DM74S240 View Datasheet(PDF) - Fairchild Semiconductor
Part Name
Description
Manufacturer
DM74S240 Datasheet PDF : 4 Pages
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Absolute Maximum Ratings(Note 1)
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
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
Symbol
Parameter
Min
VCC
Supply Voltage
VIH
HIGH Level Input Voltage
VIL
LOW Level Input Voltage
IOH
HIGH Level Output Current
IOL
LOW Level Output Current
TA
Free Air Operating Temperature
4.75
2
0
Electrical Characteristics
over recommended operating free-air temperature range (unless otherwise noted)
Symbol
Parameter
Conditions
Typ
5
Min
VI
Input Clamp Voltage
VCC = Min, II = −18 mA
Hys
Hysteresis (VT+ − VT−)
VCC = Min
0.2
(Data Inputs Only)
VOH
HIGH Level
VCC = 4.75V, VIH = 2V
2.7
Output Voltage
VIL = 0.8V, IOH = −1 mA
VCC = Min, VIH = 2V
2.4
VIL = 0.8V, IOH = −3 mA
VCC = Min, VIH = 2V
2
VIL = 0.5V, IOH = Max
VOL
LOW Level
VCC = Min IOL = Max
Output Voltage
VIL = 0.8V, VIH = 2V
IOZH
Off-State Output Current,
VCC = Max VO = 2.4V
HIGH Level Voltage Applied VIL = 0.8V
IOZL
Off-State Output Current,
VIH = 2V VO = 0.5V
LOW Level Voltage Applied
II
Input Current at Maximum VCC = Max VI = 5.5V
Input Voltage
IIH
HIGH Level Input Current
VCC = Max VI = 2.7V
IIL
LOW Level Input Current
VCC = Max VI = 0.5V Any A
Any G
IOS
Short Circuit Output Current VCC = Max (Note 3)
−50
ICC
Supply
Outputs HIGH
DM74S240
Current
DM74S241, DM74244
Outputs LOW
DM74S240
DM74S241, DM74244
Outputs Disabled
DM74S240
DM74S241, DM74S244
Note 2: All typical values are at VCC = 5V, TA = 25°C.
Note 3: Not more than one output should be shorted at a time and duration should not exceed one second.
Max
5.25
0.8
−15
64
70
Units
V
V
V
mA
mA
°C
Typ
Max
(Note 2)
−1.2
0.4
Units
V
V
3.4
V
0.55
V
50
µA
−50
µA
1
mA
50
µA
−400
µA
−2
mA
−225
mA
80
135
95
160
100
150
mA
120
180
100
150
120
180
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