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

STMicroelectronics STHDMI001ATTR

Name: STHDMI001ATTR
Brand: STMicroelectronics
SKU: STHDMI001ATTR
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: STHDMI001ATTR

Manufacturer:: STMicroelectronics

Category:: Video Processing

Package:: 48-TFSOP (0.240", 6.10mm Width)

Datasheet:: STHDMI001ATTR.pdf

Description:: IC VIDEO SWITCH 48TSSOP

Quantity:: RFQ Add To RFQ list

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Product details

Overview

STHDMI001ATTR from STMicroelectronics is a 3.3V, 2-to-1 HDMI/DVI-compatible differential SPDT switch supporting 1.65 Gbps per channel, 165 MHz bandwidth, and 1080p/SXGA video formats. It features 5.5 Ω typical ON-resistance, 250 ps near-zero propagation delay, and –32 dB crosstalk at 825 MHz, deployed in TSSOP48 for HDMI source-selection in consumer AV systems.

For engineers reviewing the STHDMI001ATTR datasheet, STHDMI001ATTR pinout, STHDMI001ATTR application, or STHDMI001ATTR equivalent, key selection criteria include TMDS channel count (3 data + 1 clock), bidirectional operation capability, hot-insertion support, low bit-to-bit skew (200 ps), and ESD robustness (±2 kV HBM).

Technical Context

The STHDMI001ATTR integrates four SPDT switches - three for TMDS data channels (Data0–Data2) and one for the TMDS clock channel - enabling full-duplex, bidirectional signal routing between two HDMI sources and one display sink. Its flow-through architecture minimizes ground bounce and preserves signal integrity via low R_ON (5.5 Ω typ) and low I/O capacitance (6 pF typ).

Control is implemented via a single digital SEL input that selects either Port A (A0+/A0– through AClock+/AClock–) or Port B (B0+/B0– through BClock+/BClock–), with high-Z state on deselected path. Timing performance includes 9 ns switching speed, 200 ps bit-to-bit skew, and 250 ps propagation delay - critical for maintaining TMDS eye diagram compliance at 1.65 Gbps.

Key Specifications

Parameter	Value and Actual Design Meaning
Data rate	1.65 Gbps per channel - supports HDMI v1.1 and DVI v1.0 pixel clocks up to 165 MHz.
Bandwidth	165 MHz - enables full 1080p (1920×1080@60 Hz) and SXGA (1280×1024@75 Hz) video formats.
RON (typ)	5.5 Ω - ensures minimal insertion loss and preserves TMDS differential voltage swing across channels.
Crosstalk	–32 dB at 825 MHz - maintains channel isolation to prevent interference between active and idle TMDS paths.
Propagation delay	250 ps - enables precise timing alignment across all four TMDS lanes for eye diagram stability.
ESD rating	±2 kV HBM on all I/Os - provides robust handling during board assembly and system integration.
Supply range	3.0 V to 3.6 V - matches standard 3.3 V LDO rails in HDMI-enabled consumer electronics.

Pinout & Package

STHDMI001ATTR is housed in a 48-pin TSSOP package (JEDEC MO-153, 12.5 mm × 8.1 mm body, 0.5 mm pitch) with exposed thermal pad and ECOPACK® lead-free finish. Pin 1 marked by beveled corner; pins 22–23 are NC.

Pin/Terminal	Circuit Role	Design Meaning
1, 2, 4, 8, 11, 15, 18, 21, 24, 26, 31, 37, 42, 47	GND	Dedicated ground connections per functional block to minimize return-path inductance and reduce ground bounce.
3, 7, 12, 20, 25, 36, 48	VCC	Seven independent 3.3 V supply pins decouple power delivery across analog and digital sections.
5–6, 9–10, 13–14, 16–17	Data0+/–, Data1+/–, Data2+/–, Clock+/–	Output-side TMDS differential pairs routed to HDMI receiver; high-Z when deselected.
19	SEL	Single logic-level control input selecting Port A (SEL = L) or Port B (SEL = H); TTL/CMOS compatible.
27–28, 29–30, 32–33, 34–35, 38–39, 40–41, 43–44, 45–46	BClock+/–, AClock+/–, B2+/–, A2+/–, B1+/–, A1+/–, B0+/–, A0+/–	Two full sets of TMDS inputs (Port A and Port B), each with 3 data + 1 clock differential pairs.

