Texas Instruments SN54F20 Dual 4-Input Positive-NAND Gates M38510/33004BDA

The SN54F20 is a dual 4-input positive-NAND gate designed for use in various digital logic applications. It features two independent NAND gates that perform the Boolean functions Y = A ,Ä¢ B ,Ä¢ C ,Ä¢ D or Y = A + B + C + D in positive logic. The device is characterized for operation over a military temperature range of -55°C to 125°C, making it suitable for harsh environments. The SN54F20 operates with a supply voltage range of 4.5V to 5.5V and has a maximum input voltage range of -1.2V to 7V. It can handle input currents from -30 mA to 5 mA and output currents of up to 40 mA in the low state. The device's switching characteristics include propagation delays of 1.6 ns to 5 ns for low-to-high transitions and 1 ns to 4.3 ns for high-to-low transitions, depending on the specific conditions. This part is available in various package options, including the 14-pin Ceramic Flat Package (CFP), which is relevant for the M38510/33004BDA part number. The SN54F20 is suitable for applications requiring reliable performance in extreme temperature conditions.