| CHARACTERISTICS |
TEST CONDITIONS |
VCC (V) |
AMBIENT TEMPERATURE (TA) -
°C |
UNIT |
| +25 |
-40 to +85 |
-55 to +125 |
| VI (V) |
IO (mA) |
MIN |
MAX |
MIN |
MAX |
MIN |
MAX |
| VIH
|
High-Level Input Voltage |
|
|
4.5 to 5.5 |
2 |
— |
2 |
— |
2 |
— |
V |
| VIL
|
Low-Level Input Voltage |
|
|
4.5 to 5.5 |
— |
0.8 |
— |
0.8 |
— |
0.8 |
V |
| VOH
|
High-Level Output Voltage |
VIH or VIL
|
-0.05 |
4.5 |
4.4 |
— |
4.4 |
— |
4.4 |
— |
V |
| -24 |
4.5 |
3.94 |
— |
3.8 |
— |
3.7 |
— |
|
(1)
,
(2)
|
-75 |
5.5 |
— |
— |
3.85 |
— |
— |
— |
| -50 |
5.5 |
— |
— |
— |
— |
3.85 |
— |
| VOL
|
Low-Level Output Voltage |
VIH or VlL
|
0.05 |
4.5 |
— |
0.1 |
— |
0.1 |
— |
0.1 |
V |
| 24 |
4.5 |
— |
0.36 |
— |
0.44 |
— |
0.5 |
|
(1)
,
(2)
|
75 |
5.5 |
— |
— |
— |
1.65 |
— |
— |
| 50 |
5.5 |
__ |
__ |
— |
— |
— |
1.65 |
| II
|
Input Leakage Current |
VCC or GND |
|
5.5 |
— |
±0.1 |
— |
±1 |
— |
±1 |
μA |
| IOZ
|
3-State Leakage Current |
VIH or VIL VO = VCC
or GND |
|
5.5 |
— |
±0.5 |
— |
±5 |
— |
±10 |
μA |
| ICC
|
Quiescent Supply Current, MSI |
VCC or GND |
0 |
5.5 |
— |
8 |
— |
80 |
— |
160 |
μA |
|
Additional Quiescent Supply Current per Input
Pin |
Vcc-2.1 |
|
4.5 to 5.5 |
— |
2.4 |
— |
2.8 |
— |
3 |
mA |
| ΔICC
|
TTL Inputs High |
|
1 Unit Load |
(1) Test one output at a time for a
1-second maximum duration. Measurement is made by forcing current and measuring
voltage to minimize power dissipation.
(2) Test verifies a minimum 50-ohm
transmission-line-drive capability at +85°C. 75 ohms at +125°C.
Table 4-1 Act Input Loading Tables
| CD54/74ACT240 |
| INPUT |
UNIT LOADS
(1)
|
| nA0 - A3 |
1.42 |
|
10Ε
|
0.83 |
|
20E
|
0.83 |
| CD54/74ACT241 |
| INPUT |
UNIT LOADS
(1)
|
| nA0 - A3 |
0.5 |
|
10E
|
0.83 |
| 20E |
1.67 |
| CD54/74ACT244 |
| INPUT |
UNIT LOADS
(1)
|
| nA0 - A3 |
0.5 |
|
10E
|
0.83 |
|
20E
|
0.83 |
(1) Unit load is ΔICC limit
specified in Static Characteristics Chart, e.g., 2.4 mA max. @ 25°C.