DESCRIPTION
PIN N° SYMBOL NAME AND FUNCTION 1, 2, 3 4, 5 6 15, 14, 13, 12, 11, 10, 9, 7 8 16 A, B, C G2A, G2B G1 Y0 to Y7 Address Inputs Enable Inputs Enable Input Outputs GND VCC Ground (0V) Positive Supply Voltage t(s)Table 3: Truth Table cINPUTS duENABLE SELECT roG2B G2A G1 C B A PX X L X X X teX H X X X X leH X X X X X oL L H L L L bsL L H L L H OL L H L H L -L L H L H H )L L H H L L t(sL L H H L H cL L H H H L uL L H H H H rodX : Don’t care Obsolete PFigure 3: Logic Diagram OUTPUTS Y0 Y1 Y2 Y3 Y4 Y5 Y6 Y7 HHHHHHHH HHHHHHHH HHHHHHHH L HHHHHHH H L HHHHHH HH L HHHHH HHH L HHHH HHHH L HHH HHHHH L HH HHHHHH L H HHHHHHH L This logic diagram has not be used to estimate propagation delays 2/12 74VHC138 Table 4: ABSOLUTE MAXIMUM RATINGS
Symbol Parameter Value Unit VCC Supply Voltage -0.5 to +7.0 V VI DC Input Voltage -0.5 to +7.0 V VO DC Output Voltage -0.5 to VCC + 0.5 V IIK DC Input Diode Current - 20 mA IOK DC Output Diode Current ± 20 mA IO DC Output Current ± 25 mA ICC or IGND DC VCC...
STMicroelectronics
