UART, CSIO, I²C, ADC, PPG), and system-level signals (VDD/VSS, CLK, RESET, NMI, OSC, SUBOSC).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| P00–P015 | General-purpose I/O / PPG output / ADC input | 16-bit port group supporting simultaneous LED drive, analog sensing, and GPIO reassignment via I/O relocation |
| P10–P115 | General-purpose I/O / CAN0/1/2 signals / LIN | 16-bit port with dedicated CAN TX/RX and LIN transceiver pins; supports level/edge-triggered interrupts |
| P20–P215 | General-purpose I/O / UART/CSIO/I²C / External BUS | 16-bit port with 5 V-tolerant inputs (ch.6/8/9/11), SPI master/slave, and optional external memory interface |
| P30–P315 | General-purpose I/O / ADC input / D/A output / RTC | 16-bit port with 12-bit ADC sampling inputs, 8-bit DAC outputs, and RTC calendar signal routing |
| P40–P415 | General-purpose I/O / Subclock / CR oscillator / Reset | 16-bit port including SUBOSC_IN/OUT, CRCLK, RESETN, and clock supervisor monitoring signals |
| VDD/VSS | Power supply / Ground | Dual 5 V domains: core (via internal 1.2 V regulator) and I/O; separate analog/digital ground planes |
Key Features
| Feature | Design Value |
|---|---|
| Floating-point unit (FPU) | IEEE 754 single-precision compliant; enables real-time math for sensor fusion and closed-loop control without software emulation |
| Memory protection unit (MPU) | 8 configurable regions with privilege/user mode access control; isolates firmware partitions for ASIL-B compliance |
| Error-correcting code (ECC) | On-chip ECC for flash (program/data) and RAM; detects and corrects single-bit errors, prevents silent data corruption |
| Dual-clock supervision | Monitors main (4–16 MHz) and sub (32 kHz) oscillators; auto-switches to 100 kHz CR oscillator on failure-ensures RTC continuity |
| I/O relocation | Runtime remapping of peripheral functions to alternate pins; simplifies PCB layout and enables pin-compatible variants |
| Low-power modes | Sleep/Stop/Watch/Sub RUN modes with selective peripheral retention; achieves <10 μA standby current with RTC active |
Applications
| Engine Control Unit (ECU) | Body Control Module (BCM) |
|---|---|
|
Use Scenario: Real-time combustion timing, fuel injection pulse width calculation, and knock detection using crank/cam sensor inputs. IC Role / Device Role / Timing Role: Primary controller executing deterministic control loops at ≤1 ms intervals with FPU-accelerated PID and lookup table interpolation. Use Value: 80 MHz FR81S core + 48-channel ADC + 48-channel PPG enables synchronized spark/fuel actuation and sensor acquisition within tight jitter bounds. |
Use Scenario: Centralized management of door locks, lighting, wipers, and HVAC via LIN and CAN networks. IC Role / Device Role / Timing Role: Gateway and actuator coordinator with 3 CAN channels (body, powertrain, infotainment) and 12 multi-function serial interfaces. Use Value: Integrated LIN 2.1 support (synch break/delimiter generation) and 16 I²C open-drain ports reduce external transceiver count and BOM cost. |
| Transmission Control Unit (TCU) | Electric Power Steering (EPS) |
|
Use Scenario: Gear shift logic, clutch pressure control, and torque converter lock-up based on vehicle speed, throttle, and temperature sensors. IC Role / Device Role / Timing Role: Safety-aware controller with MPU-enforced partitioning between application and diagnostics firmware. Use Value: ECC-protected memory and hardware watchdog ensure integrity of critical transmission control algorithms under EMI stress. |
Use Scenario: Motor position feedback processing, assist torque calculation, and fault-safe shutdown during steering column overload. IC Role / Device Role / Timing Role: High-precision timing controller with 32-bit free-run timers and 48-channel PPG for PWM-driven brushless motor commutation. Use Value: 1.4 μs ADC conversion and 32-bit timer resolution enable sub-degree motor angle resolution and <10 μs current loop response. |
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/F1L | 32-bit RXv2 core, 120 MHz max, 1.5 MB flash, no integrated FPU; uses different debug interface (JTAG vs. OCD) | Lacks IEEE 754 FPU and WorkFlash; requires external math libraries for floating-point control; higher flash density but larger footprint | Select when legacy RH850 toolchain compatibility or higher flash capacity outweighs need for on-chip FPU acceleration |
| TC375TA | TriCore AURIX™ 32-bit core, 300 MHz, 4 MB flash, integrated safety mechanisms (lockstep cores, memory BIST), no WorkFlash | Targets ASIL-D systems; includes hardware safety monitors absent in MB91F524; significantly higher cost and power consumption | Select only for ASIL-D–certified applications where dual-core lockstep and diagnostic coverage justify cost and complexity |
Compared with RH850/F1L and TC375TA, MB91F524KHBPMC1-GSE1 delivers balanced performance for ASIL-B automotive control-offering on-chip FPU, ECC memory, and flexible peripheral mapping without the overhead of lockstep cores or external math acceleration.
