TLC555CD
Low-power CMOS timer ICs in 8-pin SOIC for precision timing applications
Manufacturer： ['rochester', 'ti']
series introduction
# Introduction to the TLC555CD Product Series
## Overview
The TLC555CD is a highly versatile and widely used integrated circuit (IC) that belongs to the 555 timer family. Renowned for its reliability, flexibility, and ease of use, the TLC555CD has become a staple in the world of electronics, finding applications in a vast array of projects, from simple hobbyist circuits to complex industrial systems.
## Key Features
### 1. Compatibility and Low Power Consumption
- **CMOS Technology**: The TLC555CD is based on Complementary Metal - Oxide - Semiconductor (CMOS) technology. This offers several advantages over traditional bipolar 555 timers. CMOS technology results in extremely low power consumption, making it ideal for battery - powered applications where energy efficiency is crucial.
- **Wide Supply Voltage Range**: It can operate over a wide supply voltage range, typically from 2 V to 18 V. This flexibility allows it to be used in various power - supply scenarios, whether it's a low - voltage microcontroller - based system or a higher - voltage industrial control circuit.
### 2. High Input Impedance
- The high input impedance of the TLC555CD means that it draws very little current from the input sources. This property is beneficial as it minimizes the loading effect on the preceding circuits, ensuring accurate signal processing and reducing the need for additional buffering components in many cases.
### 3. Precise Timing Capabilities
- **Accurate Time Delays and Oscillation Frequencies**: The TLC555CD can be configured to generate precise time delays or oscillations. By simply adjusting the values of external resistors and capacitors, users can set the time intervals or frequencies according to their specific requirements. The timing accuracy is relatively high, making it suitable for applications where precise timing is essential, such as in clock generation circuits or time - critical control systems.
### 4. Output Drive Capability
- **Sufficient Current Sinking and Sourcing**: The output of the TLC555CD can sink and source a reasonable amount of current. It can typically drive loads such as LEDs, small relays, and other low - power devices directly. This eliminates the need for additional power - amplification stages in many simple applications, simplifying the circuit design.
## Functional Modes
### 1. Monostable Mode (One - Shot)
- In monostable mode, the TLC555CD acts as a one - shot timer. When a trigger pulse is applied to the appropriate input pin, the output goes high for a period of time determined by the values of an external resistor and capacitor. This mode is commonly used for applications such as pulse stretching, debouncing switches, and generating single - pulse events in response to an input signal.
### 2. Astable Mode (Oscillator)
- In astable mode, the TLC555CD functions as an oscillator, generating a continuous square - wave output. The frequency and duty cycle of the output waveform can be adjusted by changing the values of the external resistors and capacitors. This mode is widely used in applications such as LED flasher circuits, tone generation, and clock signal generation for digital circuits.
### 3. Bistable Mode (Flip - Flop)
- In bistable mode, the TLC555CD can be used as a flip - flop. The output state can be toggled between high and low by applying appropriate trigger signals to the input pins. This mode is useful for applications such as simple memory elements or for controlling the state of a circuit based on external input signals.
## Applications
### 1. Consumer Electronics
- **LED Lighting Effects**: The TLC555CD can be used to create various LED lighting effects, such as blinking, fading, and chasing
Images for reference
8-SOIC
8-SOIC
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