8-bit bidirectional bus transceiver in a 20-pin DIP
It provides bidirectional data flow between two buses (A and B ports) controlled by direction and output-enable pins. Housed in a 20-pin DIP (0.300" body) for through-hole assembly, it suits legacy backplanes, industrial control panels, and prototyping where socketed or hand-solderable logic is preferred.
No derating is needed for the full military temp band, but junction temperature still governs long-term reliability at the upper end.
Output drive and 3-state control
Each of the eight I/O lines can sink or source 24 mA (both high and low), enough to drive a standard TTL load, a logic input fan-out of ten, or a small LED through a series resistor. The 3-state outputs let multiple transceivers share a common data bus without contention — the output-enable pin disables all drivers, placing the outputs in high-impedance. This is the standard bus-interface pattern for backplanes and memory-mapped I/O.
Lifecycle and compliance
No PCN or LTB has been issued for this specific order code as of the latest available data.