TLC556CN
Dual CMOS timer ICs in 14-pin PDIP for versatile timing applications
Manufacturer： ['rochester', 'analog-devices', 'ti']
series introduction
# Introduction to the TLC556CN Product Series
## Overview
The TLC556CN is a highly versatile and widely used integrated circuit (IC) that belongs to the timer family. It is a dual version of the popular 555 timer, offering enhanced functionality and flexibility in a single package. This product series has gained significant popularity in the electronics industry due to its reliability, ease of use, and cost - effectiveness.
## Key Features
### Dual Timer Functionality
One of the most prominent features of the TLC556CN is its dual timer design. It contains two independent 555 - type timers within a single 14 - pin package. This allows designers to implement multiple timing functions in a compact space, reducing the need for multiple individual 555 timers on a printed circuit board (PCB). For example, in a complex electronic system that requires both a short - duration timing pulse and a longer - duration delay, the two timers in the TLC556CN can be configured separately to meet these different requirements.
### Wide Supply Voltage Range
The TLC556CN can operate over a wide range of supply voltages, typically from 2 V to 18 V. This wide voltage range makes it suitable for a variety of applications, whether powered by a low - voltage battery in a portable device or a higher - voltage power supply in an industrial setting. For instance, in a battery - powered sensor node, the TLC556CN can operate efficiently with a 3.3 V or 5 V battery, while in a laboratory test setup, it can be powered by a 12 V or 15 V power supply.
### High Output Current Capability
The output of the TLC556CN can source and sink relatively high currents. It can typically source up to 200 mA and sink up to 200 mA. This high - current capability allows the IC to directly drive external loads such as LEDs, small relays, and low - power motors without the need for additional buffer circuits in many cases. For example, it can be used to directly drive a small indicator LED or actuate a low - power electromagnetic relay for simple switching applications.
### Adjustable Timing
The timing intervals of the TLC556CN can be easily adjusted using external resistors and capacitors. By changing the values of these external components, designers can precisely control the time periods of the output signals, such as the on - time and off - time of a square wave or the duration of a single - shot pulse. This adjustability makes it suitable for a wide range of timing applications, from simple time - delay circuits to complex frequency - generation circuits.
### Temperature Stability
The TLC556CN exhibits good temperature stability, ensuring reliable operation over a wide temperature range. It can typically operate in temperatures ranging from 0°C to 70°C, which is suitable for most general - purpose electronic applications. This temperature stability is crucial in applications where the ambient temperature may vary, such as in automotive electronics or outdoor monitoring systems.
## Applications
### Pulse Generation
The TLC556CN is commonly used for pulse generation in various electronic systems. It can generate square - wave pulses with adjustable frequencies and duty cycles. For example, in a digital communication system, it can be used to generate clock pulses for synchronizing data transfer. In a test and measurement instrument, it can produce calibration pulses for signal verification.
### Time - Delay Circuits
Time - delay circuits are another important application of the TLC556CN. It can be configured to provide a precise time delay between an input event and an output action. For instance, in a security system, it can be used to delay the activation of an alarm after a sensor is triggered, allowing for a short grace period. In a lighting control system, it can be used to turn off a
Images for reference
14-DIP
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