CMOS LOGIC IC ELM7S14B Schmitt Inverter ■General description ELM7S14B is CMOS schmitt inverter 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. ■Features ・ Same electrical characteristic as 74HC series (output current is around 1/2 of 74HC series) ・ Low voltage operation ： Idd=1.0μA(Max.)(Top=25℃ ) ・ Wide power voltage range ： 2.0V～6.0V ・ High speed ： Tpd=5ns(Typ.)(Vdd=5.0V) ・ Symmetrical output impedance ： | Ioh |=Iol=2mA (Min.)(Vdd=4.5V) ・ Small package : SOT-25 ■Application ・ 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. ・ Modification inside print board, adjustment of timing, solution to noise ■Selection guide ELM7S14B-EL Symbol a Function b c Product version Taping direction 14 : Schmitt inverter B EL : Refer to PKG file ELM7S 1 4 B - EL ↑ ↑ ↑ a b c ■Maximum absolute ratings Parameter Power supply voltage Input voltage Output voltage Input protection diode current Output parasitic diode current Output current VDD/GND current Power dissipation Storage temperature Symbol Vdd Vin Vout Iik Iok Iout Idd, Ignd Pd Tstg Limit -0.5～+7.0 -0.5～Vdd+0.5 -0.5～Vdd+0.5 ±20 ±20 ±25 ±25 200 -65～+150 1 Unit V V V mA mA mA mA mW ℃ CMOS LOGIC IC ELM7S14B Schmitt Inverter ■Suggested operating condition Parameter Power voltage Input voltage Output voltage Operating temperature Symbol Vdd Vin Vout Top High-input down-time tr, tf Limit 2.0～6.0 0～Vdd 0～Vdd -40～+85 Vdd=2.0V Vdd=4.5V Vdd=6.0V Unit V V V ℃ 0～1000 0～500 0～400 ns ■Pin configuration SOT-25 (TOP VIEW) Pin No. 1 2 3 4 5 Pin name NC INY GND OUTX VDD Input INY Low High ■AC electrical characteristics Parameter Output transition time Propagation delay-time Parameter Sym. tTLH tTHL tPLH tPHL Sym. Vdd Output OUTX High Low CL=15pF, tr=tf=6ns, Vdd=5V Min. Top=25℃ Typ. Max. 5 5 7 7 10 10 15 15 Unit Condition ns Refer to test circuit ns Refer to test circuit CL=50pF, tr=tf=6ns Top=-40～+85℃ Top=25℃ Unit Condition Min. Typ. Max. Min. Max. 2.0 4.5 6.0 2.0 4.5 6.0 2.0 4.5 6.0 2.0 4.5 6.0 50 125 155 tTLH 14 25 31 ns 12 21 26 Refer to Output transition time test circuit 50 125 155 tTHL 14 25 31 ns 12 21 26 48 100 125 tPLH 12 20 25 ns 9 17 21 Refer to Propagation delay-time test circuit 48 100 125 tPHL 12 20 25 ns 9 17 21 Input capacity Cin 5 10 10 pF Equivalent inner capacity Cpd 10 pF * 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 calculated as following formula: Idd(opr)=Cpd・Vdd・fin+Idd 2 CMOS LOGIC IC ELM7S14B Schmitt Inverter ■DC electrical characteristics Parameter Sym. Vt＋ Threshold voltage VtHysteresis voltage Vh Voh Output voltage Vol Input current Static current Iin Idd Vdd Min. 2.0 4.5 6.0 2.0 4.5 6.0 2.0 4.5 6.0 2.0 4.5 6.0 4.5 6.0 2.0 4.5 6.0 4.5 6.0 6.0 6.0 Top=25℃ Typ. Max. Top=-40～+85℃ Min. Max. 1.50 3.15 4.20 0.30 0.90 1.20 0.20 0.40 0.60 1.90 4.40 5.90 4.18 5.68 -0.1 1.20 2.25 3.00 2.00 4.50 6.00 4.31 5.80 0.00 0.00 0.00 0.17 0.18 0.10 0.10 0.10 0.26 0.26 0.1 1.0 ■Test circuit 1.50 3.15 4.20 0.30 0.90 1.20 0.20 0.40 0.60 1.90 4.40 5.90 4.13 5.63 ��� Condition V V 1.20 2.25 3.00 V 0.10 0.10 0.10 0.33 0.33 1.0 10.0 -1.0 Ioh=-20μA Vin= Vih or Vil V Ioh=-2mA Ioh=-2.6mA Iol=20μA V Vin=Vih Iol=2mA Iol=2.6mA Vin=Vdd or GND Vin=Vdd or GND μA μA ■Measured wave pattern ��� ����� ����������� Unit ��� ������ ����� ����� ��� ��� ��� ��� ��� ��� ��� ��� ���� ���� ������ �� ��� ��� ��� ���� ��� ���� * Output should be opened when measuring current consumption. ■Marking SOT-25 No. ① ② Mark E A A～Z (except I, O, X) ③ 3 ��� Content ELM7S series ELM7S14B Lot No. ��� ��� ��� ���