7411 Triple 3-Input AND Gate IC Technical Summary

Overview

The 7411 is a monolithic triple 3-input AND gate integrated circuit fabricated using silicon-gate technology. It is part of the 7400 series of TTL logic devices and provides three independent 3-input AND gates in a single 14-pin package. The 7411 is designed for general-purpose logic applications where multiple AND functions are required.

This device features medium-speed operation with typical propagation delay times of 11 ns while consuming relatively low power. The 7411 maintains full logic level compatibility with other TTL families and can drive standard TTL inputs while being driven by them.

Features

• Triple 3-input AND gates in single package
• Fully compatible with most TTL logic families
• Standard symmetrical output characteristics
• Typical propagation delay: 11 ns
• Typical power dissipation: 22 mW per gate
• Operating temperature range: 0°C to +70°C
• Input clamp diodes for waveform shaping
• 14-pin DIP, SOIC, and other package options

Applications

The 7411 finds use in numerous digital logic applications including:

• General purpose logic circuits
• Data processing systems
• Control systems
• Instrumentation circuits
• Computer peripherals
• Industrial automation
• Signal gating and conditioning
• Address decoding
• Clock distribution networks

Electrical Characteristics

Absolute Maximum Ratings

• Supply Voltage (VCC): -0.5V to +7V
• DC Input Voltage (VI): -0.5V to VCC + 0.5V
• DC Output Voltage (VO): -0.5V to VCC + 0.5V
• DC Input Diode Current (IIK): ±20mA
• DC Output Diode Current (IOK): ±20mA
• DC Output Current (IO): ±25mA
• DC Supply Current per Output (ICC): ±55mA
• Storage Temperature Range: -65°C to +150°C

Recommended Operating Conditions

• Supply Voltage (VCC): +4.75V to +5.25V
• Input High Voltage (VIH): 2V min
• Input Low Voltage (VIL): 0.8V max
• Output High Current (IOH): -400μA
• Output Low Current (IOL): 16mA
• Operating Temperature Range: 0°C to +70°C

DC Characteristics (VCC = 5V, TA = 25°C)

• Input High Current (IIH): 40μA max
• Input Low Current (IIL): -1.6mA max
• Output High Voltage (VOH): 2.4V min (IOH = -400μA)
• Output Low Voltage (VOL): 0.4V max (IOL = 16mA)
• Supply Current (ICC): 12mA max (all gates switching)

AC Characteristics (VCC = 5V, TA = 25°C)

• Propagation Delay (tPLH, tPHL): 15ns max (CL = 15pF)
• Input Capacitance (CIN): 3pF typ
• Power Dissipation Capacitance (CPD): 22pF typ

Package Information

14-Pin Dual In-Line Package (DIP)

• Package Code: DIP-14
• Body Dimensions: 19.3mm x 6.35mm
• Lead Pitch: 2.54mm
• Lead Length: 3.3mm min
• Material: Molded Plastic
• Operating Temperature: 0°C to +70°C
• Storage Temperature: -65°C to +150°C

14-Pin Small Outline Integrated Circuit (SOIC)

• Package Code: SOIC-14
• Body Dimensions: 8.65mm x 3.9mm
• Lead Pitch: 1.27mm
• Lead Width: 0.33mm typ
• Material: Molded Plastic
• Operating Temperature: 0°C to +70°C
• Moisture Sensitivity Level (MSL): 1

Pin Configuration

The 7411 IC features the following pin configuration:

• Pin 1: 1A (Gate 1 Input A)
• Pin 2: 1B (Gate 1 Input B)
• Pin 3: 2A (Gate 2 Input A)
• Pin 4: 2B (Gate 2 Input B)
• Pin 5: 2C (Gate 2 Input C)
• Pin 6: 2Y (Gate 2 Output)
• Pin 7: GND (Ground)
• Pin 8: 3Y (Gate 3 Output)
• Pin 9: 3A (Gate 3 Input A)
• Pin 10: 3B (Gate 3 Input B)
• Pin 11: 3C (Gate 3 Input C)
• Pin 12: 1Y (Gate 1 Output)
• Pin 13: 1C (Gate 1 Input C)
• Pin 14: VCC (Positive Supply Voltage)

Truth Table

The logical operation of each AND gate in the 7411 follows this truth table:

• Input A = L, Input B = X, Input C = X → Output Y = L
• Input A = X, Input B = L, Input C = X → Output Y = L
• Input A = X, Input B = X, Input C = L → Output Y = L
• Input A = H, Input B = H, Input C = H → Output Y = H

Where: L = Low level (0), H = High level (1), X = Don't care (either 0 or 1)

Design Considerations

When implementing the 7411 in circuit designs, consider the following:

• Unused inputs should be tied to VCC through a 1kΩ resistor or connected to other used inputs
• Decoupling capacitors (0.1μF ceramic) should be placed close to VCC and GND pins
• Outputs should not be shorted to VCC or GND
• For high-speed applications, keep trace lengths short to minimize propagation delays
• When driving capacitive loads greater than 15pF, consider adding series resistors to limit rise/fall times