74C00

74C00 Quad 2-Input NAND Gate

Overview

The 74C00 is a member of the 74C logic family, which provides CMOS implementations of standard 74-series logic functions. This IC contains four independent 2-input NAND gates in a single package. The 74C00 offers excellent noise immunity, low power consumption, and high-speed operation typical of CMOS technology while maintaining pinout and functional compatibility with its TTL counterparts like the 7400.

Designed for general-purpose logic applications, the 74C00 is particularly well-suited for battery-operated and low-power systems due to its CMOS construction. All inputs feature protection against static discharge, making the device robust for real-world applications.

Key Features

• Quad 2-input NAND gates in single package
• Fully compatible with 74-series logic family pinouts
• CMOS technology for low power consumption
• Wide operating voltage range: 3V to 15V
• High noise immunity: 0.45 VDD (typical)
• Low power dissipation: 10nW per gate (typical at 5V)
• Balanced propagation delays
• Standardized symmetrical output characteristics
• Input protection against electrostatic discharge
• Operating temperature range: -40°C to +85°C

Applications

The 74C00 finds use in numerous digital logic applications including:

• General purpose logic circuits
• Waveform generation
• Clock distribution systems
• Data processing systems
• Instrumentation and control systems
• Consumer electronics
• Battery-powered devices
• Interface circuits between different logic families
• Signal conditioning circuits
• System prototyping and educational applications

Electrical Characteristics

All values typical at VDD = 5V, TA = 25°C unless otherwise specified.

DC Characteristics

• High-level input voltage (VIH): 3.5V min
• Low-level input voltage (VIL): 1.5V max
• High-level output voltage (VOH): 4.95V min (IOH = -0.4mA)
• Low-level output voltage (VOL): 0.05V max (IOL = 0.4mA)
• Input leakage current (IIN): ±0.1μA max
• Quiescent supply current (IDD): 1μA max (all inputs at VDD or GND)

AC Characteristics

• Propagation delay (tPLH, tPHL): 60ns max (CL = 50pF, RL = 200kΩ)
• Transition time (tTLH, tTHL): 50ns max
• Input capacitance (CIN): 5pF typical
• Power dissipation capacitance (CPD): 20pF typical

Power Supply Characteristics

• Supply voltage range (VDD): 3V to 15V
• Power supply current (dynamic): 0.5mA/MHz/gate typical

Package Information

The 74C00 is available in several standard package options:

14-Pin Plastic Dual In-Line Package (PDIP)

• Package code: N
• Dimensions: 19.3mm x 6.35mm x 4.57mm
• Lead pitch: 2.54mm
• Operating temperature: -40°C to +85°C

14-Pin Small Outline Package (SOIC)

• Package code: M
• Dimensions: 8.65mm x 3.9mm x 1.5mm
• Lead pitch: 1.27mm
• Operating temperature: -40°C to +85°C

14-Pin Thin Shrink Small Outline Package (TSSOP)

• Package code: PW
• Dimensions: 5mm x 4.4mm x 1.1mm
• Lead pitch: 0.65mm
• Operating temperature: -40°C to +85°C

Functional Description

Each of the four NAND gates in the 74C00 performs the Boolean function Y = A•B in positive logic. The gates operate independently and share only power supply connections. The CMOS technology provides rail-to-rail output swing and symmetrical source/sink current capability.

The device features buffered outputs that improve noise margin and provide higher output current capability compared to unbuffered CMOS gates. This makes the 74C00 suitable for driving moderate capacitive loads and transmission lines in bus-oriented systems.

Recommended Operating Conditions

• Supply voltage (VDD): 3V to 15V
• Input rise/fall time: 15ns max (VDD = 5V)
• Operating free-air temperature: -40°C to +85°C
• Maximum junction temperature: 150°C

Handling and Mounting

Standard CMOS handling precautions should be observed:

• Use proper ESD protection when handling devices
• Avoid floating inputs
• Unused inputs should be tied to VDD or GND
• Follow recommended soldering profiles for the specific package
• For surface mount packages, observe proper reflow soldering techniques

Reliability Information

• ESD protection: Human Body Model ≥ 2000V
• Latch-up performance: ≥ 250mA
• Moisture sensitivity level (MSL): Varies by package (Level 1 for PDIP, Level 3 for SOIC/TSSOP)
• Flammability rating: UL 94V-0

Alternate Part Numbers

Functionally equivalent devices from other manufacturers include:

• CD74C00 (Texas Instruments)
• MC74C00 (ON Semiconductor)
• TC74C00 (Toshiba)
• HEF4001 (NXP)

Design Considerations

When designing with the 74C00:

• Decouple power supply with 0.1μF capacitor near the package
• Limit capacitive loads to maintain signal integrity
• For unused gates, tie inputs to VDD or GND and leave output open
• When interfacing with TTL, consider using pull-up resistors
• For high-speed applications, minimize trace lengths