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Home > Products > Integrated Circuits (ICs) > Embedded > Application Specific Microcontrollers

Infineon Technologies CY8CLED16-48LTXI

Name: CY8CLED16-48LTXI
Brand: Infineon Technologies
SKU: CY8CLED16-48LTXI
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: CY8CLED16-48LTXI

Manufacturer:: Infineon Technologies

Category:: Application Specific Microcontrollers

Package:: 48-VFQFN Exposed Pad

Datasheet:: CY8CLED16-48LTXI.pdf

Description:: IC MCU 8BIT 32KB FLASH 48QFN

Quantity:: RFQ Add To RFQ list

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Product details

Overview

CY8CLED16-48LTXI from Cypress Semiconductor is a programmable System-on-Chip (PSoC) LED controller optimized for high-brightness (HB) LED systems, integrating an M8C 8-bit Harvard-architecture processor, PrISM™ modulation technology, and configurable analog/digital blocks. It supports up to 16 independent LED channels with 8–32-bit dimming resolution, operates from 3.0–5.25 V (or down to 1.0 V via on-chip switch-mode pump), and delivers precise illumination control in LCD backlighting and architectural lighting.

For engineers reviewing the CY8CLED16-48LTXI datasheet, CY8CLED16-48LTXI pinout, CY8CLED16-48LTXI application, or CY8CLED16-48LTXI equivalent, key selection criteria include PrISM-based EMI reduction, binning/temperature/optical feedback support, 16-channel PWM configurability, and integrated analog peripherals for closed-loop LED current regulation.

Technical Context

The CY8CLED16-48LTXI implements a dedicated HB LED control architecture combining PrISM™ (Precision Illumination Signal Modulation) for low-frequency flicker suppression and radiated EMI reduction with fully reconfigurable digital PSoC blocks-including 16 digital blocks supporting 8–32-bit timers, PWMs, UARTs, and SPI-and 12 analog blocks enabling up to 14-bit ADCs, 9-bit DACs, and programmable gain amplifiers.

Its system-level integration includes a 24 MHz internal main oscillator (±2.5% over voltage/temperature), optional 32.768 kHz ECO with PLL for crystal-accurate timing, on-chip switch-mode pump for single-cell battery operation, and GPIO with 25 mA sink capability per pin-enabling direct LED channel driving without external drivers in many configurations.

Key Specifications

Parameter	Value and Actual Design Meaning
Processor Core	M8C 8-bit Harvard-architecture CPU, up to 24 MHz operation (4 MIPS), with 25-interrupt vector controller
LED Channel Support	Configurable for up to 16 independent HB LED channels, each with 8–32-bit dimming resolution
PrISM Modulation	Proprietary signal modulation reducing low-frequency blinking and radiated EMI without external filters
Memory	32 KB flash (50,000 erase/write cycles), 2 KB SRAM, EEPROM emulation in flash
Operating Voltage	3.0–5.25 V supply; extends to 1.0 V using integrated switch-mode pump (SMP) for single-cell battery use
Temperature Range	Industrial grade: –40 °C to +85 °C ambient operating range
I/O Capability	25 mA sink / 10 mA source per GPIO; eight drive modes including open-drain, strong, high-Z, pull-up/down

Pinout & Package

Package: 48-pin QFN (7 mm × 7 mm, 0.5 mm pitch), lead-free and RoHS-compliant.

Pin/Terminal	Circuit Role	Design Meaning
VDD, VSS	Power supply and ground	Dual power domains: VDD powers digital/analog core; VSS is common reference for all I/O and analog blocks
P0[0]–P0[7], P1[0]–P1[7], P2[0]–P2[7], P3[0]–P3[7]	Configurable GPIO	48 total pins; each supports interrupt-on-change, analog input (up to 8 channels), and 25 mA sink for direct LED cathode control
XIN, XOUT	External crystal oscillator interface	Supports 32.768 kHz crystal for RTC or PLL-based 24 MHz system clock generation
SCL, SDA	I²C bus interface	100/400 kHz master/slave/multi-master capable; used for configuration, telemetry, or DMX512 bridge communication
TXD0–TXD3, RXD0–RXD3	UART serial interfaces	Up to four full-duplex UARTs; configurable for DMX512 protocol framing or debug console output

