1 cmos logic ic elm7s02 b 2 - input nor gate elm7s 0 2 b - el a b c g e neral description ELM7S02B is cmos 2-input nor gate ic. it realizes high speed operation similar to ls-ttl with lower power consumption by cmos features. the inner circuit structure of 3-stage logic gate obtains wider noise immunity and constant output. f eatures applica tion selection guide elm7s 0 2 b- el symbol a function 02 : 2 - input nor gate b product version b c taping d irection el : ref er to pkg file maximum a bsolute ratings parameter symbol limit unit power supply voltage vdd - 0.5 + 7.0 v input voltage vin - 0.5 vdd + 0.5 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 2 5 ma power dissipation pd 200 mw storage temperature tstg - 65 + 150 ? 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 ? same electrical characteristic as 74hc series (output current is around 1/2 of 74hc series) ? low consumption current idd=1.0 a(max.)(top=25 ) ? wide power voltage range 2.0v 6.0v ? high speed tpd=5ns(typ.)(vdd=5.0v) ? symmetrical output impedance | ioh | = i ol = 2ma (min.) (vdd=4.5v) ? small p ackage : sot - 25
2 cmos logic ic ELM7S02B 2 - input nor gate pin con?guration sot - 25 ( top view ) a c e l ectrical characteristics cl =15pf , tr = tf =6ns, v dd =5v cl =50pf , tr = tf =6ns * 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 s uggested operating condition parameter symbol limit unit power voltage vdd 2. 0 6.0 v input voltage vin 0 vdd v output voltage vout 0 vdd v operating temperature top - 40 + 85 high - input down -time tr, tf vdd = 2.0 v 0 1000 ns vdd = 4.5 v 0 500 vdd = 6.0 v 0 4 00 pin no. pin name 1 inb 2 ina 3 gnd 4 outx 5 v dd input output ina inb outx low low high low high low high low low high high low ? ? ? ? ? parameter sym. top=25 unit condition min. typ. max. o utput transition time ttlh 4 10 ns refer to test circuit tt h l 3 10 propagation delay-time t p lh 5 15 ns refer to test circuit t p h l 5 15 parameter sym. vdd top=25 t op=-40 + 85 unit condition min. typ. max. min. max. o utput transition time ttlh 2.0 21 125 155 ns refer to test circuit 4.5 8 25 31 6.0 7 21 26 tthl 2.0 16 125 155 ns 4.5 7 25 31 6.0 6 21 26 propagation delay-time t p l h 2.0 19 100 125 ns refer to test circuit 4.5 8 20 25 6.0 7 17 21 t p h l 2.0 17 100 125 ns 4.5 7 20 25 6.0 6 17 21 input capacity cin 5 10 10 pf equivalent inner capacity cpd 10 pf
3 cmos logic ic ELM7S02B 2 - input nor gate dc e l ectrical characteristics test c ircuit measured wave pattern marking * o utput should be ope ned when measuring current consumption. sot - 25 no. mark content e elm7s series 3 ELM7S02B a z (except i, o, x) lot no. parameter sym. vdd top=25 t op=-40 + 85 unit condition min. typ. max. min. max. input voltage vih 2.0 1.50 1.50 v 4.5 3.15 3.15 6.0 4.20 4.20 vil 2.0 0.50 0.50 v 4.5 1.35 1.35 6.0 1.80 1.80 output voltage voh 2.0 1.90 2.00 1.90 v vin = vil ioh = - 20 a 4.5 4.40 4.50 4.40 6.0 5.90 6.00 5.90 4.5 4.18 4.35 4.13 ioh = - 2ma 6.0 5.68 5.83 5.63 ioh = - 2.6ma vol 2.0 0.00 0.10 0.10 v vin = vih or vil iol = 20 a 4.5 0.00 0.10 0.10 6.0 0.00 0.10 0.10 4.5 0.12 0.26 0.33 iol = 2ma 6.0 0.13 0.26 0.33 iol = 2.6ma input current iin 6.0 - 0.1 0.1 - 1.0 1.0 a vin =vdd or gnd static current idd 6.0 1.0 10.0 a vin =vdd or gnd ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ?
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