Quad 2-input NOR gate in 14-TSSOP
The SN74HCT02PWT is a Texas Instruments quad 2-input NOR gate from the 74HCT logic family, packaged in a 14-TSSOP (0.173", 4.40mm width) for surface-mount assembly. It integrates four independent NOR gates, each with two inputs, on a single IC. Operating from a 4.5V to 5.5V supply, it delivers 4mA source and sink output current with a typical quiescent draw of just 2 µA — suited for 5V TTL-compatible logic systems where low standby power matters. The 18ns maximum propagation delay at 5.5V and 50pF load sets the timing budget for the signal path — a 55 MHz toggle ceiling in a 5V rail, though real throughput depends on the fan-out and trace capacitance.
Supply voltage and temperature grade
The input logic thresholds are 0.8V low and 2V high, directly compatible with 5V TTL levels — no external level translation needed when driving from a 5V microcontroller or another 74HCT output.
Package and PCB integration
The 14-TSSOP body (4.40mm wide, 0.65mm pin pitch) is a common footprint shared with many 14-pin logic ICs. The supplier device package is 14-TSSOP, and the mounting is surface-mount.