Overview
The SN74LV1T34DBVRG4 is a single buffer gate logic device produced by Texas Instruments. It belongs to the LVxT family of logic devices, which are designed for integrated voltage level translation. This device operates over a wide voltage range, making it suitable for various applications including industrial, portable, telecom, and automotive systems. The SN74LV1T34DBVRG4 supports output levels referenced to the supply voltage, enabling compatibility with 1.8-V, 2.5-V, 3.3-V, and 5-V CMOS levels. The input thresholds are designed to match 1.8 V input logic at VCC = 3.3 V, facilitating level-up translation from 1.8 V to 3.3 V and down translation from 3.3 V to 2.5 V or other lower voltage levels.
Key Specifications
| Parameter | Test Conditions | Unit | Min | Typ | Max |
|---|---|---|---|---|---|
| VCC Range | V | 1.8 | 5.5 | ||
| Input Thresholds (VIH/VIL) | VCC = 3.3V | V | 0.55 / 0.8 | 0.99 / 0.8 | |
| Output Drive Capability | mA | 8 | |||
| Input Capacitance (Ci) | VI = VCC or GND | pF | 2 | 10 | |
| Output Capacitance (Co) | VO = VCC or GND | pF | 2.5 | 2.5 | |
| Package Types | DBV (SOT-23, 5), DCK (SC70, 5) | ||||
| Package Size | mm | 2.90 x 2.8 (DBV), 2.00 x 2.1 (DCK) |
Key Features
- Single buffer gate with reduced input thresholds for voltage translation applications.
- Operates over a wide VCC range of 1.8 V to 5.5 V.
- Supports 1.8-V, 2.5-V, 3.3-V, and 5-V CMOS levels.
- 5 V tolerant input pins for down translation.
- Current-drive capability of 8 mA to reduce line reflections, overshoot, and undershoot.
- Available in DBV (SOT-23, 5) and DCK (SC70, 5) packages.
Applications
- Industrial applications requiring voltage level translation.
- Portable electronics needing low-voltage operation.
- Telecom systems requiring flexible voltage levels.
- Automotive systems where robust and reliable logic is essential.
Q & A
- What is the primary function of the SN74LV1T34DBVRG4?
The primary function is to act as a single buffer gate with integrated voltage level translation.
- What is the operating voltage range of the SN74LV1T34DBVRG4?
The device operates over a VCC range of 1.8 V to 5.5 V.
- What CMOS levels does the SN74LV1T34DBVRG4 support?
It supports 1.8-V, 2.5-V, 3.3-V, and 5-V CMOS levels.
- What is the significance of the 5 V tolerant input pins?
The 5 V tolerant input pins enable down translation, such as from 3.3 V to 2.5 V output at VCC = 2.5 V.
- What is the current-drive capability of the SN74LV1T34DBVRG4?
The device has a current-drive capability of 8 mA.
- What are the available package types for the SN74LV1T34DBVRG4?
The device is available in DBV (SOT-23, 5) and DCK (SC70, 5) packages.
- Why is it important to connect unused input pins?
Unused input pins must be connected to a logic high or logic low voltage to prevent undefined operational states.
- What are some common applications of the SN74LV1T34DBVRG4?
Common applications include industrial, portable electronics, telecom systems, and automotive systems.
- How does the SN74LV1T34DBVRG4 handle input thresholds for different voltage levels?
The device is designed with lower threshold circuits to match 1.8 V input logic at VCC = 3.3 V and supports various input thresholds for different voltage levels.
- Where can I find detailed specifications and documentation for the SN74LV1T34DBVRG4?
Detailed specifications and documentation can be found on the Texas Instruments website and in the device's datasheet.