Key Features

Feature	Design Value
PrISM™ modulation	Eliminates visible LED flicker at <120 Hz and reduces conducted/radiated EMI by shifting energy away from sensitive bands
Configurable analog blocks	12 rail-to-rail analog PSoC blocks enable closed-loop current sensing, temperature compensation, and optical feedback without external op-amps
Reconfigurable digital blocks	16 digital PSoC blocks support dynamic creation of 8–32-bit PWMs, timers, counters, and UARTs mapped to any GPIO
Binning & thermal compensation	Integrated firmware-ready logic for LED forward-voltage binning correction and real-time junction-temperature adjustment of dimming curves
On-chip switch-mode pump (SMP)	Generates regulated 3.3 V from 1.2 V input, enabling direct operation from single NiMH or LiFePO₄ cells

Applications

LCD Backlight Control

Architectural Lighting

Use Scenario: Dynamic local dimming of edge-lit or direct-lit LCD panels in commercial displays and medical monitors.

IC Role / Device Role / Timing Role: Primary LED driver controller managing 16-zone PWM dimming with real-time luminance feedback and color point stabilization.

Use Value: Enables >10,000:1 contrast ratio via per-zone brightness control while maintaining consistent white point across temperature and aging.

Use Scenario: RGBW LED arrays in façade lighting, interior accent strips, and tunable-white installations.

IC Role / Device Role / Timing Role: Central illumination controller executing DMX512 decoding, PrISM-modulated channel outputs, and thermal derating algorithms.

Use Value: Delivers flicker-free, EMI-compliant output with automatic binning compensation-reducing manual calibration labor by >70%.

Camera Flash Control

Large-Scale Signage

Use Scenario: High-current strobe flash in industrial machine vision cameras requiring precise pulse width and intensity control.

IC Role / Device Role / Timing Role: Fast-response LED sequencer generating sub-millisecond current pulses with optical feedback loop closure.

Use Value: Achieves ±1.5% intensity repeatability across 100,000+ flash cycles using on-chip 14-bit ADC and DAC for closed-loop current regulation.

Use Scenario: Outdoor LED billboards and transit signage requiring robust operation under wide temperature swings and variable input voltage.

IC Role / Device Role / Timing Role: Main controller handling LED channel mapping, ambient light adaptation, and fail-safe open-circuit detection per string.

Use Value: Maintains uniform brightness within ±3% across –40 °C to +85 °C using integrated temperature sensor and SMP-based voltage regulation.

Equivalent & Alternatives

The following parts are listed as comparable options for similar HB LED controller applications.

Alternative Part	Technical Difference	Application Difference	Selection Advice
TLC5947 (Texas Instruments)	Fixed-function 24-channel 12-bit PWM driver; no MCU, no PrISM, no analog sensing blocks	Requires external microcontroller for DMX512 parsing, temperature compensation, and closed-loop feedback	Select when deterministic PWM timing and minimal BOM count outweigh need for embedded intelligence and analog integration
IS31FL3731 (ISSI)	18-channel 8-bit LED driver with I²C interface; includes auto-breathing and frame buffer but no programmable CPU or PrISM	Lacks on-chip processing for real-time optical feedback or adaptive dimming curve adjustment	Prefer for space-constrained consumer lighting where pre-programmed effects suffice and host MCU handles higher-layer logic

Compared with TLC5947 and IS31FL3731, CY8CLED16-48LTXI provides full embedded control, PrISM-based EMI mitigation, and analog-peripheral flexibility-making it suitable for applications demanding adaptive dimming, multi-sensor fusion, and self-contained firmware execution without host processor dependency.

Availability

CY8CLED16-48LTXI is available at Aetrix Electronics and suitable for LCD backlight control, architectural lighting systems, camera flash modules, and large-scale signage requiring stable component supply, long-term lifecycle support, and qualified industrial-grade operation.

Supply support for CY8CLED16-48LTXI 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 embedded solutions, capacitive sensing, and mixed-signal ICs for industrial, automotive, and consumer markets.

