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Infineon Technologies CY88121CPMC1-GSE2
- Part No.:
- CY88121CPMC1-GSE2
- Manufacturer:
- Infineon Technologies
- Category:
- Application Specific Microcontrollers
- Package:
- 64-LQFP
- Datasheet:
-
CY88121CPMC1-GSE2.pdf
- Description:
- IC MCU 16BIT 64LQFP
- Quantity:
- Payment:
- Shipping:
Inventory:1,423
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Product details
Overview
CY88121CPMC1-GSE2 from Cypress (originally Fujitsu) is a FlexRay Application-Specific Standard Product (ASSP) that adds full FlexRay 2.1 protocol connectivity to external microcontrollers lacking embedded FlexRay cores. It integrates Bosch's licensed ERAY IP core, supports dual-channel 10 Mbit/s communication, features 8 KB message RAM with up to 128 configurable buffers, and operates from a single 3.3 V or 5.0 V supply with internal 1.8 V core regulation - deployed in automotive body control modules requiring deterministic high-speed bus communication.
For engineers reviewing the CY88121CPMC1-GSE2 datasheet, CY88121CPMC1-GSE2 pinout, CY88121CPMC1-GSE2 application, or CY88121CPMC1-GSE2 equivalent, key selection criteria include parallel/SPI host interface mode configuration, DMA-request support for non-blocking buffer transfers, FlexRay protocol version 2.1 compliance, 64-pin LQFP mechanical compatibility, and temperature range validation for under-hood deployment.
Technical Context
The CY88121CPMC1-GSE2 implements the FlexRay Consortium v2.1 physical and protocol stack via Bosch's ERAY IP core, delivering deterministic time-triggered communication with dual independent channels. It supports dynamic and static segment scheduling, cycle-based message transmission, and network management primitives including cold-start and synchronization.
Host interfacing is configurable at power-up via mode pins: 16-bit multiplexed/non-multiplexed parallel (up to 33 MHz), or SPI (8 Mbit/s). The integrated DMA request unit offloads host CPU by signaling buffer readiness, while on-chip PLL multiplies 4/5/8/10/16/20 MHz external clocks to 80 MHz internal operation.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| FlexRay Protocol Version | v2.1 - Enables time-triggered, fault-tolerant communication with static/dynamic segments and guaranteed latency for safety-critical automotive networks. |
| Data Rate per Channel | 10 Mbit/s - Supports high-bandwidth sensor fusion and actuator coordination in ADAS and chassis control domains. |
| Message RAM Capacity | 8 KB - Stores up to 128 message buffers (48-byte payload) or 30 buffers (254-byte payload), enabling flexible frame allocation per ECU role. |
| Host Interface Options | Configurable 16-bit parallel (multiplexed/non-multiplexed) or SPI - Eliminates need for protocol translation logic and simplifies integration with FR, 16FX, or ARM-based MCUs. |
| Supply Voltage Range | 3.0 V to 5.5 V - Single-rail operation with internal 1.8 V regulator reduces board-level power sequencing complexity and EMI emissions. |
| Operating Temperature | −40 °C to +125 °C - Qualified for engine bay and transmission control unit placement without derating. |
| Package | 64-pin LQFP (0.5 mm pitch, FPT-64P-M03/M24) - Standard surface-mount footprint compatible with automotive-grade reflow profiles. |
Pinout & Package
The CY88121CPMC1-GSE2 is housed in a 64-pin plastic LQFP (FPT-64P-M03/M24) with 0.5 mm pitch, optimized for automotive PCB thermal and mechanical reliability.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VCC / VCC33 (Pins 16, 48, 32) | Power Supply Input | Accepts 3.3 V or 5.0 V main supply; powers I/O and internal regulator - enables single-rail system design. |
| VSS (Pins 1, 17, 33, 49, 9, 22, 23) | Ground Reference | Dedicated ground pins minimize noise coupling between analog (FlexRay PHY) and digital (host interface) domains. |
| X0 / X1 (Pins 3, 2) | Crystal Oscillator Interface | Supports external crystal (4–20 MHz) or clock source; feeds PLL to generate stable 80 MHz internal clock. |
| CS / RD / WR / ALE/AS (Pins 19, 20, 21, 8) | Parallel Host Control | Enable standard microcontroller bus timing - no custom glue logic required for Fujitsu FR or ARM Cortex-M host processors. |
| TXDA / RXDA / TXENA (Pins 11, 13, 12) | FlexRay Channel A Physical Interface | Direct connection to external FlexRay transceiver (e.g., TJA1080); supports differential signaling per ISO 17458-4. |
| SDO / SDI / SCK (Pins 34, 35, 36) | SPI Serial Interface | Enables compact host connection using 3-wire SPI (8 Mbit/s), reducing pin count vs. parallel mode - ideal for space-constrained ECUs. |
