HIGH SPEED CMOS LOGIC IC
■General description
ELM7SH14xB
Schmitt Inverter
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.
■Features
・ Same electrical characteristic and high speed operation as 74VHC series ・ Low consumption current : Idd=1.0μA(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 package : SOT-25, SSOT-25(SC-88A) ・ Same function and pin configuration as ELM7SxxB
■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 ・ Power voltage change from 5V to 3V
■Selection guide
ELM7SH14xB-EL
Symbol a b c d Function Package Product version Taping direction 14 : Schmitt inverter M : SOT-25 T : SSOT-25(SC-88A) B EL : Refer to PKG file
ELM7SH 1 4 x B - EL ↑ ↑↑ ↑ a bc d
■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~+6.0 -0.5~+6.0 -0.5~Vdd+0.5 -20 ±20 ±25 ±50 150 -65~+150 Unit V V V mA mA mA mA mW ℃
1
HIGH SPEED CMOS LOGIC IC ■Suggested operating condition
Parameter Power voltage Input voltage Output voltage Operating temperature High-input down-time Symbol Vdd Vin Vout Top tr, tf
ELM7SH14xB
Schmitt Inverter
Limit 2.0~5.5 0~5.5 0~Vdd -40~+85 Vdd=3.3±0.3V Vdd=5.0±0.5V
Unit V V V ℃ 0~200 0~100 ns
■Pin configuration
TOP VIEW
Pin No. 1 2 3 4 5 Pin name NC INY GND OUTX VDD Input INY Low High Output OUTX High Low
■DC electrical characteristics
Parameter Sym. Vt+ Threshold voltage VtHysteresis voltage Vdd 3.0 4.5 5.5 3.0 4.5 5.5 3.0 4.5 5.5 2.0 3.0 4.5 3.0 4.5 2.0 3.0 4.5 3.0 4.5 5.5 5.5 Min. Top=25℃ Typ. Max. 2.20 3.15 3.85 Top=-40~+85℃ Min. Max. 2.20 3.15 3.85 0.90 1.35 1.65 0.25 1.20 0.30 1.40 0.35 1.60 1.90 2.90 4.40 2.48 3.80 0.10 0.10 0.10 0.44 0.44 -1.0 1.0 10.0 Unit V Condition
Vh
Voh Output voltage Vol
0.90 1.35 1.65 0.25 0.30 0.35 1.90 2.90 4.40 2.58 3.94
V
1.20 1.40 1.60 2.00 3.00 4.50
V
Ioh=-50μA V Vin=Vil Ioh=-4mA Ioh=-8mA Iol=50μA V Vin=Vih Iol=4mA Iol=8mA Vin=Vdd or GND Vin=Vdd or GND
Input current Static current
Iin Idd
-0.1
0.10 0.10 0.10 0.36 0.36 0.1 1.0
μA μA
2
HIGH SPEED CMOS LOGIC IC ■AC electrical characteristics
Parameter Sym. tPLH tPHL tPLH tPHL tPLH tPHL tPLH tPHL Cin Cpd Vdd 3.3±0.3 3.3±0.3 5.0±0.5 5.0±0.5 5.0 CL 15 50 15 50
ELM7SH14xB
Schmitt Inverter
tr=tf=3ns
Propagation delay-time
Top=25℃ Min. Typ. 2.8 3.1 4.3 4.4 2.1 2.5 3.1 3.4 2.0 10.0
Top=-40~+85℃ Unit Max. Min. Max. 12.8 1.0 15.0 12.8 1.0 15.0 16.3 1.0 18.5 16.3 1.0 18.5 ns 8.6 1.0 10.0 8.6 1.0 10.0 10.6 1.0 12.0 10.6 1.0 12.0 10.0 10.0
Condition
Refer to test circuit
Input capacity Equivalent inner capacity
pF Vin=Vdd or GND pF f=1MHz
* 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
■Test circuit
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■Measured wave pattern
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* Output should be opened when measuring current consumption.
■Marking
SSOT-25 SOT-25
No. ① ② ③ Mark F A A~Z (except I, O, X) Content ELM7SH series ELM7SH14xB Lot No.
3
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