DMOS outputs drive loads a standard logic latch cannot
The TPIC6B259N is an 8-bit addressable latch from Texas Instruments' TPIC series, combining a D-Type addressable latch with DMOS output transistors. This means each of the eight outputs can sink or source current to drive loads like relays, solenoids, or indicator LEDs directly, without an external driver stage. The DMOS output type is the key differentiator from a standard logic latch — it provides the current handling needed for industrial and automotive loads, while the latch itself handles the addressing and storage.
Supply voltage and timing for the control bus
The 150 ns propagation delay sets the maximum addressing rate — for a typical microcontroller bus cycle at 10 MHz, the latch can be written within one wait state. The single independent circuit means all eight bits share the same address and enable controls. The 8:8 circuit notation confirms eight data inputs map to eight latched outputs.
Industrial temperature range and through-hole package
The 20-pin DIP package (0.300" width) is through-hole, compatible with socketed prototyping or wave-solder assembly. Supplier device package is 20-PDIP; the tube packaging is typical for through-hole ICs ordered in production quantities.