MC10123

MC10123 Triple 4-3-3-Input Bus Driver The MC10123 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 MC10123 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. Although 25 ohms is the lowest characteristic impedance that can be driven by the MC10123, higher impedance values may be used with this part. A typical 50–ohm bus is shown in Figure 1. PD = 310 mW typ/pkg (No Load) tpd = 3.0 ns typ tr, tf = 2.5 ns typ (20%–80%) DIP PIN ASSIGNMENT VCC1 BOUT AOUT AIN AIN AIN AIN VEE 1 2 3 4 5 6 7 8 16 15 14 13 12 11 10 9 VCC2 COUT CIN CIN CIN BIN BIN BIN www.DataSheet4U.com http://onsemi.com MARKING DIAGRAMS 16 CDIP–16 L SUFFIX CASE 620 1 16 PDIP–16 P SUFFIX CASE 648 1 1 PLCC–20 FN SUFFIX CASE 775 10123 AWLYYWW MC10123P AWLYYWW MC10123L AWLYYWW A WL YY WW = Assembly Location = Wafer Lot = Year = Work Week ORDERING INFORMATION Device MC10123L MC10123P Package CDIP–16 PDIP–16 PLCC–20 Shipping 25 Units / Rail 25 Units / Rail 46 Units / Rail Pin assignment is for Dual–in–Line Package. For PLCC pin assignment, see the Pin Conversion Tables on page 18 of ...