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SN74LV244APW PDF预览

SN74LV244APW

更新时间： 2024-11-03 23:03:15
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德州仪器 - TI 驱动器输出元件
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7页 133K
描述
OCTAL BUFFERS/DRIVERS WITH 3-STATE OUTPUTS

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SN74LV244APW 数据手册

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SN54LV244A, SN74LV244A  
OCTAL BUFFERS/DRIVERS  
WITH 3-STATE OUTPUTS  
SCLS383B – SEPTEMBER 1997 – REVISED JUNE 1998  
SN54LV244A . . . J OR W PACKAGE  
SN74LV244A . . . DB, DGV, DW, NS, OR PW PACKAGE  
(TOP VIEW)  
EPIC (Enhanced-Performance Implanted  
CMOS) Process  
Typical V  
< 0.8 V at V , T = 25°C  
(Output Ground Bounce)  
OLP  
CC  
A
1OE  
1A1  
2Y4  
1A2  
2Y3  
1A3  
2Y2  
1A4  
2Y1  
GND  
V
CC  
1
2
3
4
5
6
7
8
9
10  
20  
19  
18  
17  
16  
15  
14  
Typical V  
> 2 V at V , T = 25°C  
(Output V  
Undershoot)  
2OE  
1Y1  
2A4  
1Y2  
2A3  
1Y3  
OHV  
CC  
OH  
A
Latch-Up Performance Exceeds 250 mA Per  
JESD 17  
ESD Protection Exceeds 2000 V Per  
MIL-STD-883, Method 3015; Exceeds 200 V  
Using Machine Model (C = 200 pF, R = 0)  
13 2A2  
12 1Y4  
Package Options Include Plastic  
Small-Outline (DW, NS), Shrink  
11  
2A1  
Small-Outline (DB), Thin Very Small-Outline  
(DGV), and Thin Shrink Small-Outline (PW)  
Packages, Ceramic Flat (W) Packages, Chip  
Carriers (FK), and DIPs (J)  
SN54LV244A . . . FK PACKAGE  
(TOP VIEW)  
description  
3
2 1 20 19  
18  
1Y1  
2A4  
1Y2  
2A3  
1Y3  
1A2  
2Y3  
1A3  
2Y2  
1A4  
4
5
6
7
8
These octal buffers/line drivers are designed for  
2-V to 5.5-V V operation.  
17  
16  
15  
14  
CC  
The ’LV244A devices are designed specifically to  
improve both the performance and density of  
3-state memory address drivers, clock drivers,  
and bus-oriented receivers and transmitters.  
9 10 11 12 13  
These devices are organized as two 4-bit line  
drivers with separate output-enable (OE) inputs.  
When OE is low, the device passes data from the  
A inputs to the Y outputs. When OE is high, the  
outputs are in the high-impedance state.  
To ensure the high-impedance state during power up or power down, OE should be tied to V through a pullup  
CC  
resistor; the minimum value of the resistor is determined by the current-sinking capability of the driver.  
The SN54LV244A is characterized for operation over the full military temperature range of –55°C to 125°C.  
The SN74LV244A is characterized for operation from –40°C to 85°C.  
FUNCTION TABLE  
(each buffer)  
INPUTS  
OUTPUT  
Y
OE  
A
H
L
L
L
H
L
H
X
Z
Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of  
Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.  
EPIC is a trademark of Texas Instruments Incorporated.  
Copyright 1998, Texas Instruments Incorporated  
UNLESS OTHERWISE NOTED this document contains PRODUCTION  
DATA information current as of publication date. Products conform to  
specifications per the terms of Texas Instruments standard warranty.  
Production processing does not necessarily include testing of all  
parameters.  
1
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265  
1234567

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SN74LV244APW 替代型号

型号 品牌 替代类型 描述 数据表
SN74LV244APWT TI

完全替代

 OCTAL BUFFERS /DRIVERS WITH 3 STATE OUTPUTS
SN74LV244APWR TI

完全替代

 OCTAL BUFFERS /DRIVERS WITH 3 STATE OUTPUTS
SN74LV244APWLE TI

完全替代

 OCTAL BUFFERS /DRIVERS WITH 3 STATE OUTPUTS

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