PCA9513; PCA9514

General description

The PCA9513 and PCA9514 are hot swappable I²C and SMBus buffers 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, PCA9513, and PCA9514 provides bi-directional buffering, keeping the backplane and card capacitances isolated.

Rise time accelerator circuitry allows the use of weaker DC pull-up currents while still meeting rise time requirements. The PCA9513 and PCA9514 incorporate 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).

The PCA9513 supplies a 92 uA current source to SCLIN and SDAIN in lieu of using pull-up resistors for PICMG backplane applications. Including the current source in the device provides for a consistent RC time constant as cards are removed and inserted into the backplane. The current source is high-impedance whenever the pin voltage is greater than the part V_CC.

PCA9513 and PCA9514 rise time accelerator threshold is 0.8 V to provide improved noise margin over the PCA9510 and PCA9511.

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

• Bi-directional 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 standard mode, I²C fast mode, and SMBus standards
• ΔV/Δt rise time accelerators on all SDA and SCL lines
• Rise time accelerator threshold moved from 0.6 V to 0.8 V for improved noise margin
• Active HIGH ENABLE input
• Active HIGH READY open-drain output
• High-impedance SDA and SCL pins for V_CC = 0 V
• 92 uA current source on SCLIN and SDAIN for PICMG backplane applications (PCA9513 only)
• Supports clock stretching and multiple master arbitration/synchronization
• Operating power supply voltage range: 2.7 V to 5.5 V
• 5.5 V tolerant I/Os
• 0 kHz 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

Pricing/ordering/availability

Applications

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

Related applications
LCD display - discretes focus
PDA - discretes focus
Motherboard components
50-60 Hz CRT integrated DTV (TV210D)
Mid-range integrated DTV (TV810)
Intelligent washing machine
Transceiver board
Power amplifier board
Main CPU board
LCD TV - MMS functionality

Block diagrams/pinning

Technical documents

Application Notes

AN10441_1; Level shifting techniques in I²C-bus design (20-Jun-07)

AN255_2; I2C / SMBus Repeaters, Hubs and Expanders (19-Dec-02)

AN262_2; PCA954X FAMILY OF I²C / SMBus MULTIPLEXERS and SWITCHES (01-Oct-04)

Support Documents

75015669; Continuous innovation. Timeless lifespan. (01-Sep-06)

75013239; I 2 C Logic Selection Guide (2005-01-12)

75011212; I2C 2002-1A Evaluation Board Kit (01-Mar-03)

75012744; I2C Bus Solutions 2004 (2004-02-01)

UM10206_1; I2C Demonstration Board 2005-1 Quick Start Guide (13-Jun-06)

philips_i2c_handbook; I2C Handbook (2004-01-01)

UM10204_3; I2C-bus specification and user manual (26-Jun-07)

philips_i2c_logic_overview; Interface Products Business Line Specialty Logic Product Line I2C Logic Family Overview (2004-01-01)

75012798; PCA9510/11/12/13/14 Level shifting and hot swappable I 2 C and SMBus bus buffers (2004-02-01)

75012799; PCA9515x/PCA9516x - 2-channel I2C bus repeaters and 5-channel I2C hubs (2004-06-15)

75012789; Philips DQFN package (2004-06-12)

75014395; Your connection to I 2 C,UART,CAN,and USB Connecting with Philips Wired Connectivity (2005-04-01)

Parametrics/similar products

Similar products

PCA9513; PCA9514 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.

Print / Email

• Print this information
• Email this information

Disclaimer

The information published on product information pages of the www.nxp.com or www.semiconductors.com websites is an extract from product data sheets and is for information purposes only. For detailed information please check the most recent version of the relevant product data sheet as published on these websites. In the event of any conflict between product information pages and data sheets or deviations from information provided in the product data sheets on these product information pages, the information provided in the product data sheets shall prevail.

The product status of the product(s) described in the product data sheet may have changed since publication of the data sheet and therefore information in datasheets on product status may be outdated. The latest information on product status is published on the product information pages of the above-mentioned websites.

As from October 1st, 2006 Philips Semiconductors has a new trade name - NXP Semiconductors, which will be used in future data sheets together with new contact details. In data sheets where the previous Philips references remain, please use the new links as shown below.

http://www.philips.semiconductors.com use http://www.nxp.com

http://www.semiconductors.philips.com use http://www.nxp.com (Internet)

sales.addresses@www.semiconductors.philips.com use salesaddresses@nxp.com (e-mail)

The copyright notice at the bottom of each page (or elsewhere in the document, depending on the version)
- © Koninklijke Philips Electronics N.V. (year). All rights reserved -
is replaced with:
- © NXP B.V. (year). All rights reserved.-

If you have any questions related to the data sheet, please contact our nearest sales office via e-mail or phone (details via salesaddresses@nxp.com). Thank you for your cooperation and understanding.