Quad 2-input NAND gate in 14-DIP — 12 ns propagation delay at 5 V
The 74HCT00N,652 from NXP Semiconductors is a quad 2-input NAND gate in the 74HCT logic family, packaged in a 14-lead DIP (0.300-inch, 7.62 mm pitch) for through-hole mounting. The input logic-low threshold is 0.8 V maximum, and the logic-high threshold is 2 V minimum, ensuring direct interface with 5 V TTL outputs without external level translation.
Supply voltage and logic-level compatibility for 5 V systems
The guaranteed low-level input threshold of 0.8 V and high-level threshold of 2 V mean it recognizes TTL output levels (0–0.8 V low, 2–5 V high) without additional biasing. Output drive capability is specified at 4 mA source and 4 mA sink per gate, sufficient for driving one or two standard TTL loads or CMOS inputs with high-impedance inputs. The 12 ns propagation delay at 4.5 V and 50 pF load sets the maximum toggle rate; for higher-speed paths, the 74HC family offers lower propagation delays at the same supply voltage.
Industrial temperature range and quiescent current
The maximum quiescent current of 40 µA across the full temperature range keeps the static power contribution negligible in always-on or battery-backed applications.