CD4503 Tri-state Hex Buffer

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CD4503 is a hex non inverting buffer with 3-state outputs having high sink- and source-current capability. the CD4503 Hex buffer is supplied in 16-lead hermetic dual-in-line ceramic packages. This line of IC series a wide array of features such as ESD protection & thermal overload protection. Hex Buffer CD4503 has integral importance in DLD design and logic switching applications.

What is A Hex Buffer?

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.

CD4503 Key Features

Wide supply voltage range: 3.0 VDC to 18 VDC
3-STATE outputs
Symmetrical turn on/turn off delays
Symmetrical output rise and fall times
Pin-for-pin replacement for MM80C97 and MC14503

CD4503 Pinout

Pin No	Pin Name	Description
1	DIS A	Disable A
2	D1	Input Pin Buffer 1
3	Q1	Output Pin Buffer 1
4	D2	Input Pin Buffer 2
5	Q2	Output Pin Buffer 2
6	D3	Input Pin Buffer 3
7	Q3	Output Pin Buffer 3
8	VSS	Source Supply
9	Q4	Output Pin Buffer 4
10	D4	Input Pin Buffer 4
11	Q5	Output Pin Buffer 5
12	D5	Input Pin Buffer 5
13	Q6	Output Pin Buffer 6
14	D6	Input Pin Buffer 6
15	DIS B	Disable B
16	VDD	Drain supply

Application

3-State hex buffer for interfacing IC’S with data buses
CMOS to TTL Hex Buffer
Hex Buffers are also used to isolate other gates or circuit stages from each other preventing the impedance of one circuit from affecting the impedance of another