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PCA9545ADGVRG4

更新时间： 2024-11-09 20:54:55
品牌 Logo 应用领域
德州仪器 - TI 光电二极管逻辑集成电路电视
页数 文件大小 规格书
28页 841K
描述
4-Channel I<sup>2</sup>C And SMBus Multiplexer With Interrupt Logic And Reset Functions 20-TVSOP -40 to 85

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中文翻译

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PCA9545ADGVRG4 技术参数

是否无铅： 含铅是否Rohs认证： 符合
生命周期：Obsolete零件包装代码：SOIC
包装说明：TSSOP, TSSOP20,.25针数：20
Reach Compliance Code：unknownHTS代码：8542.39.00.01
风险等级：5.64系列：9545
JESD-30 代码：R-PDSO-G20JESD-609代码：e4
长度：5 mm逻辑集成电路类型：MULTIPLEXER
湿度敏感等级：1功能数量：1
输入次数：4输出次数：1
端子数量：20最高工作温度：85 °C
最低工作温度：-40 °C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峰值回流温度（摄氏度）：260
传播延迟（tpd）：1 ns认证状态：Not Qualified
座面最大高度：1.2 mm最大供电电压 (Vsup)：5.5 V
最小供电电压 (Vsup)：2.3 V标称供电电压 (Vsup)：2.5 V
表面贴装：YES温度等级：INDUSTRIAL
端子面层：Nickel/Palladium/Gold (Ni/Pd/Au)端子形式：GULL WING
端子节距：0.4 mm端子位置：DUAL
处于峰值回流温度下的最长时间：NOT SPECIFIED宽度：4.4 mm
Base Number Matches：1

PCA9545ADGVRG4 数据手册

 浏览型号PCA9545ADGVRG4的Datasheet PDF文件第2页浏览型号PCA9545ADGVRG4的Datasheet PDF文件第3页浏览型号PCA9545ADGVRG4的Datasheet PDF文件第4页浏览型号PCA9545ADGVRG4的Datasheet PDF文件第5页浏览型号PCA9545ADGVRG4的Datasheet PDF文件第6页浏览型号PCA9545ADGVRG4的Datasheet PDF文件第7页 
PCA9545A  
4-CHANNEL I2C AND SMBus SWITCH  
WITH INTERRUPT LOGIC AND RESET FUNCTIONS  
www.ti.com  
SCPS147C–OCTOBER 2005–REVISED OCTOBER 2006  
FEATURES  
•
•
•
•
•
•
1-of-4 Bidirectional Translating Switches  
I2C Bus and SMBus Compatible  
Four Active-Low Interrupt Inputs  
Active-Low Interrupt Output  
•
•
•
•
No Glitch on Power Up  
Supports Hot Insertion  
Low Standby Current  
Operating Power-Supply Voltage Range of  
2.3 V to 5.5 V  
Active-Low Reset Input  
•
•
•
5.5-V Tolerant Inputs  
Two Address Pins, Allowing up to Four  
Devices on the I2C Bus  
Channel Selection Via I2C Bus, In Any  
0 to 400-kHz Clock Frequency  
•
•
Latch-Up Performance Exceeds 100 mA Per  
JESD 78  
Combination  
Power Up With All Switch Channels  
Deselected  
•
ESD Protection Exceeds JESD 22  
– 2000-V Human-Body Model (A114-A)  
– 200-V Machine Model (A115-A)  
•
•
Low RON Switches  
Allows Voltage-Level Translation Between  
1.8-V, 2.5-V, 3.3-V, and 5-V Buses  
– 1000-V Charged-Device Model (C101)  
DGV, DW, OR PW PACKAGE  
(TOP VIEW)  
RGW PACKAGE  
(TOP VIEW)  
RGY PACKAGE  
(TOP VIEW)  
1
2
3
4
5
6
7
8
9
10  
20  
19  
18  
17  
16  
15  
14  
13  
12  
11  
A0  
A1  
VCC  
1
20  
20 19 18 17 16  
SDA  
SCL  
INT  
SC3  
SD3  
INT3  
SC2  
SD2  
INT2  
2
3
4
5
6
7
8
9
19  
18  
17  
16  
15  
14  
13  
12  
A1  
RESET  
INT0  
SD0  
SDA  
SCL  
INT  
SC3  
SD3  
INT3  
SC2  
SD2  
INT  
15  
RESET  
INT0  
SD0  
1
2
3
4
5
RESET  
INT0  
SD0  
SC0  
INT1  
SD1  
SC1  
GND  
SC3  
SD3  
INT3  
SC2  
14  
13  
12  
11  
SC0  
SC0  
INT1  
SD1  
INT1  
SC1  
6
7
8 9 10  
10 11  
DESCRIPTION/ORDERING INFORMATION  
The PCA9545A is a quad bidirectional translating switch controlled via the I2C bus. The SCL/SDA upstream pair  
fans out to four downstream pairs, or channels. Any individual SCn/SDn channel or combination of channels can  
be selected, determined by the contents of the programmable control register. Four interrupt inputs (INT3–INT0),  
one for each of the downstream pairs, are provided. One interrupt (INT) output acts as an AND of the four  
interrupt inputs.  
An active-low reset (RESET) input allows the PCA9545A to recover from a situation in which one of the  
downstream I2C buses is stuck in a low state. Pulling RESET low resets the I2C state machine and causes all  
the channels to be deselected, as does the internal power-on reset function.  
The pass gates of the switches are constructed such that the VCC pin can be used to limit the maximum high  
voltage, which will be passed by the PCA9545A. This allows the use of different bus voltages on each pair, so  
that 1.8-V, 2.5-V, or 3.3-V parts can communicate with 5-V parts, without any additional protection. External  
pullup resistors pull the bus up to the desired voltage level for each channel. All I/O pins are 5.5-V tolerant.  
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 © 2005–2006, 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.  
1234567...28

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