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Home > Products > Integrated Circuits (ICs) > Linear > Video Processing

STMicroelectronics STHDMI002ABTR

Name: STHDMI002ABTR
Brand: STMicroelectronics
SKU: STHDMI002ABTR
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: STHDMI002ABTR

Manufacturer:: STMicroelectronics

Category:: Video Processing

Package:: 48-TQFP

Datasheet:: STHDMI002ABTR.pdf

Description:: IC VIDEO SWITCH 48TQFP

Quantity:: RFQ Add To RFQ list

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Product details

Overview

STHDMI002ABTR from STMicroelectronics is a 2:1 HDMI/DVI differential SPDT switch IC supporting up to 1080p and SXGA (1280×1024@75Hz) video formats, with 1.65Gbps per-channel data rate, 5.5Ω typical on-resistance, and TQFP48 package for advanced display routing in consumer AV systems.

For engineers reviewing the STHDMI002ABTR datasheet, STHDMI002ABTR pinout, STHDMI002ABTR application, or STHDMI002ABTR equivalent, this device serves as a high-fidelity TMDS signal multiplexer for source selection in HDMI-enabled TVs, projectors, and monitors-requiring precise skew control, low crosstalk, and DDC/HPD switching integrity.

Technical Context

The STHDMI002ABTR integrates three SPDT switches for TMDS data channels and one for the TMDS clock channel, plus dedicated bi-directional NMOS switches for DDC (I²C) and HPD lines. It operates with 3.3V ±5% supply and supports 5V-tolerant DDC/HPD inputs without level shifters.

Its architecture enables hot-plug detection pass-through and isolated DDC buses for unselected ports, while maintaining <250ps propagation delay, <200ps bit-to-bit skew, and –32dB crosstalk at 825MHz-critical for preserving HDMI signal integrity across multiple display paths.

Key Specifications

Parameter	Value and Actual Design Meaning
Data rate	1.65Gbps per channel - supports full HDMI v1.2 bandwidth for 1080p/UXGA video
On-resistance	5.5 Ω (typ) - minimizes insertion loss and preserves TMDS signal amplitude
Propagation delay	250ps (typ) - ensures near-zero timing offset between input and output paths
Crosstalk	–32dB at 825MHz - prevents interference between active and inactive differential pairs
Bit-to-bit skew	200ps (max) - maintains pixel-level alignment across TMDS data lanes
DDC voltage tolerance	5V tolerant on all DDC/HPD pins - eliminates external level-shifting circuitry
Operating temperature	–40°C to +85°C - qualified for consumer and industrial display environments
Supply voltage	3.135V to 3.465V - tight 3.3V ±5% regulation required for stable switching performance

Pinout & Package

STHDMI002ABTR is housed in a 48-pin TQFP package (0.5mm pitch), optimized for HDMI PCB routing with symmetrical differential I/O placement and dedicated VCC/GND distribution for signal integrity.

Pin/Terminal	Circuit Role	Design Meaning
SEL	Select control input	Determines active port (A or B); logic-high selects port B, logic-low selects port A
YCLK+/YCLK−, Y0+/Y0−, Y1+/Y1−, Y2+/Y2−	TMDS output differential pairs	Single common output path carrying multiplexed clock and data from selected source
ACLK+/ACLK−, A0+/A0−, A1+/A1−, A2+/A2−	Port A TMDS inputs	Full HDMI differential interface for first source (e.g., Blu-ray player)
BCLK+/BCLK−, B0+/B0−, B1+/B1−, B2+/B2−	Port B TMDS inputs	Full HDMI differential interface for second source (e.g., game console)
A_DDC_SDA/A_DDC_SCL, B_DDC_SDA/B_DDC_SCL	Input-side DDC I²C lines	Bi-directional 5V-tolerant I²C interfaces for EDID communication with respective sources
Y_DDC_SDA/Y_DDC_SCL	Output-side DDC I²C lines	Connected to sink (display) DDC bus; only active port's DDC is routed through
A_HPD, B_HPD, Y_HPD	Hot-plug detect signals	5V-tolerant HPD path from selected source to sink; unselected ports are isolated
VCC (pins 1,13,18,46)	Power supply	Four dedicated 3.3V supply pins reduce IR drop and improve PSRR for analog switching core
GND (pins 4,7,10,15,21,24,27,33,36,39)	Ground reference	Ten ground pins ensure low-impedance return paths for all 12 TMDS lines and control signals

