ITT - Index of

ITT54135, ITT54137, ITT74135, ITT74137
QUAD 2-INPUT POSITIVE,
NAND SCHMITT TRIGGER,
HEX INVERTER SCHMITT TRIGGER
ELECTRICAL CHARACTERISTICS over recommended operating free-air temperature range
(unless otherwise noted)
Parameter Min Typ Max Unit Test Conditions
VT+ Positive-going threshold voltage 1.5 1.7 2 V VCC = 5V
VT- Negative-going threshold 0.6 0.9 1.1 V Vce = 5V
voltage
VT+ -VT- Hysteresis 0.4 0.8 V Vce = 5V
VI Input clamp voltage -1.5 V Vee = MIN. II = -12mA
VOH High-level output voltage 2.4 3.3 V Vee = MIN. VI = 0.6V.
10H = -800uA
VOL Low-level output voltage 0.22 0.4 V VCC = MIN. VI = 2V.
10L = 16mA
IT+ 'Input current at positive-going 74 uA Vec = 5V,VI = VT+
threshold
IT- Input current at negative-going 97 uA Vec = 5V,VI = VTthreshold
II Input current at maximum input 100 uA Vce = MAX. VI = 15.0V
voltage
IIH High-level, input current 10 uA Vee = MAX. VI = 2.4V
IlL low-level input current 0.18 mA Vee = MAX. VI = 0.3V
lOS Short-circuit output current 3 -18 -55 mA Vee = MAX
ICCH Supply current 54174135 6 12 mA Vee = MAX. VI = 0
high-level output 54174137
9 18
lecl Supply Current 54174135 22 35 mA Vec = MAX. VI = 4.5V
lo;"'-Ievel output ' 54/74137
33 52
1 All typical values are at Vee = 5V. TA = 25°e
2 -For conditions shown as MIN or MAX. use the appropriate value specified under recommended operating conditions
for the applicable device type.
,3 Not more than one output should be shorted at a time.
SWITCHING CHARACTERISTICS. Vee = 5V. TA = 25°e. N = 10
Parameter Min Typ Max Unit Test Conditions
tplH Propagation delay time. 20 30 ns eL = 15 pF. Rl = 400fl.
low-to-high-Ievel output
tpHl Propagation delay time. 25 37 ns el = 15 pF. Rl = 400n
high-to-Iow-Ievel.output
3-168