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Infineon Technologies CY8CPLC20-28PVXIT
- Part No.:
- CY8CPLC20-28PVXIT
- Manufacturer:
- Infineon Technologies
- Category:
- Modems - ICs and Modules
- Package:
- 28-SSOP (0.209", 5.30mm Width)
- Datasheet:
-
CY8CPLC20-28PVXIT.pdf
- Description:
- IC PLC PSOC CMOS 28SSOP
- Quantity:
- Payment:
- Shipping:
Inventory:4,976
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Product details
Overview
CY8CPLC20-28PVXIT from Infineon Technologies (formerly Cypress Semiconductor) is a single-chip powerline communication (PLC) solution integrating an FSK modem PHY, full network protocol stack (data link, transport, and network layers), and a programmable PSoC 1 mixed-signal microcontroller. It supports bidirectional half-duplex communication up to 2400 bps on AC/DC powerlines, includes 8-bit CRC error detection, and operates with I²C interface at 50/100/400 kHz. Used in smart grid metering, home automation control nodes, and industrial building management systems where wired infrastructure reuse is critical.
For engineers reviewing the CY8CPLC20-28PVXIT datasheet, CY8CPLC20-28PVXIT pinout, CY8CPLC20-28PVXIT application, or CY8CPLC20-28PVXIT equivalent, key selection criteria include FSK carrier frequencies (131.8/133.3 kHz), integrated MAC/PHY co-processing, CENELEC EN 50065-1 and FCC Part 15 compliance support, and PSoC 1's configurable analog/digital blocks for sensor interfacing and local logic.
Technical Context
The CY8CPLC20-28PVXIT implements a dedicated FSK-based physical layer with fixed 131.8 kHz (logic '1') and 133.3 kHz (logic '0') carriers-configurable to 130.4 kHz for wider deviation-and employs a correlator-based receiver with HF bandpass filtering (125–140 kHz), IF filtering, and hysteresis comparator digitization to reject burst noise on lossy powerlines.
Its embedded network protocol provides CSMA-based collision avoidance, 8-bit logical addressing (256 nodes), 16-bit extended addressing (65,536 nodes), and automatic retransmission on packet loss, while the M8C Harvard-architecture core (24 MHz max) executes both PLC stack and user application logic concurrently using 32 KB flash and 2 KB SRAM.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Modulation | Frequency Shift Keying (FSK) with fixed 131.8/133.3 kHz carriers; 130.4 kHz option enables wider spectral separation for improved noise immunity. |
| Max Data Rate | 2400 bps raw physical layer rate; supports reliable half-duplex communication over high-impedance, noisy AC/DC powerlines. |
| Protocol Layers | Integrated data link, transport, and network layers per ISO/OSI model; includes CSMA, ACK-based retransmission, and 8-bit CRC for end-to-end packet integrity. |
| Processor Core | M8C 8-bit Harvard architecture running at up to 24 MHz; supports concurrent execution of PLC stack and user firmware. |
| Memory | 32 KB flash (50,000 erase/write cycles) for program storage; 2 KB SRAM for runtime variables; EEPROM emulation in flash. |
| I²C Interface | Slave, master, and multi-master capable; supports 50 kHz, 100 kHz, and 400 kHz modes for host MCU or sensor bridge connectivity. |
| Analog Resources | 12 programmable analog PSoC blocks: support up to 14-bit ADCs, 9-bit DACs, PGAs, and active filters for local signal conditioning. |
Pinout & Package
Package: 28-pin SSOP (Small Outline Integrated Circuit, Plastic, Shrink), body width 7.5 mm, lead pitch 0.65 mm, JEDEC MS-013AC compliant. RoHS-compliant, Pb-free finish.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDD | Core power supply | 3.3 V ±10% main supply for digital and analog subsystems; requires local decoupling. |
| VSS | Digital ground | Reference return for all digital logic and I/O; must be connected to system ground plane. |
| P0[0]–P0[7] | General-purpose I/O | Configurable as GPIO, analog input (up to 12 channels), or digital peripheral pins (UART/SPI/I²C); 25 mA sink capability. |
| SCL, SDA | I²C bus interface | Dedicated open-drain pins supporting standard/fast-mode I²C up to 400 kHz; internal pull-ups disabled by default. |
| PLC_TX, PLC_RX | Powerline transceiver interface | Differential output (TX) and input (RX) for coupling circuit connection; require external LC filter and isolation transformer. |
| XIN, XOUT | Crystal oscillator terminals | Drive external 12 MHz crystal for system clock; internal load capacitors configurable via register. |