| DMA_REQ (Pin 18) | Direct Memory Access Request | Asserts active-low signal when input buffer is ready - allows host CPU to perform other tasks instead of polling, improving real-time response. |
Key Features
| Feature | Design Value |
|---|---|
| ERAY IP Core Integration | Licensed Bosch FlexRay controller compliant with v2.1 specification - eliminates need for software protocol stack development and validation effort. |
| Configurable Message Buffers | Up to 128 individually programmable buffers with variable payload length (up to 254 bytes) - supports mixed-safety and non-safety message scheduling in same ECU. |
| On-Chip Voltage Regulator | Generates stable 1.8 V core supply from 3.3/5.0 V rail - reduces external component count and improves power integrity in noisy automotive environments. |
| Multi-Mode Host Interface | Hardware-selectable parallel (16-bit) or SPI via mode pins - avoids firmware configuration errors and ensures boot-time interface stability. |
| Network Management Support | Full cold-start, cluster synchronization, and node state monitoring - satisfies AUTOSAR-compliant FlexRay stack requirements without host MCU intervention. |
Applications
| Advanced Driver Assistance Systems (ADAS) | Electric Power Steering (EPS) |
|---|---|
|
Use Scenario: Coordinating radar, camera, and ultrasonic sensors with centralized domain controller for adaptive cruise control and automatic emergency braking. IC Role / Device Role / Timing Role: FlexRay ASSP providing deterministic, low-jitter communication backbone between distributed sensors and decision unit. Use Value: Guarantees sub-100 µs end-to-end latency and synchronized sampling across all nodes - critical for closed-loop control timing. |
Use Scenario: Real-time torque feedback loop between steering angle sensor, motor driver, and vehicle dynamics controller. IC Role / Device Role / Timing Role: Dual-channel FlexRay interface managing high-priority torque commands and fault-status reporting with time-triggered scheduling. Use Value: Enables fail-operational behavior via redundant channel arbitration and built-in error containment - meets ASIL-D functional safety goals. |
| Brake-by-Wire Systems | Vehicle Dynamics Control Units |
|
Use Scenario: Distributed brake pressure modulation across four wheel modules with coordinated anti-lock and stability intervention. IC Role / Device Role / Timing Role: FlexRay communication hub synchronizing actuator commands and wheel-speed telemetry across multiple ECUs. Use Value: Provides deterministic bandwidth allocation and cycle-consistent timestamping - essential for cross-axis torque vectoring coordination. |
Use Scenario: Integrating yaw rate, lateral acceleration, and suspension position data for roll stability and traction control algorithms. IC Role / Device Role / Timing Role: Time-triggered message router aggregating sensor inputs and distributing control outputs with nanosecond-level jitter control. Use Value: Delivers <±1 µs clock synchronization accuracy across chassis nodes - enabling precise phase-aligned actuation. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar FlexRay controller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| NXP MRD6001 | Dual-channel FlexRay v2.1 controller with integrated PHY; requires no external transceiver. | Reduces BOM count but increases thermal load; lacks configurable host interface modes (SPI only). | Select when transceiver integration and smaller PCB area outweigh flexibility in host interface choice. |
| Renesas R7F701028 | Integrated FlexRay v2.1 + 32-bit RH850 MCU; fixed 80 MHz core clock; no external message RAM. | Eliminates inter-chip latency but constrains memory layout and firmware portability across platforms. | Select when tight coupling between protocol stack and application code justifies monolithic architecture. |
Compared with MRD6001 and R7F701028, CY88121CPMC1-GSE2 provides superior host interface flexibility, external message RAM scalability, and discrete power domain isolation - making it optimal for modular ECU designs where protocol and application layers evolve independently.
Availability
CY88121CPMC1-GSE2 is available at Aetrix Electronics and suitable for advanced driver assistance systems, electric power steering units, and brake-by-wire modules requiring stable component supply across extended automotive lifecycles.
Supply support for CY88121CPMC1-GSE2 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 (acquired by Infineon in 2019) specialized in high-reliability embedded connectivity and mixed-signal solutions for automotive, industrial, and consumer markets before integration into Infineon's automotive IC portfolio.
