1 high speed cmos logic ic ELM7SH14XB schmitt inverter g e neral description f eatures applica tion selection guide elm7sh 1 4x b- el symbol a function 1 4 : s chmitt inverter b package m : sot - 25 t : ssot - 25(sc - 88a) c product version b d taping d irection el : ref er to pkg file maximum a bsolute ratings parameter symbol limit unit power supply voltage vdd - 0.5 + 6 .0 v input voltage vin - 0.5 + 6.0 v output voltage vout - 0.5 vdd + 0.5 v input protection diode current iik - 20 ma output parasitic diode current iok 20 ma output current iout 25 ma v dd /gnd current i dd , ig nd 50 ma power dissipation pd 150 mw storage temperature tstg - 65 + 150 ELM7SH14XB is cmos schmitt inverter which is suitable for battery-operated devices because of its low voltage and ultra high speed operation. the low power consumption contributes to longer battery life, which allows long time operation of devices. the internal circuit which provides high noise immunity and stable output is composed of 3 stages, including buffered output. ? same electrical characteristic and high speed operation as 74vhc series ? low consumption current idd=1.0 a(max.)(top=25 ) ? wide power voltage range 2.0v 5.5v ? wide input voltage range : vih=5.5v (max.)(vdd=0 5.5v) ? high speed tpd=2ns(typ.) (vdd=5.0v) ? small p ackage : sot - 25, ssot - 25(sc-88a) ? same function and pin con?guration as elm7sxxb ? cell phones ? digital cameras ? portable electrical appliances like pda, etc. ? computers and peripherals ? digital electrical appliances like lcd tv sets, dvd recorders/players, stb, etc. ? modi?cation inside print board, adjustment of timing, solution to noise ? power voltage change from 5v to 3v elm7sh 1 4 x b - el a b c d
2 pin con?guration top view dc e l ectrical characteristics s uggested operating condition parameter symbol limit unit power voltage vdd 2. 0 5.5 v input voltage vin 0 5.5 v output voltage vout 0 vdd v operating temperature top - 40 + 85 high - input down -time tr, tf vdd = 3.3 0.3v 0 2 00 ns vdd = 5 . 0 0.5v 0 1 00 pin no. pin name 1 nc 2 iny 3 gnd 4 outx 5 v dd input output iny outx low high high low parameter sym. vdd top=25 top=-40 + 85 unit condition min. typ. max. min. max. threshold voltage v t + 3 .0 2.20 2.20 v 4.5 3.15 3.15 5.5 3.85 3.85 v t - 3 .0 0.90 0.90 v 4.5 1.35 1.35 5.5 1.65 1.65 hysteresis voltage vh 3.0 0.25 1.20 0.25 1.20 v 4.5 0.30 1.40 0.30 1.40 5.5 0.35 1.60 0.35 1.60 output voltage voh 2.0 1.90 2.00 1.90 v vin = vil ioh = - 50 a 3.0 2.90 3.00 2.90 4.5 4.40 4.50 4.40 3.0 2.58 2.48 ioh = - 4 ma 4.5 3.94 3.80 ioh = - 8 ma vol 2.0 0.10 0.10 v vin =vih iol = 5 0 a 3.0 0.10 0.10 4.5 0.10 0.10 3.0 0.36 0.44 iol = 4 ma 4.5 0.36 0.44 iol = 8 ma input current iin 5.5 - 0.1 0.1 - 1.0 1.0 a vin =vdd or gnd static current idd 5.5 1.0 10.0 a vin =vdd or gnd high speed cmos logic ic ELM7SH14XB schmitt i nverter
3 a c e l ectrical characteristics test c ircuit measured wave pattern marking * o utput should be ope ned when measuring current consumption. * cpd is ic's inner equivalent capacity which is calculated from non-loaded operating current consumption referred to test circuit. averaged operating current consumption at non load is cal culated as following formula: idd (opr) =cpd ?vdd ?fin + idd ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? tr = tf =3ns parameter sym. vdd cl top=25 t op=-40 + 85 unit condition min. typ. max. min. max. propagation delay-time tplh 3.3 0.3 15 2.8 12.8 1.0 1 5.0 ns refer to test circuit tphl 3.1 12.8 1.0 1 5.0 tplh 3.3 0.3 50 4.3 16.3 1.0 18.5 tphl 4.4 16.3 1.0 18.5 tplh 5 . 0 0.5 15 2.1 8.6 1.0 10.0 tphl 2.5 8.6 1.0 10.0 tplh 5. 0 0.5 50 3.1 10.6 1.0 12.0 tphl 3.4 10.6 1.0 12.0 input capacity cin 5.0 2.0 10.0 10.0 pf vin = vdd or gnd equivalent inner capacity cpd 10.0 pf f =1mhz ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? sot - 25 no. mark content f elm7sh series a ELM7SH14XB a z ( except i, o, x ) lot no. ssot - 25 high speed cmos logic ic ELM7SH14XB schmitt i nverter
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