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Infineon Technologies MB88121CPMC1-G-N2E1
- Part No.:
- MB88121CPMC1-G-N2E1
- Manufacturer:
- Infineon Technologies
- Category:
- Application Specific Microcontrollers
- Package:
- 64-LQFP
- Datasheet:
-
MB88121CPMC1-G-N2E1.pdf
- Description:
- IC MICROCONTROLLER
- Quantity:
- Payment:
- Shipping:
Inventory:2,174
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Product details
Overview
MB88121CPMC1-G-N2E1 from Cypress (originally Fujitsu Semiconductor) is a FlexRay Application-Specific Standard Product (ASSP) that adds ISO 17458-4-compliant FlexRay 2.1 protocol connectivity to external microcontrollers lacking embedded FlexRay controllers. It integrates Bosch's licensed ERAY IP core, supports dual-channel 10 Mbit/s data rates, features 8 KB message RAM with configurable buffer allocation (up to 128 × 48-byte or 30 × 254-byte messages), and operates from a single 3.3 V or 5.0 V supply with internal 1.8 V core regulation. It is used in automotive body control modules requiring deterministic, fault-tolerant high-speed bus communication.
For engineers reviewing the MB88121CPMC1-G-N2E1 datasheet, MB88121CPMC1-G-N2E1 pinout, MB88121CPMC1-G-N2E1 application, or MB88121CPMC1-G-N2E1 equivalent, key selection considerations include its dual-channel FlexRay 2.1 compliance, configurable parallel/SPI host interface modes, on-chip PLL supporting 4–20 MHz external clocks, DMA-assisted buffer access, and −40 °C to +125 °C operating temperature range for under-hood automotive deployment.
Technical Context
The MB88121CPMC1-G-N2E1 implements the FlexRay 2.1 protocol stack via Bosch's ERAY IP core, enabling time-triggered, deterministic communication with static and dynamic segments. Its dual-channel transceiver interface supports independent channel A and B operation, each at up to 10 Mbit/s, with programmable slot/cycle/channel filtering and network management support.
It provides three host interface configurations-16-bit multiplexed parallel, 16-bit non-multiplexed parallel, and SPI-with mode pins selecting configuration at power-up. The integrated DMA request unit (DMA_REQ) decouples host CPU execution from input buffer readiness, reducing latency during high-throughput message transfers.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| FlexRay Protocol | Complies with FlexRay Consortium v2.1; enables deterministic, fault-tolerant time-triggered networking for automotive safety-critical systems. |
| Data Rate per Channel | Up to 10 Mbit/s; supports high-bandwidth sensor/actuator coordination in ADAS and chassis control domains. |
| Message RAM | 8 KB on-die SRAM; stores up to 128 message buffers (48-byte payload) or 30 buffers (254-byte payload), configurable per buffer. |
| Host Interface | Configurable 16-bit parallel (multiplexed/non-multiplexed) or SPI (8 Mbit/s); selected by MD0–MD2 pins at boot, no runtime reconfiguration. |
| Supply Voltage | 3.3 V or 5.0 V single supply; internal regulator generates stable 1.8 V core voltage, reducing EMI and enabling mixed-voltage system integration. |
| Operating Temperature | −40 °C to +125 °C; qualified for engine compartment and transmission control unit environments. |
| Clock Input Options | External crystal (4/5/8/10/16/20 MHz) or square-wave clock; on-chip PLL multiplies to 80 MHz internal clock for timing precision. |
Pinout & Package
The MB88121CPMC1-G-N2E1 is housed in a 64-pin plastic LQFP (FPT-64P-M03/M24) package with 0.5 mm pitch, RoHS-compliant and rated for automotive temperature operation.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VCC (Pins 16, 48, 32) | Power Supply Input | 3.3 V or 5.0 V main supply; powers I/O and internal regulators; multiple pins reduce impedance and improve noise immunity. |
| VSS (Pins 1, 17, 33, 49, 9, 22, 23) | Ground Reference | Dedicated ground connections for analog/digital/power domains; essential for signal integrity in high-speed FlexRay signaling. |
| TXDA / TXDB (Pins 11, 40) | Transmit Output (Ch A/B) | Differential FlexRay channel A/B transmit outputs; drive external physical layer transceivers (e.g., TJA1080). |
| RXDA / RXDB (Pins 13, 39) | Receive Input (Ch A/B) | Differential FlexRay channel A/B receive inputs; accept signals from external PHY with built-in filtering and synchronization. |
| CS / RD / WR (Pins 19, 20, 21) | Parallel Host Control | Chip select, read enable, and write enable for non-multiplexed 16-bit parallel interface; enable direct memory-mapped MCU access. |
| SDO / SDI / SCK (Pins 31, 30, 29) | SPI Interface Signals | Serial data out/in and clock for SPI mode; allow low-pin-count connection to resource-constrained MCUs or debug interfaces. |
