Microchip KSZ80 series , specifically noted for variants like the
, represents a family of compact, single-chip 10Base-T/100Base-TX Ethernet Physical Layer (PHY) transceivers designed for low power and high reliability. These components are fundamental in connecting networking hardware to the physical medium, such as copper or fiber-optic cables. Key Technical Highlights
The KSZ80 series is engineered to simplify board design while maintaining robust performance: Integrated Termination
: Includes on-chip termination resistors for differential pairs, which reduces component count and simplifies PCB layout. Auto MDI/MDI-X
: Features HP Auto MDI/MDI-X to automatically detect and correct straight-through or crossover cable connections. Power Efficiency
: Supports multiple power-saving modes and energy-efficient Ethernet (EEE) to minimize power consumption when idle or when the cable is disconnected. LinkMD® Diagnostics
: Provides TDR-based cable diagnostics to identify faulty copper cabling, such as shorts or open circuits. Wake-on-LAN (WOL)
: Supports remote wake-up via magic packets or custom packet detection, ideal for power-managed systems. Interface and Physical Specs Interface Options : Most models support standard (Media Independent Interface) or
(Reduced Media Independent Interface) for flexible integration with various MAC controllers. : Typically available in small-footprint packages like the 48-pin LQFP
(7 mm x 7 mm), making them suitable for space-constrained industrial and consumer devices. Supply Voltage
: Operates on a single 3.3V supply with options for 1.8V, 2.5V, or 3.3V I/O voltage levels to match different processor requirements. Typical Applications
Given their industrial temperature rating (-40°C to +85°C) and diagnostic features, these transceivers are commonly found in: Industrial controllers and automation hardware. Set-top boxes and game consoles. Printers, IP phones, and SOHO networking equipment.
For the most accurate technical data, it is recommended to consult the official KSZ8091 Datasheet KSZ8081MLX Datasheet provided by Microchip Technology driver configuration steps for this component?
KSZ9031RNX - Gigabit Ethernet Transceiver with RGMII Support
The keyword "KSZ80 OB S4LV0.2" does not refer to a standalone semiconductor component like a typical Ethernet transceiver. Instead, it is the identifying marking for a T-CON (Timing Controller) board typically used in Sony BRAVIA LCD televisions, most notably the Sony KDL-40R470A
The term "KSZ80" in this context is part of the board’s silk-screen assembly number, and it should not be confused with the Microchip KSZ8081 series of Ethernet PHYs, which share a similar prefix but serve entirely different functions. Overview of the KSZ80 OB S4LV0.2 T-CON Board
The T-CON board acts as the "brain" of the display panel. It receives video data from the television's main logic board (via LVDS cables) and translates it into the specific timing signals required by the Source and Gate drivers to activate the individual pixels on the LCD. Primary Application: Used extensively in the Sony KDL-40R470A and related 40-inch LED/LCD models.
Board Markings: KSZ80 OB, S4LV0.2, and often secondary identifiers like LJ94-25257D LJ94-25482B
Role in TV Repair: This board is the first suspect when a TV has sound but no picture, or shows vertical/horizontal lines and distorted colors. Technical Specifications and Connectivity ksz80 ob s4lv02 datasheet
While a full "datasheet" in the semiconductor sense isn't public (as these are proprietary Sony/Samsung parts), repair technicians rely on the following technical characteristics: Specification Input Interface Dual-channel LVDS (Low-Voltage Differential Signaling) Compatible Screen Size 40-inch LED/LCD Panels Major ICs
Typically includes a Samsung or Sony proprietary timing controller chip Power Inputs 12V (VCC), VGH, VGL, and AVDD (Analog Supply) Status Indicators
Surface-mount LEDs (on some revisions) to indicate power-good status Troubleshooting Common Faults
If you are searching for this board's datasheet to repair a faulty television, look for these common failure points:
SMD Fuse Failure: The most common issue is a blown surface-mount fuse (often labeled F1) near the LVDS connector. If this fuse is open, the board receives no power, resulting in a black screen despite a working backlight.
Gamma IC Failure: Distorted or "washed out" colors are often caused by a failing Gamma IC (AS15-F or similar) which manages the reference voltages for color accuracy.
