Infineon Technologies CY8CLED16P01-48LTXI

Overview

CY8CLED16P01-48LTXI from Cypress Semiconductor is an integrated Powerline Communication (PLC) SoC combining FSK-based PLC PHY, full network protocol stack (Data Link/Network/Transport layers), and a 24 MHz M8C processor with PSoC® analog/digital programmable resources. It supports up to 2400 bps bidirectional half-duplex communication over AC/DC powerlines (110V/240V AC, 12V/24V AC/DC), includes 8-bit CRC error detection, CSMA collision avoidance, and drives 16 HB LED channels via PrISM™ PWM. It is deployed in smart lighting control systems where powerline infrastructure serves as both power and data backbone.

For engineers reviewing the CY8CLED16P01-48LTXI datasheet, CY8CLED16P01-48LTXI pinout, CY8CLED16P01-48LTXI application, or CY8CLED16P01-48LTXI equivalent, key selection criteria include FSK modem frequency accuracy (131.8/133.3 kHz), CENELEC EN 50065-1/FCC Part 15 compliance readiness, I²C slave interface timing (50/100/400 kHz), PLT packet structure (6–20 byte header + 0–31 byte payload + CRC), and 16-channel LED dimming resolution (8–32 bits).

Technical Context

The CY8CLED16P01-48LTXI implements a dedicated FSK physical layer with configurable transmit frequencies (130.4/131.8 kHz for logic '1', 133.3 kHz for logic '0') and integrated HF band-pass filtering (125–140 kHz), IF filtering, correlator-based demodulation, and hysteresis-comparator digitization - all optimized for noisy powerline environments. Its network protocol embeds Carrier Sense Multiple Access (CSMA) with 85–115 ms random backoff and Band-In-Use (BIU) detection at ≥86 dBμVrms in 131.5–133.5 kHz.

As a PSoC-based SoC, it integrates a Harvard-architecture M8C core (24 MHz), 12 analog PSoC blocks (supporting 14-bit ADCs, 9-bit DACs, PGAs, filters), and 16 digital PSoC blocks (including UARTs, SPI, CRC/PRS modules). The device executes the full PLC stack-including PLT packet formation (preamble 0xAB, logical/extended/physical addressing), sequence numbering, retransmission logic, and group multicast-entirely on-chip without external firmware intervention.

Key Specifications

Pinout & Package

Package: 48-pin QFN (7 mm × 7 mm, 0.5 mm pitch), exposed thermal pad, RoHS-compliant - optimized for compact lighting driver PCBs with thermal management via soldered pad to ground plane.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar PLC + LED control applications.

Compared with ST7580 and TI PLC100, the CY8CLED16P01-48LTXI uniquely integrates PLC PHY, full ISO/OSI-equivalent protocol stack, and 16-channel HB LED control in one die - reducing BOM count by ≥3 ICs and eliminating inter-IC timing synchronization challenges in lighting systems.

Availability

CY8CLED16P01-48LTXI is available at Aetrix Electronics and suitable for smart lighting control, building automation systems, industrial status indication, and municipal streetlight management requiring stable component supply and long-term lifecycle support.

Supply support for CY8CLED16P01-48LTXI 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 (now part of Infineon Technologies) is a fabless semiconductor company specializing in programmable system-on-chip (PSoC®) solutions, USB controllers, and mixed-signal ICs for embedded applications.

The CY8CLED16P01 belongs to Cypress's Powerline Communication + LED Control SoC product line, designed specifically to unify communication and lighting control functions onto a single chip for energy-efficient, retrofit-friendly smart lighting infrastructure.

FAQ

What powerline voltage ranges does the CY8CLED16P01-48LTXI support out-of-the-box?

The device supports 110V/240V AC and 12V/24V AC/DC powerlines via Cypress-provided reference coupling circuits. These designs comply with CENELEC EN 50065-1:2001 and FCC Part 15. Operation on other voltages (e.g., 48V DC) is possible with custom coupling circuitry meeting impedance and safety isolation requirements.

Does the CY8CLED16P01-48LTXI require external firmware to run the PLC protocol stack?

No. The PLC protocol stack - including CSMA arbitration, PLT packet formation, CRC generation, sequence numbering, and acknowledgment handling - is implemented in dedicated hardware and ROM-resident firmware. Only application-layer logic (e.g., LED mapping, group membership) requires host configuration via I²C.

Can the CY8CLED16P01-48LTXI operate as both PLC master and slave in the same network?

Yes. The network protocol supports peer-to-peer and master-slave topologies with multiple masters. Each node can initiate transmissions, respond to remote commands (e.g., TX_CommandID 0x01–0x0F), and participate in group broadcasts - enabling distributed control without centralized coordinator dependency.

How is LED dimming resolution configured per channel on the CY8CLED16P01-48LTXI?

Dimming resolution (8 to 32 bits) is set per channel via I²C register writes to the PrISM™ control registers. Higher bit depths increase dimming granularity but reduce maximum PWM frequency; 16-bit resolution typically delivers optimal balance between smoothness and response time for architectural lighting.