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SN74HCT244DB PDF预览

SN74HCT244DB

更新时间： 2024-02-22 18:34:05
品牌 Logo 应用领域
德州仪器 - TI 驱动器输出元件
页数 文件大小 规格书
16页 526K
描述
OCTAL BUFFERS AND LINE DRIVERS WITH 3-STATE OUTPUTS

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SN74HCT244DB 数据手册

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SN54HCT244, SN74HCT244  
OCTAL BUFFERS AND LINE DRIVERS  
WITH 3-STATE OUTPUTS  
SCLS175D – MARCH 1984 – REVISED AUGUST 2003  
SN54HCT244 . . . J OR W PACKAGE  
SN74HCT244 . . . DB, DW, N, NS, OR PW PACKAGE  
(TOP VIEW)  
Operating Voltage Range of 4.5 V to 5.5 V  
High-Current Outputs Drive Up To 15  
LSTTL Loads  
Low Power Consumption, 80-µA Max I  
Typical t = 13 ns  
pd  
6-mA Output Drive at 5 V  
1OE  
1A1  
2Y4  
1A2  
2Y3  
1A3  
2Y2  
1A4  
2Y1  
1
2
3
4
5
6
7
8
9
20  
V
CC  
CC  
19 2OE  
18 1Y1  
17 2A4  
16 1Y2  
15 2A3  
14 1Y3  
13 2A2  
12 1Y4  
11 2A1  
Low Input Current of 1 µA Max  
Inputs Are TTL-Voltage Compatible  
3-State Outputs Drive Bus Lines or Buffer  
Memory Address Registers  
description/ordering information  
GND 10  
These octal buffers and line drivers are designed  
specifically to improve both the performance and  
density of 3-state memory address drivers, clock  
drivers, and bus-oriented receivers and  
transmitters. The ’HCT244 devices are organized  
as two 4-bit buffers/drivers with separate  
output-enable (OE) inputs. When OE is low, the  
device passes noninverted data from the A inputs  
to the Y outputs. When OE is high, the outputs are  
in the high-impedance state.  
SN54HCT244 . . . FK PACKAGE  
(TOP VIEW)  
3
2
1
20 19  
18  
1A2  
2Y3  
1A3  
2Y2  
1A4  
1Y1  
2A4  
1Y2  
2A3  
4
5
6
7
8
17  
16  
15  
14 1Y3  
9 10 11 12 13  
ORDERING INFORMATION  
ORDERABLE  
PART NUMBER  
TOP-SIDE  
MARKING  
†
PACKAGE  
T
A
PDIP – N  
Tube of 20  
Tube of 25  
Reel of 2000  
Reel of 2000  
Reel of 2000  
Tube of 70  
Reel of 2000  
Reel of 250  
Tube of 20  
Tube of 85  
Tube of 55  
SN74HCT244N  
SN74HCT244N  
SN74HCT244DW  
SN74HCT244DWR  
SN74HCT244NSR  
SN74HCT244DBR  
SN74HCT244PW  
SN74HCT244PWR  
SN74HCT244PWT  
SNJ54HCT244J  
SOIC – DW  
HCT244  
SOP – NS  
HCT244  
HT244  
–40°C to 85°C  
SSOP – DB  
TSSOP – PW  
HT244  
CDIP – J  
CFP – W  
LCCC – FK  
SNJ54HCT244J  
SNJ54HCT244W  
SNJ54HCT244FK  
–55°C to 125°C  
SNJ54HCT244W  
SNJ54HCT244FK  
†
Package drawings, standard packing quantities, thermal data, symbolization, and PCB design guidelines are  
available at www.ti.com/sc/package.  
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.  
Copyright 2003, Texas Instruments Incorporated  
On products compliant to MIL-PRF-38535, all parameters are tested  
unless otherwise noted. On all other products, production  
processing does not necessarily include testing of all parameters.  
PRODUCTION DATA information is 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...16

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