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參數(shù)資料
| 型號： | SN74LV244ATDWR |
| 廠商： | TEXAS INSTRUMENTS INC |
| 元件分類： | 總線收發(fā)器 |
| 英文描述： | LV/LV-A/LVX/H SERIES, DUAL 4-BIT DRIVER, TRUE OUTPUT, PDSO20 |
| 封裝： | GREEN, PLASTIC, SOIC-20 |
| 文件頁數(shù)： | 13/19頁 |
| 文件大?。?/td> | 676K |
| 代理商： | SN74LV244ATDWR |
www.ti.com
Absolute Maximum Ratings
(1)
Recommended Operating Conditions
(1)
SN74LV244AT
OCTAL BUFFER/DRIVER
WITH 3-STATE OUTPUTS
SCES572C – JUNE 2004 – REVISED AUGUST 2005
over operating free-air temperature range (unless otherwise noted)
MIN
MAX
UNIT
VCC
Supply voltage range
–0.5
7
V
VI
Input voltage range(2)
–0.5
7
V
VO
Voltage range applied to any output in the high-impedance or power-off state(2)
–0.5
7
V
VO
Output voltage range applied in the high or low state(2)(3)
–0.5
VCC + 0.5
V
IIK
Input clamp current
VI < 0
–20
mA
IOK
Output clamp current
VO < 0
–50
mA
IO
Continuous output current
VO = 0 to VCC
±35
mA
Continuous current through VCC or GND
±70
mA
DB package(4)
70
DGV package(4)
92
DW package(4)
58
θ
JA
Package thermal impedance
°C/W
NS package(4)
60
PW package(4)
83
RGY package(5)
37
Tstg
Storage temperature range
–65
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 negative-voltage ratings may be exceeded if the input and output current ratings are observed.
(3)
This value is limited to 5.5 V maximum.
(4)
The package thermal impedance is calculated in accordance with JESD 51-7
(5)
The package thermal impedance is calculated in accordance with JESD 51-5.
MIN
MAX
UNIT
VCC
Supply voltage
4.5
5.5
V
VIH
High-level input voltage
VCC = 4.5 V to 5.5 V
2
V
VIL
Low-level input voltage
VCC = 4.5 V to 5.5 V
0.8
V
VI
Input voltage
0
5.5
V
High or low state
0
VCC
VO
Output voltage
V
3-state
0
5.5
IOH
High-level output current
VCC = 4.5 V to 5.5 V
–16
mA
IOL
Low-level output current
VCC = 4.5 V to 5.5 V
16
mA
t/v
Input transition rise or fall rate
VCC = 4.5 V to 5.5 V
20
ns/V
TA
Operating free-air temperature
–40
85
°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.
3
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參數(shù)描述 |
|---|---|
| SN74LV244ATDWRE4 | 功能描述:緩沖器和線路驅(qū)動器 Octal Buffer/Driver With 3-State Outputs RoHS:否 制造商:Micrel 輸入線路數(shù)量:1 輸出線路數(shù)量:2 極性:Non-Inverting 電源電壓-最大:+/- 5.5 V 電源電壓-最小:+/- 2.37 V 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:MSOP-8 封裝:Reel |
| SN74LV244ATDWRG4 | 功能描述:緩沖器和線路驅(qū)動器 Octal Buffer Driver RoHS:否 制造商:Micrel 輸入線路數(shù)量:1 輸出線路數(shù)量:2 極性:Non-Inverting 電源電壓-最大:+/- 5.5 V 電源電壓-最小:+/- 2.37 V 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:MSOP-8 封裝:Reel |
| SN74LV244ATNS | 功能描述:緩沖器和線路驅(qū)動器 Octal Buffer Driver RoHS:否 制造商:Micrel 輸入線路數(shù)量:1 輸出線路數(shù)量:2 極性:Non-Inverting 電源電壓-最大:+/- 5.5 V 電源電壓-最小:+/- 2.37 V 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:MSOP-8 封裝:Reel |
| SN74LV244ATNSE4 | 功能描述:緩沖器和線路驅(qū)動器 Octal Buffer Driver RoHS:否 制造商:Micrel 輸入線路數(shù)量:1 輸出線路數(shù)量:2 極性:Non-Inverting 電源電壓-最大:+/- 5.5 V 電源電壓-最小:+/- 2.37 V 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:MSOP-8 封裝:Reel |
| SN74LV244ATNSG4 | 功能描述:緩沖器和線路驅(qū)動器 Octal Buffer Driver RoHS:否 制造商:Micrel 輸入線路數(shù)量:1 輸出線路數(shù)量:2 極性:Non-Inverting 電源電壓-最大:+/- 5.5 V 電源電壓-最小:+/- 2.37 V 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:MSOP-8 封裝:Reel |
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