PCA9511

Selection guide

Datasheet

PCA9511
(Product Specification)
23-Aug-06, 18 pages, 140 kB

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PCA9511 - Hot swappable I2C-bus and SMBus bus buffer

General description
Features
Products/packages
Quality/reliability/chemical content

Pricing/ordering/availability
Samples
Discontinued information
Applications
Block diagrams/pinning

Design support
Parametrics/similar products
Print/email
Disclaimers

Recommended replacement: PCA9511A_3This product has been discontinued. Click here for discontinued information.All information hereunder is subject to the subsequent disclaimers

General description

The PCA9511 is a are hot swappable I²C-bus and SMBus buffer that allows I/O card insertion into a live backplane without corrupting the data and clock buses. Control circuitry prevents the backplane from being connected to the card until a STOP command or bus idle occurs on the backplane without bus contention on the card. When the connection is made, the PCA9511 provides bidirectional buffering, keeping the backplane and card capacitances isolated.

The PCA9511 rise time accelerator circuitry allows the use of weaker DC pull-up currents while still meeting rise time requirements to prevent interference when there are multiple devices in the same system. The PCA9511 incorporates a digital ENABLE input pin, which enables the device when asserted HIGH and forces the device into a low current mode when asserted LOW, and an open-drain READY output pin, which indicates that the backplane and card sides are connected together (HIGH) or not (LOW).

During insertion, the PCA9511 SDA and SCL lines are precharged to 1 V to minimize the current required to charge the parasitic capacitance of the chip.

The dynamic offset design of the PCA9510/11/12/13/14 I/O drivers allow them to be connected to another PCA9510/11/12/13/14 device in series or in parallel and to the A side of the PCA9517. The PCA9510/11/12/13/14 can not connect to the static offset I/Os used on the PCA9515/15A/16/16A/17 B side and PCA9518.

Features

Bidirectional buffer for SDA and SCL lines increases fanout and prevents SDA and SCL corruption during live board insertion and removal from multi-point backplane systems
Compatible with I²C-bus Standard-mode, I²C-bus Fast-mode, and SMBus standards
ΔV/Δt rise time accelerators on all SDA and SCL lines
Rise time accelerator threshold of 0.6 V
Active HIGH ENABLE input
Active HIGH READY open-drain output
High-impedance SDA and SCL pins for V_CC = 0 V
1 V precharge on all SDA and SCL lines
Supports clock stretching and multiple master arbitration/synchronization
Operating power supply voltage range: 2.7 V to 5.5 V
0 Hz to 400 kHz clock frequency
ESD protection exceeds 2000 V HBM per JESD22-A114, 200 V MM per JESD22-A115, and 1000 V CDM per JESD22-C101
Latch-up testing is done to JEDEC Standard JESD78 which exceeds 100 mA
Packages offered: SO8, TSSOP8 (MSOP8)

Products/packages

All type numbers in the table below are discontinued. See the table Discontinued information for more information.

Type number	Orderable part number	Ordering code (12NC)	Product status	Package	Packing	Marking	ECCN
PCA9511DP	PCA9511DP,118	9352 752 28118	Discontinued Replacement product	SOT505	Reel Pack, SMD, 13"	Standard Marking
PCA9511DP/G	PCA9511DP/G,118	9352 780 54118	Discontinued Replacement product	SOT505	Reel Pack, SMD, 13"	Standard Marking

Quality/reliability/chemical content

All type numbers in the table below are discontinued. See the table Discontinued information for more information.

Type number	Orderable part number	Chemical content	RoHS	Leadfree Conversion date	RHF	IRF (FIT)	MTBF (hours)	MSL
PCA9511DP	PCA9511DP,118	PCA9511DP		week 12, 2005
PCA9511DP/G	PCA9511DP/G,118	PCA9511DP_G		Always Pb-free

Quality and reliability disclaimer

Discontinued information

Type number	Ordering code (12NC)	Last-time buy date	Last-time delivery date	Replacement product	DN Notice	Status	Comments
PCA9511DP	935275228118	1-Oct-07	31-Mar-08	$product.prunedProduct.eplacementPart	DN 59	Multi source product Limited availability (check with your usual sales contact) Type number fully withdrawn	Limited Supply.. This is a Boeblingen plant closure discontinued part type.
PCA9511DP/G	935278054118			$product.prunedProduct.eplacementPart	DN

Applications

cPCI, VME, AdvancedTCA cards and other multi-point backplane cards that are required to be inserted or removed from an operating system.

Design support

Application Notes

AN255; I2C / SMBus Repeaters, Hubs and Expanders (2002-12-19)

AN10441; Level shifting techniques in I2C-bus design (2007-06-20)

AN262; PCA954X FAMILY OF I²C / SMBus MULTIPLEXERS and SWITCHES (2004-10-01)

Support Documents

UM10206; I2C Demonstration Board 2005-1 Quick Start Guide (2006-06-13)

UM10204; I2C-bus specification and user manual (2007-06-26)

web; IBIS and HSPICE Model ()

UM10323; PCA9600 demonstration board OM6293 (2008-12-15)

Parametrics/similar products

Type number	Package	Operating temp.(Cel)	I²C-bus(kHz)	Operating voltage(VDC)	Inputs	Outputs
PCA9511DP	SOT505	-40~85	400	2.7~5.5	1	1
PCA9511DP/G	SOT505	-40~85	400	2.7~5.5	1	1

Similar products
PCA9511 links to the similar products page containing an overview of products that are similar in function or related to the type number(s) as listed on this page. The similar products page includes products from the same catalog tree(s), relevant selection guides and products from the same functional category.

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Disclaimers

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