ITT - Index of

ITT54121.ITT74121
MONOSTABLE MULTIVIBRATORS
ELECTRICAL CHARACTERISTICS over recommended operating free-air temperature range
(unless otherwise noted)
Parameter Min Typ' Max Unit Test Conditions 2
VT+ Positive-going threshold voltage 1.55 2 V Vee = MIN
at B input
VT- Negative-going threshold O.B 1.35 V Vee = MIN
voltage at B input
V1 Input elamp Voltage -1.5 V Vee = MIN Ii = -12 rnA
Vout(O) Logical 0 output voltage 0.22 0.4 V Vee = MIN.
Isink = 16 mA
Vout(l) Logical 1 output voltage 2.4 3.3 V Vee = MIN.
Iload = -400 uA
lin(O) Logical 0 level input current at -1 -1.6 mA Vee = MAX. Vin = 0.4V
Al or A2
lin(O) Logical 0 level input current at -2 -3.2 mA Vee = MAX. Vin = 0.4V
B
lin(1) Logical 1 level input current at 2 40 uA Vee = MAX. Vin = 2.4V .
AlorA2
0.05 1 mA Vee = MAX. Vin = 5.SV
lin(l) Logical 1 level input current at 4 80 uA Vee = MAX. Vin = 2.4V
B
0.05 1 mA Vee = MAX. Vin = 5.SV
lOS Short circuit output current at a -20 -25 -55 mA Vee = MAX ITT54121
ora"
-18 -25 -55 ITT74121
lee Power supply current in 13 25 mA Vee = MAX
quiescent (unfired) state
lee Power supply current in fired 23 40 mA Vee= MAX
state
SWITCHING CHARACTERISTICS, Vce = 5V. TA = 25°e
Parameter Min Typ Max Unit Test Conditions
tpdl Propagation delay time to logical 15 35 55 ns eL= 15 pF. eT = 80 pF
1 level from B input to a output
tpdl Propagation delay time to logical 25 45 70 ns eL = 15 pF. eT = 80 pF
1 level.from A 1 IA2 inputs to a
output
tpdO Propagation delay time to logical 20 40 65 ns eL = 15 pF. eT = 80 pF
o level from B input to a output
tpdO Propagation delay time to logical 30 50 80 ns eL = 15 pF. eT = 80 pF
o level from A 1 IA2 inputs to a
output
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