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Infineon Technologies CY91F526KSBPMC1-GSE1
- Part No.:
- CY91F526KSBPMC1-GSE1
- Manufacturer:
- Infineon Technologies
- Category:
- Microcontrollers
- Package:
- 144-LQFP
- Datasheet:
-
CY91F526KSBPMC1-GSE1.pdf
- Description:
- IC MCU 32B 1.0625MB FLSH 144LQFP
- Quantity:
- Payment:
- Shipping:
Inventory:1,722
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Product details
Overview
CY91F526KSBPMC1-GSE1 from Infineon Technologies (formerly Cypress) is a 32-bit FR81S RISC microcontroller designed for automotive powertrain and body control modules. It features an 80 MHz CPU, 1024 + 64 KB program flash, 128 KB main RAM + 8 KB backup RAM, IEEE 754-compliant FPU, and triple CAN 2.0B controllers supporting up to 1 Mbps - deployed in engine control units requiring deterministic real-time response.
For engineers reviewing the CY91F526KSBPMC1-GSE1 datasheet, CY91F526KSBPMC1-GSE1 pinout, CY91F526KSBPMC1-GSE1 application, or CY91F526KSBPMC1-GSE1 equivalent, key selection criteria include automotive-grade temperature range (−40 °C to +125 °C), ECC-protected memory, hardware watchdog with NMI support, and LIN 2.1 + I²C + CSIO peripheral integration for multi-protocol vehicle networking.
Technical Context
The CY91F526KSBPMC1-GSE1 implements a 5-stage pipelined FR81S core with Harvard architecture, enabling simultaneous instruction fetch and data access. It integrates a programmable SSCG clock generator supporting 4–16 MHz main oscillation, 32 kHz subclock, and 100 kHz CR oscillator with automatic failover on subclock fault detection.
Peripheral subsystems include three independent CAN controllers (128/64-message buffers), twelve-channel multi-function serial interface (UART/LIN/CSIO/I²C), 48-channel PPG for LED and timing control, and dual 12-bit ADC units delivering 1.4 μs conversion across up to 48 total channels - all managed via 16-channel DMA with software and peripheral request triggers.
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 | 1024 + 64 KB program flash + 64 KB WorkFlash; 128 KB main RAM + 8 KB backup RAM |
| FPU | IEEE 754-compliant single-precision floating-point unit with 32-bit × 16 register file |
| ADC | Two 12-bit successive-approximation units: 32 + 16 channels total, 1.4 μs conversion time |
| CAN Interfaces | Three CAN 2.0B controllers: ch.0 supports 128 message buffers; ch.1/ch.2 support 64 each; up to 1 Mbps |
| Operating Range | −40 °C to +125 °C ambient; 2.7 V to 5.5 V supply with internal 1.2 V regulator |
| Package | LQFP-120 (14 × 14 mm, 0.4 mm pitch), lead-free and RoHS-compliant |
Pinout & Package
LQFP-120 package with exposed thermal pad; 120-pin square outline, 0.4 mm pitch, JEDEC MS-026 compliant. Pin functions validated per Cypress document 002-04662 Rev. *I, pages 12–17.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDD, VSS | Power supply / Ground | Dual 5 V supply domains with dedicated analog/digital ground separation for noise immunity |
| XTAL1, XTAL2 | Main crystal oscillator input/output | Supports 4–16 MHz external quartz; enables PLL clock multiplication up to 80 MHz |
| CLKIN, CLKOUT | External clock input / buffered output | Accepts external clock source; outputs system clock for trace/debug synchronization |
| RESET | Active-low reset input | Asynchronous reset with internal pull-up; compatible with external power-on reset circuits |
| CAN0_TX, CAN0_RX | CAN channel 0 differential signal pair | Direct connection to ISO 11898-compliant transceiver; supports high-speed CAN up to 1 Mbps |
| AD00–AD47 | Analog input channels | 48 total ADC inputs mapped across two 12-bit SAR units; configurable sampling trigger sources |
Key Features
| Feature | Design Value |
|---|---|
| Memory Protection Unit (MPU) | Eight configurable protection regions with privilege/user mode access control for secure firmware partitioning |
| ECC Memory Support | End-to-end error correction on flash (program/data) and RAM - detects/corrects single-bit errors, detects double-bit errors |
| Real-Time Clock (RTC) | Calendar-based timekeeping (year/month/day/hour/min/sec) with subclock or main clock source selection and prescaler calibration |
| Low-Power Modes | Sleep, Stop, Watch, and Sub RUN modes - Stop mode shuts down CPU/core clocks while retaining RAM and RTC state |
| On-Chip Debug (OCD) | Full JTAG-based debug interface with real-time trace, breakpoint, and watchpoint support for AUTOSAR-compliant 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 controller executing AUTOSAR BSW and application SW with deterministic interrupt latency ≤6 cycles. Use Value: Triple CAN interfaces enable concurrent communication with transmission, ABS, and instrument cluster; FPU accelerates PID loop calculations for closed-loop air-fuel ratio control. |
Use Scenario: Centralized management of door locks, lighting, wipers, and HVAC in premium passenger vehicles. IC Role / Device Role / Timing Role: System coordinator interfacing LIN slaves (mirror controls, seat motors) and CAN backbone via integrated protocol stacks. Use Value: 12-channel multi-serial interface supports mixed UART/LIN/CSIO peripherals without external bridging; 120 GPIOs drive discrete loads and read sensor inputs directly. |