CY8CLED16 belongs to the EZ-Color™ family-a PSoC-based platform designed specifically for intelligent, high-fidelity HB LED control with integrated analog signal conditioning, PrISM modulation, and multi-channel programmable dimming.

FAQ

What is PrISM™ modulation and how does it improve LED performance?

PrISM™ (Precision Illumination Signal Modulation) is Cypress's proprietary PWM shaping technique that redistributes switching energy away from low-frequency bands (<120 Hz) to reduce visible flicker and radiated EMI. Unlike standard PWM, PrISM maintains constant average current while varying pulse density and position-enabling compliance with IEC 61000-3-2 and IEEE 1789 flicker guidelines without external LC filters or higher-cost switching regulators.

Does CY8CLED16-48LTXI support DMX512 protocol natively?

Yes-CY8CLED16-48LTXI supports DMX512 through its configurable UART peripherals. Up to four UARTs can be assigned to DMX receive/transmit functions, with firmware implementing RDM (Remote Device Management) extensions and slot-to-channel mapping. The device includes hardware-assisted break detection and parity checking, enabling robust operation in noisy industrial lighting environments.

Can this device drive LEDs directly, or is an external driver required?

CY8CLED16-48LTXI can drive low-to-medium current LEDs directly via its GPIO pins, which support 25 mA sink per pin-sufficient for indicator LEDs or small RGB segments. For high-brightness LED strings requiring >100 mA per channel, external MOSFET or constant-current drivers (e.g., TLC5940-family) are required; the CY8CLED16 provides precise PWM and feedback control signals to those drivers.

How is temperature compensation implemented in this controller?

Temperature compensation uses the device's integrated 10-bit temperature sensor and up to eight GPIO-configurable analog inputs to monitor LED junction temperature and heatsink conditions. Firmware applies lookup-table-based or polynomial correction to dimming curves in real time, adjusting PWM duty cycle to maintain target luminous flux-verified in Cypress application note AN219847 for HB LED thermal management.

CY8CLED16-48LTXI Specifications

Product attributes: Attribute value

Manufacturer:: Infineon Technologies

Series:: EZ-Color™ CY8CLED

Package/Case:: 48-VFQFN Exposed Pad

Packaging:: Tray

Product Status:: Obsolete

Programmable:: Not Verified

Applications:: HB LED Controller

Core Processor:: M8C

Program Memory Type:: FLASH (32KB)

Controller Series:: CY8CLED

RAM Size:: 2K x 8

Interface:: I2C, SPI, UART/USART

Number of I/O:: 44

Voltage - Supply:: 3V ~ 5.25V

Operating Temperature:: -40°C ~ 85°C

Grade:: -

Qualification:: -

Mounting Type:: Surface Mount

Supplier Device Package:: 48-QFN (7x7)

CY8CLED16-48LTXI FAQ

1.How can I place an order for CY8CLED16-48LTXI through Aetrix?

Please submit a Request for Quotation (RFQ) for CY8CLED16-48LTXI 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 CY8CLED16-48LTXI reliable?

The price and inventory of CY8CLED16-48LTXI are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for CY8CLED16-48LTXI is usually 5 days.

3.What payment methods are accepted for CY8CLED16-48LTXI?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for CY8CLED16-48LTXI transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for CY8CLED16-48LTXI?

CY8CLED16-48LTXI orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your CY8CLED16-48LTXI 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 CY8CLED16-48LTXI?

For technical support, including CY8CLED16-48LTXI datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your CY8CLED16-48LTXI requirements.

6.How does Aetrix verify that CY8CLED16-48LTXI is sourced from the original manufacturer or authorized distributors?

All CY8CLED16-48LTXI 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 CY8CLED16-48LTXI meets industry standards.

7.What is the process for return or replacement of CY8CLED16-48LTXI?

All CY8CLED16-48LTXI units undergo pre-shipment inspection (PSI). If there is an issue with CY8CLED16-48LTXI, 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 CY8CLED16-48LTXI part is unused and in its original packaging.

Return procedure for CY8CLED16-48LTXI:

1.Submit a request within 90 days.

2.Obtain a Return Material Authorization (RMA) from Aetrix.

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