TLC556CDR
Dual CMOS timer ICs in 14-pin SOIC for versatile timing applications
Manufacturer： ti
series introduction
# TLC556CDR Product Series Introduction
## 1. Overview
The TLC556CDR is a highly versatile and widely - used integrated circuit product series. It belongs to the category of timer chips, which are essential components in a vast array of electronic systems. This dual timer device combines the functionality of two 555 - type timers in a single package, offering enhanced efficiency and space - saving benefits for circuit designers.
## 2. Key Features
### 2.1 Dual Timer Functionality
One of the most significant features of the TLC556CDR is its dual timer design. This means that within a single integrated circuit, there are two independent 555 - style timers. Each timer can operate in different modes such as monostable (one - shot) and astable (free - running) modes. This dual - timer configuration allows for more complex timing and control functions to be implemented in a compact space, reducing the need for multiple single - timer chips and simplifying the overall circuit layout.
### 2.2 Wide Supply Voltage Range
The TLC556CDR can operate over a relatively wide supply voltage range, typically from 2 V to 18 V. This wide range makes it suitable for a variety of power sources, including battery - powered applications where low - voltage operation is crucial, as well as systems with higher - voltage power supplies. It provides flexibility in different electronic designs, allowing it to be integrated into various types of projects without the need for complex voltage - conversion circuits.
### 2.3 High Output Current Capability
The output stages of the TLC556CDR are designed to handle relatively high currents. The output can source and sink up to 200 mA, which is sufficient to drive a wide range of loads directly. This includes LEDs, relays, small motors, and other low - power actuators. The ability to drive these loads directly simplifies the circuit design by eliminating the need for additional buffer or amplifier circuits in many cases.
### 2.4 Low Power Consumption
In addition to its high - current output capability, the TLC556CDR is also known for its relatively low power consumption. This is especially important in battery - powered or energy - efficient applications. The low power consumption helps to extend the battery life of portable devices and reduces the overall power requirements of the system, making it an environmentally friendly and cost - effective choice.
### 2.5 Temperature Stability
The TLC556CDR exhibits good temperature stability. It can operate reliably over a wide temperature range, typically from - 40°C to 85°C. This makes it suitable for use in various environmental conditions, including industrial, automotive, and consumer applications where the temperature may vary significantly. The temperature stability ensures consistent performance of the timers, reducing the risk of timing errors due to temperature fluctuations.
## 3. Applications
### 3.1 Pulse Generation
In monostable mode, the TLC556CDR can be used to generate single pulses of a specific width. This is useful in applications such as triggering other circuits, generating synchronization pulses, or creating one - time events. For example, in a security system, a monostable pulse can be used to trigger an alarm for a specific duration when a sensor is activated.
### 3.2 Oscillator Circuits
When configured in astable mode, the TLC556CDR acts as an oscillator, generating a continuous train of pulses. These oscillator circuits are commonly used in applications such as clock generation, frequency synthesis, and signal modulation. In a radio - frequency (RF) transmitter, an astable oscillator can be used to generate the carrier frequency.
### 3.3 Timing and Control
The dual - timer functionality of the TLC556CDR makes it ideal for complex timing and control
Images for reference
14-SOIC
14-TSSOPa
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