• Logic Function: Triple 3-input NAND
• Output Type: Open-Collector (OC) - requires pull-up resistors to operate
• Package: 14-pin DIP
• Technology: TTL (74LS12 is the common Schottky variant)
• Input Logic Levels:

VIL≤0.7Vcap V sub cap I cap L end-sub is less than or equal to 0.7 cap V

𝑉𝐼𝐿≤0.7𝑉

VIH≥2.0Vcap V sub cap I cap H end-sub is greater than or equal to 2.0 cap V

𝑉𝐼𝐻≥2.0𝑉

• Max Output Voltage: 5.5V (Open Collector) 

Pin Configuration: 

• Gates: 3 Independent 3-Input NAND Gates
• Power:

VCCcap V sub cap C cap C end-sub

𝑉𝐶𝐶

(Pin 14), GND (Pin 7)