CD4049 Buffer and Converter IC: Pinout, Equivalent and Datasheet

The CD4049 Hex Buffer Converter (NOT Gate) IC is a CMOS logic-based inverter buffer IC consisting of 6 individual NOT gates present inside.  

The NOT gate IC is intended for use as CMOS to DTL or TTL converters and can drive up to 2 DTL or TTL devices at a time. We can use it in high voltage applications as it has a wide range of operating voltage from 3V to 18V. 

As it is an inverter IC and the function of an inverter is to convert the logic level HIGH to LOW and LOW to HIGH, therefore it is used in logic level conversions. More than 18V can damage the IC but the input voltage signal value can be greater than supply voltage especially in conversion of logic levels.

Symbol

Footprint

3D Model

●Operating Voltage: 3V - 18V DC

●Current consumption: 50mA(Maximum)

●High Sink Current for Driving 2 TTL Loads

●Maximum low-level output Voltage: 0.5V at 5V Vcc

●Minimum high-level output voltage: 4.95 at 5V Vcc

●It is available in 16 pin packages of PDIP, SOIC, TSSOP, SO.

You can use this IC for making simple clock pulse generators and oscillators. CD4049 IC can be used in all those applications whose operation depends on two states 0 or 1 for example in simple LED torch, automatic streetlights, etc. Simple toggling circuits, voltage multiplier circuit, and a square wave oscillator circuit can be designed using this IC. It can also be helpful in inverting the output.

The operation of this IC is simple as it simply inverts the output.

▲HEF4049B

▲74HCT04 Hex Inverter IC

▲74LS14 Schmitt trigger hex inverter IC

▲CD4050B

●Used in CMOS to DTL or TTL Hex Converters

●Used in CMOS Current Sink or Source Drivers

●Used in CMOS High-to-Low Logic Level Converters

●Used in Designing Square Wave Oscillators

●Used in Voltage Multiplier Circuits

●Used in Toggling or ON-OFF Circuits

Texas Instruments (TI) is an American technology company headquartered in Dallas, Texas, which designs and manufactures semiconductors and various integrated circuits, and sells them to electronic designers and manufacturers worldwide. It is one of the top 10 semiconductor companies in global sales. The company focuses on the development of analog chips and embedded processors, which account for more than 80% of its revenue. TI also produces TI digital light processing technology and educational technology products, including calculators, microcontrollers and multi-core processors. As of 2016, the company has 45,000 patents worldwide.