Dual D-type with set/reset — 150 MHz in a 14-SOIC
The Texas Instruments SN74LVC74AD is a dual positive-edge-triggered D-type flip-flop from the 74LVC family, with independent set (preset) and reset inputs and complementary outputs. Each of the two elements stores one bit, clocked at up to 150 MHz. The 1.65 V to 3.6 V supply range lets it bridge 1.8 V, 2.5 V, and 3.3 V logic domains without a level shifter — useful in mixed-voltage boards where a single logic family must talk to both a low-voltage MCU and a legacy 3.3 V peripheral.
5.2 ns propagation delay — timing budget for the bus
At 3.3 V with a 50 pF load, the max propagation delay is 5.2 ns. That is the number to enter into your timing closure spreadsheet for the data-to-clock path. The 24 mA symmetric output drive (both high and low) keeps edge rates fast enough to meet setup times on downstream loads without extra buffering. Input capacitance is 5 pF, so fanout on a 3.3 V bus is manageable — figure 10 to 15 loads before the rise time degrades.
-40°C to 125°C — industrial and automotive environment ready
Rated for the full -40°C to 125°C operating temperature range, this flip-flop suits outdoor telecom cabinets, engine-bay electronics, and factory-floor PLC I/O modules. The quiescent current sits at only 10 µA, so it adds negligible draw to a battery-backed or always-on rail.
Active lifecycle — no LTB pressure on this BOM line
The SN74LVC74AD carries an Active product status with ROHS3 compliance. For a production BOM that needs a reliable dual flip-flop in a standard SOIC-14 footprint, this part is a stable line item with no imminent obsolescence risk.