MC74LVX240 Octal Bus Buffer Inverting With 5VTolerant Inputs The MC74LVX240 is an advanced high speed CMOS inverting 3state octal bus buffer and has two active low output enables. It is also designed to work with 3state memory address drivers, etc. The MC74LVX240 V 2OE 1O0 2D0 1O1 2D1 1O2 2D2 1O3 2D3 CC 20 19 18 17 16 15 14 13 12 11 PIN NAMES Pins Function 1 2 34567 9 8 10 nOE Output Enable Inputs 1Dn, 2Dn Data Inputs 1OE 1D0 2O0 1D1 2O1 1D2 2O2 1D3 2O3 GND 1On, 2On 3State Outputs Figure 1. 20 Lead Pinout (Top View) 1 19 1OE 2OE FUNCTION TABLE 2 18 17 3 INPUTS OUTPUTS 1D0 1O0 2D0 2O0 1OE, 2OE 1Dn, 2Dn 1On, 2On 4 16 15 5 L L H 1D1 1O1 2D1 2O1 L H L H X Z 6 14 13 7 1D2 1O2 2D2 2O2 8 12 11 9 1D3 1O3 2D3 2O3 Figure 2. Logic Diagram ORDERING INFORMATION Device Package Shipping MC74LVX240DWR2G SOIC20 1000 / Tape & Reel (PbFree) MC74LVX240DTR2G TSSOP20 2500 / Tape & Reel (PbFree) For information on tape and reel specifications, including part orientation and tape sizes, please refer to our Tape and Reel Packaging Specifications Brochure, BRD8011/D.