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M54HC131 M74HC131 3 TO 8 LINE DECODER/LATCH . HIGH SPEED . tPD = 22 ns (TYP.) AT VCC = 5 V LOW POWER DISSIPATION . ICC = 4 µA (MAX.) at TA = 25 °C HIGH NOISE IMMUNITY . VNIH = VNIL = 28 % VCC (MIN.) OUTPUT DRIVE CAPABILITY
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  M54HC131M74HC131 October 1992 3 TO 8 LINE DECODER/LATCH B1R (Plastic Package) ORDER CODES : M54HC131F1R M74HC131M1RM74HC131B1R M74HC131C1R F1R (CeramicPackage) M1R (MicroPackage) C1R (Chip Carrier) PIN CONNECTIONS (topview) NC =No InternalConnection . HIGH SPEEDt PD  = 22 ns(TYP.) AT V CC  = 5 V . LOWPOWER DISSIPATIONI CC  =4  µ A(MAX.) at T A  =25  ° C . HIGH NOISEIMMUNITYVNIH= VNIL= 28 % VCC (MIN.) . OUTPUTDRIVE CAPABILITY10 LSTTLLOADS . SYMMETRICAL OUTPUT IMPEDANCE| I OH  |= I OL  =4 mA (MIN.) . BALANCEDPROPAGATION DELAYSt PLH  =t PHL . WIDE OPERATING VOLTAGE RANGEV CC (OPR)= 2 V to 6V . PIN AND FUNCTION COMPATIBLE WITH54/74LS131The M54/74HC131 is a highspeed CMOS 3 TO 8LINE DECODER/LATCH fabricated in silicon gateC2MOS technology.It has the samehigh speed performance of LSTTLcombined with true CMOSlow power consumption.This deviceis a DECODER/LATCH capable of se-lectingarbitrarilyoneofeightoutputsbythreebinaryinputsA,B, andC, inthis case,the selected outputis at logic”low”.Also, whenENABLE input G1issetlowor ENABLEinputG2is sethigh, selection isinhibited regardlessof otherinput signals and alltheoutputsareathigh.All inputs are equipped with protection circuitsagainst static discharge and transient excess volt-age. DESCRIPTION 1/12  INPUT AND OUTPUT EQUIVALENT CIRCUITTRUTH TABLE INPUTSOUTPUTSCLK ENABLE SELECTG1 G2 C B A Y0 Y1 Y2 Y3 Y4 Y5 Y6 Y7 X X H X X X H H H H H H H HX L X X X X H H H H H H H HH L L L L L H H H H H H HH L L L H H L H H H H H HH L L H L H H L H H H H HH L L H H H H H L H H H HH L H L L H H H H L H H HH L H L H H H H H H L H HH L H H L H H H H H H L HH L H H H H H H H H H H LL H L X X X Outputs corresponding to stored address L: all others H PIN DESCRIPTION PIN No SYMBOL NAME AND FUNCTION 1, 2, 3 A, B, C Data Inputs4 CLK Clock Input (LOW toHIGH, Edge-triggered)5 G2 Enable (Active LOW)6 G1 Enable (Active HIGH)9, 10, 11,12, 13, 14,15, 7Y0, Y1, Y2,Y3, Y4, Y5,Y6, Y7Data Outputs8 GND Ground (0V)16 V CC  Positive Supply Voltage IEC LOGIC SYMBOL M54/M74HC131 2/12  LOGIC DIAGRAMBLOCK DIAGRAM V CC  = 16GND = 8 M54/M74HC131 3/12  ABSOLUTE MAXIMUM RATINGS Symbol Parameter Value Unit V CC  Supply Voltage -0.5 to +7 VV I  DC Input Voltage -0.5 to V CC  + 0.5 VV O  DC Output Voltage -0.5 to V CC  + 0.5 VI IK  DC Input Diode Current  ±  20 mAI OK  DC Output Diode Current  ±  20 mAI O  DC Output Source Sink Current Per Output Pin  ±  25 mAI CC  or I GND  DC V CC  or Ground Current  ±  50 mAP D  Power Dissipation 500 (*) mWT stg  Storage Temperature -65 to +150  o CT L  Lead Temperature (10 sec) 300  o C AbsoluteMaximumRatingsarethosevalues beyondwhichdamage tothedevicemayoccur.Functionaloperationunder theseconditionisnotimplied.(*)500 mW: ≅ 65 o C derateto300mWby 10mW/  o C: 65  o C to85 o C RECOMMENDED OPERATING CONDITIONS Symbol Parameter Value Unit V CC  Supply Voltage 2 to 6 VV I  Input Voltage 0 to V CC  VV O  Output Voltage 0 to V CC  VT op  Operating Temperature:  M54HC  Series M74HC  Series-55 to +125-40 to +85 o C o Ct r , t f  Input Rise and Fall Time V CC  = 2 V 0 to 1000 nsV CC  = 4.5 V 0 to 500V CC  = 6 V 0 to 400 M54/M74HC131 4/12
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