Overview
The SN74HCT32NG4 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 TTL (Transistor-Transistor Logic) voltage compatible, making it suitable for a wide range of digital logic applications.
Key Specifications
| Parameter | Unit | Min | Max | |
|---|---|---|---|---|
| VCC (Supply Voltage) | V | 4.5 | 5 | 5.5 |
| VIH (High-level Input Voltage) | V | 2 | - | - |
| VIL (Low-level Input Voltage) | V | 0.8 | - | - |
| VOH (High-level Output Voltage) | V | 4.4 | 4.4 | 4.499 |
| VOL (Low-level Output Voltage) | V | 0.1 | 0.1 | 0.4 |
| ICC (Supply Current) | μA | 2 | 20 | 40 |
| tpd (Propagation Delay) | ns | 13 | 22 | 32 |
| tt (Transition Time) | ns | 8 | 14 | 20 |
| TA (Operating Free-Air Temperature) | °C | -40 | - | 85 |
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 max ICC
- 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 SN74HCT32NG4 is suitable for various digital logic applications, including:
- User interfaces to monitor error signals
- Combining active-low enable signals
- General-purpose logic circuits requiring OR gate functionality
- Systems that require TTL-compatible inputs and outputs
Q & A
- What is the primary function of the SN74HCT32NG4?
The SN74HCT32NG4 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 SN74HCT32NG4?
The operating voltage range is from 4.5 V to 5.5 V.
- How many LSTTL loads can the outputs of the SN74HCT32NG4 drive?
The outputs can drive up to 10 LSTTL loads.
- What is the typical propagation delay of the SN74HCT32NG4?
The typical propagation delay is 13 ns.
- What is the maximum output drive current at 5 V?
The maximum output drive current at 5 V is ±4 mA.
- Are the inputs of the SN74HCT32NG4 TTL-voltage compatible?
- What is the maximum supply current (ICC) of the SN74HCT32NG4?
The maximum supply current (ICC) is 40 µA.
- What are the typical operating temperatures for the SN74HCT32NG4?
The operating free-air temperature range is from -40°C to 85°C.
- What are some common applications of the SN74HCT32NG4?
Common applications include user interfaces to monitor error signals, combining active-low enable signals, and general-purpose logic circuits requiring OR gate functionality.
- What types of packages are available for the SN74HCT32NG4?
The device is available in various packages including SOIC, SSOP, PDIP, SOP, and TSSOP.
