Figure 1-1, 1260-14C Block Diagram - Racal Instruments 1260-14C Manual

User Manual 1260-14C
from the VXIbus supplies.
The output stage of the 1260-14C may sink up to 200mA. The
limitation to this is the power dissipation in the output stages of the
IC. (See Figure 1-3 for the maximum allowable package power
dissipation.) If many 200mA loads are to be driven, they should be
distributed across the module's outputs for improved thermal
management.
It should be noted that there is no tri-state capability on the 1260-
14C. Since the outputs are open collector, they are placed in a
pseudo tri-state by "driving" a 1 on the relevant channel. In this
way, the channels are controlled on a bit-by-bit basis rather than a
byte-by-byte basis as on the standard 1260-14.

Figure 1-1, 1260-14C Block Diagram

Module Specification 1-2
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