SN74LS348N

Product Overview

Category

SN74LS348N belongs to the category of integrated circuits (ICs).

Use

This IC is commonly used in digital electronics for various applications such as data encoding and decoding.

Characteristics

• Low-power Schottky TTL technology
• 8-line to 3-line priority encoder
• High-speed operation
• Wide operating voltage range: 4.75V to 5.25V
• Low power consumption
• DIP (Dual In-line Package) package type

Package and Quantity

SN74LS348N is available in a 16-pin DIP package. It is typically sold in packs of 10 or more.

Specifications

• Supply Voltage: 4.75V to 5.25V
• Input Voltage: 0V to VCC
• Operating Temperature Range: -40°C to +85°C
• Output Current: ±4mA
• Propagation Delay Time: 15ns (max)
• Power Dissipation: 500mW (max)

Pin Configuration

The pin configuration of SN74LS348N is as follows:

``` __ __ 1 |1 __/ 16| VCC 2 |2 15| A0 3 |3 14| A1 4 |4 13| A2 5 |5 SN 12| E 6 |6 74 11| Y2 7 |7 LS 10| Y1 8 |8 348 9| Y0

---

```

Functional Features

SN74LS348N is an 8-line to 3-line priority encoder. It encodes eight input lines into a three-bit binary code based on the priority of the inputs. The highest priority input is encoded first.

Advantages and Disadvantages

Advantages

• High-speed operation allows for quick encoding of input data.
• Low power consumption makes it suitable for battery-powered devices.
• Wide operating voltage range ensures compatibility with various systems.

Disadvantages

• Limited number of output lines may restrict its use in certain applications requiring more output options.
• Propagation delay time may affect real-time applications that require immediate response.

Working Principles

SN74LS348N works by assigning priority to the input lines based on their order. The highest priority input line with a logic high signal is encoded first, followed by the next highest priority line, and so on. The encoded output represents the binary code corresponding to the active input line.

Detailed Application Field Plans

SN74LS348N can be used in various applications, including: 1. Data encoding in microcontrollers and digital signal processors. 2. Priority-based interrupt handling in computer systems. 3. Address encoding in memory systems. 4. Keypad scanning in input devices. 5. Multiplexing and demultiplexing of data signals.

Alternative Models

Some alternative models to SN74LS348N include: - 74HC148: 8-line to 3-line priority encoder with CMOS technology. - CD4532: 8-line to 3-line priority encoder with low-power Schottky technology. - SN54LS148: 8-line to 3-line priority encoder with TTL technology.

These alternative models offer similar functionality but may have different specifications and package types.

In conclusion, SN74LS348N is a versatile integrated circuit used for data encoding and decoding purposes. Its high-speed operation, low power consumption, and wide operating voltage range make it suitable for various digital electronics applications. However, its limited number of output lines and propagation delay time should be considered when selecting this IC for specific projects.