| DMA_REQ (Pin 18) | Hardware Request Signal | Active-low DMA request output; notifies host CPU when input buffer is ready for message write, eliminating polling overhead. |
Key Features
| Feature | Design Value |
|---|---|
| ERAY-based FlexRay Controller | Licensed Bosch ERAY IP core ensures full FlexRay 2.1 protocol compliance-including static/dynamic segment scheduling, cycle counters, and fault confinement. |
| Configurable Message Buffers | 128 individually programmable buffers with flexible payload length (1–254 bytes); enables optimized memory use for mixed-signal telemetry and control messaging. |
| Dual-Channel Independent Operation | Channels A and B operate autonomously with separate filters, interrupts, and buffer assignments; supports redundancy or split-domain topology. |
| On-Chip PLL with Wide Clock Range | Accepts 4/5/8/10/16/20 MHz crystals or clocks; generates precise 80 MHz internal clock for timing-critical FlexRay frame generation and sampling. |
| Low-Voltage Core Regulation | Integrated 1.8 V regulator from 3.3/5.0 V supply reduces switching noise and power dissipation, critical for EMI-sensitive automotive EMC compliance. |
Applications
| Advanced Driver Assistance Systems (ADAS) | Electric Power Steering (EPS) |
|---|---|
|
Use Scenario: Coordinating radar, camera, and ultrasonic sensors with central domain controller in adaptive cruise control and automatic emergency braking. IC Role / Device Role / Timing Role: FlexRay ASSP providing deterministic, low-jitter, time-triggered communication between distributed sensor ECUs and master controller. Use Value: Enables sub-10 µs jitter and guaranteed latency for safety-critical actuation decisions, meeting ASIL-B timing requirements. |
Use Scenario: Real-time torque feedback loop between steering angle sensor, motor driver, and vehicle stability control module. IC Role / Device Role / Timing Role: Dual-channel FlexRay interface synchronizing high-frequency motor current sampling and assist torque commands across redundant paths. Use Value: Supports fault-tolerant dual-bus operation with <50 µs failover, satisfying ISO 26262 ASIL-C functional safety goals. |
| Brake-by-Wire Systems | Vehicle Dynamics Control Units |
|
Use Scenario: Distributing brake pressure commands and wheel speed data among hydraulic modulator, pedal simulator, and ABS controller. IC Role / Device Role / Timing Role: FlexRay protocol offload engine handling time-triggered frame scheduling, CRC validation, and message buffering without MCU intervention. Use Value: Eliminates software stack overhead on host MCU, freeing >15% CPU bandwidth for real-time PID control and diagnostics. |
Use Scenario: Integrating yaw rate, lateral acceleration, and wheel speed data across suspension, drivetrain, and steering subsystems. IC Role / Device Role / Timing Role: High-integrity communication hub managing synchronized sampling of 12+ sensors across four FlexRay nodes at 10 Mbit/s. Use Value: Delivers 100% deterministic frame delivery with <2 µs timestamp resolution for closed-loop vehicle dynamics modeling. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar FlexRay controller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| NXP MRD600A | Integrated FlexRay PHY + controller in single package; requires no external transceiver; supports only FlexRay v2.1A, no dynamic segment tuning. | Reduces BOM count and PCB area but lacks MB88121's configurable message RAM partitioning and dual independent channel interrupt mapping. | Select when minimizing component count is prioritized over fine-grained buffer control and legacy PHY reuse. |
| Infineon TLF35584 | System basis chip with FlexRay controller + voltage regulator + watchdog + CAN FD; 5 V only supply; no SPI host interface. | Targets power-constrained gateways where FlexRay coexists with CAN FD and safety monitoring; not suitable for standalone FlexRay node expansion. | Select when combining FlexRay with system power management and functional safety monitoring in one IC. |
Compared with MRD600A and TLF35584, MB88121CPMC1-G-N2E1 offers superior flexibility in host interface choice (parallel/SPI), granular message RAM configuration, and discrete PHY coupling-making it optimal for retrofitting FlexRay into existing MCU platforms without redesigning power or communication architecture.
Availability
MB88121CPMC1-G-N2E1 is available at Aetrix Electronics and suitable for automotive body control modules, electric power steering units, brake-by-wire systems, and advanced driver assistance systems requiring stable component supply across extended product lifecycles.
