74LS260 Dual 5-Input NOR Gate

The 74LS series of integrated circuits (ICs) was one of the most popular logic families of transistor-transistor logic (TTL) logic chips. 74LS series is a bipolar, low-power Schottky IC.74LS260 Contain 5 inputs on each NOR Gate.

74LS260 Features

• Two Independent Five Input NOR Gates
• Low Power Requirements
• Fast Switching Speeds
• Operating Temperature to 70°C
• Standard TTL Switching Voltages

74LS260 Specifications

Supply Voltage	4.75 – 5.25Vdc
Maximum Clock Frequency	40Mhz
Power Dissipation	2mW/gate @100kHz
Minimum Output Current	8mA
Propagation Delay	10nS
Fan Out (TTL Loads)	20

74LS260 Pinout Diagram

74LS260 Pin Description

Pin No	Pin Name	Description
1	A1	NOR Gate 1 Input 1
2	B1	NOR Gate 1 Input 2
3	C1	NOR Gate 1 Input 3
4	A2	NOR Gate 2 Input 1
5	X1	Output Of NOR Gate 1
6	X2	Output Of NOR Gate 2
7	GND	Ground
8	B2	NOR Gate 2 Input 2
9	C2	NOR Gate 2 Input 3
10	D2	NOR Gate 2 Input 4
11	E2	NOR Gate 2 Input 5
12	D1	NOR Gate 1 Input 4
13	E1	NOR Gate 1 Input 5
14	VCC	Positive Supply

Applications

• Construct the basic gates similar to AND gate

74LS260 Alternative Equivalent

74LS02, 74LS27

Download the 74LS260 Dual 5-Input NOR Gate Datasheet from the link given below.