CD54HC173 and CD54HCT173 are high speed three-state quad D-type flip-flops fabricated with silicon gate CMOS technol- ogy. They possess the low power consumption of standard CMOS Integrated circuits, and can operate at speeds com- parable to the equivalent low power Schottky devices. The buffered outputs can drive 15 LSTTL loads. The large output drive capability and three-state feature make these parts ide- ally suited for interfacing with bus lines in bus oriented sys- tems.
The CD54HC173, CD74HC173, CD54HCT173 and CD74HCT173 are high‑speed CMOS quad D‑type flip‑flops with three‑state buffered outputs. They operate over a wide temperature range and provide low power consumption while delivering up to 15 LSTTL loads, making them suitable for bus‑oriented systems.
The datasheet includes functional diagrams, pinouts for various packages (PDIP, SOIC, SOP, TSSOP), absolute maximum ratings, electrical specifications, switching performance, and mechanical dimensions. Ordering information and handling cautions are also provided.
| Operating Temperature Range | -55°C to 125°C |
|---|---|
| Supply Voltage Range (HC types) | 2 V to 6 V |
| Supply Voltage Range (HCT types) | 4.5 V to 5.5 V |
| Maximum Output Load | 15 LSTTL loads |
| Package Options | 16‑lead PDIP, SOIC, SOP, TSSOP |
The buffered outputs can drive up to 15 LSTTL loads.
They operate from –55 °C up to 125 °C.
The devices are sensitive to electrostatic discharge and should be handled according to proper IC handling procedures.