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74HC126 Datasheet, PDF (5/6 Pages) NXP Semiconductors – Quad buffer/line driver; 3-state | |||
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Philips Semiconductors
Quad buffer/line driver; 3-state
Product speciï¬cation
74HC/HCT126
DC CHARACTERISTICS FOR 74HCT
For the DC characteristics see â74HC/HCT/HCU/HCMOS Logic Family Specificationsâ.
Output capability: bus driver
ICC category: MSI
Note to HCT types
The value of additional quiescent supply current (âICC) for a unit load of 1 is given in the family specifications.
To determine âICC per unit, multiply this value by the unit load coefficient shown in the table below.
INPUT
nA, nOE
UNIT LOAD COEFFICIENT
1.00
AC CHARACTERISTICS FOR 74HCT
GND = 0 V; tr = tf = 6 ns; CL = 50 pF
Tamb (°C)
SYMBOL PARAMETER
74HCT
+25
â40 to +85
min. typ. max. min. max.
tPHL/ tPLH propagation delay
14 24
30
nA to nY
tPZH/ tPZL
3-state output
enable time
nOE to nY
13 25
31
tPHZ/ tPLZ
3-state output
disable time
nOE to nY
18 28
35
tTHL/ tTLH output transition
5 12
15
time
â40 to +125
min. max.
36
38
42
18
UNIT
ns
ns
ns
ns
TEST CONDITIONS
VCC WAVEFORMS
(V)
4.5 Fig.6
4.5 Fig.7
4.5 Fig.7
4.5 Fig.6
December 1990
5
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