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MC74VHC1GT125DFT1G
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Product Detailed Parameters
- Description：SINGLE NON-INVERTING BUFFER, 3-S
- Series：74VHC
- Mfr：onsemi
- Package：Tape & Reel (TR),Cut Tape (CT)
- Logic Type：Buffer, Non-Inverting
- Number of Elements：1
- Number of Bits per Element：1
- Input Type：-
- Output Type：3-State
- Current - Output High, Low：8mA, 8mA
- Voltage - Supply：2V ~ 5.5V
- Operating Temperature：-55°C ~ 125°C (TA)
- Mounting Type：Surface Mount
- Package / Case：5-TSSOP, SC-70-5, SOT-353
- Supplier Device Package：SC-88A (SC-70-5/SOT-353)
- Grade：-
- Qualification：-
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Overview
The MC74VHC1GT125DFT1G is a single non-inverting 3-state buffer from the 74VHC series, manufactured by onsemi. It operates within a supply voltage range of 2.0 V to 5.5 V and features TTL-level input thresholds. The device provides high noise immunity through its buffered three-stage internal circuit and includes over-voltage tolerant inputs and outputs up to 5.5 V. It supports partial power down protection via IOFF and delivers source/sink currents of 8 mA at 3.0 V. Packaged in SC-88A (SOT-353), it occupies minimal board space with chip complexity under 100 FETs.
Feature Summary
- Features TTL-level input thresholds for direct interfacing with 5 V circuits while operating at lower voltages.
- Includes over-voltage tolerant input and output structures that protect against voltage mismatches and hot insertion events.
- Supports partial power down mode to prevent back-driving during system power-down states.
Applications
- Interface bridging between 5 V logic circuits and 3 V logic systems
- Memory address and data bus driving applications
- Clock distribution networks requiring controlled signal buffering
Procurement Notes
Verify the specific ordering suffix 'DT' corresponds to the SC-88A package and tape & reel shipping configuration as defined in the official datasheet. Confirm that the TTL threshold variant matches the design requirements, distinguishing it from the CMOS threshold version. Ensure compliance with RoHS standards and lead-free packaging specifications required for the target assembly process.
Selection Notes
Select this component when a compact, single-channel buffer with TTL-compatible input thresholds is required. It is suitable for designs needing robust protection against supply voltage mismatches or hot-swap conditions. Consider the SC-88A package dimensions for tight layout constraints and verify that the 8 mA drive capability meets the load requirements of the destination circuitry.
Part Context
This part belongs to the MC74VHC1G125/MC74VHC1GT125 family of single buffers. The 'T' designation indicates TTL-level input thresholds, differentiating it from the standard CMOS threshold variant. It is part of onsemi's portfolio of tiny footprint logic devices designed for portable and space-constrained electronic applications.
Replacement Considerations
MC74VHC1GT125DFT2G: Same device in SC-88A package with alternative pin 1 orientation in the tape and reel.
FAQ
What distinguishes the MC74VHC1GT125 from the MC74VHC1G125?
The MC74VHC1GT125 has TTL-level input thresholds, whereas the MC74VHC1G125 has CMOS-level input thresholds.
How does the device handle partial power down scenarios?
The IOFF feature supports partial power down protection, preventing current flow through the inputs or outputs when the device is powered off but the system is active.