| 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 RAM retention during transient voltage dips and CRC-secured firmware updates. Use Value: Dual 12-bit ADCs sample analog sensor outputs at 1.4 μs resolution; 16-channel DMA offloads CPU during burst acquisition without jitter. |
Use Scenario: Torque assist calculation and motor phase commutation in brushless EPS systems under ASIL-B requirements. IC Role / Device Role / Timing Role: Safety-aware controller with TPU (Timing Protection Unit), hardware watchdog, and lockstep-capable peripheral monitoring. Use Value: PPG timers generate precise PWM for 3-phase inverter gate drivers; FPU executes torque vectoring algorithms with <100 ns jitter tolerance. |
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 |
|---|---|---|---|
| SPC5744PFK1AKLQZ | Power Architecture e200z4 core; 200 MHz; 2 MB flash; no integrated FPU; ASIL-D certified | Targeted at higher-ASIL powertrain applications requiring lockstep CPU and safety library certification | Select when full ISO 26262 ASIL-D compliance and dual-core lockstep are mandatory |
| R7F7016883AFP#AA0 | RL78/G23 core; 40 MHz; 1 MB flash; 128 KB RAM; no FPU; LIN/CAN only (no CSIO or PPG) | Cost-sensitive body electronics with lower performance and peripheral count requirements | Select for non-safety-critical BCMs where 80 MHz performance and FPU are unnecessary |
Compared with SPC5744PFK1AKLQZ and R7F7016883AFP#AA0, the CY91F526KSBPMC1-GSE1 delivers balanced performance (80 MHz + FPU), comprehensive peripheral integration (CAN/LIN/CSIO/I²C/PPG), and automotive-grade reliability (−40 °C to +125 °C, ECC, TPU) without ASIL-D overhead or cost premium.
Availability
CY91F526KSBPMC1-GSE1 is available at Aetrix Electronics and suitable for engine control units, body control modules, ADAS sensor hubs, and electric power steering systems requiring stable component supply across extended automotive lifecycles.
Supply support for CY91F526KSBPMC1-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 AG 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 real-time control in powertrain, chassis, and body electronics with functional safety readiness.
FAQ
What is the maximum operating frequency and associated instruction cycle time?
The CY91F526KSBPMC1-GSE1 achieves a maximum CPU frequency 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, confirmed in the official datasheet (Document Number: 002-04662 Rev. *I, page 5).
Does this MCU support ISO 11898-compliant high-speed CAN?
Yes - it integrates three independent CAN 2.0B controllers capable of bit rates up to 1 Mbps. Channel 0 provides 128 message buffers; channels 1 and 2 provide 64 each. All support standard CAN frame formats and error handling per ISO 11898-1.
Is the built-in FPU IEEE 754-compliant and what precision does it support?
The integrated FPU is fully IEEE 754-compliant and supports single-precision (32-bit) floating-point arithmetic only. It includes a 32-bit × 16 register file and executes basic operations like add, multiply, and divide in fixed cycle counts per the FR81S architecture specification.
What package type and pin count does CY91F526KSBPMC1-GSE1 use?
This part uses a 120-pin LQFP package (JEDEC MS-026, 14 × 14 mm body, 0.4 mm pitch) with exposed thermal pad. The "K" in the part number denotes the 120-pin variant; "SBPMC1" indicates lead-free, RoHS-compliant, and automotive-grade qualification per AEC-Q100 Grade 1.
CY91F526KSBPMC1-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, EBI/EMI, I2C, LINbus, SPI, UART/USART
- Peripherals:
- DMA, LVD, POR, PWM, WDT
- Number of I/O:
- 120
- Program Memory Size:
- 1.0625MB (1.0625M x 8)
- Program Memory Type:
- FLASH
- EEPROM Size:
- 64K x 8
- RAM Size:
- 136K 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:
CY91F526KSBPMC1-GSE1 FAQ
1.How can I place an order for CY91F526KSBPMC1-GSE1 through Aetrix?
Please submit a Request for Quotation (RFQ) for CY91F526KSBPMC1-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 CY91F526KSBPMC1-GSE1 reliable?
The price and inventory of CY91F526KSBPMC1-GSE1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for CY91F526KSBPMC1-GSE1 is usually 5 days.
3.What payment methods are accepted for CY91F526KSBPMC1-GSE1?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for CY91F526KSBPMC1-GSE1 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for CY91F526KSBPMC1-GSE1?
CY91F526KSBPMC1-GSE1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your CY91F526KSBPMC1-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 CY91F526KSBPMC1-GSE1?
For technical support, including CY91F526KSBPMC1-GSE1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your CY91F526KSBPMC1-GSE1 requirements.
6.How does Aetrix verify that CY91F526KSBPMC1-GSE1 is sourced from the original manufacturer or authorized distributors?
All CY91F526KSBPMC1-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 CY91F526KSBPMC1-GSE1 meets industry standards.
7.What is the process for return or replacement of CY91F526KSBPMC1-GSE1?
All CY91F526KSBPMC1-GSE1 units undergo pre-shipment inspection (PSI). If there is an issue with CY91F526KSBPMC1-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 CY91F526KSBPMC1-GSE1 part is unused and in its original packaging.
Return procedure for CY91F526KSBPMC1-GSE1:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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