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PCA9515

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Datasheet

PCA9515
(Product Specification)
23-Apr-09, 16 pages, 95 kB

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PCA9515 - I2C-bus repeater

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
All information hereunder is subject to the subsequent disclaimers

General description

The PCA9515 is a BiCMOS integrated circuit intended for application in I2C-bus and SMBus systems.

While retaining all the operating modes and features of the I2C-bus system, it permits extension of the I2C-bus by buffering both the data (SDAn) and the clock (SCLn) lines, thus enabling two buses of 400 pF.

The I2C-bus capacitance limit of 400 pF restricts the number of devices and bus length. Using the PCA9515 enables the system designer to isolate two halves of a bus, thus more devices or longer length can be accommodated. It can also be used to run two buses, one at 5 V and the other at 3.3 V or a 400 kHz and 100 kHz bus, where the 100 kHz bus is isolated when 400 kHz operation of the other is required.

Two or more PCA9515s cannot be put in series. The PCA9515 design does not allow this configuration. Since there is no direction pin, slightly different 'legal' low voltage levels are used to avoid lock-up conditions between the input and the output. A 'regular low' applied at the input of a PCA9515 will be propagated as a 'buffered low' with a slightly higher value. When this 'buffered low' is applied to another PCA9515, PCA9516A, or PCA9518A in series, the second PCA9515, PCA9516A, or PCA9518A will not recognize it as a 'regular low' and will not propagate it as a 'buffered low' again. The PCA9510A/9511A/9513A/9514A and PCA9512A cannot be used in series with the PCA9515, PCA9516A, or PCA9518A but can be used in series with themselves since they use shifting instead of static offsets to avoid lock-up conditions.

The PCA9515 SCLn/SDAn Ci is about 200 pF versus the normal < 10 pF when VCC = 0 V. The newer PCA9515A should be used in applications where power is secured to the repeater but an active bus remains on either set of SCLn/SDAn pins to prevent this increase in bus loading. Additionally, the PCA9515A has a wider voltage range of 2.3 V to 3.6 V and can be used in applications with lower voltage supply constraints.

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Features

  • 2 channel, bidirectional buffer
  • I2C-bus and SMBus compatible
  • Active HIGH repeater enable input
  • Open-drain input/outputs
  • Lock-up free operation
  • Supports arbitration and clock stretching across the repeater
  • Accommodates Standard-mode and Fast-mode I2C-bus devices and multiple masters
  • Powered-off high-impedance I2C-bus pins
  • Operating supply voltage range of 3.0 V to 3.6 V
  • 5.5 V tolerant I2C-bus (SCLn, SDAn) and enable (EN) pins
  • 0 Hz to 400 kHz clock frequency1
  • 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 and TSSOP8 (MSOP8)

1. The maximum system operating frequency may be less than 400 kHz because of the delays added by the repeater.

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Products/packages

Type numberOrderable part numberOrdering code (12NC)Product statusPackagePackingMarkingECCN
PCA9515DPCA9515D,1129352 686 51112Volume productionSOT96TubeStandard Marking
PCA9515DPCA9515D,1189352 686 51118Volume productionSOT96Reel Pack, SMD, 13"Standard Marking
PCA9515DPPCA9515DP,1189352 686 35118Volume productionSOT505Reel Pack, SMD, 13"Standard Marking
PCA9515DP/GPCA9515DP/G,1189352 764 94118Volume productionSOT505Reel Pack, SMD, 13"Standard Marking

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Quality/reliability/chemical content

Type numberOrderable part numberChemical contentRoHSLeadfree Conversion dateRHFIRF (FIT)MTBF (hours)MSL
PCA9515DPCA9515D,112PCA9515D
week 5, 2005
PCA9515DPCA9515D,118PCA9515D
week 5, 2005
PCA9515DPPCA9515DP,118PCA9515DP
week 12, 2005
PCA9515DP/GPCA9515DP/G,118PCA9515DP_G
week 13, 2005

Quality and reliability disclaimer

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Pricing/ordering/availability

Type numberOrdering code(12NC)Orderable part numberIndicative price/unit($)RegionDistributorIn stockOrder quantityInventory dateBuy onlineSamples
PCA9515D9352 686 51112  PCA9515D,112  1.0200NAMOUSER ELECTRONICS1,937 11/20/2009Buy onlinenot available
    NAARROW ELECTRONICS30 11/19/2009Buy online 
    NADIGI-KEY CORPORATION712 11/20/2009Buy online 
    NAMOUSER ELECTRONICS1,937 11/20/2009Buy online 
    NAAVNET ELECTRONICS MARKETING1,950 11/19/2009Buy online 
PCA9515D9352 686 51118  PCA9515D,118  1.0200NAARROW ELECTRONICS30 11/19/2009Buy onlinenot available
    NAFUTURE ELECTRONICS1,500 11/19/2009Buy online 
    ASIASAC - Taiwanyes250011/20/2009Buy online 
PCA9515DP9352 686 35118  PCA9515DP,118  1.0200NAMOUSER ELECTRONICS714 11/20/2009Buy onlinenot available
    NAMOUSER ELECTRONICS714 11/20/2009Buy online 
PCA9515DP/G9352 764 94118  PCA9515DP/G,118        not available
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Block diagrams/pinning

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Parametrics/similar products

Type numberPackageOperating
temp.(Cel)		I²C-bus(kHz)Operating voltage(VDC)InputsOutputs
PCA9515DSOT96
-40~854003.0~3.611
PCA9515DPSOT505
-40~854003.0~3.611
PCA9515DP/GSOT505
-40~854003.0~3.611


Similar products
PCA9515 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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