Dual 4-input NAND gate in 74AC — where it fits
The Texas Instruments CD74AC20M96 is a dual 4-input NAND gate from the 74AC family, packaged in a 14-pin SOIC. It operates across a 1.5V to 5.5V supply range, making it suitable for mixed-voltage boards where a 3.3V core interfaces with 5V peripherals. The 24 mA symmetric output drive (both source and sink) handles typical fan-out to multiple CMOS or low-power TTL loads without external buffers. Rated for –55°C to 125°C, this gate is specified for industrial and automotive environments — engine bay, outdoor telecom cabinets, or factory-floor PLC I/O modules where the temperature swings wide. The 4 µA max quiescent current keeps the standing power negligible in battery-backed or always-on sections.
12.2 ns propagation delay — what it means for the bus
The max propagation delay is 12.2 ns at 5V with a 50 pF load.
Active, ROHS3, and the sourcing posture
The CD74AC20M96 carries an Active lifecycle status and is ROHS3 compliant.
