SN74LS697DW

Product Overview

Category

SN74LS697DW belongs to the category of integrated circuits (ICs).

Use

This IC is commonly used in digital electronics for various applications such as counters, shift registers, and frequency dividers.

Characteristics

• High-speed operation
• Low power consumption
• Wide operating voltage range
• Compatibility with TTL logic levels
• DIP (Dual In-line Package) package type

Package and Quantity

SN74LS697DW is available in a 16-pin plastic dual in-line package. It is typically sold in reels or tubes containing multiple units.

Specifications

Electrical Characteristics

• Supply Voltage: 4.75V to 5.25V
• Input Voltage: 0V to Vcc
• Operating Temperature Range: -40°C to +85°C
• Output Current: ±8mA

Timing Characteristics

• Maximum Clock Frequency: 25MHz
• Minimum Pulse Width: 20ns
• Propagation Delay Time: 15ns

Pin Configuration

The pin configuration of SN74LS697DW is as follows:

``` __ __ |1 \/ 16| |2 15| |3 14| |4 13| |5 12| |6 11| |7 10| |8 9|

---

```

Functional Features

SN74LS697DW offers the following functional features:

• 4-bit parallel input
• Synchronous operation
• Cascadable for larger word sizes
• Carry output for cascading multiple devices
• Enable input for controlling data transfer
• Reset input for clearing the counter

Advantages and Disadvantages

Advantages

• High-speed operation allows for efficient data processing.
• Low power consumption makes it suitable for battery-powered devices.
• Wide operating voltage range provides flexibility in various applications.
• Compatibility with TTL logic levels ensures easy integration with existing systems.

Disadvantages

• Limited word size (4 bits) may not be sufficient for certain applications requiring larger counters.
• DIP package type may not be suitable for space-constrained designs.

Working Principles

SN74LS697DW operates as a synchronous 4-bit binary counter. It counts up or down based on the clock input and control signals. The parallel inputs determine the initial count value, while the carry output allows cascading multiple counters to achieve larger word sizes. The enable input controls the transfer of data, and the reset input clears the counter to its initial state.

Detailed Application Field Plans

SN74LS697DW finds applications in various fields, including:

1. Digital frequency dividers
2. Industrial automation
3. Communication systems
4. Test and measurement equipment
5. Automotive electronics

Alternative Models

The following alternative models can be considered as replacements for SN74LS697DW:

1. CD40193BE
2. MC14516BCL
3. 74HC393D

These models offer similar functionality and can be used as drop-in replacements in most applications.

In conclusion, SN74LS697DW is a versatile integrated circuit commonly used in digital electronics. Its high-speed operation, low power consumption, and compatibility with TTL logic levels make it suitable for a wide range of applications. However, its limited word size and DIP package type should be considered when selecting alternatives for specific requirements.