Dual D-type with set and reset — what it brings to the board
The TI SN74F74D is a dual D-type flip-flop from the 74F family, clocked at 145 MHz with positive-edge triggering. Each of the two elements has independent set (preset) and reset inputs, plus complementary Q and Q̅ outputs. The 5.8 ns propagation delay at 5 V and 50 pF load sets the timing margin for high-speed data paths and state machines running on a 5 V rail. Supply range is 4.5 V to 5.5 V, and quiescent current sits at 16 mA. Outputs source 1 mA and sink 20 mA — enough to drive a couple of standard TTL loads or feed a bus transceiver.
145 MHz clock and 5.8 ns propagation delay — timing budget for fast logic
The 145 MHz clock rating and 5.8 ns propagation delay (max at 5 V, 50 pF) define the timing window for high-speed logic paths.
Lifecycle and supply posture
The SN74F74D carries an Active lifecycle status with ROHS3 compliance. For a BOM line that needs a proven 5 V flip-flop in a rework-friendly SOIC package, this part is a straightforward fit.