The TC74HCT00FS is a high-speed CMOS Quad 2-Input NAND Gate manufactured by Toshiba Semiconductor and Storage. Similar to the TC74HCT00AF, this device offers pin and function compatibility with the 74LS00 series while providing improved performance through CMOS technology. The TC74HCT00FS utilizes silicon gate C2MOS technology for operating speeds comparable to LSTTL, while retaining the low power consumption characteristic of CMOS devices.

Applications

• Digital logic circuits
• Combinational logic circuits
• Buffering applications
• Oscillator circuits
• Clock signal generation

Features

• High Speed: tpd = 11 ns (typ.) at VCC = 5V.
• Low Power Dissipation: ICC = 4 μA (max) at Ta = 25°C.
• TTL Input Compatibility: VIH = 2.0 V (min), VIL = 0.8 V (max).
• Output Drive Capability: 10 LSTTL Loads.
• Symmetrical Output Impedance: |IOH| = IOL = 4 mA (min).
• Wide Operating Voltage Range: VCC = 4.5 V to 5.5 V.

Benefits

• Easy system upgrades with pin-to-pin compatibility with 74LS00 logic.
• Low power consumption for energy-efficient designs and longer battery life.
• TTL input compatibility for seamless integration with existing TTL circuits.
• High-speed operation ensures efficient performance in various applications.
• Improved noise margin due to CMOS logic levels.
• Reduced component count by integrating four NAND gates in one package.

Additional Details

The TC74HCT00FS operates within a supply voltage range of 4.5V to 5.5V. Unlike the TC74HCT00AF, the TC74HCT00FS is packaged in a different format, typically a surface mount package (e.g., SSOP, SOP). These packages are often smaller and have different pin configurations compared to the AF variant, which might affect board layout considerations. The inputs are protected against static discharge, and the device implements the standard NAND gate logic function, where the output is low only when both inputs are high.

The operating temperature range typically extends from -40°C to +85°C. The TC74HCT00FS conforms to JEDEC standards for CMOS ICs. Symmetrical output impedance ensures balanced signal propagation, minimizing signal distortion. Its TTL-compatible input thresholds facilitate smooth integration with TTL-based systems. The device exhibits high noise immunity, ensuring reliable operation in noisy industrial or automotive environments.