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PCA9559

Selection guide

Datasheet

PCA9559
(Product Specification)
27-Jun-03, 11 pages, 83 kB

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PCA9559 - 5-bit multiplexed/1-bit latched 6-bit I2C EEPROM DIP switch

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 PCA9559 is a 20-pin CMOS device consisting of one 6-bit non-volatile EEPROM registers, 5 hardware pin inputs and a 5-bit multiplexed output with one latched EEPROM bit. It is used for DIP switch-free or jumper-less system configuration and supports Mobile and Desktop VID Configuration, where 2 preset values (1 set of internal non-volatile registers and 1 set of external hardware pins) set processor voltage for operation in either performance or deep sleep modes. The PCA9559 is also useful in server and telecom/networking applications when used to replace DIP switches or jumpers, since the settings can be easily changed via I2C/SMBus without having to power down the equipment to open the cabinet. The non-volatile memory retains the most current setting selected before the power is turned off.

The PCA9559 typically resides between the CPU and Voltage Regulator Module (VRM) when used for CPU VID (Voltage IDentification code) configuration. It is used to bypass the CPU-defined VID values and provide a different set of VID values the VRM, if an increase in the CPU voltage is desired. An increase in CPU voltage combined with an increase in CPU frequency leads to a performance boost of up to 7.5pct. Lower CPU voltage reduces power consumption.

The PCA9559 has 2 address pins allowing up to 4 devices to be placed on the same I2C-bus or SMBus.

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Features

  • 5-bit 2-to-1 multiplexer, 1-bit latch DIP switch
  • 6-bit internal non-volatile register
  • Internal non-volatile register programmable and readable via I2C-bus
  • Override input forces all outputs to logic 0
  • 5 open drain multiplexed outputs
  • 1 open drain non-multiplexed (latched) output
  • 5 V and 2.5 V tolerant inputs
  • Useful for ?jumperless? configuration of PC motherboards
  • 2 address pins, allowing up to 4 devices on the I2C-bus
  • 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 JESDEC Standard JESD78 which exceeds 100 mA

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Products/packages

Type numberOrderable part numberOrdering code (12NC)Product statusPackagePackingMarkingECCN
PCA9559PWPCA9559PW,1129352 653 06112Volume productionSOT360TubeStandard Marking
PCA9559PWPCA9559PW,1189352 653 06118Volume productionSOT360Reel Pack, SMD, 13"Standard Marking
PCA9559PW/GPCA9559PW/G,1129352 787 12112Volume productionSOT360TubeStandard Marking
PCA9559PW/GPCA9559PW/G,1189352 787 12118Volume productionSOT360Reel Pack, SMD, 13"Standard Marking

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Quality/reliability/chemical content

Type numberOrderable part numberChemical contentRoHSLeadfree Conversion dateRHFIRF (FIT)MTBF (hours)MSL
PCA9559PWPCA9559PW,112PCA9559PW
week 13, 2005
PCA9559PWPCA9559PW,118PCA9559PW
week 13, 2005
PCA9559PW/GPCA9559PW/G,112PCA9559PW_G
week 13, 2005
PCA9559PW/GPCA9559PW/G,118PCA9559PW_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
PCA9559PW9352 653 06112  PCA9559PW,112  0.9400NAARROW ELECTRONICS1,894 11/19/2009Buy onlinenot available
    NADIGI-KEY CORPORATION1,633 11/20/2009Buy online 
PCA9559PW9352 653 06118  PCA9559PW,118  0.9400NAMOUSER ELECTRONICS2,490 11/20/2009Buy onlineOrder samples
    NAARROW ELECTRONICS1,894 11/19/2009Buy online 
    NAMOUSER ELECTRONICS2,490 11/20/2009Buy online 
    NAFUTURE ELECTRONICS200 11/19/2009Buy online 
PCA9559PW/G9352 787 12112  PCA9559PW/G,112        not available
PCA9559PW/G9352 787 12118  PCA9559PW/G,118        Order samples
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Applications


Related applications
Intelligent washing machine

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Block diagrams/pinning

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Parametrics/similar products

Type numberPackageOperating
temp.(Cel)		I²C-bus(kHz)Operating voltage(VDC)# of Outputs/Latched Outputs/Internal EEPROM RegistersMax Sink Current per bit(mA)# of AddressesMax Sink Current
per package(mA)
PCA9559PWSOT360
0~704003.0~3.65?1?120480
PCA9559PW/GSOT360
0~704003.0~3.65?1?120480


Similar products
PCA9559 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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