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SN74LVCH245AQPWRQ1 PDF预览

SN74LVCH245AQPWRQ1

更新时间： 2024-10-01 12:22:31
品牌 Logo 应用领域
德州仪器 - TI 总线收发器输出元件
页数 文件大小 规格书
9页 170K
描述
OCTAL BUS TRANSCEIVER WITH 3-STATE OUTPUTS

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SN74LVCH245AQPWRQ1 技术参数

是否无铅： 含铅生命周期：Obsolete
零件包装代码：TSSOP包装说明：TSSOP, TSSOP20,.25
针数：20Reach Compliance Code：unknown
HTS代码：8542.39.00.01风险等级：5.84
系列：LVC/LCX/ZJESD-30 代码：R-PDSO-G20
长度：6.5 mm逻辑集成电路类型：BUS TRANSCEIVER
位数：8功能数量：1
端口数量：2端子数量：20
最高工作温度：125 °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：TSSOP
封装等效代码：TSSOP20,.25封装形状：RECTANGULAR
封装形式：SMALL OUTLINE, THIN PROFILE, SHRINK PITCH传播延迟（tpd）：8 ns
认证状态：Not Qualified筛选级别：AEC-Q100
座面最大高度：1.2 mm最大供电电压 (Vsup)：3.6 V
最小供电电压 (Vsup)：2 V标称供电电压 (Vsup)：2.7 V
表面贴装：YES技术：CMOS
温度等级：AUTOMOTIVE端子形式：GULL WING
端子节距：0.65 mm端子位置：DUAL
宽度：4.4 mmBase Number Matches：1

SN74LVCH245AQPWRQ1 数据手册

 浏览型号SN74LVCH245AQPWRQ1的Datasheet PDF文件第2页浏览型号SN74LVCH245AQPWRQ1的Datasheet PDF文件第3页浏览型号SN74LVCH245AQPWRQ1的Datasheet PDF文件第4页浏览型号SN74LVCH245AQPWRQ1的Datasheet PDF文件第5页浏览型号SN74LVCH245AQPWRQ1的Datasheet PDF文件第6页浏览型号SN74LVCH245AQPWRQ1的Datasheet PDF文件第7页 
SN74LVCH245A-Q1  
OCTAL BUS TRANSCEIVER  
WITH 3-STATE OUTPUTS  
www.ti.com  
SCES493A–SEPTEMBER 2003–REVISED DECEMBER 2005  
FEATURES  
DW OR PW PACKAGE  
(TOP VIEW)  
(1)  
•
•
•
Qualification in Accordance With AEC-Q100  
Qualified for Automotive Applications  
DIR  
A1  
V
CC  
1
2
3
4
5
6
7
8
9
10  
20  
Customer-Specific Configuration Control Can  
Be Supported Along With Major-Change  
Approval  
19 OE  
18 B1  
A2  
A3  
A4  
B2  
B3  
17  
16  
•
ESD Protection Exceeds 2000 V Per  
MIL-STD-883, Method 3015; Exceeds 200 V  
Using Machine Model (C = 200 pF, R = 0)  
A5  
A6  
A7  
A8  
15 B4  
14 B5  
13 B6  
12 B7  
•
•
•
•
Operates From 2 V to 3.6 V  
Inputs Accept Voltages to 5.5 V  
Max tpd of 7 ns at 3.3 V  
11  
GND  
B8  
Typical VOLP (Output Ground Bounce)  
<0.8 V at VCC = 3.3 V, TA = 25°C  
•
•
Typical VOHV (Output VOH Undershoot)  
>2 V at VCC = 3.3 V, TA = 25°C  
Supports Mixed-Mode Signal Operation on All  
Ports (5-V Input/Output Voltage With  
3.3-V VCC  
)
•
•
Ioff Supports Partial-Power-Down Mode  
Operation  
Bus Hold on Data Inputs Eliminates the Need  
for External Pullup/Pulldown Resistors  
(1) Contact factory for details. Q100 qualification data available  
on request.  
DESCRIPTION/ORDERING INFORMATION  
The SN74LVCH245A octal bus transceiver is designed for 2.7-V to 3.6-V VCC operation.  
Inputs can be driven from either 3.3-V or 5-V devices. This feature allows the use of this device as a translator in  
a mixed 3.3-V/5-V system environment.  
This device is designed for asynchronous communication between data buses. The device transmits data from  
the A bus to the B bus or from the B bus to the A bus, depending on the logic level at the direction-control (DIR)  
input. The output-enable (OE) input can be used to disable the device so the buses are effectively isolated.  
Active bus-hold circuitry is provided to hold unused or floating data inputs at a valid logic level. Use of pullup or  
pulldown resistors with the bus-hold circuitry is not recommended. The bus-hold circuitry is part of the input  
circuit and is not disabled by OE or DIR.  
This device is fully specified for partial-power-down applications using Ioff. The Ioff circuitry disables the outputs,  
preventing damaging current backflow through the device when it is powered down.  
To ensure the high-impedance state during power up or power down, OE should be tied to VCC through a pullup  
resistor; the minimum value of the resistor is determined by the current-sinking capability of the driver.  
ORDERING INFORMATION  
TA  
PACKAGE(1)  
Reel of 2000  
Reel of 2000  
ORDERABLE PART NUMBER  
SN74LVCH245AQDWRQ1  
SN74LVCH245AQPWRQ1  
TOP-SIDE MARKING  
LH245AQ  
LH245AQ  
SOIC – DW  
–40°C to 125°C  
TSSOP – PW  
(1) 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.  
PRODUCTION DATA information is current as of publication date.  
Copyright © 2003–2005, Texas Instruments Incorporated  
Products conform to specifications per the terms of the Texas  
Instruments standard warranty. Production processing does not  
necessarily include testing of all parameters.  
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