CD4049 Hex Buffer Converter

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CD4049 is a part of the CD4000 IC series. The CD4049 hex buffers are made by using monolithic complementary MOS (CMOS) technology, integrated with N- and P-channel enhancement mode transistors. These devices are intended for use as hex buffers, CMOS to DTL/ TTL converters, or as CMOS current drivers, and at VDD = 5.0V, they can drive directly two DTL/TTL loads over the full operating temperature range. The IC always comes in a 16 – pin hermetically sealed dual in line IC package. CD4049

Buffer Converter

A buffer is a basic logic gate that passes its input, unchanged, to its output. Its behavior is the opposite of a NOT gate. The main purpose of a buffer is to regenerate the input, usually using a strong high and a strong low. A buffer has one input and one output; its output is always equal to its input. Buffers are also used to increase the propagation delay of circuits by driving the large capacitive loads.

Inverter

A Hex inverter is a digital logic gate that inverts the input digital signal. The output of a hex inverter is always high when the input signal is low. Similarly, a hex inverter always yields a low output when the input signal is high.

CD4049 Key Features

Wide supply voltage range: 3.0V to 15V
Direct drive to 2 TTL loads at 5.0V over full temperature range
High source and sink current capability
Special input protection permits input voltages greater than VDD

CD4049 Pinout

Pin No	Pin Name	Description
1	VDD	Drain supply
2	G=A’	complement output of inverter A
3	A	input of inverter A
4	H=B’	complement output of inverter B
5	B	input of inverter B
6	I=C’	complement output of inverter C
7	C	input of inverter C
8	VSS	source supply
9	D	input of inverter D
10	J=D’	complement output of inverter D
11	E	input of inverter E
12	K=E’	complement output of inverter E
13	NC	No connection
14	F	input of inverter F
15	L=F’	complement output of inverter F
16	NC	No connection