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PCA9544ADWT PDF预览

PCA9544ADWT

更新时间: 2024-11-08 21:54:15
品牌 Logo 应用领域
德州仪器 - TI 解复用器逻辑集成电路光电二极管
页数 文件大小 规格书
23页 572K
描述
4-CHANNEL IC AND SMBus MULTIPLEXER WITH INTERRUPT LOGIC

PCA9544ADWT 技术参数

生命周期:Obsolete零件包装代码:SOIC
包装说明:SOP,针数:20
Reach Compliance Code:unknownHTS代码:8542.39.00.01
风险等级:5.42系列:9544
JESD-30 代码:R-PDSO-G20长度:12.8 mm
逻辑集成电路类型:MULTIPLEXER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:SOP
封装形状:RECTANGULAR封装形式:SMALL OUTLINE
传播延迟(tpd):1000 ns认证状态:Not Qualified
座面最大高度:2.65 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
端子形式:GULL WING端子节距:1.27 mm
端子位置:DUAL宽度:7.5 mm
Base Number Matches:1

PCA9544ADWT 数据手册

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PCA9544A  
4-CHANNEL I2C AND SMBus MULTIPLEXER  
WITH INTERRUPT LOGIC  
www.ti.com  
SCPS146AOCTOBER 2005REVISED OCTOBER 2005  
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  
Three Address Pins, Allowing up to Eight  
Devices on the I2C Bus  
Channel Selection Via I2C Bus  
5.5-V Tolerant Inputs  
0 to 400-kHz Clock Frequency  
Power Up With All Switch Channels  
Deselected  
Latch-Up Performance Exceeds 100 mA Per  
JESD 78  
Low RON Switches  
ESD Protection Exceeds JESD 22  
– 2000-V Human-Body Model (A114-A)  
– 200-V Machine Model (A115-A)  
Allows Voltage-Level Translation Between  
1.8-V, 2.5-V, 3.3-V, and 5-V Buses  
– 1000-V Charged-Device Model (C101)  
DESCRIPTION/ORDERING INFORMATION  
The PCA9544A is a quad bidirectional translating switch controlled via the I2C bus. The SCL/SDA upstream pair  
fans out to four downstream pairs, or channels. One SCL/SDA pair can be selected at a time, and this is  
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 output (INT) acts as an AND of the four interrupt inputs.  
A power-on reset function puts the registers in their default state and initializes the I2C state machine, with no  
channel selected.  
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 PCA9544A. 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-V tolerant.  
ORDERING INFORMATION  
TA  
PACKAGE(1)  
ORDERABLE PART NUMBER  
PCA9544ARGWR  
PCA9544ARGYR  
PCA9544ADW  
TOP-SIDE MARKING  
PREVIEW  
QFN – RGW  
QFN – RGY  
Reel of 3000  
Reel of 1000  
Tube of 25  
PD544A  
PCA9544A  
PREVIEW  
SOIC – DW  
Reel of 2000  
Reel of 250  
Tube of 70  
PCA9544ADWR  
PCA9544ADWT  
PCA9544APW  
–40°C to 85°C  
TSSOP – PW  
TVSOP – DGV  
Reel of 2000  
Reel of 250  
Reel of 2000  
Reel of 250  
Reel of 1000  
Reel of 1000  
PCA9544APWR  
PCA9544APWT  
PD544A  
PCA9544ADGVR  
PCA9544ADGVT  
PCA9544AGQNR  
PCA9544AZQNR  
PD544A  
PREVIEW  
PD544A  
PD544A  
VFBGA – GQN  
VFBGA – ZQN (Pb-free)  
(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 © 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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具有中断和电压转换的 4 通道 2.3V 至 5.5V I2C/SMBus 多路复用器 |