Overview
The SN74HCT32NS, produced by Texas Instruments, is a quadruple 2-input positive-OR gate integrated circuit. This device contains four independent 2-input OR gates, each performing the Boolean function Y = A + B in positive logic. It is part of the 74HCT series, known for its compatibility with TTL (Transistor-Transistor Logic) voltage levels and low power consumption.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Operating Voltage Range | 4.5 to 5.5 | V |
| Input Voltage Range | 0 to VCC | V |
| High-Level Input Voltage | 2 | V |
| Low-Level Input Voltage | 0.8 | V |
| Output Voltage Range | 0 to VCC | V |
| Output Drive at 5 V | ±4 mA | mA |
| Input Current | 1 µA (max) | µA |
| Supply Current | 20 µA (max) | µA |
| Propagation Delay at 5 V | 13 ns (typ) | ns |
| Operating Temperature Range | –40 to 85 | °C |
| Package Type | 14-SO (Small Outline) | |
| Package Size | 10.20 mm × 5.30 mm | mm |
Key Features
- Operating voltage range of 4.5 V to 5.5 V
- Outputs can drive up to 10 LSTTL loads
- Low power consumption, with a maximum supply current of 20 µA
- Typical propagation delay of 13 ns at 5 V
- ±4 mA output drive at 5 V
- Low input current of 1 µA maximum
- Inputs are TTL-voltage compatible
Applications
The SN74HCT32NS is suitable for a variety of digital logic applications, including:
- User interfaces where multiple inputs need to be monitored for error signals
- Combining active-low enable signals in digital circuits
- General-purpose logic circuits requiring OR gate functionality
Q & A
- What is the primary function of the SN74HCT32NS? The SN74HCT32NS contains four independent 2-input OR gates, each performing the Boolean function Y = A + B in positive logic.
- What is the operating voltage range of the SN74HCT32NS? The operating voltage range is from 4.5 V to 5.5 V.
- How many LSTTL loads can the outputs drive? The outputs can drive up to 10 LSTTL loads.
- What is the typical propagation delay at 5 V? The typical propagation delay at 5 V is 13 ns.
- What is the maximum supply current? The maximum supply current is 20 µA.
- What is the input current range? The input current is a maximum of 1 µA.
- What are the compatible input voltage levels? The inputs are TTL-voltage compatible.
- What is the operating temperature range? The operating temperature range is from –40°C to 85°C.
- What package types are available for the SN74HCT32NS? The SN74HCT32NS is available in a 14-SO (Small Outline) package.
- What are some common applications of the SN74HCT32NS? Common applications include monitoring error signals, combining active-low enable signals, and general-purpose logic circuits.