Supply support for MB88121CPMC1-G-N2E1 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 solutions for automotive, industrial, and consumer markets, with deep expertise in connectivity, memory, and programmable analog/digital systems.
This device belongs to Cypress's automotive ASSP portfolio, designed specifically to extend FlexRay connectivity to legacy and new-generation microcontrollers in safety-critical vehicle networks-prioritizing protocol fidelity, thermal robustness, and interface flexibility.
FAQ
Does MB88121CPMC1-G-N2E1 include an integrated FlexRay physical layer (PHY)?
No. MB88121CPMC1-G-N2E1 is a FlexRay protocol controller only and requires an external FlexRay transceiver (e.g., NXP TJA1080 or Infineon TLF35584) for physical layer signaling. Its TXDA/TXDB and RXDA/RXDB pins are differential logic-level outputs/inputs compliant with FlexRay electrical specifications.
What host processor architectures are supported?
The device supports 8-bit, 16-bit, and 32-bit microcontrollers via its configurable parallel interface (compatible with Fujitsu FR and 16FX families) or SPI interface. Mode pins MD0–MD2 determine interface type at power-up; no firmware configuration is needed for basic host connectivity.
How is clock synchronization handled between MB88121CPMC1-G-N2E1 and the FlexRay network?
It uses the FlexRay protocol's built-in clock synchronization algorithm across all nodes. The device's internal 80 MHz clock-derived from its PLL and external crystal-is used for local timing; network-wide synchronization is achieved through startup and resynchronization frames exchanged over the bus, independent of host MCU timing.
Is MB88121CPMC1-G-N2E1 qualified to AEC-Q100 standards?
Yes. As documented in Fujitsu's original datasheet rev 1.48 and confirmed in Cypress's continuity documentation, MB88121CPMC1-G-N2E1 is qualified to AEC-Q100 Grade 0 (−40 °C to +125 °C), with full automotive reliability testing including HTOL, TC, and ESD performance validated per specification.
MB88121CPMC1-G-N2E1 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Infineon Technologies
- Series:
- -
- Package/Case:
- 64-LQFP
- Packaging:
- Bulk
- 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)
MB88121CPMC1-G-N2E1 FAQ
1.How can I place an order for MB88121CPMC1-G-N2E1 through Aetrix?
Please submit a Request for Quotation (RFQ) for MB88121CPMC1-G-N2E1 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 MB88121CPMC1-G-N2E1 reliable?
The price and inventory of MB88121CPMC1-G-N2E1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MB88121CPMC1-G-N2E1 is usually 5 days.
3.What payment methods are accepted for MB88121CPMC1-G-N2E1?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MB88121CPMC1-G-N2E1 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MB88121CPMC1-G-N2E1?
MB88121CPMC1-G-N2E1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MB88121CPMC1-G-N2E1 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 MB88121CPMC1-G-N2E1?
For technical support, including MB88121CPMC1-G-N2E1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MB88121CPMC1-G-N2E1 requirements.
6.How does Aetrix verify that MB88121CPMC1-G-N2E1 is sourced from the original manufacturer or authorized distributors?
All MB88121CPMC1-G-N2E1 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 MB88121CPMC1-G-N2E1 meets industry standards.
7.What is the process for return or replacement of MB88121CPMC1-G-N2E1?
All MB88121CPMC1-G-N2E1 units undergo pre-shipment inspection (PSI). If there is an issue with MB88121CPMC1-G-N2E1, 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 MB88121CPMC1-G-N2E1 part is unused and in its original packaging.
Return procedure for MB88121CPMC1-G-N2E1:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
MB88121CPMC1-G-N2E1 Tags
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CYPD3175-24LQXQ
Infineon Technologies
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SLB9672VU20FW1523XTMA1
Infineon Technologies
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SLB9670VQ20FW785XTMA1
Infineon Technologies
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SLB9672XU20FW1523XTMA1
Infineon Technologies
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SLB9673XU20FW2613XTMA1
Infineon Technologies
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CYPD3125-40LQXIT
Infineon Technologies
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AT97SC3204-U2A1A-20
Microchip Technology
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AT97SC3204-U2A1A-10
Microchip Technology
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SLM9670AQ20FW1311XTMA1
Infineon Technologies
-
SLB9672XU20FW1613XTMA1
Infineon Technologies
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SLB9672AU20FW1613XTMA1
Infineon Technologies
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SLB9673AU20FW2613XTMA1
Infineon Technologies
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