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

STMicroelectronics HDMI2C1-14HDS

Name: HDMI2C1-14HDS
Brand: STMicroelectronics
SKU: HDMI2C1-14HDS
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: HDMI2C1-14HDS

Manufacturer:: STMicroelectronics

Category:: Video Processing

Package:: 24-VFQFN Exposed Pad

Datasheet:: HDMI2C1-14HDS.pdf

Description:: IC VIDEO SGNL COND 24QFN

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Product details

Overview

HDMI2C1-14HDS from STMicroelectronics is a fully integrated ESD protection and signal conditioning IC for HDMI 2.0/1.4 source applications, providing bidirectional level-shifting on DDC (I²C), CEC, HPD, and HEAC links, TMDS channel ESD protection up to 3.4 Gbps per lane, and +5 V output short-circuit/over-temperature protection in a 24-pin QFN package.

For engineers reviewing the HDMI2C1-14HDS datasheet, HDMI2C1-14HDS pinout, HDMI2C1-14HDS application, or HDMI2C1-14HDS equivalent, this device addresses HDMI CTS compliance challenges across temperature (-40 °C to +85 °C), supports wake-up-from-standby via CEC, enables long/poor-quality cable operation via dynamic DDC pull-up, and delivers ultra-low quiescent current (600 µA) in idle state.

Technical Context

The HDMI2C1-14HDS integrates six functional blocks: (1) bidirectional CEC level-shifter with backdrive protection and independent VDD_CEC_IC supply (1.8–3.63 V); (2) DDC (SCL/SDA) bidirectional buffer with dynamic pull-up enabling 750 pF load drive and I²C-compliant rise time; (3) HPD sink-detection circuit with current-source pull-down and ASIC-side voltage translation; (4) HEAC+ / HEAC− utility/HPD dual-role interface supporting ARC and HEC; (5) 5V_OUT current-limited power output with fault reporting (open-drain FAULT_IC); and (6) eight-channel TMDS ESD protection rated for ±8 kV contact discharge (IEC 61000-4-2 Level 4).

All control links operate with independent supply domains: VDD_5V (4.9–5.3 V), VDD_IC (1.62–3.63 V), VDD_CEC (2.97–3.63 V), and VDD_CEC_IC (1.62–3.63 V), enabling low-voltage ASIC interfacing down to 1.8 V while maintaining full HDMI 2.0 electrical compliance including 4K@60 fps TMDS data integrity.

Key Specifications

Parameter	Value and Actual Design Meaning
Operating Temp	-40 °C to +85 °C - Ensures full HDMI CTS compliance across industrial and consumer ambient conditions.
ESD Protection	±8 kV contact (IEC 61000-4-2 Level 4) on all cable-side pins - Guarantees robustness against real-world handling discharge events.
TMDS Data Rate	Up to 3.4 Gbps per channel - Supports HDMI 2.0 video formats including 4K@60 fps with minimal signal distortion.
DDC Load Drive	750 pF total capacitance (cable + sink) with dynamic pull-up - Eliminates I²C communication failure on long or lossy HDMI cables.
CEC Wake-up	Operates with VDD_CEC_IC = 1.8 V while main VDD_5V is off - Enables true zero-power standby with remote wake capability.
Quiescent Current	600 µA (all supplies active, idle links) - Reduces system standby power without compromising link readiness.
5V Output Protection	Current-limited +5 VOUT with open-circuit fault response and OTP shutdown - Prevents damage from cable shorts or thermal runaway.

Pinout & Package

Package: 24-pin QFN (4 mm × 4 mm, 0.5 mm pitch), exposed thermal pad, RoHS-compliant.

