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Product Detailed Parameters
- Description：IC INVERT SCHMITT 6CH 6INP 14DIP
- Series：74AHC
- Mfr：Texas Instruments
- Package：Bulk
- Logic Type：Inverter
- Number of Circuits：6
- Number of Inputs：6
- Features：Schmitt Trigger
- Voltage - Supply：2V ~ 5.5V
- Current - Quiescent (Max)：1 µA
- Current - Output High, Low：8mA, 8mA
- Input Logic Level - Low：1.9V ~ 3.35V
- Input Logic Level - High：2.2V ~ 3.85V
- Max Propagation Delay @ V, Max CL：10.6ns @ 5V, 50pF
- Operating Temperature：-40°C ~ 125°C
- Mounting Type：Through Hole
- Supplier Device Package：14-PDIP
- Package / Case：14-DIP (0.300", 7.62mm)
- Grade：-
- Qualification：-
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Overview
The SN74AHC14N is a commercial-grade hex Schmitt-trigger inverter manufactured by Texas Instruments. It operates within a supply voltage range of 2V to 5.5V and supports an operating temperature from -40°C to +125°C. The device provides balanced output drive capabilities, sourcing and sinking up to 8mA at 5V. It features high ESD protection exceeding JESD 22 standards, including 2000V for the human-body model. The package type is PDIP-14.
Feature Summary
- Schmitt-trigger inputs provide distinct positive and negative switching thresholds to ensure noise resistance against slow or noisy signals.
- Wide operating voltage range allows compatibility with various system logic levels.
- High electrostatic discharge protection ensures robustness during manufacturing and handling.
Applications
- UPS systems
- White goods
- Computer peripherals
- Printers
- AC servo drives
Procurement Notes
Verify that the specific part number matches the required commercial grade (SN74) rather than military grade (SN54). Confirm the package style corresponds to the through-hole PDIP-14 variant. Ensure the ordering suffix aligns with the desired lead finish and moisture sensitivity level ratings as defined in the manufacturer's packaging addendum.
Selection Notes
Select this component when input signal integrity requires hysteresis to prevent oscillation caused by noise or slow rise times. It is suitable for applications needing multiple independent inverters within a single package. Consider the 8mA drive capability for direct interfacing with standard loads without additional buffering.
Part Context
This device belongs to the SNx4AHC14 family of hex Schmitt-trigger inverters. It performs the Boolean function Y = A using CMOS technology. The N suffix specifically designates the 14-pin Plastic Dual In-Line Package (PDIP), distinguishing it from surface-mount options like SOIC or TSSOP variants within the same logical family.
Replacement Considerations
Direct substitutes include other SN74AHC14 variants with different packages such as SN74AHC14DR (SOIC) or SN74AHC14PWR (TSSOP), provided the PCB footprint accommodates the change. Verify thermal characteristics and pinout compatibility before substitution.
FAQ
How does the Schmitt-trigger action benefit the SN74AHC14N?
It provides different input threshold levels for positive-going and negative-going signals, enabling input noise resistance and preventing oscillation with slow or noisy inputs.
What is the maximum output drive current for this device?
The outputs can source or sink up to 8mA at a 5V supply voltage.
