Overview
The SN74HCT32N is a quadruple 2-input positive-OR gate integrated circuit produced by Texas Instruments. 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 HCT (High-Speed CMOS) family, which is compatible with TTL (Transistor-Transistor Logic) voltage levels, making it versatile for various digital logic applications.
Key Specifications
| Parameter | Min | Max | Unit | |
|---|---|---|---|---|
| Supply Voltage (VCC) | 4.5 | 5 | 5.5 | V |
| High-Level Input Voltage (VIH) | 2 | V | ||
| Low-Level Input Voltage (VIL) | 0.8 | V | ||
| Operating Free-Air Temperature (TA) | -40 | 85 | °C | |
| Propagation Delay (tpd) | 13 | 22 | 32 | ns |
| Transition Time (tt) | 8 | 14 | 20 | ns |
| Output Drive at 5 V (IOH/IOL) | ±4 mA | mA | ||
| Input Current (II) | ±0.1 | ±1000 | nA | |
| Supply Current (ICC) | 2 | 20 | μA | |
| Input Capacitance (Ci) | 3 | 10 | pF |
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
- ±4-mA output drive at 5 V
- Low input current of 1 μA max
- Inputs are TTL-Voltage compatible
Applications
The SN74HCT32N is suitable for a variety of digital logic applications, including:
- User interfaces where fewer inputs are needed to monitor error signals
- Combining active-low enable signals
- General-purpose logic circuits requiring OR gate functionality
- Systems that require compatibility with TTL voltage levels
Q & A
- What is the function of the SN74HCT32N?
The SN74HCT32N 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 SN74HCT32N?
The operating voltage range is 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 of the SN74HCT32N?
The typical propagation delay is 13 ns. - What is the maximum supply current of the SN74HCT32N?
The maximum supply current is 20 μA. - Are the inputs TTL-Voltage compatible?
Yes, the inputs are TTL-Voltage compatible. - What is the operating temperature range of the SN74HCT32N?
The operating temperature range is -40°C to 85°C. - How many OR gates are included in the SN74HCT32N?
The device includes four independent 2-input OR gates. - What are some common applications of the SN74HCT32N?
Common applications include user interfaces, combining active-low enable signals, and general-purpose logic circuits. - What package types are available for the SN74HCT32N?
Available packages include PDIP (N), SOIC (D), SSOP (DB), SOP (NS), and TSSOP (PW).
