PCA9548ADBR ,8-Channel I2C Switch With Reset 24-SSOP -40 to 85Electrical Characteristics....... 512.2 Layout Example....... 2127.6 I C Interface Timing Requireme ..
PCA9548ADGVR ,8-Channel I2C Switch With Reset 24-TVSOP -40 to 85Features... 19.3 Feature Description.... 112 Applications..... 19.4 Device Functional Modes.... 113 ..
PCA9548ADW ,8-Channel I2C Switch With Reset 24-SOIC -40 to 85Table of Contents9.2 Functional
PCA9548ADWR ,8-Channel I2C Switch With Reset 24-SOIC -40 to 85 SCPS143E–JUNE 2009–REVISED FEBRUARY 20155 Description (continued)The pass gates of the switches ar ..
PCA9548APW ,8-channel I虏C-bus switch with resetMaximum Ratingsover operating free-air temperature range (unless otherwise noted)MIN MAX UNITV Supp ..
PCA9548APWR ,8-Channel I2C Switch With Reset 24-TSSOP -40 to 85Sample & Support &Product Tools &TechnicalCommunityBuyFolder Documents SoftwarePCA9548ASCPS143E–JUN ..
PESD5V0L1BA ,PESDxL1BA series; Low capacitance bidirectional ESD protection diodes in SOD323Featuresn Bidirectional ESD protection of one line n ESD protection > 23 kVn Max. peak pulse power: ..
PESD5V0L1BSF ,Ultra low profile bidirectional low capacitance ESD protection diodeApplications Cellular handsets and accessories Portable electronics Communication systems Compu ..
PESD5V0L1UA ,Low capacitance unidirectional ESD protection diodesFeaturesn Unidirectional ESD protection of n ESD protection up to 26 kVone linen Low diode capacita ..
PESD5V0L1UB ,Low capacitance unidirectional ESD protection diodesGeneral descriptionLow capacitance unidirectional ElectroStatic Discharge (ESD) protection diodes i ..
PESD5V0L1UL ,Low capacitance unidirectional ESD protection diodesPESD5V0L1UA; PESD5V0L1UB;PESD5V0L1ULLow capacitance unidirectional ESD protection diodesRev. 01 — 1 ..
PESD5V0L2BT ,Low capacitance double bidirectional ESD protection diodes in SOT23General descriptionLow capacitance double bidirectional ElectroStatic Discharge (ESD) protection di ..
PCA9548A-PCA9548ADB-PCA9548ADBR-PCA9548ADGVR-PCA9548ADW-PCA9548ADWR-PCA9548APW-PCA9548APWR-PCA9548ARGER
8-Channel I2C Switch With Reset 24-SSOP -40 to 85
PCA9548ASlavesA0, A1...AN
SlavesB0, B1...BN
Slaves
I2Cor SMBus
Master
(processor)
SDASCL
SD0SC0Channel0
Channel1
Channel
RESET SD1SC1
SD7SC7
VCC
GNDSlavesC0, C1...CN
Channel2
SD2SC2Product
Folder
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PCA9548ASCPS143E –JUNE 2009–REVISED FEBRUARY 2015
PCA9548A Low Voltage 8-ChannelI2C Switch With Reset Features 2 Applications 1-of-8 Bidirectional Translating Switches • ServersI2C Bus and SMBus Compatible • Routers (Telecom Switching Equipment) Active-Low Reset Input • Factory Automation Three Hardware Address Pins for Useofupto • Products WithI2C Slave Address Conflicts (e.g.
Eight PCA9548A Deviceson theI2C Bus Multiple, Identical Temp Sensors) Channel Selection ViaI2C Bus
3 Description• Power-Up withAll Switch Channels Deselected The PCA9548A has eight bidirectional translating• Low RON Switches switches that can be controlled via theI2C bus. The• Allows Voltage-Level Translation Between 1.8-V, SCL/SDA upstream pair fans outto eight downstream2.5-V, 3.3-V, and 5-V Buses pairs,or channels. Any individual SCx/SDx channel combination of channels can be selected,• No Glitchon Power Up determined by the contents of the programmable• Supports Hot Insertion control register.• Low Standby Current The system master can reset the PCA9548Ain the• Operating Power-Supply Voltage Rangeof 2.3 eventofa timeout or other improper operation byVto 5.5V assertinga lowin the RESET input. Similarly, the• 5-V Tolerant Inputs power-on reset deselects all channels and initializes
theI2 C/SMBus state machine. Asserting RESET• 0to 400-kHz Clock Frequency causes the same reset/initializationto occur without• Latch-Up Performance Exceeds 100 mA Per powering down the part.JESD 78, ClassII ESD Protection Exceeds JESD22
Device Information(1) 2000-V Human-Body Model (A114-A)– 200-V Machine Model (A115-A)– 1000-V Charged-Device Model (C101)
(1) Forall available packages, see the orderable addendumat
the endofthe datasheet.
Simplified Schematic