Availability
MB91F524KHBPMC1-GSE1 is available at Aetrix Electronics and suitable for engine control units, body control modules, transmission control units, and electric power steering systems requiring stable component supply across extended automotive lifecycles.
Supply support for MB91F524KHBPMC1-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 ICs, and security solutions, with global R&D and manufacturing infrastructure.
This device belongs to the CY91520 series-Infineon's automotive-qualified 32-bit FR81S microcontroller family targeting powertrain, chassis, and body electronics with integrated safety features and real-time determinism.
FAQ
What is the operating voltage range and temperature grade for MB91F524KHBPMC1-GSE1?
The MB91F524KHBPMC1-GSE1 operates from 2.7 V to 5.5 V and is qualified for -40 °C to +125 °C ambient temperature. Its internal 1.2 V core voltage is generated from the 5 V supply via an on-chip step-down regulator. The device meets AEC-Q100 Grade 1 requirements for automotive use.
Does MB91F524KHBPMC1-GSE1 support CAN FD or only classical CAN 2.0B?
MB91F524KHBPMC1-GSE1 supports only classical CAN 2.0B (ISO 11898-1), with three independent controllers capable of up to 1 Mbps. It does not implement CAN FD frame format, bit rate switching, or extended data length. CAN FD functionality requires migration to Infineon's AURIX™ TC3xx series.
How is flash memory protected against unauthorized access or tampering?
Flash security is enforced via a dedicated key-code register and flash security bit. Once set, it disables external read-out of program memory and blocks JTAG/OCD access to protected regions. Flash ECC detects and corrects single-bit errors, while MPU prevents unintended execution from data sections-providing both confidentiality and integrity.
Can the 120-pin LQFP package be used with standard reflow profiles for lead-free assembly?
Yes-the MB91F524KHBPMC1-GSE1 uses a RoHS-compliant 120-pin LQFP package compatible with IPC/JEDEC J-STD-020D reflow profiles for lead-free soldering. Peak temperature must not exceed 260 °C for ≤30 seconds, and moisture sensitivity level (MSL) is rated at Level 3 per JEDEC J-STD-033.
MB91F524KHBPMC1-GSE1 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, 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:
MB91F524KHBPMC1-GSE1 FAQ
1.How can I place an order for MB91F524KHBPMC1-GSE1 through Aetrix?
Please submit a Request for Quotation (RFQ) for MB91F524KHBPMC1-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 MB91F524KHBPMC1-GSE1 reliable?
The price and inventory of MB91F524KHBPMC1-GSE1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MB91F524KHBPMC1-GSE1 is usually 5 days.
3.What payment methods are accepted for MB91F524KHBPMC1-GSE1?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MB91F524KHBPMC1-GSE1 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MB91F524KHBPMC1-GSE1?
MB91F524KHBPMC1-GSE1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MB91F524KHBPMC1-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 MB91F524KHBPMC1-GSE1?
For technical support, including MB91F524KHBPMC1-GSE1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MB91F524KHBPMC1-GSE1 requirements.
6.How does Aetrix verify that MB91F524KHBPMC1-GSE1 is sourced from the original manufacturer or authorized distributors?
All MB91F524KHBPMC1-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 MB91F524KHBPMC1-GSE1 meets industry standards.
7.What is the process for return or replacement of MB91F524KHBPMC1-GSE1?
All MB91F524KHBPMC1-GSE1 units undergo pre-shipment inspection (PSI). If there is an issue with MB91F524KHBPMC1-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 MB91F524KHBPMC1-GSE1 part is unused and in its original packaging.
Return procedure for MB91F524KHBPMC1-GSE1:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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