ITT - Index of

CIRCUIT TYPES ITT54H74, ITT74H74
DUAL D-TYPE EDGE-TRIGGERED FLIP-FLOPS
These circuits are fully compatible for use with
most TTL or DTL circuits. Input clamping diodes
are provided to minimize transmission line effects
and thereby simplify systems design. A full fan-out
to 10 normalized Series 54H17 4H loads is available
from each of the outputs in the low-level condition.
In the high-level state. a fan-out of 20 is available
to facilitate tying unused inputs to used inputs.
Maximum clock frequency is 35 megahertz. with
a typical power dissipation of 75 milliwatts per flipflop.
The ITT54H74 is characterized for operation over
the full military temperature range of -55°C to
125°C; the ITT74H74 is characterized for operation
from OOCto 70°C.
ELECTRICAL CHARACTERISTICS over recommended operating free-air temperature range
(unless otherwise noted)
Parameter Min Typ 1 Max Unit Test Conditions 2
VIH High-level input voltage 2 V
VIL Low-level input voltage O.S V
VL Input elamp Voltage -1.5 V Vee = MIN. Ii = -S mA
VOH High-level output voltage 2.4 3.5 V Vee = MIN.IOH = -1 mA
VOL Low-level output voltage 0.22 004 V Vee = MIN.IOL = 20 mA
IIH High-level input current into D 50 uA Vee = MAX. VI = 2AV
1 mA Vee = MAX. VI = 5.5V
IIH High-level input current into 100 uA Vee = MAX. VI = 2.4V
preset or clock
1 mA Vee = MAX. VI = 5.5V
IIH High-level input current into 150 uA Vee = MAX. VI = 2.4V
clear
1 mA Vee = MAX. VI = 5.5V
IlL Low-level input current into -2 mA Vee = MAX. VI = O.4V
preset or D
IlL Low-level input current into -4 mA Vee = MAX. VI = O.4V
clear or clock
lOS Short-circuit output current 3 -40 -100 mA Vee = MAX
lee Supply current 30 42 mA Vee = MAX ITT54H7 4
30 50 ITT74H7 4
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. and duration of short-circuit test should not exceed 1 second.
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