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PCA9546APWRE4 Datasheet(PDF) 1 Page - Texas Instruments |
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PCA9546APWRE4 Datasheet(HTML) 1 Page - Texas Instruments |
1 / 29 page 1 FEATURES DESCRIPTION/ORDERING INFORMATION PCA9546A 4-CHANNEL I2C AND SMBus SWITCH WITH RESET FUNCTION SCPS148E – OCTOBER 2005 – REVISED JANUARY 2008 www.ti.com • 1-of-4 Bidirectional Translating Switches • Low Standby Current • I2C Bus and SMBus Compatible • Operating Power-Supply Voltage Range of 2.3 V to 5.5 V • Active-Low Reset Input • 5.5-V Tolerant Inputs • Three Address Pins, Allowing up to Eight Devices on the I2C Bus • 0 to 400-kHz Clock Frequency • Channel Selection Via I2C Bus • Latch-Up Performance Exceeds 100 mA Per JESD 78 • Power Up With All Switch Channels Deselected • ESD Protection Exceeds JESD 22 • Low R ON Switches – 2000-V Human-Body Model (A114-A) • Allows Voltage-Level Translation Between – 200-V Machine Model (A115-A) 1.8-V, 2.5-V, 3.3-V, and 5-V Buses – 1000-V Charged-Device Model (C101) • No Glitch on Power Up • Supports Hot Insertion The PCA9546A 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. An active-low reset (RESET) input allows the PCA9546A 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. ORDERING INFORMATION TA PACKAGE(1)(2) ORDERABLE PART NUMBER TOP-SIDE MARKING QFN – RGV Reel of 2500 PCA9546ARGVR PD546A QFN – RGY Reel of 1000 PCA9546ARGYR PD546A PCA9546AD Tube of 40 PCA9546ADG4 PCA9546ADR SOIC – D Reel of 2500 PCA9546A PCA9546ADRG4 PCA9546ADT Reel of 250 PCA9546ADTG4 Tube of 40 PCA9546ADW PCA9546A –40 °C to 85°C SOIC – DW Reel of 2000 PCA9546ADWR Reel of 250 PCA9546ADWT PREVIEW PCA9546APW Tube of 90 PCA9546APWE4 PCA9546APWR TSSOP – PW Reel of 2000 PD546A PCA9546APWRE4 PCA9546APWT Reel of 250 PCA9546APWTE4 Reel of 2000 PCA9546ADGVR PD546A TVSOP – DGV Reel of 250 PCA9546ADGVT PREVIEW (1) For the most current package and ordering information, see the Package Option Addendum at the end of this document, or see the TI website at www.ti.com. (2) Package drawings, thermal data, and symbolization are available at www.ti.com/packaging. 1 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 © 2005–2008, 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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