Overview
The SN74LS21NSR is a logic gate integrated circuit produced by Texas Instruments. This device contains two independent 4-input AND gates, making it suitable for various digital logic applications. The SN74LS21NSR is characterized for operation from 0°C to 70°C, ensuring reliable performance within a standard commercial temperature range.
Key Specifications
| Parameter | Value |
|---|---|
| Manufacturer | Texas Instruments |
| Logic Type | AND Gate |
| Number of Inputs | 4 |
| Number of Circuits | 2 |
| Voltage - Supply | 4.75V ~ 5.25V |
| Logic Level - Low | 0.8V |
| Logic Level - High | 2V |
| Operating Temperature | 0°C ~ 70°C |
| Package / Case | 14-SOIC (0.209", 5.30mm Width) |
| Mounting Type | Surface Mount |
| Current - Output High, Low | 400µA, 8mA |
| Max Propagation Delay @ V, Max CL | 20ns @ 5V, 15pF |
Key Features
- Contains two independent 4-input AND gates.
- Available in various package options including plastic 'Small Outline' packages, ceramic chip carriers, flat packages, and plastic and ceramic DIPs.
- Dependable Texas Instruments quality and reliability.
- Surface mount technology for easy integration into modern circuit designs.
- Operates within a standard commercial temperature range of 0°C to 70°C.
Applications
The SN74LS21NSR is suitable for a wide range of digital logic applications, including but not limited to:
- Digital logic circuits requiring AND gate functionality.
- Embedded systems and IoT devices where reliable logic operations are necessary.
- Industrial control systems and automation.
- Consumer electronics and appliances requiring digital logic functions.
Q & A
- What is the SN74LS21NSR?
The SN74LS21NSR is a logic gate integrated circuit produced by Texas Instruments, containing two independent 4-input AND gates.
- What is the operating temperature range of the SN74LS21NSR?
The SN74LS21NSR operates from 0°C to 70°C.
- What are the supply voltage requirements for the SN74LS21NSR?
The supply voltage for the SN74LS21NSR is between 4.75V and 5.25V.
- What is the package type of the SN74LS21NSR?
The SN74LS21NSR is available in a 14-SOIC (Small Outline Integrated Circuit) package.
- How many inputs does each AND gate in the SN74LS21NSR have?
Each AND gate in the SN74LS21NSR has 4 inputs.
- What is the maximum propagation delay of the SN74LS21NSR?
The maximum propagation delay is 20ns at 5V with a 15pF load capacitance.
- What are the current output levels for the SN74LS21NSR?
The current output levels are 400µA for high and 8mA for low.
- Is the SN74LS21NSR suitable for surface mounting?
- What are some common applications of the SN74LS21NSR?
- Where can I purchase the SN74LS21NSR?
The SN74LS21NSR can be purchased from various electronic component distributors such as Digi-Key, Mouser, and X-ON Electronics.
