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Infineon Technologies CY8CPLC20-28PVXI
- Part No.:
- CY8CPLC20-28PVXI
- Manufacturer:
- Infineon Technologies
- Category:
- Modems - ICs and Modules
- Package:
- 28-SSOP (0.209", 5.30mm Width)
- Datasheet:
-
CY8CPLC20-28PVXI.pdf
- Description:
- IC PLC PSOC CMOS 28SSOP
- Quantity:
- Payment:
- Shipping:
Inventory:1,426
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Product details
Overview
CY8CPLC20-28PVXI from Infineon Technologies (formerly Cypress Semiconductor) is an integrated powerline communication (PLC) system-on-chip combining a dedicated FSK modem PHY, full network protocol stack (data link + transport + network layers), and a programmable PSoC 1 mixed-signal microcontroller core. It delivers up to 2400 bps bidirectional half-duplex communication over AC/DC powerlines, features 8-bit CRC error detection, supports I²C host interface at 50/100/400 kHz, and integrates 32 KB flash, 2 KB SRAM, and 12 analog + 16 digital programmable blocks for embedded PLC node design in smart grid and building automation.
For engineers reviewing the CY8CPLC20-28PVXI datasheet, CY8CPLC20-28PVXI pinout, CY8CPLC20-28PVXI application, or CY8CPLC20-28PVXI equivalent, key selection criteria include FSK carrier frequencies (131.8/133.3 kHz), CENELEC EN 50065-1:2001 and FCC Part 15 compliance support, integrated MAC/PHY co-processing, PSoC 1 M8C core performance (24 MHz), and 28-pin SSOP package compatibility with legacy PSoC 1 development tools.
Technical Context
The CY8CPLC20-28PVXI implements a fully self-contained PLC transceiver using frequency shift keying with two configurable carrier frequencies (131.8 kHz for logic '1', 133.3 kHz for logic '0'; alternate 130.4 kHz option available). Its physical layer includes integrated HF band-pass filtering, mixer-based heterodyning, IF filtering, correlator-based demodulation, and hysteresis-comparator digitization - all optimized for noisy high- and low-voltage powerline environments.
The on-chip network protocol handles bidirectional half-duplex communication with CSMA collision avoidance, 8-bit CRC error detection, automatic packet retransmission on failure, and logical addressing supporting up to 256 nodes (8-bit) or 65,536 nodes (16-bit extended). It runs alongside the M8C Harvard-architecture processor, enabling concurrent PLC stack execution and custom application logic in flash-resident firmware.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Modulation Scheme | Frequency Shift Keying (FSK) with dual carrier frequencies for robust noise immunity on lossy powerlines |
| Max Data Rate | 2400 bps raw data rate - sufficient for metering, sensor telemetry, and control messaging in utility networks |
| PHY Carrier Frequencies | 131.8 kHz (logic '1') and 133.3 kHz (logic '0'); 130.4 kHz alternative enables wider deviation for enhanced SNR |
| I²C Interface Speed | Supports 50 kHz, 100 kHz, and 400 kHz modes - enables flexible host MCU integration without timing bottlenecks |
| Flash Memory | 32 KB with 50,000 erase/write cycles - stores full PLC protocol stack plus custom application firmware |
| Analog Resources | 12 rail-to-rail PSoC analog blocks supporting ADC (up to 14-bit), DAC (up to 9-bit), PGA, filters, comparators |
| Digital Resources | 16 PSoC digital blocks including UARTs, SPI masters/slaves, timers, PWMs, CRC/PRS modules |
Pinout & Package
Package: 28-pin SSOP (Small Outline Package), 300 mil width, lead pitch 0.65 mm, RoHS-compliant. Designed for surface-mount assembly and compatible with standard PSoC 1 programming and debug interfaces.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDD | Core Power Supply | 3.3 V ±10% supply for digital and analog subsystems; requires local decoupling |
| VSS | Ground Reference | Digital/analog common ground plane; critical for PLC signal integrity and EMI suppression |
| P0[0]–P0[7] | Programmable GPIO | Configurable as analog inputs (up to 12 total), digital I/O, or peripheral functions (I²C, UART, etc.) |
| SCL / SDA | I²C Host Interface | Dedicated pins for 400 kHz I²C master/slave communication with external controller or sensor hub |
| PLC_TX / PLC_RX | Powerline Modem Interface | Differential or single-ended connection points to external coupling circuit (transformer or capacitor-based) |
