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CD74AC191 数据表(PDF) 3 Page - Texas Instruments

部件名 CD74AC191
功能描述  Presettable Synchronous 4-Bit Binary Up/Down Counter
Download  10 Pages
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制造商  TI [Texas Instruments]
网页  http://www.ti.com
标志 TI - Texas Instruments

CD74AC191 数据表(HTML) 3 Page - Texas Instruments

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Absolute Maximum Ratings
Thermal Information
DC Supply Voltage, VCC . . . . . . . . . . . . . . . . . . . . . . . . -0.5V to 6V
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 . . . . . . . . . . . . . . . . . . . .±50mA
DC Output Source or Sink Current per Output Pin, IO
For VO > -0.5V or VO < VCC + 0.5V . . . . . . . . . . . . . . . . . . . .±50mA
DC VCC or Ground Current, ICC or IGND (Note 3) . . . . . . . . .±100mA
Operating Conditions
Temperature Range, TA . . . . . . . . . . . . . . . . . . . . . . -55
oC to 125oC
Supply Voltage Range, VCC (Note 4)
AC Types. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1.5V to 5.5V
ACT Types . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4.5V to 5.5V
DC Input or Output Voltage, VI, VO . . . . . . . . . . . . . . . . . 0V to VCC
Input Rise and Fall Slew Rate, dt/dv
AC Types, 1.5V to 3V . . . . . . . . . . . . . . . . . . . . . . . . . 50ns (Max)
AC Types, 3.6V to 5.5V . . . . . . . . . . . . . . . . . . . . . . . . 20ns (Max)
ACT Types, 4.5V to 5.5V. . . . . . . . . . . . . . . . . . . . . . . 10ns (Max)
Thermal Resistance (Typical, Note 5)
θJA (oC/W)
PDIP Package . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
___
SOIC Package . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
___
Maximum Junction Temperature (Hermetic Package or Die) . . . 175oC
Maximum Storage Temperature Range . . . . . . . . . .-65oC to 150oC
Maximum Lead Temperature (Soldering 10s) . . . . . . . . . . . . . 300oC
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.
NOTES:
3. For up to 4 outputs per device, add
±25mA for each additional output.
4. Unless otherwise specified, all voltages are referenced to ground.
5.
θJA is measured with the component mounted on an evaluation PC board in free air.
DC Electrical Specifications
PARAMETER
SYMBOL
TEST
CONDITIONS
VCC
(V)
25oC
-40oC TO
85oC
-55oC TO
125oC
UNITS
VI (V)
IO (mA)
MIN
MAX
MIN
MAX
MIN
MAX
AC TYPES
High Level Input Voltage
VIH
-
-
1.5
1.2
-
1.2
-
1.2
-
V
3
2.1
-
2.1
-
2.1
-
V
5.5
3.85
-
3.85
-
3.85
-
V
Low Level Input Voltage
VIL
-
-
1.5
-
0.3
-
0.3
-
0.3
V
3
-
0.9
-
0.9
-
0.9
V
5.5
-
1.65
-
1.65
-
1.65
V
High Level Output Voltage
VOH
VIH or VIL
-0.05
1.5
1.4
-
1.4
-
1.4
-
V
-0.05
3
2.9
-
2.9
-
2.9
-
V
-0.05
4.5
4.4
-
4.4
-
4.4
-
V
-4
3
2.58
-
2.48
-
2.4
-
V
-24
4.5
3.94
-
3.8
-
3.7
-
V
-75
(Note 6, 7)
5.5
-
-
3.85
-
-
-
V
-50
(Note 6, 7)
5.5
----
3.85
-
V
CD74AC191, CD74ACT191


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