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SN74HC244DWE4 Scheda tecnica(PDF) 4 Page - Texas Instruments

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Il numero della parte SN74HC244DWE4
Spiegazioni elettronici  Octal Buffers and Line Drivers With 3-State Outputs
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Produttore elettronici  TI1 [Texas Instruments]
Homepage  http://www.ti.com
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SN74HC244DWE4 Scheda tecnica(HTML) 4 Page - Texas Instruments

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SN54HC244, SN74HC244
SCLS130E – DECEMBER 1982 – REVISED MAY 2016
www.ti.com
Product Folder Links: SN54HC244 SN74HC244
Submit Documentation Feedback
Copyright © 1982–2016, Texas Instruments Incorporated
(1)
Stresses beyond those listed under Absolute Maximum Ratings may cause permanent damage to the device. These are stress ratings
only, which do not imply functional operation of the device at these or any other conditions beyond those indicated under Recommended
Operating Conditions. 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.
6 Specifications
6.1 Absolute Maximum Ratings
over operating free-air temperature range (unless otherwise noted)
(1)
MIN
MAX
UNIT
Supply voltage range, VCC
–0.5
7
V
Input clamp current, IIK
VI < 0 or VI > VCC
(2)
±20
mA
Output clamp current, IOK
VO < 0 or VO > VCC
(2)
±20
mA
Continuous output current, IO
VO = 0 or VCC
±35
mA
Continuous current through VCC or GND
±70
mA
Junction Temperature, TJ
150
°C
Storage temperature, Tstg
–65
150
°C
(1)
JEDEC document JEP155 states that 500-V HBM allows safe manufacturing with a standard ESD control process.
(2)
JEDEC document JEP157 states that 250-V CDM allows safe manufacturing with a standard ESD control process.
6.2 ESD Ratings
SN74HC244
VALUE
UNIT
V(ESD)
Electrostatic discharge
Human-body model (HBM), per ANSI/ESDA/JEDEC JS-001(1)
±2000
V
Charged-device model (CDM), per JEDEC specification JESD22-C101(2)
±1000
(1)
All unused inputs of the device must be held at VCC or GND to ensure proper device operation. See the Texas Instruments application
report, Implications of Slow or Floating CMOS Inputs, SCBA004.
6.3 Recommended Operating Conditions
over operating free-air temperature range (unless otherwise noted)
(1)
MIN
NOM
MAX
UNIT
VCC
Supply voltage
2
5
6
V
VIH
High-level input voltage
VCC = 2 V
1.5
V
VCC = 4.5 V
3.15
VCC = 6 V
4.2
VIL
Low-level input voltage
VCC = 2 V
0.5
V
VCC = 4.5 V
1.35
VCC = 6 V
1.8
VI
Input voltage
0
VCC
V
VO
Output voltage
0
VCC
V
Δt/Δv
Input transition rise and fall time
VCC = 2 V
1000
ns/V
VCC = 4.5 V
500
VCC = 6 V
400
Cpd
Power dissipation capacitance per buffer or driver (no load)
35
pF
TA
Operating free-air temperature
SN54HC244
–55
125
°C
SN74HC244
–40
85


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