74LS15 Triple 3-Input AND Gate IC

74LS15 designed as a high-speed three independent 3-input positive-AND gates IC fabricated in low power schotkey technology. The 74LS15 is a three-input positive-AND gate IC with three separate inputs built in low-power Schotkey technology. The logic AND function is performed by each of the three separate gates in this device. They use positive logic to perform the Boolean functions Y = A • B • C. This IC is designed to operate at temperatures ranging from 55°C to 125°C, which is the complete military temperature range. The 74LS15 is available in 14-pin PDIP wide-body surface-mount packages.

The 74HC logic family is pin-out compatible with the 74LS logic family of high grade. It features a 4.5V to 5.5V supply voltage range. The 74LS15 IC uses advanced silicon-gate CMOS technology to achieve operating rates that are practically identical to LS-TTL gates while consuming less power than conventional CMOS integrated circuits. The 74LS15 has a strong noise immunity and, as a result, can drive TTL loads. Internal diode clamps to VCC and ground protect all inputs from static discharge damage.

The AND gate designed as a basic digital logic gate that implements logical conjunction.  An AND gate operates on logical multiplication rules. If all the inputs to the AND gate are HIGH, then the output will be high. If none or not all inputs to the AND gate are HIGH,  results in LOW output.

Applications

• Combining power good signals
• Enable digital signals