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PCA9544ADW PDF预览

PCA9544ADW

更新时间： 2024-11-08 21:54:15
品牌 Logo 应用领域
德州仪器 - TI 复用器
页数 文件大小 规格书
23页 572K
描述
4-CHANNEL IC AND SMBus MULTIPLEXER WITH INTERRUPT LOGIC

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PCA9544ADW 数据手册

 浏览型号PCA9544ADW的Datasheet PDF文件第2页浏览型号PCA9544ADW的Datasheet PDF文件第3页浏览型号PCA9544ADW的Datasheet PDF文件第4页浏览型号PCA9544ADW的Datasheet PDF文件第5页浏览型号PCA9544ADW的Datasheet PDF文件第6页浏览型号PCA9544ADW的Datasheet PDF文件第7页 
PCA9544A  
4-CHANNEL I2C AND SMBus MULTIPLEXER  
WITH INTERRUPT LOGIC  
www.ti.com  
SCPS146A–OCTOBER 2005–REVISED 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.  
1234567...23

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PCA9544ADW 替代型号

型号 品牌 替代类型 描述 数据表
PCA9544ADWRG4 TI

完全替代

 9544 SERIES, 4 LINE TO 1 LINE MULTIPLEXER, TRUE OUTPUT, PDSO20, GREEN, PLASTIC, SOIC-20
PCA9544APWE4 TI

完全替代

 4-CHANNEL I2C AND SMBus MULTIPLEXER WITH INTERRUPT LOGIC
PCA9544APWT TI

完全替代

 4-CHANNEL IC AND SMBus MULTIPLEXER WITH INTERRUPT LOGIC

与PCA9544ADW相关器件

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PCA9544ADWG4 TI

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 		9544 SERIES, 4 LINE TO 1 LINE MULTIPLEXER, TRUE OUTPUT, PDSO20, GREEN, PLASTIC, SOIC-20
PCA9544ADWR TI

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 		4-CHANNEL IC AND SMBus MULTIPLEXER WITH INTERRUPT LOGIC
PCA9544ADWRG4 TI

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 		4-CHANNEL IC AND SMBus MULTIPLEXER WITH INTERRUPT LOGIC
PCA9544AGQNR TI

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 		4-CHANNEL IC AND SMBus MULTIPLEXER WITH INTERRUPT LOGIC
PCA9544APW NXP

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 		4-channel IC multiplexer with interrupt logic
PCA9544APW TI

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 		4-CHANNEL IC AND SMBus MULTIPLEXER WITH INTERRUPT LOGIC
PCA9544APW,112 NXP

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 		PCA9544A - 4-channel I2C-bus multiplexer with interrupt logic TSSOP2 20-Pin
PCA9544APW,118 NXP

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 		PCA9544A - 4-channel I2C-bus multiplexer with interrupt logic TSSOP2 20-Pin
PCA9544APW/G,118 NXP

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 		PCA9544A - 4-channel I2C-bus multiplexer with interrupt logic TSSOP2 20-Pin

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