Key Features

Feature	Design Value
Bidirectional TMDS routing	Supports both source-to-display and display-to-source configurations without signal degradation.
Hot-insertion capability	Enables safe connection/disconnection of HDMI cables while system is powered, preventing glitching or latch-up.
Undershoot clamp diodes	Integrated clamps on all data/control inputs suppress negative transients below –0.8 V, improving surge resilience.
Low bit-to-bit skew	200 ps max skew between any two TMDS lanes ensures tight eye alignment and reduces jitter-induced errors.
Flow-through ground layout	Optimized internal grounding reduces simultaneous switching noise and maintains <–32 dB crosstalk at 825 MHz.

Applications

Home Theater Switching

HDMI Source Aggregation

Use Scenario: A home entertainment hub connects two Blu-ray players and one AV receiver, requiring seamless switching between sources without interrupting audio/video sync.

IC Role / Device Role / Timing Role: Acts as a 2-to-1 TMDS multiplexer, routing selected source's full-bandwidth HDMI stream (including audio, video, and HDCP signals) to the receiver's HDMI input port.

Use Value: Maintains 1.65 Gbps data integrity and sub-250 ps propagation delay to preserve HDCP handshake timing and avoid frame drops during switching.

Use Scenario: An LCD TV integrates multiple HDMI inputs (e.g., cable box, game console) but uses a single internal HDMI receiver IC with limited physical ports.

IC Role / Device Role / Timing Role: Provides external port expansion by multiplexing two upstream HDMI sources onto one downstream TMDS interface, controlled via microcontroller GPIO.

Use Value: Eliminates need for higher-cost multi-input HDMI receiver ICs; low 5.5 Ω R_ON prevents signal attenuation that would otherwise trigger HDMI link training failures.

Notebook Docking Station

Professional Display Controller

Use Scenario: A USB-C docking station routes HDMI output from a laptop to either an external monitor or projector, depending on user selection.

IC Role / Device Role / Timing Role: Functions as a hot-pluggable HDMI selector, enabling dynamic reconfiguration without OS-level driver intervention or display retraining.

Use Value: ±2 kV HBM ESD protection and undershoot clamps ensure reliability during repeated cable insertions; 9 ns switching time avoids visible black-flash artifacts.

Use Scenario: A broadcast-grade video wall controller must route identical HDMI content to two different display types (e.g., LED panel and projection screen) with synchronized timing.

IC Role / Device Role / Timing Role: Serves as a precision distribution switch with matched propagation delay (<250 ps) and <200 ps bit-to-bit skew across all four TMDS lanes.

Use Value: Enables frame-accurate dual-output synchronization required for genlock-capable displays, avoiding lip-sync drift or image tearing.

Equivalent & Alternatives

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

Alternative Part	Technical Difference	Application Difference	Selection Advice
TI TPD12S016	Integrated HDMI level shifter and ESD protection; no built-in selector logic; requires external enable control.	Targeted at HDMI port protection only; lacks 2-to-1 multiplexing function.	Select when primary need is ESD/clamp protection on existing HDMI path, not source selection.
Analog Devices ADV3202	Higher bandwidth (2.5 Gbps), but quad SPDT architecture increases BOM cost and layout complexity.	Designed for professional video routing matrices, not consumer-grade 2-to-1 switching.	Select only if >1.65 Gbps data rate or multi-channel fan-out beyond 2:1 is required.

Compared with TPD12S016 and ADV3202, STHDMI001ATTR delivers optimized cost-performance balance for consumer HDMI switching: integrated SEL logic eliminates external control components, TSSOP48 footprint simplifies PCB routing, and 1.65 Gbps capability covers all HDMI v1.1 use cases without overengineering.

