ITT - Index of

ITT5493, ITT7493
4-BIT BINARY COUNTERS
ELECTR ICAl CHARACTER ISTICS over recommended operating free-air temperature range
(unless otherwise noted)
Parameter Min Typ1, Max Unit Test Conditions 2
Vin(1) Inputvoltage required to ensure 2 V
logical 1 at any input term inal
Vin(O) Input voltage required to ensure 0.8 V
logical 0 at any input terminal
V1 Input Clamp Voltage -1.5 V Vee = MIN. Ii = -12mA
Vout(1) Logical 1 output voltage 204 V Vee = MIN. Iload =-400uA
Vout(OI Logical 0 output voltage 0.4 V Vee = MIN.lsink = 16mA
lin(1) Logical .1 level input current at 40 uA Vee = MAX. Vin = 204V
ROn) or RO(2) inputs
1 mA Vee = MAX. Vin = 5.5V
lili( 1 ) Logical 1 level input current at 80 uA Vee = MAX. Vin = 204V
A or B inputs
1 mA Vee = MAX. Vin = 5.5V
'in(O) LogicalO level input current at -1.6 mA Vee = MAX. Vin = 0.4V
RO(1 ) or. Rom inputs
lin(OI Logical 0 level input current at -3.2 mA Vee = MAX. Vin = Oo4V
A or B inputs
lOS Short-circuit output cUHent 3 -20 -57 mA Vee = MAX. ITT5493
-18 -57 mA
Vout = 0
ITT7493
ICC Supply current 32 46 mA Vee = MAX. ITT5493
32 53 mA
Vin = 4.5V
ITT7493
SWITCHING CHARACTERISTICS. Vee = 5V. TA = 25°e. N = 10
Parameter Min T.yp Max Unit Test Conditions
fmax Maximum frequency of input 10 18 MHz eL = 15pF.RL =400n
count pulses
tpd1 Propagation delay time to logical 75 135 ns. eL = 15pF.RL =400.0
:·1 level froin input count pulse to
, .... output 0
tpdO Propagation delay time to logical 75 135 ns eL = 15 pF. RL = 400n
o levelfrcim input count pulse to
output 0
'.
1 All tYpicalvaluesare at Vee = 5V. TA == 25°C.
2 ForconditioriS shoyvn as MIN or MAX. use the appropriate value specified under recommended operating conditions
for the applicable circuit type.
3 Not mOre than one output should be shorted at a time.
3-134