| RESET | Active-low reset input | Asynchronous reset pin; asserted low resets M8C core, peripherals, and PLC state machine. |
Key Features
| Feature | Design Value |
|---|---|
| Integrated PLC PHY + Protocol Stack | Eliminates need for external protocol processor or discrete modem IC; reduces BOM count and PCB area in metering and control nodes. |
| Programmable Analog Blocks | 12 rail-to-rail analog PSoC blocks enable on-chip sensor signal conditioning (e.g., current sensing, voltage monitoring) without external op-amps or ADCs. |
| CSMA-Based Network Arbitration | Prevents packet collisions in multi-node deployments (e.g., streetlight networks), enabling scalable topologies with up to 65,536 logical addresses. |
| Regulatory-Compliant Reference Designs | Validated 110 V/240 V AC and 12 V/24 V AC/DC coupling circuits meet CENELEC EN 50065-1:2001 and FCC Part 15 emission limits out-of-box. |
| Full-Duplex UART Support | Up to four UARTs configurable across GPIO pins; enables local debug, sensor telemetry, or gateway bridging without external level shifters. |
Applications
| Smart Electricity Metering | Home Automation Control Node |
|---|---|
Use Scenario: Two-way communication between utility meters and concentrators over existing 240 V AC wiring in residential distribution networks. IC Role / Device Role / Timing Role: Full PLC transceiver and protocol engine; handles physical layer modulation/demodulation, MAC arbitration, and network-layer routing for AMI infrastructure. Use Value: Enables firmware-upgradable metering with <2400 bps throughput and 8-bit CRC validation, meeting ANSI C12.22 and DLMS/COSEM over PLC requirements. | Use Scenario: Central hub in retrofit home automation systems using 12 V DC power rails (e.g., LED lighting control, HVAC zone sensors). IC Role / Device Role / Timing Role: Local PLC node controller with integrated analog sensing (temperature, occupancy) and I²C host interface to microcontroller or cloud gateway. Use Value: Reduces component count by combining PLC PHY, protocol stack, and sensor front-end in one chip; eliminates separate modem + MCU + ADC design. |
| Industrial Building Management | Streetlight Remote Monitoring |
Use Scenario: Interconnecting HVAC controllers, lighting panels, and energy monitors across 110 V AC building wiring in commercial facilities. IC Role / Device Role / Timing Role: Network node with CSMA-enabled multi-master capability; manages time-critical command acknowledgments and periodic status reporting. Use Value: Supports deterministic latency under 100 ms for control loops and maintains >99.5% packet delivery in electrically noisy environments per EN 50065-1. | Use Scenario: Individual lamp controller communicating fault status, dimming commands, and energy usage over municipal 240 V AC street lighting circuits. IC Role / Device Role / Timing Role: Edge PLC node with 16-bit extended addressing; performs local decision-making (e.g., dusk/dawn detection) and forwards aggregated data via PLC backbone. Use Value: Enables firmware-defined node behavior and remote diagnostics without deploying new cabling; leverages existing infrastructure for O&M cost reduction. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar powerline communication applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| ST7580 | Dedicated narrowband PLC modem (no integrated MCU); requires external microcontroller for protocol stack and application logic. | Lacks on-chip processing; suitable only when host MCU handles MAC/network layers and analog peripherals are external. | Select when system already uses ST7580-compatible firmware stack and requires minimal analog integration. |
| MAX2992 | G3-PLC compliant OFDM PHY only; no built-in protocol stack or programmable logic; supports higher data rates (up to 300 kbps) but requires external G3-PLC stack implementation. | Targets newer smart grid deployments requiring G3-PLC certification; not compatible with legacy FSK-based CENELEC/FCC designs. | Choose for greenfield G3-PLC projects needing interoperability with EU/US utility standards, not for retrofit FSK systems. |
Compared with ST7580 and MAX2992, CY8CPLC20-28PVXIT uniquely integrates FSK PHY, full OSI Layer 2–3 protocol stack, and PSoC 1 programmable logic/analog resources - enabling complete PLC node functionality in one chip without external processors or protocol firmware development.
