CD4009 Hex Buffer - Datasheet

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CD4009 Hex Buffer/Converter may be used as a CMOS to TTL or DTL logic-level converter or a CMOS high sink-current driver. The IC offers a wide variety of working conditions and voltages and interfaces directly with TTL, CMOS, and NMOS devices. The CD4009UB and CD4010B types are supplied in 16-lead hermetic dual-in-line ceramic packages. CD4009 offers many different features such as ESD protection & thermal overload protection.

What is a Buffer?

A Hex 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.

CD4009 Key Features

High-Voltage Type (20V Rating)
Technology Family CD4000
Bits (#) 6
IOH (Max) (mA) -1.1
IOL (Max) (mA) 16
Rating Catalog
Six Independent Buffers in a Single Package
Inverting Type
High Voltage Type
5V, 10V, and 15V Parametric Rating
Low Power CMOS
100% Tested for Quiescent Current at 20V
Maximum Input Current of 1μA at 18V Over Full
Package-Temperature Range:10nA at 18V and +25C

CD4009 Pinout

Pin No	Pin Name	description
1	VCC	Collector supply voltage
2	G=A’	output of buffer 1 G=A’
3	A	input of buffer 1
4	H=B’	output of buffer 2 H=B’
5	B	input of buffer 2
6	I=C’	output of buffer 3 I=C’
7	C	input of buffer 3
8	VSS	source supply
9	D	input of buffer 4
10	J=D’	output of buffer 4 J=D’
11	E	input of buffer 5
12	K=E’	output of buffer 5 K=E’
13	NC	NO CONNECTION
14	F	input of buffer 6
15	L=F’	output of buffer 6 L=F’
16	VDD	Drain supply