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DM74AS244WM PDF预览

DM74AS244WM

更新时间: 2024-09-29 22:53:55
品牌 Logo 应用领域
飞兆/仙童 - FAIRCHILD 总线驱动器总线收发器逻辑集成电路光电二极管
页数 文件大小 规格书
5页 60K
描述
3-STATE Bus Driver/Receiver

DM74AS244WM 技术参数

是否Rohs认证: 符合生命周期:Obsolete
零件包装代码:SOIC包装说明:SOP, SOP20,.4
针数:20Reach Compliance Code:unknown
HTS代码:8542.39.00.01风险等级:5.32
Is Samacsys:N控制类型:ENABLE LOW
系列:ASJESD-30 代码:R-PDSO-G20
JESD-609代码:e3长度:12.8 mm
逻辑集成电路类型:BUS DRIVER最大I(ol):0.064 A
湿度敏感等级:1位数:4
功能数量:2端口数量:2
端子数量:20最高工作温度:70 °C
最低工作温度:输出特性:3-STATE
输出极性:TRUE封装主体材料:PLASTIC/EPOXY
封装代码:SOP封装等效代码:SOP20,.4
封装形状:RECTANGULAR封装形式:SMALL OUTLINE
峰值回流温度(摄氏度):260电源:5 V
最大电源电流(ICC):90 mAProp。Delay @ Nom-Sup:6.2 ns
传播延迟(tpd):6.2 ns认证状态:Not Qualified
座面最大高度:2.65 mm子类别:Bus Driver/Transceivers
最大供电电压 (Vsup):5.5 V最小供电电压 (Vsup):4.5 V
标称供电电压 (Vsup):5 V表面贴装:YES
技术:TTL温度等级:COMMERCIAL
端子面层:Matte Tin (Sn)端子形式:GULL WING
端子节距:1.27 mm端子位置:DUAL
处于峰值回流温度下的最长时间:NOT SPECIFIED宽度:7.5 mm
Base Number Matches:1

DM74AS244WM 数据手册

 浏览型号DM74AS244WM的Datasheet PDF文件第2页浏览型号DM74AS244WM的Datasheet PDF文件第3页浏览型号DM74AS244WM的Datasheet PDF文件第4页浏览型号DM74AS244WM的Datasheet PDF文件第5页 
October 1986  
Revised March 2000  
DM74AS240 • DM74AS244  
3-STATE Bus Driver/Receiver  
General Description  
Features  
This family of Advance Schottky 3-STATE Bus circuits are  
designed to provide either bidirectional or unidirectional  
buffer interface in Memory, Microprocessor, and Communi-  
cation Systems. The output characteristics of the circuits  
have low impedance sufficient to drive terminated trans-  
mission lines down to 133. The input characteristics of  
the circuits likewise have a high impedance so it will not  
significantly load the transmission line. The package con-  
tains eight 3-STATE buffers organized with four buffers  
having a common 3-STATE enable gate. The DM74AS240  
and DM74AS244 are eight wide in a 20 pin package, and  
may be used as a 4 wide bidirectional or eight wide unidi-  
rectional. The buffer selection includes inverting and non-  
inverting, with enable or disable 3-STATE control.  
Advanced oxide-isolated, ion-implanted Schottky TTL  
process  
Improved switching performance with less power dissi-  
pation compared with Schottky counterpart  
Functional and pin compatible with 74LS and Schottky  
counterpart  
Switching response specified into 500and 50 pF  
Specified to interface with CMOS at VOH = VCC 2V  
Ordering Code:  
Order Number Package Number  
Package Description  
DM74AS240WM  
DM74AS240N  
DM74AS244WM  
DM74AS244N  
M20B  
N20A  
M20B  
N20A  
20-Lead Small Outline Integrated Circuit (SOIC), JEDEC MS-013, 0.300 Wide  
20-Lead Plastic Dual-In-Line Package (PDIP), JEDEC MS-001, 0.300 Wide  
20-Lead Small Outline Integrated Circuit (SOIC), JEDEC MS-013, 0.300 Wide  
20-Lead Plastic Dual-In-Line Package (PDIP), JEDEC MS-001, 0.300 Wide  
Devices also available in Tape and Reel. Specify by appending the suffix letter “X” to the ordering code.  
Connection Diagrams  
DM74AS240  
DM74AS244  
Function Tables  
DM74AS240  
DM74AS244  
Inputs  
Inputs  
Output  
Output  
G
L
A
L
Y
G
A
L
Y
L
H
L
L
H
X
L
L
H
X
H
Z
H
Z
H
L = LOW Logic Level  
H = HIGH Logic Level  
X = Either LOW or HIGH Logic Level  
Z = High Impedance  
© 2000 Fairchild Semiconductor Corporation  
DS006298  
www.fairchildsemi.com  

DM74AS244WM 替代型号

型号 品牌 替代类型 描述 数据表
DM74AS244WMX FAIRCHILD

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Dual 4-Bit Non-Inverting Buffer/Driver
SN74AS244ADW TI

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OCTAL BUFFERS AND LINE DRIVERS WITH 3-STATE OUTPUTS
SN74AS760DW TI

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OCTAL BUFFERS AND LINE DRIVERS WITH OPEN-COLLECTOR OUTPUTS

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