Overview
The SN74HCT14DR is a hex Schmitt-trigger inverter integrated circuit produced by Texas Instruments. This device contains six independent inverters that perform the Boolean function Y = A in positive logic. The Schmitt-trigger inputs are designed to provide a minimum separation between positive and negative switching thresholds, making them suitable for handling noisy or slow inputs without causing oscillation or excessive current draw.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Operating Voltage Range | 4.5 V to 5.5 V | V |
| Output Drive Capability | Up to 10 LSTTL loads | - |
| Power Consumption (ICC) | 20 µA (Maximum) | µA |
| Propagation Delay Time (tpd) | 18 ns (Typical at 5 V) | ns |
| Output Drive Current | ±4 mA at 5 V | mA |
| Input Current | 1 µA (Maximum) | µA |
| Operating Temperature Range | -40°C to 85°C | °C |
| Package Type | SOIC (D) | - |
| Number of Pins | 14 | - |
Key Features
- Operating voltage range of 4.5 V to 5.5 V
- Outputs can drive up to 10 LSTTL loads
- Low power consumption: 20-µA maximum ICC
- Typical propagation delay time of 18 ns at 5 V
- ±4-mA output drive at 5 V
- Maximum low input current of 1 µA
- Inputs are TTL-voltage compatible
- Schmitt-trigger inputs for improved noise immunity
Applications
- Uninterruptible Power Supplies (UPS)
- White goods
- Computer peripherals
- Printers
- AC servo drives
- Desktop computers
Q & A
- What is the operating voltage range of the SN74HCT14DR?
The operating voltage range is 4.5 V to 5.5 V.
- How many independent inverters does the SN74HCT14DR contain?
The device contains six independent inverters.
- What is the typical propagation delay time of the SN74HCT14DR at 5 V?
The typical propagation delay time is 18 ns at 5 V.
- What is the maximum output drive current of the SN74HCT14DR at 5 V?
The maximum output drive current is ±4 mA at 5 V.
- What is the maximum low input current of the SN74HCT14DR?
The maximum low input current is 1 µA.
- Is the SN74HCT14DR compatible with TTL voltage levels?
Yes, the inputs are TTL-voltage compatible.
- What is the operating temperature range of the SN74HCT14DR?
The operating temperature range is -40°C to 85°C.
- What package types are available for the SN74HCT14DR?
The device is available in SOIC (D), SSOP, TVSOP, PDIP, and TSSOP packages.
- How many pins does the SOIC package of the SN74HCT14DR have?
The SOIC package has 14 pins.
- What are some common applications of the SN74HCT14DR?
Common applications include UPS, white goods, computer peripherals, printers, AC servo drives, and desktop computers.