CY88121CPMC1-GSE2 belongs to Cypress's legacy FlexRay ASSP product line, designed specifically to enable cost-effective, scalable FlexRay adoption in safety-critical automotive ECUs without requiring embedded protocol stacks.
FAQ
What host microcontrollers are compatible with CY88121CPMC1-GSE2?
The device supports Fujitsu FR30/FR40/FR50 32-bit and 16FX 16-bit MCUs in parallel mode, and any SPI-capable host (e.g., NXP S32K, ST STM32G4) in serial mode. Mode pins MD0–MD2 configure interface type at power-up - no runtime reconfiguration is required, ensuring deterministic boot behavior.
Does CY88121CPMC1-GSE2 include an integrated FlexRay physical layer?
No - CY88121CPMC1-GSE2 is a FlexRay communication controller only and requires an external FlexRay transceiver (e.g., NXP TJA1080 or Infineon TLE9471) for physical layer signaling. This separation allows independent optimization of protocol processing and EMC performance.
How is clock generation handled in CY88121CPMC1-GSE2?
An on-chip PLL accepts external clock inputs of 4, 5, 8, 10, 16, or 20 MHz and generates a precise 80 MHz internal clock with 50% duty cycle. Alternatively, an 80 MHz square wave may be supplied directly to the X1 pin - eliminating PLL jitter concerns in ultra-low-latency applications.
What is the purpose of the SDS, CYCS0, and CYCS pins?
These are debug output pins used during FlexRay cluster development: SDS indicates start of dynamic segment, CYCS0 marks cycle 0 start, and CYCS signals cycle start. All default to low when disabled - they provide visibility into timing behavior without requiring external logic analyzers.
CY88121CPMC1-GSE2 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Infineon Technologies
- Series:
- -
- Package/Case:
- 64-LQFP
- Packaging:
- Tray
- Product Status:
- Obsolete
- Programmable:
- Not Verified
- Applications:
- -
- Core Processor:
- External
- Program Memory Type:
- External Program Memory
- Controller Series:
- -
- RAM Size:
- 8K x 8
- Interface:
- Parallel Host, SPI
- Number of I/O:
- -
- Voltage - Supply:
- 3V ~ 5.5V
- Operating Temperature:
- -40°C ~ 125°C (TA)
- Grade:
- Automotive
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 64-LQFP (10x10)
CY88121CPMC1-GSE2 FAQ
1.How can I place an order for CY88121CPMC1-GSE2 through Aetrix?
Please submit a Request for Quotation (RFQ) for CY88121CPMC1-GSE2 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 CY88121CPMC1-GSE2 reliable?
The price and inventory of CY88121CPMC1-GSE2 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for CY88121CPMC1-GSE2 is usually 5 days.
3.What payment methods are accepted for CY88121CPMC1-GSE2?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for CY88121CPMC1-GSE2 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for CY88121CPMC1-GSE2?
CY88121CPMC1-GSE2 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your CY88121CPMC1-GSE2 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 CY88121CPMC1-GSE2?
For technical support, including CY88121CPMC1-GSE2 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your CY88121CPMC1-GSE2 requirements.
6.How does Aetrix verify that CY88121CPMC1-GSE2 is sourced from the original manufacturer or authorized distributors?
All CY88121CPMC1-GSE2 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 CY88121CPMC1-GSE2 meets industry standards.
7.What is the process for return or replacement of CY88121CPMC1-GSE2?
All CY88121CPMC1-GSE2 units undergo pre-shipment inspection (PSI). If there is an issue with CY88121CPMC1-GSE2, 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 CY88121CPMC1-GSE2 part is unused and in its original packaging.
Return procedure for CY88121CPMC1-GSE2:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
CY88121CPMC1-GSE2 Tags
-
CYPD3175-24LQXQ
Infineon Technologies
-
SLB9672VU20FW1523XTMA1
Infineon Technologies
-
SLB9670VQ20FW785XTMA1
Infineon Technologies
-
SLB9672XU20FW1523XTMA1
Infineon Technologies
-
SLB9673XU20FW2613XTMA1
Infineon Technologies
-
CYPD3125-40LQXIT
Infineon Technologies
-
AT97SC3204-U2A1A-20
Microchip Technology
-
AT97SC3204-U2A1A-10
Microchip Technology
-
SLM9670AQ20FW1311XTMA1
Infineon Technologies
-
SLB9672XU20FW1613XTMA1
Infineon Technologies
-
SLB9672AU20FW1613XTMA1
Infineon Technologies
-
SLB9673AU20FW2613XTMA1
Infineon Technologies
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