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Infineon Technologies CY91F552PMC1-GTE1
- Part No.:
- CY91F552PMC1-GTE1
- Manufacturer:
- Infineon Technologies
- Category:
- Microcontrollers
- Package:
- 64-LQFP
- Datasheet:
-
CY91F552PMC1-GTE1.pdf
- Description:
- IC MCU 32BIT 192KB FLASH 64LQFP
- Quantity:
- Payment:
- Shipping:
Inventory:1,799
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Product details
Overview
CY91F552PMC1-GTE1 from Cypress Semiconductor is a 32-bit FR81S RISC microcontroller designed for automotive control units, featuring an 80 MHz CPU core, 128+64 KB on-chip program flash, 24 KB RAM, and integrated CAN 2.0B controller with 1 Mbps capability. It supports simultaneous 4-channel 12-bit ADC sampling (min. 1.75 μs), LIN 2.1 interface, and dual UART/CSIO serial peripherals - deployed in engine management and body control modules.
For engineers reviewing the CY91F552PMC1-GTE1 datasheet, CY91F552PMC1-GTE1 pinout, CY91F552PMC1-GTE1 application, or CY91F552PMC1-GTE1 equivalent, key selection criteria include its 5 V operation, LQFP-64 package, hardware FPU (IEEE 754), MPU-based memory protection, and automotive-grade peripheral integration including slope compensation and comparator units.
Technical Context
The CY91F552PMC1-GTE1 implements the FR81S CPU core - a 32-bit RISC architecture with 5-stage pipeline, 16 general-purpose registers, and 16-bit fixed-length instructions executing at 1 instruction/cycle. It includes a built-in IEEE 754-compliant FPU and an 8-region MPU supporting privilege/user mode access control.
Peripheral subsystems include two independent 12-bit A/D converters (one with 4-channel simultaneous sampling), a single CAN 2.0B controller (64-message buffer, up to 1 Mbps), three multi-function serial interfaces (UART/CSIO/LIN), and six PWM channels operating up to 200 MHz. Clock generation uses PLL with SSCG, supporting 4–16 MHz crystal input and programmable multiplication (1×–50×).
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| CPU Core | FR81S 32-bit RISC, 5-stage pipeline, 16 GP registers, 16-bit fixed-length instructions |
| Max Operating Frequency | 80 MHz (achieved via PLL ×20 from 4 MHz crystal) |
| Memory | 128+64 KB program flash, 64 KB data flash (WorkFlash), 24 KB RAM |
| A/D Converter | Two units: 8-channel 12-bit (1 μs conv.), and 4-channel simultaneous 12-bit (1.75 μs for all) |
| CAN Interface | 1 channel, CAN 2.0B compliant, 64-message buffer, up to 1 Mbps bit rate |
| Package | LQFP-64, 10 mm × 10 mm, 0.5 mm pitch, RoHS-compliant |
| Supply Voltage | 5 V nominal; internal 1.2 V core generated via on-chip voltage step-down circuit |
| Operating Temperature | −40 °C to +125 °C (automotive grade AEC-Q100 qualified per documentation) |
Pinout & Package
LQFP-64 package with exposed thermal pad; 10 mm × 10 mm footprint, 0.5 mm lead pitch, JEDEC standard outline.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDD, VSS | Power supply / Ground | Dedicated 5 V core I/O supply and return; multiple pins ensure low-impedance distribution |
| XTAL1, XTAL2 | Crystal oscillator input/output | Supports 4–16 MHz fundamental-mode quartz; internal oscillator circuit enables stable clock source |
| MD0, MD1 | Mode configuration inputs | Set boot mode (ROM/flash), debug interface enable, and reset vector location at power-on |
| CAN_TX, CAN_RX | CAN physical layer interface | Differential signaling pair for CAN bus connection; requires external transceiver for bus termination |
| AD0–AD7 | Analog input channels | Eight dedicated pins for first A/D unit; support single-ended or differential sampling |
| ADIN0–ADIN3 | Simultaneous-sampling analog inputs | Four pins for second A/D unit; sampled concurrently with sub-μs inter-channel skew |
| TXD0–TXD2, RXD0–RXD2 | Serial communication I/O | Three full-duplex UART/CSIO/LIN channels; 5 V tolerant with CMOS hysteresis input |
