Infineon Technologies CY90F351ESPMC-GSE1
- Part No.:
- CY90F351ESPMC-GSE1
- Manufacturer:
- Infineon Technologies
- Category:
- Microcontrollers
- Package:
- 64-LQFP
- Datasheet:
-
CY90F351ESPMC-GSE1.pdf
- Description:
- IC MCU 16BIT 64KB FLASH 64LQFP
- Quantity:
- Payment:

- Shipping:

Inventory:1,265
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Product details
Overview
CY90F351ESPMC-GSE1 from Infineon Technologies (formerly Cypress) is a 16-bit F2MC-16LX microcontroller with integrated FULL-CAN 2.0A/B interface, 64 KB Flash memory, and 4 KB RAM. It operates at up to 24 MHz (42 ns instruction cycle), supports 15-channel 8/10-bit ADC (3 µs conversion time), and features dual 16-bit free-run timers, 6-channel input capture, and 4-channel output compare - designed for automotive body control modules requiring robust CAN communication and real-time I/O handling.
For engineers reviewing the CY90F351ESPMC-GSE1 datasheet, CY90F351ESPMC-GSE1 pinout, CY90F351ESPMC-GSE1 application, or CY90F351ESPMC-GSE1 equivalent, key selection criteria include CAN message buffer configuration (16 buffers), sub-clock support (X0A/X1A pins present), PLL clock flexibility (×1–×6 multiplication), and industrial-grade temperature range (−40°C to +125°C).
Technical Context
The CY90F351ESPMC-GSE1 implements the F2MC-16LX CPU core with 24-bit addressing, supporting bit/byte/word/long-word data types and 23 addressing modes. Its CAN controller handles both standard and extended frames, with full-bit compare/mask filtering and automatic retransmission on error - enabling deterministic messaging in distributed automotive networks.
Peripheral integration includes two LIN-UART channels (master/slave capable), one I²C interface (400 kbps), and an external bus interface usable only in external vector mode. The clock supervisor is absent (per MB90F351E/S lineup), but the device includes independent main/sub clock monitoring capability via internal circuitry and supports sleep, stop, watch, and PLL timer low-power modes.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| CPU Core | F2MC-16LX 16-bit RISC architecture with 24-bit addressing and C-language optimization |
| Max Clock Frequency | 24 MHz (PLL ×6 from 4 MHz crystal); enables 42 ns instruction execution for hard real-time tasks |
| Flash Memory | 64 KB single-bank Flash with automatic programming and 10,000 erase cycles - supports field firmware updates |
| CAN Interface | 1 channel FULL-CAN v2.0A/B compliant; 16 configurable message buffers with priority-based transmission |
| ADC | 15-channel 8/10-bit SAR ADC; 3 µs conversion time at 24 MHz - suitable for sensor signal acquisition in engine bay environments |
| Operating Temperature | −40°C to +125°C ambient; qualified for under-hood automotive applications per AEC-Q100 stress testing |
| I/O Ports | 49 general-purpose CMOS I/O pins with programmable Schmitt-trigger/TTL input levels - supports mixed-signal board interfacing |
Pinout & Package
LQFP-64 package (10 mm × 10 mm, 0.5 mm pitch) with exposed thermal pad; RoHS-compliant, lead-free finish.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDD, VSS | Power supply and ground | Dual 3.5–5.5 V core/io supply; internal regulator provides stable 3 V core voltage reducing EMI sensitivity |
| X0A, X1A | Sub-clock oscillator inputs | Supports external 100 kHz crystal for low-power watch/timer operation - confirms S-suffix variant identity |
| CANH, CANL | CAN differential bus terminals | Direct connection to ISO 11898-2 physical layer; supports up to 1 Mbps data rate with built-in fault protection |
| AD0–AD14 | Analog input channels | 15 dedicated ADC input pins; selectable 8-/10-bit resolution and external trigger activation for synchronized sampling |
| INT0–INT7 | External interrupt inputs | 8 configurable edge/level-sensitive interrupts - used for wake-up, fault detection, and event-driven control loops |
Key Features
| Feature | Design Value |
|---|---|
| FULL-CAN 2.0A/B Controller | Hardware-accelerated CAN protocol stack with 16 prioritized message buffers and acceptance filtering - eliminates CPU overhead for CAN frame processing |
