CD4068 8-input NAND Gate

Contents hide

CD4068 is an eight input NAND gate IC. This IC belongs to the CD4000 IC series. CD4068 allows designers to use NAND and AND implementations in DLD design and logic switching applications. The IC has a wide variety of working voltages and conditions and can directly be interfaced with TTL, CMOS, NMOS, and other devices. CD4068 offers a variety of features such as high noise immunity and ESD barring. The IC always comes in a 14-pin hermetically sealed dual in line package.

NAND Gate

The NAND gate is a digital logic gate that is used readily in digital electronics. NAND gate is also known as a universal gate as it can be used to mimic the behavior of any digital logic gate in existence. The output of a NAND gate will always be LOW if any one of its inputs is high. The gate will yield a high output only when all the inputs to the gate are LOW.

CD4068 Key Features

High Voltage Type (20V Rating)
Medium Speed Operation TPHL, TPLH = 75ns (Typ.) at VDD = 10V
Buffered Inputs and Outputs
5V, 10V and 15V Parametric Ratings
Standardized Symmetrical Output Characteristics
100% Tested for Quiescent Current at 20V
Maximum Input Current of 1µA at 18V Over Full Package Temperature Range; 100nA at 18V and +25oC
Noise Margin (Over Full Package/Temperature Range)
- 1V at VDD = 5V
- 2V at VDD = 10V
- 2.5V at VDD = 15V

CD4068 Pinout

Pin No	Pin Name	Description
1	OUT K	The output of 8 Bit NAND Gate
2	IN A	Input pin A
3	IN B	Input pin B
4	IN C	Input pin C
5	IN D	Input pin D
6	NC	No connection
7	VSS	Source Supply
8	NC	No Connection
9	IN E	Input Pin E
10	IN F	Input Pin F
11	IN G	Input Pin G
12	IN H	Input Pin H
13	OUT J	The complement output of 8 Bit NAND Gate
14	VDD	Drain Supply