Key Features

Feature	Design Value
Bi-directional DDC/HPD switching	Enables seamless EDID handshake and hot-plug detection without external logic or isolation components
Isolated DDC buses	Prevents I²C bus contention when multiple sources share a single display port
Flow-through mode ground bounce suppression	Minimizes digital noise coupling into analog TMDS paths during switching transitions
Undershoot clamp diodes on all I/Os	Protects against negative transients down to –1.2V, improving system robustness in noisy AV environments
Optimized pin layout for HDMI routing	Reduces trace length mismatch and via count-directly supporting <10ps inter-pair skew in PCB layout

Applications

Advanced TV Source Switching

LCD Monitor Input Multiplexing

Use Scenario: A smart TV integrates two HDMI inputs (cable box and streaming stick) feeding a single HDMI receiver IC.

IC Role / Device Role / Timing Role: Acts as a 2:1 TMDS multiplexer routing either source's clock/data to the SoC's HDMI RX, while isolating unused DDC/HPD paths.

Use Value: Eliminates need for dual-input HDMI receiver, reducing BOM cost and PCB area without compromising 1080p60 signal fidelity.

Use Scenario: An industrial LCD monitor accepts HDMI from both a PC and embedded HMI controller, with automatic failover.

IC Role / Device Role / Timing Role: Provides glitch-free source selection with sub-nanosecond propagation delay and <200ps bit skew across all TMDS lanes.

Use Value: Ensures pixel-perfect image rendering during switching-no frame drop or color misalignment due to timing mismatch.

Notebook Docking Station

Front Projector Input Management

Use Scenario: A USB-C dock routes HDMI from laptop or tablet to a single projector output using shared physical connector.

IC Role / Device Role / Timing Role: Switches TMDS and DDC/HPD between two upstream devices while maintaining EDID read-through and HPD assertion timing.

Use Value: Enables plug-and-play compatibility with any HDMI sink without manual reconfiguration or firmware intervention.

Use Scenario: High-end front projector supports dual HDMI inputs (Blu-ray player and media server) with user-selectable priority.

IC Role / Device Role / Timing Role: Routes full-bandwidth 1.65Gbps TMDS signals with –32dB crosstalk, preventing ghosting or noise coupling between sources.

Use Value: Preserves deep color (12-bit) and high refresh rate (75Hz SXGA) fidelity-no visible degradation during source switching.

Equivalent & Alternatives

The following parts are listed as comparable options for similar HDMI 2:1 switching applications.

Alternative Part	Technical Difference	Application Difference	Selection Advice
TS3DV642RHBR	6-channel 2:1 mux (supports full HDMI 1.4 including CEC); higher 2.5Gbps data rate; 3.3V-only DDC tolerance	Supports CEC passthrough and higher-resolution formats (e.g., WUXGA); requires external 5V-to-3.3V DDC level shifters	Choose for HDMI 1.4+ systems needing CEC or >1080p support; avoid if 5V DDC direct connection is mandatory
PI3HDX1204ZLEX	12-channel HDMI 2:1 switch with integrated redriver; supports 3.4Gbps; active equalization; 5V-tolerant DDC/HPD	Compensates for long cable losses; adds power consumption and layout complexity; over-spec for short-board routing	Choose only when driving >5m HDMI cables or facing signal integrity margin issues; not cost-effective for board-level switching

Compared with TS3DV642RHBR and PI3HDX1204ZLEX, STHDMI002ABTR delivers optimal balance of 1.65Gbps capability, native 5V DDC/HPD tolerance, and minimal BOM impact-making it ideal for cost-sensitive, space-constrained 1080p consumer displays where passive switching suffices.

