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DM74S240 • DM74S241 • DM74S244
Absolute Maximum Ratings(Note 1)
Note 1: The “Absolute Maximum Ratings” are those values beyond which
the safety of the device cannot be guaranteed. The device should not be
operated at these limits. The parametric values defined in the Electrical
Characteristics tables are not guaranteed at the absolute maximum ratings.
The “Recommended Operating Conditions” table will define the conditions
for actual device operation.
Recommended Operating Conditions
Electrical Characteristics
over recommended operating free-air temperature range (unless otherwise noted)
Note 2: All typical values are at V
CC
= 5V, T
A
= 25°C.
Note 3: Not more than one output should be shorted at a time and duration should not exceed one second.
Supply Voltage 7V
Input Voltage 5.5V
Operating Free Air Temperature Range 0°C to +70°C
Storage Temperature Range −65°C to +150°C
Symbol Parameter Min Typ Max Units
V
CC
Supply Voltage 4.75 5 5.25 V
V
IH
HIGH Level Input Voltage 2 V
V
IL
LOW Level Input Voltage 0.8 V
I
OH
HIGH Level Output Current −15 mA
I
OL
LOW Level Output Current 64 mA
T
A
Free Air Operating Temperature 0 70 °C
Symbol Parameter Conditions Min
Typ
Max Units
(Note 2)
V
I
Input Clamp Voltage V
CC
= Min, I
I
= −18 mA −1.2 V
H
ys
Hysteresis (V
T+
− V
T−
)V
CC
= Min 0.2 0.4 V
(Data Inputs Only)
V
OH
HIGH Level V
CC
= 4.75V, V
IH
= 2V
2.7
V
Output Voltage V
IL
= 0.8V, I
OH
= −1 mA
V
CC
= Min, V
IH
= 2V
2.4 3.4
V
IL
= 0.8V, I
OH
= −3 mA
V
CC
= Min, V
IH
= 2V
2
V
IL
= 0.5V, I
OH
= Max
V
OL
LOW Level V
CC
= Min I
OL
= Max
0.55 V
Output Voltage V
IL
= 0.8V, V
IH
= 2V
I
OZH
Off-State Output Current, V
CC
= Max V
O
= 2.4V
50 µA
HIGH Level Voltage Applied V
IL
= 0.8V
I
OZL
Off-State Output Current, V
IH
= 2V V
O
= 0.5V
−50 µA
LOW Level Voltage Applied
I
I
Input Current at Maximum V
CC
= Max V
I
= 5.5V 1 mA
Input Voltage
I
IH
HIGH Level Input Current V
CC
= Max V
I
= 2.7V 50 µA
I
IL
LOW Level Input Current V
CC
= Max V
I
= 0.5V Any A −400 µA
Any G −2mA
I
OS
Short Circuit Output Current V
CC
= Max (Note 3) −50 −225 mA
I
CC
Supply Outputs HIGH DM74S240 80 135
mA
Current DM74S241, DM74244 95 160
Outputs LOW DM74S240 100 150
DM74S241, DM74244 120 180
Outputs Disabled DM74S240 100 150
DM74S241, DM74S244 120 180
