Dual D-type flip-flop with set and reset — 34 MHz, 5V only
The Texas Instruments SN74ALS74ADR is a dual positive-edge-triggered D-type flip-flop with individual set (preset) and reset inputs, complementary outputs, and a rated clock frequency of 34 MHz. Each of the two elements stores one bit. It operates from a 4.5 V to 5.5 V supply — strictly a 5 V rail part — and is specified over the commercial temperature range of 0°C to 70°C. Propagation delay is 18 ns typical at 5 V into a 50 pF load, which sets the timing budget for bus-oriented or control-register applications in office equipment, appliances, and indoor PCB designs. The package is a 14-SOIC (3.90 mm width), surface-mount, and the part is ROHS3 compliant.
34 MHz clock and 18 ns propagation delay — timing margin for 5 V synchronous logic
The 34 MHz clock frequency and 18 ns propagation delay (at 5 V, 50 pF) define the usable speed grade for this flip-flop. Quiescent current is 4 mA, and the output drive is 400 µA source, 8 mA sink.
Active production — no LTB risk, ROHS3 compliant
The SN74ALS74ADR carries an active lifecycle status with no end-of-life notice. It is ROHS3 compliant, so it passes EU RoHS requirements without exemption claims. For a BOM line that needs a 5 V dual D-type in a 14-SOIC footprint, this part is a safe long-term selection — no last-time-buy planning required.