SN74LV123APWR

Product Overview

• Category: Integrated Circuit (IC)
• Use: Multivibrator
• Characteristics: Low-voltage, dual retriggerable monostable multivibrator
• Package: TSSOP (Thin Shrink Small Outline Package)
• Essence: Reliable timing solution for various applications
• Packaging/Quantity: Tape and Reel, 2500 units per reel

Specifications

• Supply Voltage Range: 1.65V to 5.5V
• Operating Temperature Range: -40°C to +85°C
• Propagation Delay Time: 20 ns
• Trigger Pulse Width Range: 30 ns to 1000 ns
• Trigger Input Current: ±1 μA
• Output Drive Capability: ±8 mA

Detailed Pin Configuration

The SN74LV123APWR has a total of 16 pins, which are assigned as follows:

1. CLR (Clear) - Active LOW clear input
2. D (Data) - Data input
3. GND (Ground) - Ground reference
4. Q (Output) - Output
5. VCC (Positive Power Supply) - Positive power supply voltage
6. A (Trigger) - Trigger input
7. B (Trigger) - Trigger input
8. RCext (External Resistor/Capacitor) - External resistor/capacitor connection
9. RCext (External Resistor/Capacitor) - External resistor/capacitor connection
10. Q (Output) - Output
11. VCC (Positive Power Supply) - Positive power supply voltage
12. GND (Ground) - Ground reference
13. Q (Output) - Output
14. Rext (External Resistor) - External resistor connection
15. Cext (External Capacitor) - External capacitor connection
16. Cext (External Capacitor) - External capacitor connection

Functional Features

• Dual retriggerable monostable multivibrator
• Low-voltage operation suitable for battery-powered devices
• Wide supply voltage range allows compatibility with various systems
• Clear input for immediate termination of output pulse
• Trigger inputs for controlling the timing of the output pulse
• Output can drive standard TTL/CMOS loads

Advantages and Disadvantages

Advantages: - Reliable timing solution for a wide range of applications - Low-voltage operation extends battery life - Retriggerable feature allows flexibility in pulse generation - Compact TSSOP package saves board space

Disadvantages: - Limited output drive capability may not be suitable for high-current applications - Propagation delay time may affect timing accuracy in certain applications

Working Principles

The SN74LV123APWR is a dual retriggerable monostable multivibrator. It generates a single output pulse of a specific duration when triggered by an external signal. The timing of the output pulse is determined by the values of the external resistor and capacitor connected to the RCext pins. The device can be retriggered during the output pulse, allowing for flexible pulse generation.

Detailed Application Field Plans

The SN74LV123APWR finds applications in various fields, including:

1. Timing circuits: Used to generate precise time delays in electronic systems.
2. Communication systems: Provides accurate timing for data transmission and synchronization.
3. Industrial automation: Controls timing sequences in manufacturing processes.
4. Automotive electronics: Enables precise timing in automotive control systems.
5. Consumer electronics: Used in devices requiring accurate timing, such as cameras and audio equipment.

Detailed and Complete Alternative Models

1. CD74HC123E - High-speed CMOS dual retriggerable monostable multivibrator
2. MC14538B - Dual precision monostable multivibrator with independent trigger inputs
3. 74HC123D - Dual retriggerable monostable multivibrator with Schmitt-trigger inputs

These alternative models offer similar functionality and can be considered as substitutes for the SN74LV123APWR in various applications.

Word count: 507 words