Dual 8-bit register for mixed-voltage buses
The Texas Instruments SN74LVCH16374ADGG is a dual 8-bit D-type flip-flop with tri-state outputs, positive-edge triggered, in a 48-TSSOP package. It belongs to the 74LVCH family and operates across a 1.65 V to 3.6 V supply range.
Clock frequency and propagation delay — timing budget
Rated at 150 MHz clock frequency, this register meets the timing needs of DDR memory controllers and high-speed parallel buses. The 4.5 ns max propagation delay at 3.3 V with 50 pF load gives the designer a clear window for setup-and-hold closure on the receiving side.
Output drive and quiescent current
Each output can source or sink 24 mA, symmetrical. Quiescent current sits at 20 µA, keeping standby power low in battery-backed or always-on subsystems. Input capacitance is 5 pF, light enough to not load the driving bus excessively.
Temperature grade and environment
Rated for -40°C to 125°C operating temperature, this part suits industrial motor drives, outdoor telecom base stations, and automotive under-hood modules where ambient heat exceeds standard commercial limits. The 48-TSSOP footprint is common on multi-layer boards; the 0.240" body width fits standard SOIC-width land patterns.
Lifecycle and compliance
ROHS3 compliant — no exemption expiry concern for EU or global markets.