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SN74LVT244DB PDF预览

SN74LVT244DB

更新时间： 2024-11-09 12:58:43
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
7页 112K
描述
LVT SERIES, DUAL 4-BIT DRIVER, TRUE OUTPUT, PDSO20

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SN74LVT244DB 技术参数

生命周期：ObsoleteReach Compliance Code：unknown
风险等级：5.23Is Samacsys：N
其他特性：BUS HOLD INPUTS; INPUTS CAN BE DRIVEN BY 3.3V OR 5V COMPONENTS系列：LVT
JESD-30 代码：R-PDSO-G20长度：7.2 mm
负载电容（CL）：50 pF逻辑集成电路类型：BUS DRIVER
位数：4功能数量：2
端口数量：2端子数量：20
最高工作温度：85 °C最低工作温度：-40 °C
输出特性：3-STATE输出极性：TRUE
封装主体材料：PLASTIC/EPOXY封装代码：SSOP
封装形状：RECTANGULAR封装形式：SMALL OUTLINE, SHRINK PITCH
最大电源电流（ICC）：12 mA传播延迟（tpd）：5.2 ns
认证状态：Not Qualified座面最大高度：2 mm
最大供电电压 (Vsup)：3.6 V最小供电电压 (Vsup)：2.7 V
标称供电电压 (Vsup)：3.3 V表面贴装：YES
技术：BICMOS温度等级：INDUSTRIAL
端子形式：GULL WING端子节距：0.65 mm
端子位置：DUAL宽度：5.3 mm
Base Number Matches：1

SN74LVT244DB 数据手册

 浏览型号SN74LVT244DB的Datasheet PDF文件第2页浏览型号SN74LVT244DB的Datasheet PDF文件第3页浏览型号SN74LVT244DB的Datasheet PDF文件第4页浏览型号SN74LVT244DB的Datasheet PDF文件第5页浏览型号SN74LVT244DB的Datasheet PDF文件第6页浏览型号SN74LVT244DB的Datasheet PDF文件第7页 
SN54LVT244B, SN74LVT244B  
3.3-V ABT OCTAL BUFFERS/DRIVERS  
WITH 3-STATE OUTPUTS  
SCAS354F – FEBRUARY 1994 – REVISED APRIL 2000  
SN54LVT244B . . . J OR W PACKAGE  
SN74LVT244B . . . DB, DW, OR PW PACKAGE  
(TOP VIEW)  
State-of-the-Art Advanced BiCMOS  
Technology (ABT) Design for 3.3-V  
Operation and Low Static-Power  
Dissipation  
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  
High-Impedance State During Power Up  
and Power Down  
2OE  
1Y1  
2A4  
1Y2  
2A3  
1Y3  
Support Mixed-Mode Signal Operation (5-V  
Input and Output Voltages With 3.3-V V  
)
CC  
Support Unregulated Battery Operation  
Down to 2.7 V  
13 2A2  
12 1Y4  
Typical V  
<0.8 V at V  
(Output Ground Bounce)  
OLP  
CC  
= 3.3 V, T = 25°C  
A
11  
2A1  
I
and Power-Up 3-State Support Hot  
off  
Insertion  
SN54LVT244B . . . FK PACKAGE  
(TOP VIEW)  
Latch-Up Performance Exceeds 100 mA Per  
JESD 78, Class II  
ESD Protection Exceeds JESD 22  
– 2000-V Human-Body Model (A114-A)  
– 200-V Machine Model (A115-A)  
3
2
1 20 19  
18  
1Y1  
2A4  
1Y2  
2A3  
1Y3  
1A2  
2Y3  
1A3  
2Y2  
1A4  
4
5
6
7
8
– 1000-V Charged-Device Model (C101)  
17  
16  
15  
14  
Package Options Include Plastic  
Small-Outline (DW), Shrink Small-Outline  
(DB), and Thin Shrink Small-Outline (PW)  
Packages, Ceramic Chip Carriers (FK),  
Ceramic Flat (W) Packages, and Ceramic  
(J) DIPs  
9 10 11 12 13  
description  
These octal buffers and line drivers are designed specifically for low-voltage (3.3-V) V operation, but with the  
CC  
capability to provide a TTL interface to a 5-V system environment.  
The ’LVT244B is 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.  
When V  
is between 0 and 1.5 V, the device is in the high-impedance state during power up or power down.  
CC  
However, to ensure the high-impedance state above 1.5 V, OE should be tied to V  
the minimum value of the resistor is determined by the current-sinking capability of the driver.  
through a pullup resistor;  
CC  
These devices are fully specified for hot-insertion applications using I and power-up 3-state. The I circuitry  
off  
off  
disables the outputs, preventing damaging current backflow through the devices when they are powered down.  
The power-up 3-state circuitry places the outputs in the high-impedance state during power up and power down,  
which prevents driver conflict.  
The SN54LVT244B is characterized for operation over the full military temperature range of –55°C to 125°C.  
The SN74LVT244B is characterized for operation from –40°C to 85°C.  
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 2000, 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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