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The Texas Instruments SN74LVC1G125DBVR is a single bus buffer gate with 3-state output in a 5-pin SOT-23 (DBV) package. Operating from 1.65V to 5.5V VCC, it features an active-low output enable, overvoltage-tolerant inputs, and Ioff support. The 3-state output enables bus sharing and multiplexing applications.
Especificaciones
| Logic Type | Buffer/Driver with 3-State |
| Número de canales | 1 |
| VCC Range | 1.65V to 5.5V |
| Max Propagation Delay | 3.2ns at 3.3V |
| Output Drive | ±24mA at 3.3V |
| Output Enable | Active-Low (OE) |
| ICC (Max) | 10uA |
| Ioff | Yes |
| Paquete | SOT-23-5 (DBV) |
| Temperatura de funcionamiento | -40°C to +125°C |
Características
- Single buffer with 3-state output
- Active-low output enable (OE)
- Bus buffering and isolation
- I/O port expansion
- Level translation on buses
- Hot-swap and live insertion
- Multiplexed signal routing
- Shared bus isolation for I2C/SPI multiplexing
- Hot-swap card buffer for live insertion
- Level translation between logic voltage domains
- I/O port expansion and signal routing
- Power sequencing control with OE pin
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- Productos sanitarios: High-reliability components meet medical industry safety and compliance regulations, ensuring stable operation for medical equipment.
- Industrial Control & Consumer Electronics: Products conform to universal international electronic industry standards, suitable for long-term continuous operation of various equipment.
- Accepted Payment Methods
- T/T (Bank Wire Transfer): The primary settlement method for bulk orders and a widely used international payment channel.
- PayPal: Ideal for small orders, sample orders and quick payments.
Settlement Currency
US Dollar (USD) is the default settlement currency. RMB is available for domestic customers.
Bank Charges
All transfer fees, intermediary bank charges and other remittance-related expenses shall be borne by the buyer.
- Payment Requirements
- Sample and small orders: Shipment will be arranged upon full payment.
- In-stock bulk orders: Goods will be delivered within 2 to 3 working days after full payment.
- Logistics Partners
- International Express: DHL, FedEx, UPS, TNT
- Economy Logistics: Air freight and sea freight for large-volume cargo
- Domestic Delivery: SF Express, Yunda Express
- Order Processing Time
- In-stock items: Orders confirmed and fully paid before 14:00 (GMT+8) will be shipped on the same day. All other orders will be dispatched within 1 to 2 working days.
- Out-of-stock or sourced items: The delivery lead time will be confirmed separately according to brand and inventory status.
- Estimated Transit Time
- International Express: 3 – 7 working days globally
- Air Freight: 7 – 12 working days
- Sea Freight: 25 – 40 working days for heavy and large bulk cargo
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- Both freight prepaid and freight collect are available. Please provide your courier account number in advance if you choose freight collect.
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Within 24 hours after dispatch, we will send the tracking number, commercial invoice, packing list and other documents to your email or communication account. You may check the shipment status online in real time.
MOQ & Sample Service
We support flexible minimum order quantities for samples, small-batch and large-batch orders. All sample orders shall comply with the above shipping and payment policies.
Packaging Standard
All electronic components are packed with professional anti-static and shockproof materials. Original factory packaging is available for branded chips and integrated circuits.
Import Duties & Taxes
All import duties, customs clearance fees and local taxes incurred for international shipments shall be borne by the buyer. We will provide complete customs documents to assist you with clearance procedures.
- Handling of Lost or Damaged Goods
- In case of loss or severe damage during transit, please contact us within 48 hours after receiving the tracking information. We will assist you in filing a claim with the logistics provider.
- We shall not be liable for any losses caused by incorrect delivery address, wrong contact information or the buyer’s refusal to complete customs clearance.
- Address: Room 2919, Guoli Building, Huaqiang North, Futian District, Shenzhen, Guangdong Province, China
- Business Hours: 09:00 – 18:00, Monday to Friday. Closed on weekends and official public holidays.
- Notice: Please make an appointment via email or communication tools one day in advance, and present your order information upon pickup.
- All components are packed separately to avoid damage caused by friction and collision;
- Shockproof buffer materials are added for fragile products to ensure transportation safety;
- Each package is clearly marked with part number, quantity, batch number and specifications for easy inventory counting and management.
- Anti-static Packaging: Static-sensitive components such as chips, circuit boards and sensors are packaged with anti-static bags, shielding boxes and conductive foam in strict accordance with international anti-static standards to prevent static damage.
- Vacuum Moisture-proof Packaging: Moisture-sensitive components are vacuum-sealed with desiccants to isolate humid air, suitable for ocean transportation and long-term storage.
- Original Factory Packaging: Integrated circuits of brands such as NXP are delivered with original reels, trays or tubes by default, retaining complete original packaging and adapting to automated SMT production lines.
- Discrete Device Packaging: Discrete devices such as SMD resistors, power resistors and LEDs are quantitatively and classifiedly packaged with accurate quantity and clear marking.
- Connector / Aviation Connector Packaging: Hard outer packaging is adopted to prevent pin bending and structural deformation.
Aplicaciones
The TI SN74LVC1G125DBVR is a single bus buffer gate with 3-state output controlled by an active-low output enable (OE) pin in SOT-23-5 package. Operating from 1.65V to 5.5V, it provides bus isolation and multiplexing capabilities with overvoltage-tolerant inputs. The Ioff feature supports live insertion and partial power-down applications.
The SN74LVC1G125DBVR implements a non-inverting buffer with 3-state output control. When OE is low, the output follows the input (Y = A). When OE is high, the output is in a high-impedance (Hi-Z) state, effectively disconnecting from the bus. This enables multiple devices to share a common bus without contention. The Ioff circuitry ensures the output is disabled when VCC is 0V, preventing backflow current during hot-swap or partial power-down scenarios.
| Pin | Nombre | Tipo | Función |
|---|---|---|---|
| 1 | OE | Entrada | Output enable (active low) |
| 2 | A | Entrada | Data input |
| 3 | GND | Potencia | Suelo |
| 4 | Y | Salida | Buffer output (3-state) |
| 5 | VCC | Potencia | Positive supply (1.65-5.5V) |
| Fabricante | Número de pieza | Paquete | Notas |
|---|---|---|---|
| TI | SN74LVC1G126DBVR | SOT-23-5 | Active-high OE version |
| TI | SN74LVC1G125DCKR | SC-70-5 | Same function, smaller pkg |
| NXP | 74LVC1G125GW | TSSOP-5 | Equivalent function |
| onsemi | NC7SZ125M5X | SOT-23-5 | Equivalent |
| TI | SN74AUP1G125DBVR | SOT-23-5 | Ultra-low power version |
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