CD4049 Buffer and Converter IC: Pinout, Equivalent and Datasheet
5/15V V 50 ns ns 50 ns ns 19.3mm mm Gates & Inverters 5.08mm mm Through Hole Surface Mount 10V V 4μA μA









5/15V V 50 ns ns 50 ns ns 19.3mm mm Gates & Inverters 5.08mm mm Through Hole Surface Mount 10V V 4μA μA
Hello, guys. This is Rose. Today I will detail the introduction to CD4049 to you. CD4049 is a CMOS hex inverting buffer and converter IC. This article mainly introduce pinout, equivalent, datasheet and other detailed information about Texas Instruments CD4049.

Square Triangle and Sine wave using CD4049 chip
CD4049 Description
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.
CD4049 Pinout


CD4049 CAD Model
Symbol

Footprint

3D Model

CD4049 Features
●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.
Specifications
- TypeParameter
- Factory Lead Time8 Weeks
- Lifecycle Status
Lifecycle Status refers to the current stage of an electronic component in its product life cycle, indicating whether it is active, obsolete, or transitioning between these states. An active status means the component is in production and available for purchase. An obsolete status indicates that the component is no longer being manufactured or supported, and manufacturers typically provide a limited time frame for support. Understanding the lifecycle status is crucial for design engineers to ensure continuity and reliability in their projects.
ACTIVE (Last Updated: 2 days ago) - Contact Plating
Contact plating (finish) provides corrosion protection for base metals and optimizes the mechanical and electrical properties of the contact interfaces.
Gold - Mount
In electronic components, the term "Mount" typically refers to the method or process of physically attaching or fixing a component onto a circuit board or other electronic device. This can involve soldering, adhesive bonding, or other techniques to secure the component in place. The mounting process is crucial for ensuring proper electrical connections and mechanical stability within the electronic system. Different components may have specific mounting requirements based on their size, shape, and function, and manufacturers provide guidelines for proper mounting procedures to ensure optimal performance and reliability of the electronic device.
Through Hole - Mounting Type
The "Mounting Type" in electronic components refers to the method used to attach or connect a component to a circuit board or other substrate, such as through-hole, surface-mount, or panel mount.
Through Hole - Package / Case
refers to the protective housing that encases an electronic component, providing mechanical support, electrical connections, and thermal management.
16-DIP (0.300, 7.62mm) - Number of Pins16
- Logic Level-Low1V ~ 2.5V
- Logic Level-High4V ~ 12.5V
- Operating Temperature
The operating temperature is the range of ambient temperature within which a power supply, or any other electrical equipment, operate in. This ranges from a minimum operating temperature, to a peak or maximum operating temperature, outside which, the power supply may fail.
-55°C~125°C - Packaging
Semiconductor package is a carrier / shell used to contain and cover one or more semiconductor components or integrated circuits. The material of the shell can be metal, plastic, glass or ceramic.
Tube - Series
In electronic components, the "Series" refers to a group of products that share similar characteristics, designs, or functionalities, often produced by the same manufacturer. These components within a series typically have common specifications but may vary in terms of voltage, power, or packaging to meet different application needs. The series name helps identify and differentiate between various product lines within a manufacturer's catalog.
4000B - JESD-609 Code
The "JESD-609 Code" in electronic components refers to a standardized marking code that indicates the lead-free solder composition and finish of electronic components for compliance with environmental regulations.
e4 - Part Status
Parts can have many statuses as they progress through the configuration, analysis, review, and approval stages.
Active - Moisture Sensitivity Level (MSL)
Moisture Sensitivity Level (MSL) is a standardized rating that indicates the susceptibility of electronic components, particularly semiconductors, to moisture-induced damage during storage and the soldering process, defining the allowable exposure time to ambient conditions before they require special handling or baking to prevent failures
1 (Unlimited) - Number of Terminations16
- Termination
Termination in electronic components refers to the practice of matching the impedance of a circuit to prevent signal reflections and ensure maximum power transfer. It involves the use of resistors or other components at the end of transmission lines or connections. Proper termination is crucial in high-frequency applications to maintain signal integrity and reduce noise.
