Overview
The SN74HCT02DT is a quadruple 2-input positive-NOR gate integrated circuit produced by Texas Instruments. This device is part of the 74HCT series, which is compatible with TTL (Transistor-Transistor Logic) voltage levels. It contains four independent 2-input NOR gates, each performing the Boolean function Y = A + B in positive logic.
The SN74HCT02DT is available in a 14-pin SOIC (Small Outline Integrated Circuit) package, making it suitable for a variety of digital logic applications where low power consumption and high speed are required.
Key Specifications
| Parameter | Min | Nom | Max | Unit |
|---|---|---|---|---|
| VCC Supply Voltage | 4.5 | 5 | 5.5 | V |
| VIH High-Level Input Voltage | 2 | V | ||
| VIL Low-Level Input Voltage | 0.8 | V | ||
| VOH High-Level Output Voltage (IOH = -20 μA) | 4.4 | 4.499 | V | |
| VOL Low-Level Output Voltage (IOL = 20 μA) | 0.001 | 0.1 | V | |
| ICC Supply Current (VI = VCC or 0, IO = 0) | 2 | 40 | μA | |
| tpd Propagation Delay (A or B to Y) | 10 | 20 | ns | |
| tt Transition Time (Y) | 9 | 15 | ns | |
| TJ Junction Temperature | 150 | °C | ||
| Tstg Storage Temperature | -65 | 150 | °C |
Key Features
- Operating voltage range of 4.5V to 5.5V
- Outputs can drive up to 10 LSTTL loads
- Low power consumption, 20-µA max ICC
- Typical propagation delay of 10ns
- ±4-mA output drive at 5V
- Low input current of 1µA max
- Inputs are TTL-Voltage compatible
Applications
The SN74HCT02DT is suitable for various digital logic applications, including:
- Digital logic circuits requiring NOR gate functionality
- Low-power digital systems
- TTL-compatible circuits
- Embedded systems and microcontrollers
- Industrial control systems
Q & A
- What is the function of the SN74HCT02DT?
The SN74HCT02DT contains four independent 2-input NOR gates, performing the Boolean function Y = A + B in positive logic.
- What is the operating voltage range of the SN74HCT02DT?
The operating voltage range is 4.5V to 5.5V.
- How many LSTTL loads can the outputs of the SN74HCT02DT drive?
The outputs can drive up to 10 LSTTL loads.
- What is the typical propagation delay of the SN74HCT02DT?
The typical propagation delay is 10ns.
- What is the maximum output drive current at 5V?
The maximum output drive current at 5V is ±4 mA.
- What is the maximum input current?
The maximum input current is 1µA.
- Is the SN74HCT02DT compatible with TTL voltage levels?
- What is the junction temperature range for the SN74HCT02DT?
The junction temperature range is up to 150°C.
- What is the storage temperature range for the SN74HCT02DT?
The storage temperature range is -65°C to 150°C.
- In what package types is the SN74HCT02DT available?
The SN74HCT02DT is available in SOIC, PDIP, SO, and TSSOP packages.