VGH/VGL Voltage Issues: Using a multimeter, technicians check for VGH (typically +20V to +30V) and VGL (typically -5V to -10V). If these are missing, the screen will likely remain blank or display a slowly fading image. Where to Source Parts
Because these boards are specific to certain TV models, they are typically found as salvaged or refurbished parts rather than new retail items. You can find listings for this specific board on eBay or Kupindo.
Are you attempting to diagnose a specific display issue like a black screen or color distortion on your Sony TV? Kupindohttps://www.kupindo.com SONY panel KSZ80 OB S4LV0.2 - Kupindo.com (70628949)
Table_title: SONY panel KSZ80 OB S4LV0.2 Table_content: header: | Želi ovaj predmet: | 1 | row: | Želi ovaj predmet:: Stanje: | 1: Harry Electronicshttps://www.harryelectronics.com T.CON BOARD SONY KDL-40R470A KSZ80 OB S4LV0.2
The identifier KSZ80_0B_S4LV0.2 (often stylized as KSZ80-0B-S4LV0.2) refers to a specific LED/LCD TV Scaler PCB Board, rather than a standalone semiconductor datasheet. This board acts as a critical intermediary in modern display technology, translating incoming video signals into a format that the television's display panel can interpret. Overview of the KSZ80_0B_S4LV0.2 Scaler Board
The KSZ80_0B_S4LV0.2 is a specialized hardware component commonly found in the internal circuitry of LED and LCD televisions. In the context of TV repair and manufacturing, it is known as a Panel Scaler PCB.
Primary Function: Its main role is to "scale" and process video data to match the native resolution and timing requirements of the specific LCD panel it is paired with.
Compatibility: This board is designed for specific TV models; compatibility is usually determined strictly by matching the PCB number (KSZ80_0B_S4LV0.2) found printed on the board itself.
Originality and Testing: Because these boards are vital for maintaining original display quality, they are often sourced as "original parts" to ensure no loss in color accuracy or refresh rates. The Role of the KSZ80 Series Technology
While the board itself is a system-level component, its nomenclature likely draws from the Microchip/Micrel KSZ80 series of Ethernet Physical Layer (PHY) transceivers.
Network Capabilities: Many modern "Smart TV" scaler boards integrate KSZ80-series PHYs (such as the KSZ8091 or KSZ8081) to provide 10/100Mbps Ethernet connectivity.
Advanced Features: These chips offer features like Wake-on-LAN (WOL), Energy Efficient Ethernet (EEE), and LinkMD® cable diagnostics, which help the TV maintain stable internet connections for streaming services. Summary of Technical Specifications Microchip KSZ80 series , specifically noted for variants
When looking for a "datasheet" for this specific board, technicians typically refer to the service manual of the television or the functional specs of its primary ICs. Part Type: LED/LCD Scaler Board (PCB).
Typical Supply Voltage: Generally operates within the standard internal TV power rails (often 3.3V or 5V for the logic, with separate voltages for the panel).
Interfaces: Often includes MII/RMII for network data and LVDS or mini-LVDS for sending video data to the panel. KSZ8081MNX/RNB Data Sheet - Microchip Technology
The KSZ80_0B_S4LV0.2 is a specific LED/LCD TV Scaler PCB Board (or Panel Scaler Board) used in television displays. Key Specifications & Identification Part Type: Scaler Board / Panel Scaler PCB.
PCB Number: KSZ80_0B_S4LV0.2 (sometimes written with underscores or hyphens as KSZ80-0B-S4LV0.2).
Application: It is a critical component for processing video signals for the LED/LCD panel. Technical and Installation Notes
Professional Handling Required: This board typically requires professional installation using an LED Panel bonding machine (specifically for COF punching). It is not considered a user-replaceable part without specialized industrial equipment.
Originality: When sourcing this part, ensure it is a 100% original match to the PCB number to maintain the TV's original display quality.