Through Hole - ECCN Code
An ECCN (Export Control Classification Number) is an alphanumeric code used by the U.S. Bureau of Industry and Security to identify and categorize electronic components and other dual-use items that may require an export license based on their technical characteristics and potential for military use.
EAR99 - Additional Feature
Any Feature, including a modified Existing Feature, that is not an Existing Feature.
CMOS-TTL LEVEL TRANSLATOR - HTS Code
HTS (Harmonized Tariff Schedule) codes are product classification codes between 8-1 digits. The first six digits are an HS code, and the countries of import assign the subsequent digits to provide additional classification. U.S. HTS codes are 1 digits and are administered by the U.S. International Trade Commission.
8542.39.00.01 - Voltage - Supply
Voltage - Supply refers to the range of voltage levels that an electronic component or circuit is designed to operate with. It indicates the minimum and maximum supply voltage that can be applied for the device to function properly. Providing supply voltages outside this range can lead to malfunction, damage, or reduced performance. This parameter is critical for ensuring compatibility between different components in a circuit.
10V - Terminal Position
In electronic components, the term "Terminal Position" refers to the physical location of the connection points on the component where external electrical connections can be made. These connection points, known as terminals, are typically used to attach wires, leads, or other components to the main body of the electronic component. The terminal position is important for ensuring proper connectivity and functionality of the component within a circuit. It is often specified in technical datasheets or component specifications to help designers and engineers understand how to properly integrate the component into their circuit designs.
DUAL - Number of Functions6
- Terminal Pitch
The center distance from one pole to the next.
2.54mm - Base Part Number
The "Base Part Number" (BPN) in electronic components serves a similar purpose to the "Base Product Number." It refers to the primary identifier for a component that captures the essential characteristics shared by a group of similar components. The BPN provides a fundamental way to reference a family or series of components without specifying all the variations and specific details.
CD4049 - Number of Outputs6
- Polarity
In electronic components, polarity refers to the orientation or direction in which the component must be connected in a circuit to function properly. Components such as diodes, capacitors, and LEDs have polarity markings to indicate which terminal should be connected to the positive or negative side of the circuit. Connecting a component with incorrect polarity can lead to malfunction or damage. It is important to pay attention to polarity markings and follow the manufacturer's instructions to ensure proper operation of electronic components.
Inverting - Power Supplies
an electronic circuit that converts the voltage of an alternating current (AC) into a direct current (DC) voltage.?
5/15V - Number of Channels6
- Voltage
Voltage is a measure of the electric potential difference between two points in an electrical circuit. It is typically represented by the symbol "V" and is measured in volts. Voltage is a crucial parameter in electronic components as it determines the flow of electric current through a circuit. It is responsible for driving the movement of electrons from one point to another, providing the energy needed for electronic devices to function properly. In summary, voltage is a fundamental concept in electronics that plays a key role in the operation and performance of electronic components.
20V - Load Capacitance
the amount of capacitance measured or computed across the crystal terminals on the PCB. Frequency Tolerance. Frequency tolerance refers to the allowable deviation from nominal, in parts per million (PPM), at a specific temperature, usually +25°C.
50pF - Propagation Delay
the flight time of packets over the transmission link and is limited by the speed of light.
50 ns - Quiescent Current
The quiescent current is defined as the current level in the amplifier when it is producing an output of zero.
4μA - Turn On Delay Time
Turn-on delay, td(on), is the time taken to charge the input capacitance of the device before drain current conduction can start.