| Dual 16-bit Free-Run Timers | FRT0 and FRT1 provide independent timebases for PWM generation, input capture, and output compare - enables precise motor control timing |
| Extended Intelligent I/O Service (EI2OS) | Up to 16-channel DMA-like peripheral triggering without CPU intervention - reduces latency in sensor-to-actuator response paths |
| Flexible Clock System | PLL ×1–×6 multiplication plus sub-clock (50 kHz) option - allows dynamic power/performance trade-offs across operating modes |
| Automotive I/O Configuration | Per-pin selection of CMOS-Schmitt or TTL input thresholds - ensures noise immunity in high-EMI vehicle harness environments |
Applications
| Body Control Module (BCM) | Door Module Controller |
|---|---|
Use Scenario: Centralized management of lighting, window lift, mirror adjustment, and door lock functions in modern passenger vehicles. IC Role / Device Role / Timing Role: Primary CAN node coordinating distributed actuators via standardized UDS diagnostics and OEM-specific message sets. Use Value: 16 CAN message buffers enable concurrent handling of diagnostic requests, status reporting, and actuation commands without software queuing delays. |
Use Scenario: Local control of power windows, side mirrors, and interior lighting within individual door assemblies. IC Role / Device Role / Timing Role: Slave node on low-speed CAN subnetwork; processes LIN-UART commands from BCM while managing local analog sensor inputs. Use Value: Integrated 15-channel ADC and dual free-run timers allow simultaneous sampling of hall-effect position sensors and generation of precise PWM for window motor control. |
| Engine Bay Sensor Hub | Industrial CAN Gateway |
Use Scenario: Aggregation and preprocessing of temperature, pressure, and humidity signals near engine compartments before forwarding over CAN. IC Role / Device Role / Timing Role: Signal conditioning front-end with hardware-triggered ADC conversions synchronized to crankshaft position pulses. Use Value: 3 µs ADC conversion time at 24 MHz ensures sub-millisecond sampling resolution for closed-loop combustion monitoring. |
Use Scenario: Protocol translation between Modbus RTU field devices and higher-layer CANopen networks in factory automation systems. IC Role / Device Role / Timing Role: Dual-interface bridge using LIN-UART for RS-485 Modbus and FULL-CAN for industrial control network connectivity. Use Value: Independent main/sub clock domains allow reliable operation during brown-out conditions - maintaining gateway uptime during power fluctuations. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar 16-bit automotive microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MB90F351E | No sub-clock pins (X0A/X1A omitted); lacks external 100 kHz oscillator support | Not suitable for watch-timer or low-power wake-up use cases requiring sub-clock domain | Select when cost-sensitive designs omit sub-clock functionality and operate exclusively in main-clock mode |
| CY90F352ESPMC-GSE1 | 128 KB dual-bank Flash with concurrent read/write capability; adds flash security feature | Enables secure OTA updates and background firmware validation - required for ASIL-B functional safety compliance | Choose when firmware update integrity, code protection, or AEC-Q100 Grade 1 qualification is mandated |
Compared with MB90F351E, CY90F351ESPMC-GSE1 adds sub-clock support for ultra-low-power wake-up, while CY90F352ESPMC-GSE1 extends Flash capacity and security - making CY90F351ESPMC-GSE1 optimal for cost-constrained, temperature-rugged CAN nodes needing flexible timing domains.
Availability
CY90F351ESPMC-GSE1 is available at Aetrix Electronics and suitable for automotive body control modules, door module controllers, engine bay sensor hubs, and industrial CAN gateways requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for CY90F351ESPMC-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 acquired Cypress Semiconductor in 2020 and maintains its automotive microcontroller portfolio with full technical and supply chain continuity.
