IDT54/74FCT821AT/BT/CT, 823/825AT/BT/CT/DT are high-performance CMOS bus interface registers from Integrated Device Technology, Inc., suitable for military and commercial temperature ranges.
This datasheet describes IDT's high‑performance CMOS bus interface registers, including the FCT821, FCT823, and FCT825 families, offered in a variety of packages and temperature grades for commercial and military use.
It provides detailed pin configurations, functional block diagrams, electrical and switching characteristics, power‑supply data, and ordering information for each device variant.
| Input leakage | ≤1 µA (max) |
|---|---|
| Output drive | -15 mA I_OH, 48 mA I_OL |
| Operating temperature | Commercial 0 °C to +70 °C, Military –55 °C to +125 °C |
| VIH (guaranteed) | 2.0 V |
| VIL (guaranteed) | 0.8 V |
The registers operate from 0 °C to +70 °C in commercial grade and from –55 °C to +125 °C in military grade.
Input and output leakage is limited to ≤1 µA (max).
The devices provide high‑drive outputs of –15 mA I_OH and 48 mA I_OL.