Availability
CY8CPLC20-28PVXIT is available at Aetrix Electronics and suitable for smart electricity metering, home automation control nodes, and industrial building management systems requiring stable component supply, long-term lifecycle support, and regulatory-compliant powerline communication capability.
Supply support for CY8CPLC20-28PVXIT 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, industrial, and IoT solutions, with global R&D, manufacturing, and support infrastructure.
CY8CPLC20 belongs to Infineon's legacy PSoC 1 PLC product line, designed specifically for cost-sensitive, medium-data-rate powerline communication nodes in smart grid, building automation, and industrial control applications where integration of PHY, protocol, and local processing is essential.
FAQ
What powerline voltage ranges does CY8CPLC20-28PVXIT support?
CY8CPLC20-28PVXIT supports coupling to 110 V/240 V AC and 12 V/24 V AC/DC powerlines using Infineon's validated reference designs. Its FSK PHY and programmable gain amplifier allow operation across this range with appropriate external coupling circuitry, including compliance with CENELEC EN 50065-1:2001 and FCC Part 15 emission limits.
Does CY8CPLC20-28PVXIT require an external microcontroller?
No. The device integrates a 24 MHz M8C processor core, 32 KB flash, and 2 KB SRAM, enabling standalone execution of both the PLC protocol stack and custom application firmware. External MCUs are unnecessary unless interfacing with non-I²C peripherals or requiring additional compute resources beyond PSoC 1's capabilities.
How is the FSK carrier frequency configured?
The default FSK carrier frequencies are 131.8 kHz (logic '1') and 133.3 kHz (logic '0'). A configuration bit allows switching the logic '1' frequency to 130.4 kHz for increased frequency deviation, improving noise margin in high-interference environments. Configuration is performed via internal registers during initialization.
Can CY8CPLC20-28PVXIT operate without an external crystal?
No. The device requires an external 12 MHz crystal connected to XIN/XOUT pins to generate the precise timing needed for FSK modulation and demodulation. Internal oscillators lack the stability required for compliant PLC operation; the datasheet specifies crystal tolerance ≤50 ppm for CENELEC/FCC conformance.
CY8CPLC20-28PVXIT Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Infineon Technologies
- Series:
- -
- Package/Case:
- 28-SSOP (0.209", 5.30mm Width)
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Data Format:
- FSK
- Baud Rates:
- 2.4k
- Voltage - Supply:
- 4.75V ~ 5.25V
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 28-SSOP
CY8CPLC20-28PVXIT FAQ
1.How can I place an order for CY8CPLC20-28PVXIT through Aetrix?
Please submit a Request for Quotation (RFQ) for CY8CPLC20-28PVXIT 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 CY8CPLC20-28PVXIT reliable?
The price and inventory of CY8CPLC20-28PVXIT are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for CY8CPLC20-28PVXIT is usually 5 days.
3.What payment methods are accepted for CY8CPLC20-28PVXIT?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for CY8CPLC20-28PVXIT transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for CY8CPLC20-28PVXIT?
CY8CPLC20-28PVXIT orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your CY8CPLC20-28PVXIT 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 CY8CPLC20-28PVXIT?
For technical support, including CY8CPLC20-28PVXIT datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your CY8CPLC20-28PVXIT requirements.
6.How does Aetrix verify that CY8CPLC20-28PVXIT is sourced from the original manufacturer or authorized distributors?
All CY8CPLC20-28PVXIT 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 CY8CPLC20-28PVXIT meets industry standards.
7.What is the process for return or replacement of CY8CPLC20-28PVXIT?
All CY8CPLC20-28PVXIT units undergo pre-shipment inspection (PSI). If there is an issue with CY8CPLC20-28PVXIT, 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 CY8CPLC20-28PVXIT part is unused and in its original packaging.
Return procedure for CY8CPLC20-28PVXIT:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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