50 ns - Family
In electronic components, the parameter "Family" typically refers to a categorization or classification system used to group similar components together based on their characteristics, functions, or applications. This classification helps users easily identify and select components that meet their specific requirements. The "Family" parameter can include various subcategories such as resistors, capacitors, diodes, transistors, integrated circuits, and more. Understanding the "Family" of an electronic component can provide valuable information about its compatibility, performance specifications, and potential uses within a circuit or system. It is important to consider the "Family" parameter when designing or troubleshooting electronic circuits to ensure proper functionality and compatibility with other components.
4000/14000/40000 - Logic Function
In electronic components, the term "Logic Function" refers to the specific operation or behavior of a component based on its input signals. It describes how the component processes the input signals to produce the desired output. Logic functions are fundamental to digital circuits and are used to perform logical operations such as AND, OR, NOT, and XOR.Each electronic component, such as logic gates or flip-flops, is designed to perform a specific logic function based on its internal circuitry. By understanding the logic function of a component, engineers can design and analyze complex digital systems to ensure proper functionality and performance. Different logic functions can be combined to create more complex operations, allowing for the creation of sophisticated digital devices and systems.
Buffer, Inverter, Inverting - Logic Type
Logic Type in electronic components refers to the classification of circuits based on the logical operations they perform. It includes types such as AND, OR, NOT, NAND, NOR, XOR, and XNOR, each defining the relationship between binary inputs and outputs. The logic type determines how the inputs affect the output state based on specific rules of Boolean algebra. This classification is crucial for designing digital circuits and systems, enabling engineers to select appropriate components for desired functionalities.
Inverter - Max I(ol)
Max I(ol) refers to the maximum output current that a specific electronic component, such as a transistor or integrated circuit, can sink or source. This parameter is crucial in determining the capability of the component to drive external loads without being damaged. It is typically specified in the component's datasheet and is important for ensuring proper operation and reliability of the circuit in which the component is used. Designers must ensure that the output current requirements of the circuit do not exceed the specified "Max I(ol)" value to prevent overloading and potential failure of the component.
0.018 A - Max Propagation Delay @ V, Max CL
The parameter "Max Propagation Delay @ V, Max CL" in electronic components refers to the maximum amount of time it takes for a signal to propagate through the component from input to output when operating at a specific voltage (V) and driving a maximum specified load capacitance (CL). This parameter is crucial in determining the speed and performance of the component in a circuit. A shorter propagation delay indicates faster signal processing and better overall performance. Designers use this parameter to ensure that signals can be transmitted and received within the required timing constraints in their electronic systems.
50ns @ 15V, 50pF - Prop. Delay@Nom-Sup
The parameter "Prop. Delay@Nom-Sup" in electronic components refers to the propagation delay at nominal supply voltage. Propagation delay is the time it takes for a signal to travel from the input of a component to the output, typically measured in nanoseconds or picoseconds. The nominal supply voltage is the standard operating voltage specified for the component.This parameter is important because it affects the overall speed and performance of the electronic circuit. A shorter propagation delay means faster signal processing and better overall performance. Designers need to consider the propagation delay at the nominal supply voltage when selecting components for their circuits to ensure proper functionality and meet performance requirements.
120 ns - Schmitt Trigger
A Schmitt Trigger is a type of comparator circuit commonly used in electronics to convert an analog input signal into a digital output signal. It has hysteresis, which means that the output switches at different voltage levels depending on whether the input is rising or falling. This hysteresis helps to eliminate noise and provide a more stable output signal. Schmitt Triggers are often used in applications where noise immunity and signal conditioning are important, such as in signal processing, waveform shaping, and digital logic circuits.
NO - Power Supply Current-Max (ICC)
The parameter "Power Supply Current-Max (ICC)" in electronic components refers to the maximum amount of current that the component will draw from the power supply under specified operating conditions. It is an important specification as it helps determine the power consumption of the component and ensures that the power supply can provide enough current to meet the component's requirements without being overloaded. Exceeding the maximum power supply current can lead to overheating, component damage, or system failure. Designers use this parameter to select an appropriate power supply and ensure the reliable operation of the electronic system.
