Datasheet
SCLS109G − MARCH 1984 − REVISED APRIL 2004
5
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
electrical characteristics over recommended operating free-air temperature range (unless
otherwise noted)
PARAMETER
TEST CONDITIONS
V
CC
T
A
= 25°C SN54HC148 SN74HC148
UNIT
PARAMETER
TEST CONDITIONS
V
CC
MIN TYP MAX MIN MAX MIN MAX
UNIT
2 V 1.9 1.998 1.9 1.9
I
OH
= −20 µA
4.5 V 4.4 4.499 4.4 4.4
V
OH
V
I
= V
IH
or V
IL
I
OH
= −20 µA
6 V 5.9 5.999 5.9 5.9
V
V
OH
V
I
= V
IH
or V
IL
I
OH
= −4 mA 4.5 V 3.98 4.3 3.7 3.84
V
I
OH
= −5.2 mA 6 V 5.48 5.8 5.2 5.34
2 V 0.002 0.1 0.1 0.1
I
OL
= 20 µA
4.5 V 0.001 0.1 0.1 0.1
V
OL
V
I
= V
IH
or V
IL
I
OL
= 20 µA
6 V 0.001 0.1 0.1 0.1
V
V
OL
V
I
= V
IH
or V
IL
I
OL
= 4 mA 4.5 V 0.17 0.26 0.4 0.33
V
I
OL
= 5.2 mA 6 V 0.15 0.26 0.4 0.33
I
I
V
I
= V
CC
or 0 6 V ±0.1 ±100 ±1000 ±1000 nA
I
CC
V
I
= V
CC
or 0, I
O
= 0 6 V 8 160 80 µA
C
i
2 V to 6 V 3 10 10 10 pF
switching characteristics over recommended operating free-air temperature range, C
L
= 50 pF
(unless otherwise noted) (see Figure 1)
PARAMETER
FROM
TO
V
CC
T
A
= 25°C SN54HC148 SN74HC148
UNIT
PARAMETER
FROM
(INPUT)
TO
(OUTPUT)
V
CC
MIN TYP MAX MIN MAX MIN MAX
UNIT
2 V 69 180 270 225
1−7 A0, A1, or A2
4.5 V 23 36 54 45
1−7
A0, A1, or A2
6 V 21 31 46 38
2 V 60 150 225 190
EO
4.5 V 20 30 45 38
0−7
EO
6 V 17 26 38 33
0−7
2 V 75 190 285 240
GS
4.5 V 25 38 57 48
t
pd
GS
6 V 21 32 48 41
ns
t
pd
2 V 78 195 295 245
ns
A0, A1, or A2
4.5 V 26 39 59 49
A0, A1, or A2
6 V 22 33 50 42
2 V 57 145 220 180
EI GS
4.5 V 19 29 44 36
EI
GS
6 V 16 25 38 31
2 V 66 165 250 205
EO
4.5 V 22 33 50 41
EO
6 V 19 28 43 35
2 V 28 75 110 95
t
t
Any
4.5 V 8 15 22 19
ns
t
t
Any
6 V 6 13 19 16
ns