Pin/Terminal	Circuit Role	Design Meaning
1 FAULT_IC	Fault indicator output (ASIC side)	Open-drain signal pulled low when 5V_OUT overcurrent or overtemperature occurs - enables ASIC-level fault handling.
2 CEC_IC	CEC driver output (ASIC side)	Level-shifted CEC signal referenced to VDD_IC (1.8–3.63 V) - allows direct connection to low-voltage HDMI ASICs.
3 SCL_IC	DDC clock output (ASIC side)	Bidirectional I²C clock line with dynamic pull-up synchronization - maintains I²C timing integrity under high capacitive loads.
4 SDA_IC	DDC data output (ASIC side)	Bidirectional I²C data line with same dynamic pull-up as SCL_IC - ensures synchronized rise-time acceleration for both DDC lines.
5 HPD_IC	Hot-plug detect output (ASIC side)	Digital HPD status translated to VDD_IC logic levels - provides reliable sink detection regardless of cable-side HPD voltage swing.
6 Utility	HEAC+/Utility input (cable side)	Carries HDMI Ethernet Channel (HEC) differential signal and ARC common-mode return - dual-function pin per HDMI 1.4 spec.
7 HPD	HPD/HEAC− input (cable side)	Serves as both hot-plug detect return path and HEAC differential pair negative leg - shared physical layer per HDMI specification.
8 SDA	DDC data output (cable side)	ESD-protected, 5 V-tolerant SDA line with dynamic pull-up - interfaces directly to HDMI connector without external components.
9 SCL	DDC clock output (cable side)	ESD-protected, 5 V-tolerant SCL line with identical dynamic pull-up - matches SDA timing behavior for I²C bus reliability.
10 CK−	TMDSClock− (cable side)	One leg of TMDS clock differential pair with broadband ESD protection - preserves signal integrity up to 340 MHz fundamental.
11 CK+	TMDSClock+ (cable side)	Complementary TMDS clock leg with matched ESD characteristics - ensures common-mode noise rejection and skew control.
12 NC	No connect	Unbonded pad - must remain unconnected and un-routed on PCB to avoid parasitic coupling or thermal impedance issues.
13 DAT_D0−	TMDSD0− (cable side)	First TMDS data differential pair negative leg - protected for ±8 kV ESD while maintaining <1 dB insertion loss at 3.4 GHz.
14 DAT_D0+	TMDSD0+ (cable side)	First TMDS data differential pair positive leg - matched to DAT_D0− for controlled impedance and common-mode rejection.
15 DAT_D1−	TMDSD1− (cable side)	Second TMDS data differential pair negative leg - supports full 10.2 Gbps aggregate bandwidth with low crosstalk.
16 DAT_D1+	TMDSD1+ (cable side)	Second TMDS data differential pair positive leg - designed for 100 Ω differential impedance trace routing.
17 DAT_D2−	TMDSD2− (cable side)	Third TMDS data differential pair negative leg - enables RGB/4:4:4 color space transmission at 4K resolution.
18 DAT_D2+	TMDSD2+ (cable side)	Third TMDS data differential pair positive leg - completes three video data lanes plus one clock lane for HDMI 2.0 compliance.
19 CEC	CEC output (cable side)	Bi-directional CEC line with 8 kV ESD protection and backdrive isolation - prevents ASIC damage during cable hot-plug events.
20 VDD_CEC	CEC bus supply (cable side)	+3.3 V supply for CEC transceiver section - decoupled externally to maintain noise immunity during CEC arbitration.
21 5V_OUT	+5 V power output (cable side)	Current-limited (typ. 550 mA), short-circuit protected output - powers HDMI sink devices without external FET or sense resistor.
22 VDD_5V	Main +5 V input supply	Input for internal LDO and current limiter - requires UVLO threshold (3.5–4.1 V) to enable 5V_OUT and functional blocks.
23 VDD_CEC_IC	CEC ASIC supply	Independent 1.8–3.63 V supply for CEC_IC driver - enables wake-up operation even when VDD_5V and VDD_IC are powered down.
24 VDD_IC	HDMI ASIC supply	Primary logic supply (1.62–3.63 V) for all ASIC-side I/O - supports 1.8 V LVCMOS interfaces without level-shifter ICs.

