IDT54/74FCT623T/AT/CT is a high-speed CMOS octal bus transceiver with 3-state bus-driving outputs for asynchronous two-way communication between data buses
This document is a technical datasheet for the IDT54/74FCT623T, AT, and CT series of fast CMOS octal bus transceivers. These devices are designed for asynchronous two-way communication between data buses with true TTL input and output compatibility.
Key features include standard, A, and C speed grades; low input and output leakage currents; high drive outputs capable of sinking 64mA and sourcing up to 15mA; and a power-off disable capability that permits live insertion. The transceivers are available in commercial and military temperature ranges across DIP, SOIC, CERPACK, and LCC packages.
| Drive Output Current (Sink) | 64mA |
|---|---|
| Drive Output Current (Source) | 15mA |
| Operating Temperature (Commercial) | 0°C to +70°C |
| Operating Temperature (Military) | -55°C to +125°C |
| Supply Voltage | 5.0V ± 5% (Commercial) |
| Input HIGH Level | 2.0 V |
| Input LOW Level | 0.8 V |
It allows for live insertion and removal of cards in back-plane applications by maintaining high impedance during power supply ramps.
Yes, they feature true TTL input and output compatibility.