Availability

STHDMI002ABTR is available at Aetrix Electronics and suitable for advanced TVs, LCD monitors, and notebook docking stations requiring stable component supply and long-term design continuity.

Supply support for STHDMI002ABTR 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

STMicroelectronics is a global semiconductor leader headquartered in Geneva, Switzerland, specializing in automotive, industrial, and consumer analog/mixed-signal solutions.

The STHDMI002ABTR belongs to ST's high-speed interface switch product line, engineered specifically for HDMI/DVI signal routing in cost-sensitive, high-volume AV equipment with strict EMI and signal integrity requirements.

FAQ

What is the maximum supported video resolution and timing standard for STHDMI002ABTR?

STHDMI002ABTR supports all HDMI v1.2 and DVI v1.0 formats up to 1080p60 and SXGA (1280×1024@75Hz), with a per-channel data rate of 1.65Gbps. It does not support HDMI 1.3+ features like Deep Color or x.v.Color, nor resolutions beyond UXGA. The 850MHz –3dB bandwidth and <200ps skew ensure compliance with TMDS electrical specifications for these formats.

Does STHDMI002ABTR require external level shifters for DDC or HPD connections?

No. All DDC (A_DDC_SDA/A_DDC_SCL/B_DDC_SDA/B_DDC_SCL/Y_DDC_SDA/Y_DDC_SCL) and HPD (A_HPD/B_HPD/Y_HPD) pins are 5V tolerant, enabling direct connection to standard I²C buses and HDMI source/sink HPD circuits without external level-shifting components. This simplifies schematic design and reduces bill-of-materials count.

How does STHDMI002ABTR handle unused port isolation for DDC and HPD?

When a port is deselected (e.g., SEL = L selects Port A), the DDC and HPD lines of Port B are placed in high-impedance isolation-preventing bus contention and false HPD assertions. Only the selected port's DDC is connected end-to-end, and its HPD signal is routed to Y_HPD. This behavior is hardware-controlled and requires no software configuration.

Can STHDMI002ABTR be used in hot-plug insertion scenarios?

Yes. STHDMI002ABTR is explicitly designed for hot insertion: it features undershoot clamp diodes on all I/Os, 5V-tolerant DDC/HPD pins, and flow-through mode ground bounce suppression. These features prevent latch-up or damage during live HDMI cable connection/disconnection, meeting HDMI compliance requirements for sink-side robustness.

STHDMI002ABTR Specifications

Product attributes: Attribute value

Manufacturer:: STMicroelectronics

Series:: -

Package/Case:: 48-TQFP

Packaging:: Tape & Reel (TR)

Product Status:: Obsolete

Function:: Switch

Applications:: Video Display

Standards:: DVI 1.0, HDMI 1.2

Control Interface:: -

Voltage - Supply:: 3.135V ~ 3.465V

Mounting Type:: Surface Mount

Grade:: -

Qualification:: -

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

STHDMI002ABTR FAQ

1.How can I place an order for STHDMI002ABTR through Aetrix?

Please submit a Request for Quotation (RFQ) for STHDMI002ABTR 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 STHDMI002ABTR reliable?

The price and inventory of STHDMI002ABTR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for STHDMI002ABTR is usually 5 days.

3.What payment methods are accepted for STHDMI002ABTR?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for STHDMI002ABTR transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for STHDMI002ABTR?

STHDMI002ABTR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your STHDMI002ABTR 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 STHDMI002ABTR?

For technical support, including STHDMI002ABTR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your STHDMI002ABTR requirements.

6.How does Aetrix verify that STHDMI002ABTR is sourced from the original manufacturer or authorized distributors?

All STHDMI002ABTR 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 STHDMI002ABTR meets industry standards.

7.What is the process for return or replacement of STHDMI002ABTR?

All STHDMI002ABTR units undergo pre-shipment inspection (PSI). If there is an issue with STHDMI002ABTR, 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 STHDMI002ABTR part is unused and in its original packaging.

Return procedure for STHDMI002ABTR:

1.Submit a request within 90 days.

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

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