SN74LS697NSRE4

Product Overview

• Category: Integrated Circuit
• Use: Counter/Shift Register
• Characteristics: TTL Logic, 4-Bit Binary Counter, Serial or Parallel Data Entry
• Package: SOIC (Small Outline Integrated Circuit)
• Essence: High-performance digital logic device for counting and shifting operations
• Packaging/Quantity: Tape and Reel, 2500 units per reel

Specifications

• Supply Voltage Range: 4.75V to 5.25V
• Operating Temperature Range: -40°C to +85°C
• Logic Family: LS-TTL
• Number of Bits: 4
• Counting Modes: Up, Down, Asynchronous Load
• Clock Frequency: 30MHz (max)
• Output Drive Capability: 10 LSTTL Loads
• Propagation Delay: 15ns (typical)

Detailed Pin Configuration

The SN74LS697NSRE4 has a total of 16 pins. The pin configuration is as follows:

1. CLR (Clear) - Active Low Clear Input
2. CLK (Clock) - Clock Input
3. A (Data Input A) - Serial or Parallel Data Input A
4. B (Data Input B) - Serial or Parallel Data Input B
5. C (Data Input C) - Serial or Parallel Data Input C
6. D (Data Input D) - Serial or Parallel Data Input D
7. QA (Output A) - Output A
8. QB (Output B) - Output B
9. QC (Output C) - Output C
10. QD (Output D) - Output D
11. GND (Ground) - Ground Connection
12. VCC (Supply Voltage) - Positive Power Supply
13. CE (Count Enable) - Count Enable Input
14. LD (Load) - Asynchronous Parallel Load Input
15. UP/DN (Up/Down) - Up/Down Count Control Input
16. RC (Ripple Clock) - Ripple Clock Output

Functional Features

• 4-bit binary counter with parallel or serial data entry
• Can count up or down based on the UP/DN control input
• Asynchronous parallel load capability for easy initialization
• Clear input to reset the counter to zero
• Ripple clock output for cascading multiple counters

Advantages and Disadvantages

Advantages: - High-performance TTL logic for reliable operation - Versatile counting modes and data entry options - Wide operating temperature range for various applications - Compact SOIC package for space-saving designs

Disadvantages: - Limited output drive capability compared to some other ICs - Propagation delay may affect timing-sensitive applications

Working Principles

The SN74LS697NSRE4 is a synchronous counter/shift register that operates based on TTL logic. It can count up or down depending on the UP/DN control input. The counter can be loaded asynchronously using the LD input, allowing for easy initialization. The CLK input serves as the clock signal for counting or shifting operations.

Detailed Application Field Plans

The SN74LS697NSRE4 is commonly used in various applications, including:

1. Digital frequency dividers
2. Industrial automation systems
3. Data communication equipment
4. Test and measurement instruments
5. Automotive electronics
6. Consumer electronics

Detailed and Complete Alternative Models

1. CD40193BE: 4-Bit Binary Up/Down Counter
2. MC14516B: 4-Bit Binary Counter with Asynchronous Clear
3. 74HC595: 8-Bit Serial-In, Parallel-Out Shift Register
4. CD4021BE: 8-Bit Serial-In, Parallel-Out Shift Register
5. SN74HC164N: 8-Bit Serial-In, Parallel-Out Shift Register

These alternative models offer similar functionality and can be used as substitutes for the SN74LS697NSRE4 in various applications.

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