Overview
The SN74LS148NSR is an integrated circuit produced by Texas Instruments, categorized under the 74LS series. This component is an 8-to-3 priority encoder, designed to encode eight input lines into a three-bit binary output. It is widely used in digital systems where priority encoding is necessary, such as in interrupt handling and data processing systems.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Manufacturer | Texas Instruments | |
| Part Number | SN74LS148NSR | |
| Category | Integrated Circuits (ICs) - Logic - Signal Switches, Multiplexers, Decoders | |
| Package | 16-DIP (0.300", 7.62mm) | |
| Series | 74LS | |
| Type | Priority Encoder | |
| Circuit | 1 x 8:3 | |
| Independent Circuits | 1 | |
| Current - Output High, Low | 400µA, 8mA | |
| Voltage Supply Source | Single Supply | |
| Voltage - Supply | 4.75 V ~ 5.25 V | |
| Operating Temperature | 0°C ~ 70°C | |
| Mounting Type | Through Hole |
Key Features
- Priority Encoding: The SN74LS148NSR encodes eight input lines into a three-bit binary output, with priority given to the highest input number.
- Single Supply Operation: Operates on a single supply voltage between 4.75 V and 5.25 V.
- High Current Drive: Capable of driving high current loads with output currents up to 8 mA.
- Wide Operating Temperature Range: Functional over a temperature range of 0°C to 70°C.
- Through-Hole Packaging: Available in a 16-DIP package, suitable for through-hole mounting.
Applications
- Interrupt Handling Systems: Used in systems where multiple interrupt sources need to be prioritized.
- Data Processing Systems: Utilized in data processing applications requiring priority encoding of multiple input signals.
- Industrial Control Systems: Employed in industrial control systems for encoding and prioritizing various input signals.
- Embedded Systems: Suitable for use in embedded systems requiring efficient priority encoding.
Q & A
- What is the function of the SN74LS148NSR?
The SN74LS148NSR is an 8-to-3 priority encoder, which encodes eight input lines into a three-bit binary output with priority given to the highest input number.
- What is the operating voltage range of the SN74LS148NSR?
The operating voltage range is between 4.75 V and 5.25 V.
- What is the package type of the SN74LS148NSR?
The component is available in a 16-DIP (0.300", 7.62mm) package.
- What is the operating temperature range of the SN74LS148NSR?
The operating temperature range is from 0°C to 70°C.
- What are the typical applications of the SN74LS148NSR?
Typical applications include interrupt handling systems, data processing systems, industrial control systems, and embedded systems.
- How many independent circuits does the SN74LS148NSR contain?
The SN74LS148NSR contains one independent circuit.
- What is the maximum output current of the SN74LS148NSR?
The maximum output current is 8 mA.
- Is the SN74LS148NSR suitable for through-hole mounting?
- Where can I find detailed specifications for the SN74LS148NSR?
Detailed specifications can be found in the datasheet available on Texas Instruments' official website or through distributors like Heisener and LCSC.
- What is the typical use case for priority encoding in digital systems?