The MB90350E series - including CY90F351ESPMC-GSE1 - was engineered specifically for automotive body electronics and industrial CAN networks, emphasizing real-time I/O, EMI resilience, and extended temperature reliability.
FAQ
Is CY90F351ESPMC-GSE1 pin-compatible with MB90F351ES?
Yes - CY90F351ESPMC-GSE1 is a direct replacement for MB90F351ES with identical LQFP-64 pinout, electrical characteristics, and register mapping. Infineon maintains full backward compatibility, including identical reset behavior, clock initialization sequence, and peripheral address layout per the 002-04493 Rev. *A datasheet.
Does this MCU support CAN FD?
No - CY90F351ESPMC-GSE1 implements only Classical CAN (ISO 11898-1, Version 2.0 Part A/B) with maximum 1 Mbps bitrate. It lacks CAN FD framing, CRC extension, and variable bit-rate switching logic. For CAN FD applications, consider Infineon's newer TRAVEO™ T2G or AURIX™ families.
What is the role of the X0A/X1A pins?
X0A and X1A are dedicated inputs for an external 100 kHz sub-clock crystal oscillator. They enable low-power watch timer operation, independent clock domain monitoring, and wake-up from STOP mode - confirming this is the "S" variant (sub-clock enabled) per MB90F351ES product designation.
Can the 15-channel ADC operate simultaneously?
No - the 15-channel ADC uses a single SAR converter with multiplexed inputs; channels are sampled sequentially. However, conversion can be triggered by external events (e.g., timer match or CAN message arrival), and results are stored in dedicated registers - enabling deterministic, jitter-free sampling aligned to system events.
CY90F351ESPMC-GSE1 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Infineon Technologies
- Package/Case:
- 64-LQFP
- Series:
- F²MC-16LX MB90350E
- Packaging:
- Tray
- Product Status:
- Obsolete
- Programmable:
- Not Verified
- Core Processor:
- F²MC-16LX
- Core Size:
- 16-Bit
- Speed:
- 24MHz
- Connectivity:
- CANbus, EBI/EMI, I2C, LINbus, UART/USART
- Peripherals:
- DMA, LVD, POR, WDT
- Number of I/O:
- 51
- Program Memory Size:
- 64KB (64K x 8)
- Program Memory Type:
- FLASH
- EEPROM Size:
- -
- RAM Size:
- 4K x 8
- Voltage - Supply (Vcc/Vdd):
- 3.5V ~ 5.5V
- Data Converters:
- A/D 15x8/10b
- Oscillator Type:
- Internal
- Operating Temperature:
- -40°C ~ 125°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
CY90F351ESPMC-GSE1 FAQ
1.How can I place an order for CY90F351ESPMC-GSE1 through Aetrix?
Please submit a Request for Quotation (RFQ) for CY90F351ESPMC-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 CY90F351ESPMC-GSE1 reliable?
The price and inventory of CY90F351ESPMC-GSE1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for CY90F351ESPMC-GSE1 is usually 5 days.
3.What payment methods are accepted for CY90F351ESPMC-GSE1?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for CY90F351ESPMC-GSE1 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for CY90F351ESPMC-GSE1?
CY90F351ESPMC-GSE1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your CY90F351ESPMC-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 CY90F351ESPMC-GSE1?
For technical support, including CY90F351ESPMC-GSE1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your CY90F351ESPMC-GSE1 requirements.
6.How does Aetrix verify that CY90F351ESPMC-GSE1 is sourced from the original manufacturer or authorized distributors?
All CY90F351ESPMC-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 CY90F351ESPMC-GSE1 meets industry standards.
7.What is the process for return or replacement of CY90F351ESPMC-GSE1?
All CY90F351ESPMC-GSE1 units undergo pre-shipment inspection (PSI). If there is an issue with CY90F351ESPMC-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 CY90F351ESPMC-GSE1 part is unused and in its original packaging.
Return procedure for CY90F351ESPMC-GSE1:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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