MC10H123 Triple 4‐3‐3‐Input Bus Driver Description 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 W load terminated to −2.
0 Vdc, the equivalent of a 50 W bus terminated at both ends.
Although 25 W is the lowest characteristic imp...

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