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74AHC1G125GW

74AHC1G125GW

MPN: 74AHC1G125GW,125
Nexperia USA Inc.
Buffer, Non-Inverting 1 Element 1 Bit per Element 3-State Output 5-TSSOP
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Overview

The 74AHC1G125GW is a single non-inverting bus buffer with a 3-state output controlled by an output enable (OE) input. It is designed to operate over a wide voltage range of 2V to 5.5V, making it compatible with both legacy 5V systems and modern low-voltage logic. The device features high noise immunity and overvoltage tolerant inputs, allowing for safe interfacing with signals exceeding the supply voltage.

Why Choose This Part

This buffer offers balanced propagation delays and symmetrical output impedance for high-speed signal integrity. Its low power CMOS dissipation of 10uA in standby makes it ideal for battery-operated devices, while its latch-up performance exceeding 100mA ensures high reliability in industrial environments.

Applications

Bus Isolation
Disconnecting specific segments of a shared data bus to reduce capacitive loading or manage signal routing.
Voltage Level Shifting
Utilizing 5V tolerant inputs to interface between different logic voltage domains in mixed-signal systems.
LED Driving
Providing up to 8mA of source or sink current to drive status indicators directly from a microcontroller pin.
Microcontroller I/O Expansion
Acting as a high-impedance buffer to protect sensitive MCU pins from external signal noise or transient spikes.

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 2V ~ 5.5V
Number of Elements 1
Operating Temperature -40degC ~ 125degC (TA)
Supplier Device Package 5-TSSOP
Current - Output High, Low 8mA, 8mA
Number of Bits per Element 1

Getting Started

When integrating this TSSOP5 component, ensure a 0.1uF bypass capacitor is placed close to the VCC pin to minimize switching noise. The OE input must be tied high to disable the output or low for normal operation; it should not be left floating to avoid unpredictable logic states. Prototyping can be achieved using SOT-353 to DIP adapter boards.