| XIN / XOUT | Crystal Oscillator Input/Output | Drives 1–24 MHz crystal; provides precise clock source for FSK modulation and timing-critical protocol layers |
| RESET | Active-Low Reset | Asynchronous reset input; supports external watchdog or manual reset during field deployment |
Key Features
| Feature | Design Value |
|---|---|
| Integrated PLC PHY + Protocol Stack | Eliminates need for external modem IC and protocol software porting - reduces BOM count and firmware development time |
| CSMA-Based Network Protocol | Enables multi-master operation and collision avoidance on shared powerline segments without centralized arbitration |
| Configurable FSK Carrier Deviation | Supports both 131.8/133.3 kHz and 130.4/133.3 kHz pairs - allows tuning for regional regulatory limits or channel SNR optimization |
| PSoC 1 Programmable Analog Blocks | Enables on-chip sensor conditioning (e.g., current/voltage monitoring for line diagnostics) without external op-amps or ADCs |
| EEPROM Emulation in Flash | Provides nonvolatile storage for node ID, calibration data, or network configuration without external serial EEPROM |
Applications
| Smart Electricity Metering | Streetlight Control Network |
|---|---|
Use Scenario: Two-way communication between utility meters and concentrators over existing 240 V AC mains wiring. IC Role / Device Role / Timing Role: Full PLC node transceiver executing PHY, MAC, and application-layer logic - no external protocol processor required. Use Value: Enables firmware-upgradable metering with tamper detection, load profiling, and remote disconnect using only one IC and passive coupling components. | Use Scenario: Centralized dimming and fault reporting across municipal LED streetlights powered by 120/230 V AC distribution lines. IC Role / Device Role / Timing Role: PLC endpoint managing light-level commands, thermal sensing, and zero-crossing synchronized switching via integrated timers. Use Value: Reduces infrastructure cost by eliminating dedicated control wiring; supports group addressing for zone-based control and broadcast firmware updates. |
| Home Energy Management | Industrial Sensor Monitoring |
Use Scenario: Interfacing plug-in energy monitors, HVAC controllers, and appliance controllers over 110 V/240 V residential wiring. IC Role / Device Role / Timing Role: Embedded PLC node providing I²C slave interface to host MCU while handling physical layer signaling and packet routing. Use Value: Delivers interoperable, low-cost home automation without Wi-Fi/BLE RF complexity or battery replacement requirements. | Use Scenario: Distributed temperature, vibration, and power quality sensors in factory equipment connected via 24 V DC control bus wiring. IC Role / Device Role / Timing Role: Low-voltage PLC transceiver with programmable gain amplifier and analog front-end for direct sensor interfacing. Use Value: Enables real-time condition monitoring over existing control cabling - avoids retrofitting industrial Ethernet or RS-485 infrastructure. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar powerline communication transceiver applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| ST7580 | OFDM-based PHY (not FSK); higher data rate (up to 132 kbps); requires external microcontroller for protocol stack | Targets broadband PLC (PRIME, G3-PLC) standards; not compliant with narrowband CENELEC/FCC legacy deployments | Select when migrating to OFDM-based smart grid standards requiring higher throughput and IPv6 support |
| MAX2990 | FSK PHY only (no integrated MCU or protocol stack); requires external host processor and firmware implementation | Used in modular designs where PLC PHY and application logic are separated across PCBs or SoCs | Select when architectural partitioning mandates discrete PHY + host MCU, or when leveraging existing MAXIM-based hardware platforms |
Compared with ST7580 and MAX2990, CY8CPLC20-28PVXI uniquely integrates narrowband FSK PHY, full protocol stack, and programmable PSoC 1 MCU in one 28-pin package - reducing component count, simplifying certification for CENELEC EN 50065-1, and accelerating time-to-field for legacy-compatible PLC endpoints.
