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Product Detailed Parameters
- Description：IC INVERT SCHMITT 1CH 1IN SC70-5
- Series：74AHCT
- Mfr：Texas Instruments
- Package：Tape & Reel (TR),Cut Tape (CT)
- Logic Type：Inverter
- Number of Circuits：1
- Number of Inputs：1
- Features：Schmitt Trigger
- Voltage - Supply：4.5V ~ 5.5V
- Current - Quiescent (Max)：1 µA
- Current - Output High, Low：8mA, 8mA
- Input Logic Level - Low：0.5V ~ 0.6V
- Input Logic Level - High：2V
- Max Propagation Delay @ V, Max CL：8ns @ 5V, 50pF
- Operating Temperature：-40°C ~ 125°C
- Mounting Type：Surface Mount
- Supplier Device Package：SC-70-5
- Package / Case：5-TSSOP, SC-70-5, SOT-353
- Grade：-
- Qualification：-
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Overview
The SN74AHCT1G14DCKRG4 is a single-channel Schmitt-trigger inverter from the Texas Instruments 74AHCT logic family. It operates within a supply voltage range of 4.5 V to 5.5 V and features SOT-23-5 packaging. The device provides balanced push-pull outputs with a maximum low-level output current of 8 mA and a high-level output current of -8 mA. It exhibits a typical propagation delay of 8 ns at 5 V with a 50 pF load. The component supports an extended operating temperature range from -40°C to +125°C and includes overvoltage tolerant inputs.
Feature Summary
- Schmitt-trigger input action for noise immunity
- CMOS technology with balanced outputs
- Overvoltage tolerant inputs
Applications
- Signal conditioning for noisy environments
- Pulse width modulation signal shaping
- Oscillator circuits requiring defined switching thresholds
Procurement Notes
Verify the G4 suffix indicates lead-free and RoHS compliance per Texas Instruments standards. Confirm the DCKR package designation corresponds to the SC-74A or SOT-753 form factor. Ensure the AHCT series compatibility matches the 5V system logic levels required for the specific application design.
Selection Notes
Select this component when interfacing 5V CMOS logic with noisy signals requiring hysteresis. The AHCT series ensures TTL-compatible input thresholds while maintaining AHC speed characteristics. Verify that the 8 mA drive strength meets the capacitive load requirements of the downstream circuitry without exceeding specified limits.
Part Context
This part belongs to the SN74AHCT1Gxx series of single-function gates. It shares the same pinout and electrical characteristics as the SN74AHCT1G14DCKR, with the G4 suffix denoting environmental compliance modifications. It is designed for compact surface-mount applications where space efficiency and signal integrity are critical.
Replacement Considerations
The SN74AHCT1G14DBVR serves as a direct functional substitute with identical specifications but utilizes the SOT-23-5 (DBV) package instead of the SC-74A (DCK) footprint. Cross-reference datasheets to confirm package dimension compatibility before substitution.
