NE555DRE4
Precision timing ICs in compact 8-pin SOIC packages
Manufacturer： ti
series introduction
# NE555DRE4 Product Series Introduction
## 1. Overview
The NE555DRE4 is a highly versatile and widely used integrated circuit (IC) that belongs to the 555 timer family. Renowned for its simplicity, reliability, and flexibility, this product series has become a staple in the electronics industry for a vast array of applications. It is available in a small outline integrated circuit (SOIC) package, specifically the DRE4 variant, which offers ease of handling and compatibility with modern printed circuit board (PCB) designs.
## 2. Key Features
### 2.1 Wide Supply Voltage Range
The NE555DRE4 can operate over a broad supply voltage range, typically from 4.5V to 16V for the standard version. This wide range allows it to be used in various power supply configurations, making it suitable for both battery - powered and mains - powered applications. For example, in a battery - operated portable device, a lower supply voltage can be used to conserve power, while in industrial applications, a higher voltage can be applied for more robust operation.
### 2.2 High Output Current Capability
It can source and sink relatively high output currents. The output can typically source up to 200mA and sink up to 200mA. This high current - driving ability enables the NE555DRE4 to directly drive external components such as LEDs, relays, and small motors without the need for additional buffer circuits in many cases. For instance, it can easily drive a small relay to control the switching of larger electrical loads.
### 2.3 Adjustable Timing
One of the most significant features of the NE555DRE4 is its ability to generate accurate and adjustable time delays. By using external resistors and capacitors, the user can precisely control the timing intervals of the output signals. This makes it ideal for applications such as pulse generation, frequency division, and time - based control systems. For example, in a traffic light control system, the NE555DRE4 can be configured to generate the appropriate time intervals for the different phases of the traffic lights.
### 2.4 Three Operating Modes
The NE555DRE4 supports three distinct operating modes: monostable (one - shot), astable (free - running), and bistable (flip - flop).
- **Monostable Mode**: In this mode, the NE555DRE4 generates a single output pulse of a fixed duration in response to a trigger input. This is useful for applications such as debouncing switches, where a clean, single - pulse output is required to avoid false triggering.
- **Astable Mode**: The astable mode allows the NE555DRE4 to generate a continuous square - wave output. The frequency and duty cycle of the square wave can be adjusted by changing the values of the external resistors and capacitors. This mode is commonly used in oscillator circuits, such as in radio frequency (RF) transmitters and signal generators.
- **Bistable Mode**: In bistable mode, the output of the NE555DRE4 can be set or reset using appropriate input signals. This mode is similar to a flip - flop and can be used for applications such as latching circuits and simple memory elements.
### 2.5 Low Power Consumption
Despite its high performance, the NE555DRE4 has relatively low power consumption, especially in standby or low - activity states. This makes it suitable for battery - powered and energy - efficient applications, where power conservation is crucial.
## 3. Technical Specifications
### 3.1 Pin Configuration
The NE555DRE4 has an 8 - pin SOIC package. The pins are as follows:
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Images for reference
8-SOIC
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