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SN74AHC74DBLE Scheda tecnica(PDF) 3 Page - Texas Instruments

Il numero della parte SN74AHC74DBLE
Spiegazioni elettronici  Dual Positive-Edge-Triggered D-Type Flip-Flops With Clear and Preset
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Homepage  http://www.ti.com
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SN74AHC74DBLE Scheda tecnica(HTML) 3 Page - Texas Instruments

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SN54AHC74, SN74AHC74
www.ti.com
SCLS255K – DECEMBER 1995 – REVISED DECEMBER 2013
Absolute Maximum Ratings
over operating free-air temperature range (unless otherwise noted)
(1)
UNIT
Supply voltage range, VCC
–0.5 V to 7 V
Input voltage range, VI
((2))
–0.5 V to 7 V
Output voltage range, VO
((2))
–0.5 V to VCC + 0.5 V
Input clamp current, IIK (VI < 0)
–20 mA
Output clamp current, IOK (VO < 0 or VO > VCC)
±20 mA
Continuous output current, IO (VO = 0 to VCC)
±25 mA
Continuous current through VCC or GND
±50 mA
D package
86°C/W
DB package(3)
96°C/W
DGV package(3)
127°C/W
Package thermal impedance,
ΘJA
N package(3)
80°C/W
NS package(3)
76°C/W
PW package(3)
113°C/W
RGY package(4)
47°C/W
Storage temperature range, Tstg
–65°C to 150°C
(1)
Stresses beyond those listed under Absolute Maximum Ratings may cause permanent damage to the device. These are stress ratings
only, and functional operation of the device at these or any other conditions beyond those indicated under Recommended Operating
Conditions is not implied. Exposure to absolute-maximum-rated conditions for extended periods may affect device reliability.
(2)
The input and output voltage ratings may be exceeded if the input and output current ratings are observed.
(3)
The package thermal impedance is calculated in accordance with JESD 51-7.
(4)
The package thermal impedance is calculated in accordance with JESD 51-5.
Recommended Operating Conditions
(1)
SN54AHC74
SN74AHC74
UNIT
MIN
MAX
MIN
MAX
VCC
Supply voltage
2
5.5
2
5.5
V
VCC = 2 V
1.5
1.5
VIH
High-level input voltage
VCC = 3V
2.1
2.1
V
VCC = 5.5 V
3.85
3.85
VCC = 2 V
0.5
0.5
VIL
Low-level input voltage
VCC = 3 V
0.9
0.9
V
VCC = 5.5 V
1.65
1.65
VI
Input voltage
0
5.5
0
5.5
V
VO
Output voltage
0
VCC
0
VCC
V
VCC = 2 V
–50
–50
µA
IOH
High-level output current
VCC = 3.3 V ± 0.3 V
–4
–4
mA
VCC = 5 V ± 0.5 V
–8
–8
VCC = 2 V
50
50
µA
IOL
Low-level output current
VCC = 3.3 V ± 0.3 V
4
4
mA
VCC = 5 V ± 0.5 V
8
8
VCC = 3.3 V ± 0.3 V
100
100
Δt/Δv
Input transition rise or fall rate
ns/V
VCC = 5 V ± 0.5 V
20
20
TA
Operating free-air temperature
–55
125
–40
125
°C
(1)
All unused inputs of the device must be held at VCC or GND to ensure proper device operation. Refer to the TI application report,
Implications of Slow or Floating CMOS Inputs, literature number SCBA004.
Copyright © 1995–2013, Texas Instruments Incorporated
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