Overview
The SN74LVC2G34DBVR, produced by Texas Instruments, is a dual buffer gate device designed for a wide range of voltage operations from 1.65 V to 5.5 V. This device is part of the LVC (Low-Voltage CMOS) family and is available in several package options, including the SOT-23 package for the DBVR variant. It performs the Boolean function Y = A in positive logic, making it suitable for various high-speed and low-power applications. The device features advanced Ioff circuitry, which disables the outputs during partial-power-down conditions, preventing damaging current backflow and supporting live insertion, partial-power-down mode, and back-drive protection.
Key Specifications
| Parameter | Min | Max | Unit | Description |
|---|---|---|---|---|
| VCC (Supply Voltage) | 1.65 | 5.5 | V | Operating supply voltage range |
| VI (Input Voltage) | -0.5 | 6.5 | V | Input voltage range |
| VO (Output Voltage in High-Impedance or Power-Off State) | -0.5 | 6.5 | V | Output voltage range in high-impedance or power-off state |
| tpd (Propagation Delay Time) | 1.4 | 4.1 | ns | Propagation delay time at different VCC levels |
| ICC (Quiescent Current) | 10 | µA | Maximum quiescent current | |
| IO (Continuous Output Current) | ±50 | mA | Continuous output current per pin | |
| TJ (Junction Temperature) | -40 | 125 | °C | Junction temperature range |
| Tstg (Storage Temperature) | -65 | 150 | °C | Storage temperature range |
Key Features
- Operates from 1.65 V to 5.5 V supply voltage, allowing for down voltage translation.
- Inputs are 5.5-V tolerant, enabling the device to accept voltages up to 5.5 V.
- Maximum propagation delay time of 4.1 ns at 3.3 V.
- Low power consumption with a maximum ICC of 10 µA.
- High output drive capability of ±24 mA at 3.3 V.
- Ioff circuitry supports live insertion, partial-power-down mode, and back-drive protection.
- ESD protection exceeds JESD 22 standards: 2000-V Human Body Model, 200-V Machine Model, and 1000-V Charged-Device Model.
- Latch-up performance exceeds 100 mA per JESD 78, Class II.
Applications
- AV Receivers
- Audio Docks: Portable
- Blu-ray Player and Home Theaters
- DVD Recorders and Players
- Embedded PCs
- MP3 Players and Recorders (Portable Audio)
- Personal Digital Assistant (PDA)
- Power: Telecom/Server AC/DC Supply: Single Controller: Analog and Digital
- Solid-State Drive (SSD): Client and Enterprise
- TV: LCD/Digital and High-Definition (HDTV)
- Tablets: Enterprise
- Video Analytics: Servers
- Wireless Headsets, Keyboards, and Mice
Q & A
- What is the operating voltage range of the SN74LVC2G34DBVR?
The SN74LVC2G34DBVR operates from 1.65 V to 5.5 V.
- What is the maximum propagation delay time at 3.3 V?
The maximum propagation delay time at 3.3 V is 4.1 ns.
- What is the maximum output drive current at 3.3 V?
The maximum output drive current at 3.3 V is ±24 mA.
- Does the SN74LVC2G34DBVR support partial-power-down applications?
Yes, the device supports partial-power-down applications using Ioff circuitry.
- What is the ESD protection level of the SN74LVC2G34DBVR?
The ESD protection exceeds JESD 22 standards: 2000-V Human Body Model, 200-V Machine Model, and 1000-V Charged-Device Model.
- What are the typical applications of the SN74LVC2G34DBVR?
The device is used in various applications including AV receivers, audio docks, Blu-ray players, DVD recorders, embedded PCs, and more.
- How does the Ioff feature work in the SN74LVC2G34DBVR?
The Ioff circuitry disables the outputs during partial-power-down conditions, preventing damaging current backflow and supporting live insertion and back-drive protection.
- What is the junction temperature range of the SN74LVC2G34DBVR?
The junction temperature range is from -40°C to 125°C.
- What are the recommended operating conditions for the input transition rise or fall rate?
The recommended input transition rise or fall rate varies by VCC level, but typically is around 10 ns/V at 3.3 V.
- How should unused inputs be handled in the SN74LVC2G34DBVR?
Unused inputs must be held at VCC or GND to ensure proper device operation.
