PCA8550 | NXP Semiconductors

4-Bit Multiplexed/1-Bit Latched 5-Bit I²C EEPROM DIP Switch

See product image

Product Details

Block Diagram

PCA8550 Block Diagram

PCA8550 Block Diagram

Features

Key Features

  • 4-bit 2-to-1 multiplexer, 1-bit latch DIP switch
  • 5-bit internal non-volatile register
  • Override input forces all outputs to logic 0
  • Internal non-volatile register write/readable via I²C-bus
  • Write-protect pin enables/disables I²C writes to register
  • 2.5 V multiplexed outputs
  • 3.3 V non-multiplexed output (latched)
  • 5 V tolerant inputs
  • Useful for "jumperless" configuration of PC motherboards
  • Designed for use in Pentium Pro/Pentium II systems

Buy/Parametrics










































































































N true 0 PSPPCA8550en 11 Application Note Application Note t789 2 Data Sheet Data Sheet t520 1 Package Information Package Information t790 2 Packing Information Packing Information t935 1 Supporting Information Supporting Information t531 3 User Guide User Guide t792 2 en_US en_US en Data Sheet Data Sheet 1 1 7.0 English 1442064748000704221924 PSP 559.8 KB None None documents None 1442064748000704221924 /docs/en/data-sheet/PCA8550.pdf 559771 /docs/en/data-sheet/PCA8550.pdf PCA8550 documents N N 2015-04-09 4-bit multiplexed/1-bit latched 5-bit I2C EEPROM DIP switch /docs/en/data-sheet/PCA8550.pdf /docs/en/data-sheet/PCA8550.pdf Data Sheet N 980000996212993340 2023-08-31 pdf N en Apr 8, 2015 980000996212993340 Data Sheet Y N 4-bit multiplexed/1-bit latched 5-bit I2C EEPROM DIP switch Application Note Application Note 2 2 1.0 English 1442087689485731980491 PSP 4.3 MB None None documents None 1442087689485731980491 /docs/en/application-note/AN10216.pdf 4320295 /docs/en/application-note/AN10216.pdf AN10216 documents N N 2016-07-05 AN10216 /docs/en/application-note/AN10216.pdf /docs/en/application-note/AN10216.pdf Application Note N 645036621402383989 2024-10-21 pdf N en Mar 27, 2003 645036621402383989 Application Note Y N AN10216 3 1.0 English 1442088334596710937603 PSP 61.3 KB None None documents None 1442088334596710937603 /docs/en/application-note/AN250.pdf 61347 /docs/en/application-note/AN250.pdf AN250_1 documents N N 2011-06-30 AN250_1 /docs/en/application-note/AN250.pdf /docs/en/application-note/AN250.pdf Application Note N 645036621402383989 2022-12-07 pdf N en Oct 1, 1998 645036621402383989 Application Note Y N AN250_1 User Guide User Guide 2 4 6.0 Japanese 1442125286808710770774ja PSP 751.0 KB None None documents None 1442125286808710770774 /docs/ja/user-guide/UM10204.pdf 750958 /docs/ja/user-guide/UM10204.pdf UM10204 documents N N 2016-07-12 I2C-bus specification and user manual /docs/ja/user-guide/UM10204.pdf /docs/ja/user-guide/UM10204.pdf User Guide N 132339537837198660 2024-10-24 ja Apr 28, 2014 132339537837198660 User Guide Y N I2C-bus specification and user manual 7.0 English NXP Semiconductors developed a simple bidirectional 2-wire bus for efficient inter-IC control. This bus is called the Inter-IC or I2C-bus. Only two bus lines are required: a serial data line (SDA) and a serial clock line (SCL). Serial, 8-bit oriented, bidirectional data transfers can be made at up to 100 kbit/s in the Standard-mode, up to 400 kbit/s in the Fast-mode, up to 1 Mbit/s in the Fast-mode Plus (Fm+), or up to 3.4 Mbit/s in the High-speed mode. 1442125286808710770774 PSP 751.0 KB None None documents None 1442125286808710770774 /docs/en/user-guide/UM10204.pdf 750958 /docs/en/user-guide/UM10204.pdf UM10204 documents N N 2016-07-12 I2C-bus specification and user manual /docs/en/user-guide/UM10204.pdf /docs/en/user-guide/UM10204.pdf User Guide N 132339537837198660 2024-10-24 pdf N en Oct 1, 2021 132339537837198660 User Guide Y N I2C-bus specification and user manual 5 1.0 English 1442125429801702674389 PSP 749.6 KB Registration without Disclaimer None documents Extended 1442125429801702674389 /secured/assets/documents/en/user-guide/UM10528.pdf 749626 /secured/assets/documents/en/user-guide/UM10528.pdf UM10528 documents Y N 2012-02-06 PCA9632 demonstration board OM13269 /webapp/Download?colCode=UM10528 /secured/assets/documents/en/user-guide/UM10528.pdf User Guide N 132339537837198660 2025-02-10 pdf Y en Feb 6, 2012 132339537837198660 User Guide Y N PCA9632 demonstration board OM13269 Package Information Package Information 2 6 1.2 English 1455079016613696797754 PSP 298.1 KB None None documents None 1455079016613696797754 /docs/en/package-information/SOT403-1.pdf 298149 /docs/en/package-information/SOT403-1.pdf SOT403-1 documents N N 2016-10-08 plastic, thin shrink small outline package; 16 leads; 0.65 mm pitch; 5 mm x 4.4 mm x 1.1 mm body /docs/en/package-information/SOT403-1.pdf /docs/en/package-information/SOT403-1.pdf Package Information N 302435339416912908 2024-10-24 pdf N en Dec 10, 2019 302435339416912908 Package Information Y N plastic, thin shrink small outline package; 16 leads; 0.65 mm pitch; 5 mm x 4.4 mm x 1.1 mm body PDF 7 1.0 English 1455078833317715228463 PSP 313.1 KB None None documents None 1455078833317715228463 /docs/en/package-information/SOT338-1.pdf 313093 /docs/en/package-information/SOT338-1.pdf SOT338-1 documents N N 2016-02-12 plastic shrink small outline package; 16 leads; body width 5.3 mm /docs/en/package-information/SOT338-1.pdf /docs/en/package-information/SOT338-1.pdf Package Information N 302435339416912908 2022-12-07 pdf N en Feb 8, 2016 302435339416912908 Package Information Y N plastic shrink small outline package; 16 leads; body width 5.3 mm Packing Information Packing Information 1 8 1.0 English 1442131582751712117334 PSP 223.6 KB None None documents None 1442131582751712117334 /docs/en/packing/SOT403-1_118.pdf 223589 /docs/en/packing/SOT403-1_118.pdf SOT403-1_118 documents N N 2013-04-17 TSSOP16; Reel pack; SMD, 13" Q1/T1 Standard product orientation Orderable part number ending ,118 or J Ordering code (12NC) ending 118 /docs/en/packing/SOT403-1_118.pdf /docs/en/packing/SOT403-1_118.pdf Packing Information N 145666923842250347 2024-10-21 pdf N en Apr 8, 2013 145666923842250347 Packing Information Y N TSSOP16; Reel pack; SMD, 13" Q1/T1 Standard product orientation Orderable part number ending ,118 or J Ordering code (12NC) ending 118 Supporting Information Supporting Information 3 9 1.0 English Footprint for Wave Soldering 1442126382106720903168 PSP 8.3 KB None None documents None 1442126382106720903168 /docs/en/supporting-information/SO-SOJ-WAVE.pdf 8260 /docs/en/supporting-information/SO-SOJ-WAVE.pdf SO-SOJ-WAVE documents N N 2013-07-15 Footprint for Wave Soldering /docs/en/supporting-information/SO-SOJ-WAVE.pdf /docs/en/supporting-information/SO-SOJ-WAVE.pdf Supporting Information N 371282830530968666 2024-10-21 pdf N en Oct 8, 2009 371282830530968666 Supporting Information Y N Footprint for Wave Soldering 10 1.0 English 1442122474166700526113 PSP 16.4 KB None None documents None 1442122474166700526113 /docs/en/supporting-information/SSOP-TSSOP-VSO-REFLOW.pdf 16447 /docs/en/supporting-information/SSOP-TSSOP-VSO-REFLOW.pdf