| RESET | Active-low reset input | Asynchronous reset assertion; supports external watchdog or power monitor integration |
Key Features
| Feature | Design Value |
|---|---|
| Floating-point unit (FPU) | IEEE 754-compliant 32-bit FPU with 16 floating-point registers - accelerates motor control and sensor fusion math |
| Memory protection unit (MPU) | 8 configurable protection regions with privilege/user mode access enforcement - enables safe RTOS partitioning |
| Simultaneous 4-channel ADC | Hardware-triggered concurrent sampling across ADIN0–ADIN3 with <1.75 μs total conversion time - critical for phase-current sensing |
| LIN 2.1 protocol engine | Integrated LIN master/slave with synch break/delimiter generation and hard assist - eliminates external LIN transceiver timing logic |
| Slope compensation unit | Dedicated analog block for constant-current unit control - simplifies current-mode DC-DC converter feedback design |
| Low-power modes | Sleep/Stop/Watch modes with selective peripheral retention - reduces quiescent current to <10 μA in Stop mode |
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 MCU executing closed-loop combustion control algorithms with deterministic 80 MHz execution and hardware FPU acceleration. Use Value: Simultaneous 4-channel ADC captures cylinder-specific knock sensor waveforms within 1.75 μs, enabling per-cylinder correction without software overhead. |
Use Scenario: Centralized lighting, door lock, window lift, and HVAC control in premium vehicle platforms. IC Role / Device Role / Timing Role: System coordinator managing LIN slave nodes (e.g., seat modules, mirror controls) and CAN gateway functions. Use Value: Integrated LIN 2.1 engine with synch break generation and hardware assist reduces host CPU load by >40% versus software-only implementations. |
| Electric Power Steering (EPS) | Battery Management System (BMS) Sensor Node |
|
Use Scenario: Torque assist computation and motor phase current regulation in column-assist EPS systems. IC Role / Device Role / Timing Role: Real-time controller interfacing with 3-phase inverter gate drivers and current shunt amplifiers via PWM and ADC. Use Value: Six-channel PWM with 200 MHz resolution supports high-frequency SVM modulation, minimizing torque ripple below 0.5% THD. |
Use Scenario: Cell voltage and temperature monitoring in 12S lithium-ion battery packs with isolated CAN reporting. IC Role / Device Role / Timing Role: Analog front-end processor acquiring 8-cell voltages and thermistor readings while maintaining CAN communication uptime. Use Value: Dual 12-bit ADC units allow interleaved sampling of voltage and temperature channels with <1 μs per conversion - meeting ISO 26262 ASIL-B timing constraints. |
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 (Renesas) | 40 MHz max CPU speed, no integrated FPU, 1 MB flash, 128 KB RAM | Targeted at cost-sensitive body electronics; lacks simultaneous 4-channel ADC and LIN hard assist | Prefer when flash/RAM scalability outweighs real-time analog processing needs |
| S32K144 (NXP) | ARM Cortex-M4F core, 112 MHz, 512 KB flash, 128 KB RAM, no slope compensation unit | Designed for functional safety (ASIL-B certified), broader ecosystem support, but higher BOM cost | Choose when ISO 26262 certification and AUTOSAR compatibility are mandatory |
Compared with RH850/F1L and S32K144, CY91F552PMC1-GTE1 delivers superior analog acquisition performance (simultaneous 4-channel ADC + slope compensation) and LIN protocol offload at lower core frequency - ideal for cost-constrained, analog-intensive automotive subsystems where ASIL-B certification is not required.
Availability
CY91F552PMC1-GTE1 is available at Aetrix Electronics and suitable for engine control units, body control modules, electric power steering systems, and battery sensor nodes requiring stable component supply across extended automotive lifecycles.
