Global Sources
EE Times-Asia
Stay in touch with EE Times Asia
?
?


( File format: PDF, 1021 KB )
PCA9545A (Rev. C)
Texas Instruments

Features
1-of-4 Bidirectional Translating SwitchesI2C Bus and SMBus CompatibleFour Active-Low Interrupt InputsActive-Low Interrupt OutputActive-Low Reset InputTwo Address Pins, Allowing up to Four Devices on the I2C BusChannel Selection Via I2C Bus, In Any CombinationPower Up With All Switch Channels DeselectedLow RON SwitchesAllows Voltage-Level Translation Between 1.8-V, 2.5-V, 3.3-V, and 5-V BusesNo Glitch on Power UpSupports Hot InsertionLow Standby CurrentOperating Power-Supply Voltage Range of 2.3 V to 5.5 V5.5-V Tolerant Inputs0 to 400-kHz Clock FrequencyLatch-Up Performance Exceeds 100 mA Per JESD 78ESD Protection Exceeds JESD 222000-V Human-Body Model (A114-A)200-V Machine Model (A115-A)1000-V Charged-Device Model (C101) 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

Related Datasheets
Part Number Description Category
? ?P82B96 Dual Bidirectional Bus Buffer (Rev. B) EDA - IC Design
? ?PCA9518 Expandable Five-Channel I2C Hub (Rev. A) Power Supplies, Batteries and Accessories
? ?PCA9535 Remote 16-Bit I2C and SMBus, Low-Power I/O Expander (Rev. H) Power Supplies, Batteries and Accessories
? ?PCA9543A Two-Channel I2C-Bus Switch With Interrupt Logic and Reset Power Supplies, Batteries and Accessories
? ?PCA9544A 4-Channel I2C and SMBus Multiplexer With Interrupt Logic (Rev. D) Power Supplies, Batteries and Accessories
? ?PCA9546A 4-Channel I2C and SMBus Switch With Reset Function (Rev. E) Power Supplies, Batteries and Accessories
? ?PCA9548A 8-Channel I2C Switch With Reset (Rev. C) Power Supplies, Batteries and Accessories



As the hyperlinked contents/websites are those of third parties, we cannot vouch for their accuracy or legitimacy.
Interviews & Viewpoints

Talk

Learn how senior executives are seeing the industry from interviews and contributed opinions.

Bloggers Say

Bloggers Say

See what engineers like you are posting on our pages.

?
?
Back to Top