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74LVC1G125GV/DG125
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Product Detailed Parameters
- Description：BUS DRIVER, LVC/LCX/Z SERIES
- Series：74LVC
- Mfr：NXP USA Inc.
- Package：Bulk
- Logic Type：-
- Number of Elements：-
- Number of Bits per Element：-
- Input Type：-
- Output Type：-
- Current - Output High, Low：-
- Voltage - Supply：-
- Operating Temperature：-
- Mounting Type：-
- Package / Case：-
- Supplier Device Package：-
- Grade：-
- Qualification：-
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Overview
The NXP USA Inc. 74LVC1G125GV/DG125 is a single non-inverting bus buffer and line driver featuring three-state outputs controlled by an OE input. It operates within a supply voltage range of 1.65 V to 5.5 V, supporting mixed 3.3 V and 5 V environments. The device includes Schmitt-trigger inputs for slow signal tolerance and IOFF circuitry for partial power-down protection. It provides high noise immunity, direct TTL interface capability, and robust ESD protection exceeding 2000 V (HBM).
Feature Summary
- Three-state output controlled by the OE pin for bus isolation.
- IOFF circuitry prevents damaging backflow current during power-down.
- Schmitt-trigger inputs ensure tolerance for slow rise and fall times.
- Overvoltage tolerant inputs allow operation in mixed voltage systems.
Applications
- Partial power-down mode applications requiring backflow prevention.
- Mixed 3.3 V and 5 V system translation interfaces.
- Bus buffering and line driving with high noise immunity requirements.
Procurement Notes
Verify the specific package designation 'GV' corresponds to the SC-74A (SOT753) form factor as defined in the official ordering information table. Confirm that the suffix 'DG125' aligns with the manufacturer's standard packaging and marking codes. Ensure compatibility with the specified -40 °C to +125 °C temperature range for your operational environment.
Selection Notes
Select this component when a single-channel non-inverting buffer with active-high enable control is required. It is suitable for designs needing Schmitt-trigger action on inputs to handle noisy or slow signals. The wide supply range makes it appropriate for interfacing between different logic families without level shifting components.
Part Context
This part belongs to the Nexperia 74LVC family of low-voltage CMOS logic devices. The '1G' designation indicates a single functional element per package. The '125' series specifically denotes a non-inverting buffer with three-state outputs, distinguishing it from inverters or drivers with fixed outputs.
Replacement Considerations
Consult the official datasheet section on similar parts for verified substitutes. Potential replacements include other 74LVC1G125 variants with different packages such as GW (TSSOP5), GM (XSON6), or GN (XSON6), provided the pinout and electrical characteristics remain compatible with the design.
FAQ
How does the IOFF feature function?
The IOFF circuitry automatically disables the output when the device is powered down, preventing potentially damaging backflow current through the device if external voltages are present on the I/O pins.
What is the purpose of the Schmitt-trigger inputs?
The Schmitt-trigger action at all inputs makes the circuit tolerant of slower input rise and fall times, ensuring clean switching even with degraded signal edges.
