Philips Semiconductors
74HC244; 74HCT244
Octal buffer/line driver; 3-state
Table 7:
Static characteristics 74HC244
…continued
At recommended operating conditions; voltages are referenced to GND (ground = 0V).
Symbol
V
IH
Parameter
HIGH-state input voltage
Conditions
V
CC
= 2.0 V
V
CC
= 4.5 V
V
CC
= 6.0 V
V
IL
LOW-state input voltage
V
CC
= 2.0 V
V
CC
= 4.5 V
V
CC
= 6.0 V
V
OH
HIGH-state output voltage
V
I
= V
IH
or V
IL
I
O
=
−20 µA;
V
CC
= 2.0 V
I
O
=
−20 µA;
V
CC
= 4.5 V
I
O
=
−20 µA;
V
CC
= 6.0 V
I
O
=
−6.0
mA; V
CC
= 4.5 V
I
O
=
−7.8
mA; V
CC
= 6 V
V
OL
LOW-state output voltage
V
I
= V
IH
or V
IL
I
O
= 20
µA;
V
CC
= 2.0 V
I
O
= 20
µA;
V
CC
= 4.5 V
I
O
= 20
µA;
V
CC
= 6.0 V
I
O
= 6.0 mA; V
CC
= 4.5 V
I
O
= 7.8 mA; V
CC
= 6 V
I
LI
I
OZ
I
CC
input leakage current
OFF-state output current
quiescent supply current
V
I
= V
CC
or GND; V
CC
= 6 V
V
I
= V
IH
or V
IL
; V
O
= V
CC
or GND
V
I
= V
CC
or GND; I
O
= 0 A;
V
CC
= 6.0 V
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
0.1
0.1
0.1
0.4
0.4
±1.0
±10.0
160
V
V
V
V
V
µA
µA
µA
1.9
4.4
5.9
3.7
5.2
-
-
-
-
-
-
-
-
-
-
V
V
V
V
V
Min
1.5
3.15
4.2
-
-
-
Typ
-
-
-
-
-
-
Max
-
-
-
0.5
1.35
1.8
Unit
V
V
V
V
V
V
T
amb
=
−40 °C
to +125
°C
Table 8:
Static characteristics 74HCT244
At recommended operating conditions; voltages are referenced to GND (ground = 0 V).
Symbol
V
IH
V
IL
V
OH
Parameter
HIGH-state input voltage
LOW-state input voltage
HIGH-state output voltage
Conditions
V
CC
= 4.5 V to 5.5 V
V
CC
= 4.5 V to 5.5 V
V
I
= V
IH
or V
IL
; V
CC
= 4.5 V
I
O
=
−20 µA
I
O
=
−6.0
mA
V
OL
LOW-state output voltage
V
I
= V
IH
or V
IL
; V
CC
= 4.5 V
I
O
= 20
µA
I
O
= 6.0 mA
I
LI
I
OZ
input leakage current
OFF-state output current
V
I
= V
CC
or GND; V
CC
= 5.5 V
per input pin; V
I
= V
IH
or V
IL
;
V
O
= V
CC
or GND; other pins at GND
or V
CC
; I
O
= 0 A; V
CC
= 5.5 V
V
I
= V
CC
or GND; I
O
= 0 A;
V
CC
= 5.5 V
Rev. 03 — 22 December 2005
Min
2.0
-
4.4
3.98
-
-
-
-
Typ
1.6
1.2
4.5
4.32
0
0.16
-
-
Max
-
0.8
-
-
0.1
0.26
±0.1
±0.5
Unit
V
V
V
V
V
V
µA
µA
T
amb
= 25
°C
I
CC
74HC_HCT244_3
quiescent supply current
-
-
8.0
µA
© Koninklijke Philips Electronics N.V. 2005. All rights reserved.
Product data sheet
8 of 22
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