HD74AC138/HD74ACT138
Recommended Operating Conditions: HD74AC138
Item
Symbol
VCC
Ratings
Unit
Condition
Supply voltage
2 to 6
V
Input and output voltage
Operating temperature
VI, VO
Ta
0 to VCC
–40 to +85
8
V
°C
Input rise and fall time
(except Schmitt inputs)
tr, tf
ns/V
VCC = 3.0V
VCC = 4.5 V
VCC = 5.5 V
VIN 30% to 70% VCC
DC Characteristics: HD74AC138
Item
Sym-
bol
Vcc
(V)
Ta = 25°C
Ta = –40 to
+85°C
min. max.
Unit
Condition
min.
2.1
3.15
3.85
—
typ.
1.5
max.
—
Input Voltage
VIH
VIL
3.0
2.1
3.15
3.85
—
—
V
VOUT = 0.1 V or VCC –0.1 V
VOUT = 0.1 V or VCC –0.1 V
4.5
5.5
3.0
4.5
5.5
3.0
4.5
5.5
3.0
4.5
5.5
3.0
4.5
5.5
3.0
4.5
5.5
5.5
2.25
2.75
1.50
2.25
2.75
2.99
4.49
5.49
—
—
—
—
—
0.9
1.35
1.65
—
0.9
1.35
1.65
—
—
—
—
—
Output voltage
VOH
2.9
4.4
5.4
2.58
3.94
4.94
—
2.9
4.4
5.4
2.48
3.80
4.80
—
V
VIN = VIL or VIH
IOUT = –50 µA
—
—
—
—
—
—
VIN = VIL or VIH
IOH = –12 mA
—
—
—
IOH = –24 mA
IOH = –24 mA
—
—
—
VOL
0.002 0.1
0.001 0.1
0.001 0.1
0.1
0.1
0.1
0.37
0.37
0.37
±1.0
VIN = VIL or VIH
IOUT = 50 µA
—
—
—
—
—
—
—
—
—
0.32
—
VIN = VIL or VIH
IOL = 12 mA
IOL = 24 mA
IOL = 24 mA
—
0.32
0.32
±0.1
—
—
—
Input leakage
current
IIN
—
—
µA
VIN = VCC or GND
Dynamic output
current*
IOLD
IOHD
ICC
5.5
5.5
5.5
—
—
—
—
—
—
—
86
—
—
80
mA
mA
µA
VOLD = 1.1 V
—
–75
—
VOHD = 3.85 V
Quiescent supply
current
8.0
VIN = VCC or ground
*Maximum test duration 2.0 ms, one output loaded at a time.
Recommended Operating Conditions: HD74ACT138
Item
Symbol
VCC
Ratings
Unit
Condition
Supply voltage
2 to 6
V
V
Input and output voltage
Operating temperature
VI, VO
Ta
0 to VCC
–40 to +85
8
°C
ns/V
Input rise and fall time
(except Schmitt inputs)
tr, tf
V
V
CC = 4.5V
CC = 5.5V
VIN 0.8 to 2.0 V
Rev.2.00, Jul.16.2004, page 4 of 9