74HC/HCT182 View Datasheet(PDF) - Philips Electronics
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74HC/HCT182 Datasheet PDF : 9 Pages
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Philips Semiconductors
Look-ahead carry generator
Product specification
74HC/HCT182
DC CHARACTERISTICS FOR 74HCT
For the DC characteristics see “74HC/HCT/HCU/HCMOS Logic Family Specifications”.
Output capability: standard
ICC category: MSI
Note to HCT types
The value of additional quiescent supply current (∆ICC) for a unit load of 1 is given in the family specifications.
To determine ∆ICC per input, multiply this value by the unit load coefficient shown in the table below.
INPUT
G0, G1, P0, P1, P2
G3
G2, P3, Cn
UNIT LOAD COEFFICIENT
1.50
0.30
1.25
AC CHARACTERISTICS FOR 74HCT
GND = 0 V; tr = tf = 6 ns; CL = 50 pF
Tamb (°C)
SYMBOL PARAMETER
74HCT
+25
−40 to +85
min. typ. max. min. max.
tPHL/ tPLH propagation delay
Pn to P
17 28
35
tPHL/ tPLH propagation delay
Cn to any output
26 43
54
tPHL/ tPLH propagation delay
Pn to G
20 33
41
tPHL/ tPLH propagation delay
Pn to Cn+n
20 33
41
tPHL/ tPLH propagation delay
18 32
40
Gn to Cn+n, Gn to G
tTHL/ tTLH output transition time
7 15
19
TEST CONDITIONS
−40 to +125
UNIT
VCC
(V)
min. max.
WAVEFORMS
42 ns 4.5 Fig.6
65 ns 4.5 Fig.6
50 ns 4.5 Fig.6
50 ns 4.5 Fig.6
48 ns 4.5 Fig.6
22 ns 4.5 Fig.6
December 1990
7
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