Key Features

Feature	Design Value
Dynamic DDC Pull-up	Accelerates SDA/SCL rise time on 750 pF loads to meet I²C 1 µs max - eliminates need for external pull-ups or cable qualification.
Independent CEC Power Domain	VDD_CEC_IC remains active during VDD_5V/VDD_IC shutdown - enables true zero-power standby with CEC-initiated wake-up.
HEAC Dual-Function Pinning	Utility (HEAC+) and HPD (HEAC−) share physical pins per HDMI 1.4 spec - reduces component count and PCB routing complexity.
TMDS Bandwidth Preservation	ESD clamps with <0.3 pF capacitance per line - maintains signal integrity up to 3.4 Gbps without equalization or pre-emphasis.
Integrated Fault Reporting	Open-drain FAULT_IC pin asserts low on 5V_OUT overcurrent or OTP - enables ASIC firmware to log faults or initiate safe shutdown.
Pin-Compatible HDMI A Layout	Pin mapping aligns with HDMI Type-A connector pinout - simplifies PCB layout and minimizes trace length mismatches.

Applications

HD Set-Top Box

DVD/Blu-ray Player

Use Scenario: HDMI source device transmitting 4K@60 fps video to TV with long or low-cost cables.

IC Role / Device Role / Timing Role: Signal conditioner and ESD protector for all HDMI control links (DDC, CEC, HPD, HEAC) and TMDS lanes.

Use Value: Ensures reliable EDID handshake over 750 pF cable capacitance, prevents CEC wake-up failure due to backdrive, and avoids 5V cable short damage.

Use Scenario: Consumer disc player requiring HDMI CTS certification and low standby power.

IC Role / Device Role / Timing Role: Integrated HDMI interface companion IC managing power sequencing, fault signaling, and protocol-level signal integrity.

Use Value: Achieves <600 µA system standby current via independent CEC domain, passes HDMI 2.0 compliance testing out-of-box, and eliminates 6 external protection diodes.

Notebook Graphics Output

PC Graphics Card

Use Scenario: Space-constrained notebook GPU output with thermal limits and EMI sensitivity.

IC Role / Device Role / Timing Role: Compact QFN-based HDMI interface conditioner with exposed thermal pad for direct heatsink attachment.

Use Value: Reduces BOM count by integrating 8 TMDS ESD diodes, 2 DDC buffers, CEC level-shifter, HPD translator, and 5V regulator into single 4×4 mm footprint.

Use Scenario: High-performance desktop GPU requiring robust HDMI 2.0 support and field-reliability.

IC Role / Device Role / Timing Role: Front-end HDMI protection and conditioning IC placed adjacent to HDMI connector for optimal signal integrity.

Use Value: Withstands repeated ±8 kV contact ESD events without latch-up, maintains TMDS eye diagram margin at 3.4 Gbps, and reports faults before ASIC damage occurs.

Equivalent & Alternatives

The following parts are listed as comparable options for similar HDMI source interface conditioning applications.

Alternative Part	Technical Difference	Application Difference	Selection Advice
TI TPD12S521	Single-supply (3.3 V only), no independent CEC domain, no HEAC support, lower TMDS bandwidth (2.25 Gbps)	Limited to HDMI 1.4a; cannot support 4K@60 fps or ARC/HEC features; requires external 5V regulator	Select only for cost-sensitive HDMI 1.4 designs where HEAC and CEC wake-up are not required.
NXP PTN3366	Active redriver architecture (not passive ESD+conditioning), higher power (12 mW vs 3 mW), no 5VOUT protection	Used for signal regeneration over >10 m cables; lacks integrated 5V power delivery and fault reporting	Choose when TMDS signal degradation dominates design concerns - not for ESD robustness or power management focus.

Compared with TPD12S521 and PTN3366, the HDMI2C1-14HDS uniquely combines full HDMI 2.0 ESD protection, independent low-voltage CEC wake-up, HEAC dual-function pinning, and integrated 5VOUT fault management - making it the only single-chip solution meeting strict CTS requirements for premium consumer source devices.

Availability

HDMI2C1-14HDS is available at Aetrix Electronics and suitable for HD set-top boxes, Blu-ray players, and notebook graphics outputs requiring stable component supply, full HDMI 2.0 CTS compliance, and long-term lifecycle assurance.

