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MOTOROLA
SEMICONDUCTOR TECHNICAL DATA
Triple 4-3-3-Input Bus Driver
The MC10H123 is a triple 4–3–3–Input Bus Driver. The MC10H123 consists of three NOR gates designed for bus driving applications on card or between cards. Output low logic levels are specified with VOL = –2.1 Vdc so that the bus may be terminated to –2.0 Vdc. The gate output, when low, appears as a high impedance to the bus, because the output emitter–followers of the MC10H123 are “turned–off.” This eliminates discontinuities in the characteristic impedance of the bus. The VOH level is specified when driving a 25–ohm load terminated to –2.0 Vdc, the equivalent of a 50–ohm bus terminated at both ends.