0.12mA - Width6.35mm
- Length19.3mm
- Height5.08mm
- Thickness
Thickness in electronic components refers to the measurement of how thick a particular material or layer is within the component structure. It can pertain to various aspects, such as the thickness of a substrate, a dielectric layer, or conductive traces. This parameter is crucial as it impacts the electrical, mechanical, and thermal properties of the component, influencing its performance and reliability in electronic circuits.
3.9mm - REACH SVHC
The parameter "REACH SVHC" in electronic components refers to the compliance with the Registration, Evaluation, Authorization, and Restriction of Chemicals (REACH) regulation regarding Substances of Very High Concern (SVHC). SVHCs are substances that may have serious effects on human health or the environment, and their use is regulated under REACH to ensure their safe handling and minimize their impact.Manufacturers of electronic components need to declare if their products contain any SVHCs above a certain threshold concentration and provide information on the safe use of these substances. This information allows customers to make informed decisions about the potential risks associated with using the components and take appropriate measures to mitigate any hazards.Ensuring compliance with REACH SVHC requirements is essential for electronics manufacturers to meet regulatory standards, protect human health and the environment, and maintain transparency in their supply chain. It also demonstrates a commitment to sustainability and responsible manufacturing practices in the electronics industry.
No SVHC - Radiation Hardening
Radiation hardening is the process of making electronic components and circuits resistant to damage or malfunction caused by high levels of ionizing radiation, especially for environments in outer space (especially beyond the low Earth orbit), around nuclear reactors and particle accelerators, or during nuclear accidents or nuclear warfare.
No - RoHS Status
RoHS means “Restriction of Certain Hazardous Substances” in the “Hazardous Substances Directive” in electrical and electronic equipment.
ROHS3 Compliant - Lead Free
Lead Free is a term used to describe electronic components that do not contain lead as part of their composition. Lead is a toxic material that can have harmful effects on human health and the environment, so the electronics industry has been moving towards lead-free components to reduce these risks. Lead-free components are typically made using alternative materials such as silver, copper, and tin. Manufacturers must comply with regulations such as the Restriction of Hazardous Substances (RoHS) directive to ensure that their products are lead-free and environmentally friendly.
Lead Free
Where to use CD4049?
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.
How to use CD4049?
The operation of this IC is simple as it simply inverts the output.
CD4049 Equivalent
CD4049 Applications
●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
CD4049 Manufacturer
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.
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Datasheet PDF
- PCN Design/Specification :
Parts with Similar Specs
- ImagePart NumberManufacturerPackage / CaseNumber of PinsLogic FunctionPropagation DelaySupply VoltageQuiescent CurrentTechnologyMountView Compare
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4 μA
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16
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1.What is the difference between CD4049 and 74LS04?
The CD series are CMOS integrated circuits with a wide range of power supply voltage, which can work at 3~12V, and the working current is small; 74LS04 is a TTL integrated circuit, which can only work on 5V power supply, but the speed is faster. Usually you can use CD4049 instead of 74LS04, but it depends on whether the power supply voltage is 5V or not.
2.How to judge the first pin of CD4049?
General pin identification of integrated circuits: The side of the circuit printed with the model number is upward, and the side with a small semicircular notch on one side is on the left hand side. If there is no small semicircle gap, a small dot pit is also placed on the left hand side. Start from the bottom of the notch or pit as the first pin. Arrange counterclockwise. From left to right at the bottom, then from right to left at the top.
3.Can CD4069 replace CD4049?
CD4069 is a logic gate circuit, which is used as a logic NOT circuit. CD4049 also has a strong drive current and is more suitable for driving TTL gates. It is often used as an interface circuit for level conversion. Clamp the 3-15V voltage of cmos to 5V (5V shared by CD4049 and TTL) to output and drive the TTL gate.
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