English
Language : 

CD74HC27 Datasheet, PDF (3/7 Pages) Texas Instruments – High Speed CMOS Logic Triple 3-Input NOR Gate
CD74HC27, CD74HCT27
Absolute Maximum Ratings
DC Supply Voltage, VCC . . . . . . . . . . . . . . . . . . . . . . . . -0.5V to 7V
DC Input Diode Current, IIK
For VI < -0.5V or VI > VCC + 0.5V . . . . . . . . . . . . . . . . . . . . . .±20mA
DC Output Diode Current, IOK
For VO < -0.5V or VO > VCC + 0.5V . . . . . . . . . . . . . . . . . . . .±20mA
DC Output Source or Sink Current per Output Pin, IO
For VO > -0.5V or VO < VCC + 0.5V . . . . . . . . . . . . . . . . . . . .±25mA
DC VCC or Ground Current, ICC or IGND . . . . . . . . . . . . . . . . . .±50mA
Thermal Information
Thermal Resistance (Typical, Note 3)
θJA (oC/W)
PDIP Package . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
100
SOIC Package . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
180
Maximum Junction Temperature . . . . . . . . . . . . . . . . . . . . . . . 150oC
Maximum Storage Temperature Range . . . . . . . . . .-65oC to 150oC
Maximum Lead Temperature (Soldering 10s) . . . . . . . . . . . . . 300oC
(SOIC - Lead Tips Only)
Operating Conditions
Temperature Range (TA) . . . . . . . . . . . . . . . . . . . . . -55oC to 125oC
Supply Voltage Range, VCC
HC Types . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2V to 6V
HCT Types . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4.5V to 5.5V
DC Input or Output Voltage, VI, VO . . . . . . . . . . . . . . . . . 0V to VCC
Input Rise and Fall Time
2V . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1000ns (Max)
4.5V. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 500ns (Max)
6V . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 400ns (Max)
CAUTION: Stresses above those listed in “Absolute Maximum Ratings” may cause permanent damage to the device. This is a stress only rating and operation
of the device at these or any other conditions above those indicated in the operational sections of this specification is not implied.
NOTE:
3. θJA is measured with the component mounted on an evaluation PC board in free air.
DC Electrical Specifications
PARAMETER
HC TYPES
High Level Input
Voltage
Low Level Input
Voltage
High Level Output
Voltage
CMOS Loads
High Level Output
Voltage
TTL Loads
Low Level Output
Voltage
CMOS Loads
Low Level Output
Voltage
TTL Loads
Input Leakage
Current
SYMBOL
TEST
CONDITIONS
25oC
VI (V) IO (mA) VCC (V) MIN TYP MAX
VIH
-
-
VIL
-
-
VOH
VOL
II
VIH or
VIL
VIH or
VIL
VCC or
GND
-0.02
-0.02
-0.02
-
-4
-5.2
0.02
0.02
0.02
-
4
5.2
-
2
1.5 -
-
4.5 3.15 -
-
6
4.2 -
-
2
-
- 0.5
4.5
-
- 1.35
6
-
- 1.8
2
1.9 -
-
4.5 4.4 -
-
6
5.9 -
-
-
-
-
-
4.5 3.98 -
-
6
5.48 -
-
2
-
- 0.1
4.5
-
- 0.1
6
-
- 0.1
-
-
-
-
4.5
-
- 0.26
6
-
- 0.26
6
-
- ±0.1
-40oC TO 85oC
MIN MAX
1.5
-
3.15
-
4.2
-
-
0.5
-
1.35
-
1.8
1.9
-
4.4
-
5.9
-
-
-
3.84
-
5.34
-
-
0.1
-
0.1
-
0.1
-
-
-
0.33
-
0.33
-
±1
-55oC TO 125oC
MIN MAX UNITS
1.5
-
V
3.15
-
V
4.2
-
V
-
0.5
V
-
1.35
V
-
1.8
V
1.9
-
V
4.4
-
V
5.9
-
V
-
-
V
3.7
-
V
5.2
-
V
-
0.1
V
-
0.1
V
-
0.1
V
-
-
V
-
0.4
V
-
0.4
V
-
±1
µA
3