Availability

STHDMI001ATTR is available at Aetrix Electronics and suitable for DVD players, front projectors, LCD TVs and monitors, notebook PCs, and PDPs requiring stable component supply for legacy HDMI infrastructure upgrades and repair programs.

Supply support for STHDMI001ATTR 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, delivering automotive, industrial, and consumer ICs with emphasis on energy efficiency, reliability, and system-level integration.

The STHDMI001ATTR belongs to ST's high-speed interface switch product line, engineered specifically for HDMI/DVI signal routing in cost-sensitive, space-constrained consumer electronics where signal fidelity and hot-plug resilience are mandatory.

FAQ

Is STHDMI001ATTR pin-compatible with newer HDMI switch ICs like STDP2600?

No. STHDMI001ATTR uses a dedicated 48-pin TSSOP layout for 2-to-1 TMDS switching with discrete SEL control, whereas STDP2600 is a 64-pin QFN HDMI repeater/redriver with embedded protocol handling and I²C configuration. Their pin functions, power domains, and signal routing architectures are fundamentally incompatible.

Can STHDMI001ATTR support HDMI 2.0 or 4K resolution?

No. STHDMI001ATTR is specified for HDMI v1.1 and DVI v1.0, with maximum data rate of 1.65 Gbps per channel - sufficient for 1080p60 but insufficient for HDMI 2.0's 6 Gbps minimum requirement for 4K@30. Its 165 MHz bandwidth and timing parameters are not validated for UHD timing budgets.

Does STHDMI001ATTR require external termination resistors on TMDS lines?

No. The device is designed to operate with standard 100 Ω differential termination at the HDMI receiver end. Its low 6 pF channel ON capacitance and 5.5 Ω R_ON ensure minimal reflection and impedance discontinuity; adding external termination would degrade signal integrity and violate HDMI compliance.

What is the thermal performance of STHDMI001ATTR in continuous operation?

With R_thJA = 59 °C/W and typical ICC = 500 µA at 3.6 V, power dissipation remains below 2 mW. Junction temperature rise stays under 0.12 °C above ambient in still air, making heatsinking unnecessary even in sealed enclosures operating from –40°C to +85°C.

STHDMI001ATTR Specifications

Product attributes: Attribute value

Manufacturer:: STMicroelectronics

Series:: -

Package/Case:: 48-TFSOP (0.240", 6.10mm Width)

Packaging:: Tape & Reel (TR)

Product Status:: Obsolete

Function:: Switch

Applications:: Video Display

Standards:: DVI 1.0, HDMI 1.2

Control Interface:: -

Voltage - Supply:: 3.0V ~ 3.6V

Mounting Type:: Surface Mount

Grade:: -

Qualification:: -

Supplier Device Package:: 48-TSSOP

STHDMI001ATTR FAQ

1.How can I place an order for STHDMI001ATTR through Aetrix?

Please submit a Request for Quotation (RFQ) for STHDMI001ATTR 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 STHDMI001ATTR reliable?

The price and inventory of STHDMI001ATTR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for STHDMI001ATTR is usually 5 days.

3.What payment methods are accepted for STHDMI001ATTR?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for STHDMI001ATTR transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for STHDMI001ATTR?

STHDMI001ATTR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your STHDMI001ATTR 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 STHDMI001ATTR?

For technical support, including STHDMI001ATTR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your STHDMI001ATTR requirements.

6.How does Aetrix verify that STHDMI001ATTR is sourced from the original manufacturer or authorized distributors?

All STHDMI001ATTR 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 STHDMI001ATTR meets industry standards.

7.What is the process for return or replacement of STHDMI001ATTR?

All STHDMI001ATTR units undergo pre-shipment inspection (PSI). If there is an issue with STHDMI001ATTR, 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 STHDMI001ATTR part is unused and in its original packaging.

Return procedure for STHDMI001ATTR:

1.Submit a request within 90 days.

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

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