Availability
CY8CPLC20-28PVXI is available at Aetrix Electronics and suitable for smart metering, streetlight control, home energy management, and industrial sensor monitoring requiring stable component supply and long-term lifecycle support.
Supply support for CY8CPLC20-28PVXI 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 is a global semiconductor leader headquartered in Munich, Germany, specializing in power management, automotive, industrial, and IoT solutions with strong emphasis on reliability and security.
CY8CPLC20 belongs to the PSoC 1 family of programmable system-on-chip devices, designed specifically for mixed-signal embedded applications where analog sensing, digital control, and communications (including powerline) must be tightly integrated on a single die.
FAQ
What powerline standards does CY8CPLC20-28PVXI comply with?
CY8CPLC20-28PVXI supports narrowband PLC implementations compliant with CENELEC EN 50065-1:2001 (Europe) and FCC Part 15 Subpart B (North America) when used with recommended coupling circuits. Its FSK modulation scheme and built-in CSMA protocol align with legacy utility communication requirements, though it does not implement PRIME or G3-PLC OFDM standards.
Does CY8CPLC20-28PVXI require an external microcontroller?
No. The device integrates a 24 MHz M8C processor core, 32 KB flash, and full powerline network protocol stack (data link, transport, and network layers), enabling standalone operation. External host MCUs may connect via I²C for supervisory control, but are not required for basic PLC node functionality.
Can CY8CPLC20-28PVXI operate on DC powerlines?
Yes. The device supports coupling to 12 V and 24 V DC powerlines using appropriate external passive coupling circuits (e.g., capacitive or transformer-based). Reference designs for DC operation are provided in the official datasheet and application notes, and the FSK PHY is agnostic to AC vs. DC line voltage waveform.
Is development software still supported for CY8CPLC20-28PVXI?
Yes. PSoC Designer™ v5.4 remains the official IDE for CY8CPLC20, with full support for schematic-based peripheral configuration, API generation, and debugging via MiniProg1/MiniProg3 programmers. Infineon maintains legacy tool archives and documentation, and community forums continue to provide active technical support for PSoC 1 designs.
CY8CPLC20-28PVXI Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Infineon Technologies
- Series:
- -
- Package/Case:
- 28-SSOP (0.209", 5.30mm Width)
- Packaging:
- Tube
- 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
CY8CPLC20-28PVXI FAQ
1.How can I place an order for CY8CPLC20-28PVXI through Aetrix?
Please submit a Request for Quotation (RFQ) for CY8CPLC20-28PVXI 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 CY8CPLC20-28PVXI reliable?
The price and inventory of CY8CPLC20-28PVXI are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for CY8CPLC20-28PVXI is usually 5 days.
3.What payment methods are accepted for CY8CPLC20-28PVXI?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for CY8CPLC20-28PVXI transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for CY8CPLC20-28PVXI?
CY8CPLC20-28PVXI orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your CY8CPLC20-28PVXI 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 CY8CPLC20-28PVXI?
For technical support, including CY8CPLC20-28PVXI datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your CY8CPLC20-28PVXI requirements.
6.How does Aetrix verify that CY8CPLC20-28PVXI is sourced from the original manufacturer or authorized distributors?
All CY8CPLC20-28PVXI 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 CY8CPLC20-28PVXI meets industry standards.
7.What is the process for return or replacement of CY8CPLC20-28PVXI?
All CY8CPLC20-28PVXI units undergo pre-shipment inspection (PSI). If there is an issue with CY8CPLC20-28PVXI, 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 CY8CPLC20-28PVXI part is unused and in its original packaging.
Return procedure for CY8CPLC20-28PVXI:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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