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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 SN74AHCT1G14DCKR is a single Schmitt-trigger inverter from the Texas Instruments 74AHCT series, designed for CMOS technology with TTL-compatible inputs. It operates within a supply voltage range of 2.7V to 5.5V and features low static power consumption. The device utilizes an SC-70-5 (SOT-353) surface-mount package, providing efficient signal inversion with noise immunity. It supports a maximum propagation delay of 10.6ns at 5V with 50pF load and functions reliably across an industrial temperature range of -40°C to 85°C.
Feature Summary
- TTL-compatible input thresholds enable direct interfacing with TTL logic systems while maintaining CMOS output characteristics.
- Schmitt-trigger action provides hysteresis to filter noisy signals and ensure clean transitions at the output.
- Low static power consumption makes the component suitable for battery-powered or energy-efficient applications.
Applications
- Signal conditioning for noisy digital lines requiring noise immunity
- Waveform shaping of slow-rise or slow-fall time signals
- Level shifting between TTL and CMOS logic domains
Procurement Notes
Verify the specific suffix DCKR corresponds to the SC-70-5 tape-and-reel packaging configuration. Confirm that the AHCT designation matches the required 2.7V–5.5V operating voltage range for your system design. Ensure compatibility with the specified 85°C maximum junction temperature limit during thermal analysis.
Selection Notes
Select this component when TTL-compatible inputs are necessary alongside Schmitt-trigger noise immunity in a minimal footprint. Compare against standard AHC variants if lower voltage operation below 2.7V is required, as AHCT devices typically do not support voltages below their minimum threshold. Verify package availability in SC-70-5 for space-constrained PCB layouts.
Part Context
This part belongs to the Texas Instruments 74AHCT family of high-speed CMOS logic gates. The 'A' denotes advanced technology, 'H' indicates high-speed CMOS performance, and 'CT' specifies TTL-compatible inputs. The '1G' signifies a single gate per package, and '14' identifies the inverter function with Schmitt-trigger inputs.
Replacement Considerations
SN74AHC1G14DCKR: Similar function but lacks TTL-compatible input thresholds; requires voltage level verification. SN74LVC1G14DCKR: Lower voltage operation (1.65V–5.5V) but different input characteristics. SN74HC1G14DCKR: Standard HC speed without TTL compatibility.
