ITT - Index of

ITT54182, ITT74182
LOOK-AHEAD CARRY GENERATOR
PIN DESIGNATIONS
DESIGNATION PIN NOS. FUNCTION
GO. Gl. G2. G3 3. 1. 14.5 ACTIVE-LOW
CARRY GENERATE INPUTS
PO. Pl.P2.P3 4.2.15.6 ACTIVE-LOW
CARRY PROPAGATE INPUTS
Cn 13 CARRY INPUT
Cn+x. Cn+y. 12. 11. 9 CARRY OUTPUTS
Cn+z
G 10 ACTIVE-LOW
CARRY GENERATE OUTPUT
P 7 ACTIVE-LOW
CARRY PROPAGATE OUTPUT
VCC 16 SUPPLYVOLTAGE
GND S GROUND
recommended operating conditions
ITT54182
ITT74182
MIN NOM MAX MIN NOM MAX UNIT
Supply voltage Vee 4.5 5 5.5 4.75 5 5.25 V
Normalized fan-out from each I High logic level 20 20
output, N I Low logic level 10 10
Operating free-air temperature range. T A -55 25 125 0 25 70 °c
EI..ECTR ICAl 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
VR Input Clamp Voltage -1.5 V VCC = MIN.Ii = -12mA
VOH High-level output voltage 2.4 V VCC = MIN. VIH = 2V.
VIL = O.SV.IOH = -SOOuA
VOL Low-level output voltage 0.4 V VCC = MIN. VIH = 2V.
VIL = O.SV. IOL = 16 mA
IIH High-level input current (Cn SO uA VCC = MAX. VI = 2.4V
input)
IIH High-level input current (P3 120 uA Vee = MAX. VI = 2.4V
input)
IIH High-level input current (P2 160 uA Vee = MAX. VI = 2.4V
input)
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