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SN74LVC1G126DCKR

TISN74LVC1G126DCKR

Texas Instruments
Buffer, Non-Inverting 1 Element 1 Bit per Element 3-State Output SC-70-5
NRND59,708 in stock

Overview

The SN74LVC1G126DCKR is a single-channel, non-inverting bus buffer gate featuring a 3-state output and wide supply voltage range from 1.65V to 5.5V. This device is designed for high-speed operation with low power consumption, drawing a maximum of 10 microamps, making it suitable for modern low-voltage CMOS applications. The output is disabled when the output-enable (OE) input is low, placing the buffer in a high-impedance state.

Why Choose This Part

This buffer offers exceptional versatility with 5.5V tolerant inputs regardless of the supply voltage. It provides high drive capability of up to 32mA at 5V and includes Ioff protection, which simplifies the design of partially powered-down systems by preventing current leakage back into the power rails.

Applications

Bus Isolation
Used to disconnect a peripheral from a shared bus when not in use to prevent data contention.
Level Translation
Provides down translation from 5.5V input signals to the Vcc rail voltage for interfacing mixed-voltage logic.
Signal Buffering
Strengthens weak signals to drive high-capacitance loads or long PCB traces with up to 32mA of drive current.
Live Insertion Systems
Utilizes Ioff circuitry to prevent damaging backflow current when the device is powered down during hot-plugging.

Key Specifications

Logic Type Buffer, Non-Inverting
Output Type 3-State
Mounting Type Surface Mount
Package / Case 5-TSSOP, SC-70-5, SOT-353
Voltage - Supply 1.65V ~ 5.5V
Number of Elements 1
Operating Temperature -40degC ~ 125degC (TA)
Supplier Device Package SC-70-5
Current - Output High, Low 32mA, 32mA
Number of Bits per Element 1

Getting Started

To use this part, ensure the OE pin is driven high to enable the output; pulling it low will tri-state the output. Proper decoupling with a 0.1uF capacitor near the Vcc pin is recommended to manage switching noise, especially when driving high-current loads. For prototyping, use an SC-70 to DIP adapter board since this is a small surface-mount component.

Also Consider

SN74LVC1G125DCKR TITexas Instruments - An identical buffer but with an active-low output enable (OE bar) instead of active-high.