What the 2:2 circuit and differential output mean for your design
The CD74HC75PWT is a dual 2-bit transparent latch — two independent latches, each holding two bits, with the latch enable per pair. When the enable is high, the outputs follow the inputs; when it goes low, the last data is frozen. The differential output (true and complement per channel) means you get both Q and /Q from each latch cell without external inverters — useful for driving differential signal chains or generating complementary control lines from a single data source. Propagation delay is 10 ns typical across the 2 V to 6 V supply range. At 5 V the 74HC family switches in the low-nanosecond range, but the 10 ns figure is the spec to budget for setup-hold timing in a synchronous bus. The output drive is 5.2 mA source and sink — enough for CMOS inputs on the same board, but not for driving long traces or multiple fan-out without buffering.
