DESCRIPTION
PIN No 1 2, 3, 4, 5, 6, 7, 8, 9 18, 17, 16, 15, 14, 13, 12, 11 19 10 20 SYMBOL DIR A1 to A8 NAME AND FUNCTION Directional Control Data Inputs/Outputs B1 to B8 Data Inputs/Outputs G GND VCC Output Enable Input Ground (0V) Positive Supply Voltage TRUTH TABLE INPUTS )G t(sL cL uH dX : Don’t Care roZ : High Impedance DIR L H X FUNCTION A BUS OUTPUT INPUT Z B BUS INPUT OUTPUT Z OUTPUT Yn A=B B=A Z PABSOLUTE MAXIMUM RATINGS
leteSymbol Parameter Value Unit oVCC Supply Voltage -0.5 to +7 V bsVI DC Input Voltage -0.5 to VCC + 0.5 V OVO DC Output Voltage -0.5 to VCC + 0.5 V -IIK DC Input Diode Current ± 20 mA t(s)IOK DC Output Diode Current ± 20 mA IO DC Output Current ± 50 mA ucICC or IGND DC VCC or Ground Current ± 400 mA dTstg Storage Temperature -65 to +150 °C roTL Lead Temperature (10 sec) 300 °C PAbsolute MAXIMUM RATINGS
are those values beyond which damage to the device may occur. Functional operation under these conditions is not implied. leteRECOMMENDED OPERATING CONDITIONS...
STMicroelectronics