Suppliers: This part is often stocked by specialized electronics suppliers like Great Bharat Electronics, who test these units under real TV simulation conditions. Buy Original LED TV Scaler PCB Board KSZ80-0B-S4LV0.2
✅ Type of Part. LED/LCD Scaler Board (Panel Scaler PCB) Number KSZ80_0B_S4LV0.2. 🔒 Assurance of Originality. This product is 100% Great Bharat Electronics Buy Original LED TV Scaler PCB Board KSZ80-0B-S4LV0.2
✅ Type of Part. LED/LCD Scaler Board (Panel Scaler PCB) Number KSZ80_0B_S4LV0.2. 🔒 Assurance of Originality. This product is 100% Great Bharat Electronics
The string "ksz80 ob s4lv02" appears to be a specific internal or partial part marking for a member of the Microchip KSZ8081 (formerly Micrel) family of 10/100 Ethernet transceivers.
The primary technical reference for this device is the Microchip KSZ8081MNX/RNB Data Sheet . Key Specifications & Features
The KSZ8081 is a highly integrated, single-chip Physical Layer (PHY) transceiver designed for low-power and cost-sensitive applications.
Ethernet Support: Full compliance with IEEE 802.3 10Base-T/100Base-TX standards. Host Interfaces:
MII (Media Independent Interface): Supported by the KSZ8081MNX and MLX variants.
RMII (Reduced Media Independent Interface): Supported by the KSZ8081RNA/RNB/RND variants.
Power Supply: Operates on a single 3.3V supply, featuring an integrated 1.2V LDO regulator for the core. Step 2: Download the Master Datasheet Go to
Diagnostics: Includes LinkMD® TDR-based cable diagnostics to identify faults like open or shorted cables.
I/O Flexibility: Supports digital I/O voltages of 1.8V, 2.5V, or 3.3V. Common Device Variants
Microchip offers several versions of the KSZ8081 based on package size and clocking needs: Microchip Ethernet Transceiver DigiKey& more Go to product viewer dialog for this item.
24-pin QFN; uses a 25MHz crystal to output a 50MHz RMII clock to the MAC. KSZ8081RNB
32-pin QFN; offers a similar RMII interface with dedicated LED outputs.
Microchip Technology KSZ8081RNDIA-TR IC TRANSCEIVER FULL 1/1 24QFN Go to product viewer dialog for this item.
24-pin QFN; expects a 50MHz RMII reference clock as an input. Microchip Ethernet Transceiver DigiKey& more Go to product viewer dialog for this item. 32-pin QFN; supports the MII interface. Applications The KSZ8081 family is commonly integrated into: Game consoles and IP set-top boxes. Industrial Ethernet systems and IP phones. LOM (LAN on Motherboard) implementations. KSZ8081MNX/RNB Data Sheet - Microchip Technology
It sounds like you’re looking for a datasheet or technical information on a part labeled “KSZ80 OB S4LV02” — possibly a memory chip (S4LV02 suggests a 2 Mbit SRAM or similar) combined with a KSZ80 marking (which could be a network controller or a custom ASIC).
However, I should be upfront: there is no widely known standard component with the exact string “KSZ80 OB S4LV02” in official datasheet databases (e.g., from Micron, Cypress, ISSI, Microchip, etc.).
Here’s a breakdown of what you might be dealing with — and a possible story behind the label:
Go to Microchip’s official website and search for:
| Part you see | Real part | Type | |--------------|-----------|------| | S4LV02 | Sony CXK4S4LV02 | 2Mbit Low-Voltage SRAM | | KSZ80 | Possibly KSZ8721 or KSZ8081 | Ethernet PHY/switch |
They are two different chips combined in a BOM or silkscreen label “KSZ80 OB S4LV02” as a board assembly code or handwritten note.
If you can share a photo of the chip marking and package, I can likely identify it exactly. Would you like help searching a specific manufacturer database instead?
Here is the correction of the text:
KSZ8081MNX or KSZ8081MND (for different packages or automotive grades). It could also be a typo for the SLLS452 document number (often seen on older Texas Instruments PHY datasheets), but given the "ksz" prefix, the Microchip/Micrel part is the primary match.A typical circuit design using the KSZ8081 involves the following connections:
Look at the chip under a microscope or magnifying glass. Count the pins.