Supply support for HDMI2C1-14HDS 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, designing and manufacturing analog, MCU, power, and interface solutions for automotive, industrial, and consumer markets.

The HDMI2C1-14HDS belongs to ST's HDMI interface protection product line, engineered specifically to simplify HDMI source design, accelerate CTS certification, and improve field reliability in consumer electronics applications.

FAQ

What is the maximum supported HDMI version and video resolution?

The HDMI2C1-14HDS supports HDMI 2.0 and HDMI 1.4 specifications, enabling transmission of uncompressed video up to 4K@60 fps (3840×2160 at 60 Hz) with YCbCr 4:4:4 color space. Its TMDS ESD protection is characterized for 3.4 Gbps per lane, matching the 10.2 Gbps aggregate bandwidth required for HDMI 2.0.

Does the device require external pull-up resistors on DDC or CEC lines?

No external pull-ups are required on DDC (SCL/SDA) lines because the HDMI2C1-14HDS integrates dynamic pull-up circuitry synchronized with I²C activity. For CEC, an external 27 kΩ pull-up (R1 per Figure 11) is required on the cable side per HDMI specification, but no pull-up is needed on the ASIC side due to internal level-shifting and drive capability.

How does the CEC wake-up function operate during system standby?

When VDD_5V and VDD_IC are powered down, the CEC block remains active if VDD_CEC_IC (1.8–3.63 V) and VDD_CEC (2.97–3.63 V) are supplied. The CEC_IC pin stays functional, allowing the ASIC to monitor CEC commands and assert wake-up signals - all other outputs (DDC, HPD, 5VOUT) enter high-impedance mode to minimize leakage.

What thermal management considerations apply to the QFN package?

The HDMI2C1-14HDS uses a 4 mm × 4 mm QFN with exposed thermal pad. ST recommends soldering the pad to a minimum 100 mm² copper pour with ≥4 thermal vias (0.3 mm diameter) to inner ground planes. Junction-to-board thermal resistance is 35 °C/W; maximum junction temperature must stay ≤125 °C under worst-case 5VOUT load and ambient conditions.

HDMI2C1-14HDS Specifications

Product attributes: Attribute value

Manufacturer:: STMicroelectronics

Series:: -

Package/Case:: 24-VFQFN Exposed Pad

Packaging:: Tape & Reel (TR)

Product Status:: Active

Function:: Signal Conditioner

Applications:: Consumer Video

Standards:: HDMI 2.0

Control Interface:: I2C

Voltage - Supply:: 1.62V ~ 3.63V

Mounting Type:: Surface Mount

Grade:: -

Qualification:: -

Supplier Device Package:: 24-QFN (4x4)

HDMI2C1-14HDS FAQ

1.How can I place an order for HDMI2C1-14HDS through Aetrix?

Please submit a Request for Quotation (RFQ) for HDMI2C1-14HDS 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 HDMI2C1-14HDS reliable?

The price and inventory of HDMI2C1-14HDS are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for HDMI2C1-14HDS is usually 5 days.

3.What payment methods are accepted for HDMI2C1-14HDS?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for HDMI2C1-14HDS transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for HDMI2C1-14HDS?

HDMI2C1-14HDS orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your HDMI2C1-14HDS 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 HDMI2C1-14HDS?

For technical support, including HDMI2C1-14HDS datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your HDMI2C1-14HDS requirements.

6.How does Aetrix verify that HDMI2C1-14HDS is sourced from the original manufacturer or authorized distributors?

All HDMI2C1-14HDS 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 HDMI2C1-14HDS meets industry standards.

7.What is the process for return or replacement of HDMI2C1-14HDS?

All HDMI2C1-14HDS units undergo pre-shipment inspection (PSI). If there is an issue with HDMI2C1-14HDS, 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 HDMI2C1-14HDS part is unused and in its original packaging.

Return procedure for HDMI2C1-14HDS:

1.Submit a request within 90 days.

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

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