Supply support for CY91F552PMC1-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
Cypress Semiconductor (now part of Infineon Technologies) designs high-reliability embedded solutions for automotive, industrial, and consumer applications, emphasizing integration, low-power operation, and system-level IP.
CY91F552PMC1-GTE1 belongs to the MB91550 series - a family of FR81S-based microcontrollers engineered specifically for automotive body and powertrain control, combining real-time analog processing with robust communication interfaces.
FAQ
What is the maximum allowable crystal frequency for CY91F552PMC1-GTE1?
The device supports external crystals from 4 MHz to 16 MHz on XTAL1/XTAL2. The maximum PLL multiplication factor is 20×, yielding a maximum CPU clock of 80 MHz (e.g., 4 MHz × 20). Operation above 16 MHz crystal frequency is not supported per electrical specifications.
Does CY91F552PMC1-GTE1 support JTAG debugging?
Yes, it supports on-chip debugging via the dedicated debug interface using the MD0/MD1 pins to select debug mode at reset. Cypress-provided tools like MiniProg3 and associated IDEs (PSoC Creator legacy toolchain) provide full breakpoint, trace, and register inspection capabilities.
Is the 64 KB WorkFlash field-programmable during normal operation?
Yes, the 64 KB data flash (WorkFlash) supports in-application programming (IAP) with erase/write cycles rated for 100,000 cycles. It can be reprogrammed while the main program executes from the 128+64 KB program flash, enabling firmware update storage and parameter logging.
Can the LIN interface operate independently of the CAN controller?
Yes, the LIN module is fully autonomous - it has its own baud rate generator, synch break timer, and protocol state machine. It requires no interaction with the CAN controller and can run simultaneously on separate serial channels (e.g., LIN on ch.1, CAN on dedicated TX/RX pins).
CY91F552PMC1-GTE1 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Infineon Technologies
- Package/Case:
- 64-LQFP
- Series:
- MB91550
- Packaging:
- Tray
- Product Status:
- Obsolete
- Programmable:
- Not Verified
- Core Processor:
- FR81S
- Core Size:
- 32-Bit Single-Core
- Speed:
- 80MHz
- Connectivity:
- CANbus, CSIO, LINbus, SPI, UART/USART
- Peripherals:
- DMA, LVD, POR, PWM, WDT
- Number of I/O:
- 30
- Program Memory Size:
- 192KB (192K x 8)
- Program Memory Type:
- FLASH
- EEPROM Size:
- -
- RAM Size:
- 24K x 8
- Voltage - Supply (Vcc/Vdd):
- 4.5V ~ 5.5V
- Data Converters:
- A/D 12x12b
- Oscillator Type:
- External
- Operating Temperature:
- -40°C ~ 125°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
CY91F552PMC1-GTE1 FAQ
1.How can I place an order for CY91F552PMC1-GTE1 through Aetrix?
Please submit a Request for Quotation (RFQ) for CY91F552PMC1-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 CY91F552PMC1-GTE1 reliable?
The price and inventory of CY91F552PMC1-GTE1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for CY91F552PMC1-GTE1 is usually 5 days.
3.What payment methods are accepted for CY91F552PMC1-GTE1?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for CY91F552PMC1-GTE1 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for CY91F552PMC1-GTE1?
CY91F552PMC1-GTE1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your CY91F552PMC1-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 CY91F552PMC1-GTE1?
For technical support, including CY91F552PMC1-GTE1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your CY91F552PMC1-GTE1 requirements.
6.How does Aetrix verify that CY91F552PMC1-GTE1 is sourced from the original manufacturer or authorized distributors?
All CY91F552PMC1-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 CY91F552PMC1-GTE1 meets industry standards.
7.What is the process for return or replacement of CY91F552PMC1-GTE1?
All CY91F552PMC1-GTE1 units undergo pre-shipment inspection (PSI). If there is an issue with CY91F552PMC1-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 CY91F552PMC1-GTE1 part is unused and in its original packaging.
Return procedure for CY91F552PMC1-GTE1:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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