SSOP-TSSOP-VSO-REFLOW documents N N 2013-07-15 Footprint for reflow soldering /docs/en/supporting-information/SSOP-TSSOP-VSO-REFLOW.pdf /docs/en/supporting-information/SSOP-TSSOP-VSO-REFLOW.pdf Supporting Information N 371282830530968666 2023-08-14 pdf N en Oct 8, 2009 371282830530968666 Supporting Information Y N Footprint for reflow soldering 11 1.0 English Footprint for reflow soldering 1442122730480711091281 PSP 8.8 KB None None documents None 1442122730480711091281 /docs/en/supporting-information/SO-SOJ-REFLOW.pdf 8792 /docs/en/supporting-information/SO-SOJ-REFLOW.pdf SO-SOJ-REFLOW documents N N 2013-07-15 Footprint for reflow soldering /docs/en/supporting-information/SO-SOJ-REFLOW.pdf /docs/en/supporting-information/SO-SOJ-REFLOW.pdf Supporting Information N 371282830530968666 2024-10-21 pdf N en Oct 8, 2009 371282830530968666 Supporting Information Y N Footprint for reflow soldering false 0 PCA8550 downloads en true 1 Y PSP Y Y Application Note 2 /docs/en/application-note/AN10216.pdf 2016-07-05 1442087689485731980491 PSP 2 Mar 27, 2003 Application Note None /docs/en/application-note/AN10216.pdf English documents 4320295 None 645036621402383989 2024-10-21 N /docs/en/application-note/AN10216.pdf AN10216 /docs/en/application-note/AN10216.pdf documents 645036621402383989 Application Note N en None Y pdf 1.0 N N AN10216 4.3 MB AN10216 N 1442087689485731980491 /docs/en/application-note/AN250.pdf 2011-06-30 1442088334596710937603 PSP 3 Oct 1, 1998 Application Note None /docs/en/application-note/AN250.pdf English documents 61347 None 645036621402383989 2022-12-07 N /docs/en/application-note/AN250.pdf AN250_1 /docs/en/application-note/AN250.pdf documents 645036621402383989 Application Note N en None Y pdf 1.0 N N AN250_1 61.3 KB AN250_1 N 1442088334596710937603 Data Sheet 1 /docs/en/data-sheet/PCA8550.pdf 2015-04-09 1442064748000704221924 PSP 1 Apr 8, 2015 Data Sheet None /docs/en/data-sheet/PCA8550.pdf English documents 559771 None 980000996212993340 2023-08-31 N /docs/en/data-sheet/PCA8550.pdf 4-bit multiplexed/1-bit latched 5-bit I2C EEPROM DIP switch /docs/en/data-sheet/PCA8550.pdf documents 980000996212993340 Data Sheet N en None Y pdf 7.0 N N 4-bit multiplexed/1-bit latched 5-bit I2C EEPROM DIP switch 559.8 KB PCA8550 N 1442064748000704221924 Package Information 2 /docs/en/package-information/SOT403-1.pdf 2016-10-08 1455079016613696797754 PSP 6 Dec 10, 2019 Package Information PDF None /docs/en/package-information/SOT403-1.pdf English documents 298149 None 302435339416912908 2024-10-24 N /docs/en/package-information/SOT403-1.pdf plastic, thin shrink small outline package; 16 leads; 0.65 mm pitch; 5 mm x 4.4 mm x 1.1 mm body /docs/en/package-information/SOT403-1.pdf documents 302435339416912908 Package Information N en None Y pdf 1.2 N N plastic, thin shrink small outline package; 16 leads; 0.65 mm pitch; 5 mm x 4.4 mm x 1.1 mm body 298.1 KB SOT403-1 N 1455079016613696797754 /docs/en/package-information/SOT338-1.pdf 2016-02-12 1455078833317715228463 PSP 7 Feb 8, 2016 Package Information None /docs/en/package-information/SOT338-1.pdf English documents 313093 None 302435339416912908 2022-12-07 N /docs/en/package-information/SOT338-1.pdf plastic shrink small outline package; 16 leads; body width 5.3 mm /docs/en/package-information/SOT338-1.pdf documents 302435339416912908 Package Information N en None Y pdf 1.0 N N plastic shrink small outline package; 16 leads; body width 5.3 mm 313.1 KB SOT338-1 N 1455078833317715228463 Packing Information 1 /docs/en/packing/SOT403-1_118.pdf 2013-04-17 1442131582751712117334 PSP 8 Apr 8, 2013 Packing Information None /docs/en/packing/SOT403-1_118.pdf English documents 223589 None 145666923842250347 2024-10-21 N /docs/en/packing/SOT403-1_118.pdf TSSOP16; Reel pack; SMD, 13" Q1/T1 Standard product orientation Orderable part number ending ,118 or J Ordering code (12NC) ending 118 /docs/en/packing/SOT403-1_118.pdf documents 145666923842250347 Packing Information N en None Y pdf 1.0 N N TSSOP16; Reel pack; SMD, 13" Q1/T1 Standard product orientation Orderable part number ending ,118 or J Ordering code (12NC) ending 118 223.6 KB SOT403-1_118 N 1442131582751712117334 Supporting Information 3 /docs/en/supporting-information/SO-SOJ-WAVE.pdf 2013-07-15 1442126382106720903168 PSP 9 Oct 8, 2009 Supporting Information Footprint for Wave Soldering None /docs/en/supporting-information/SO-SOJ-WAVE.pdf English documents 8260 None 371282830530968666 2024-10-21 N /docs/en/supporting-information/SO-SOJ-WAVE.pdf Footprint for Wave Soldering /docs/en/supporting-information/SO-SOJ-WAVE.pdf documents 371282830530968666 Supporting Information N en None Y pdf 1.0 N N Footprint for Wave Soldering 8.3 KB SO-SOJ-WAVE N 1442126382106720903168 /docs/en/supporting-information/SSOP-TSSOP-VSO-REFLOW.pdf 2013-07-15 1442122474166700526113 PSP 10 Oct 8, 2009 Supporting Information None /docs/en/supporting-information/SSOP-TSSOP-VSO-REFLOW.pdf English documents 16447 None 371282830530968666 2023-08-14 N /docs/en/supporting-information/SSOP-TSSOP-VSO-REFLOW.pdf Footprint for reflow soldering /docs/en/supporting-information/SSOP-TSSOP-VSO-REFLOW.pdf documents 371282830530968666 Supporting Information N en None Y pdf 1.0 N N Footprint for reflow soldering 16.4 KB SSOP-TSSOP-VSO-REFLOW N 1442122474166700526113 /docs/en/supporting-information/SO-SOJ-REFLOW.pdf 2013-07-15 1442122730480711091281 PSP 11 Oct 8, 2009 Supporting Information Footprint for reflow soldering None /docs/en/supporting-information/SO-SOJ-REFLOW.pdf English documents 8792 None 371282830530968666 2024-10-21 N /docs/en/supporting-information/SO-SOJ-REFLOW.pdf Footprint for reflow soldering /docs/en/supporting-information/SO-SOJ-REFLOW.pdf documents 371282830530968666 Supporting Information N en None Y pdf 1.0 N N Footprint for reflow soldering 8.8 KB SO-SOJ-REFLOW N 1442122730480711091281 User Guide 2 /docs/en/user-guide/UM10204.pdf 2016-07-12 1442125286808710770774 PSP 4 Oct 1, 2021 User Guide NXP Semiconductors developed a simple bidirectional 2-wire bus for efficient inter-IC control. This bus is called the Inter-IC or I2C-bus. Only two bus lines are required: a serial data line (SDA) and a serial clock line (SCL). Serial, 8-bit oriented, bidirectional data transfers can be made at up to 100 kbit/s in the Standard-mode, up to 400 kbit/s in the Fast-mode, up to 1 Mbit/s in the Fast-mode Plus (Fm+), or up to 3.4 Mbit/s in the High-speed mode. None /docs/en/user-guide/UM10204.pdf English documents 750958 None 132339537837198660 2024-10-24 N /docs/en/user-guide/UM10204.pdf I2C-bus specification and user manual /docs/en/user-guide/UM10204.pdf documents 132339537837198660 User Guide N en None Y pdf 7.0 N N I2C-bus specification and user manual 751.0 KB UM10204 N 1442125286808710770774 /secured/assets/documents/en/user-guide/UM10528.pdf 2012-02-06 1442125429801702674389 PSP 5 Feb 6, 2012 User Guide Registration without Disclaimer /secured/assets/documents/en/user-guide/UM10528.pdf English documents 749626 None 132339537837198660 2025-02-10 Y /webapp/Download?colCode=UM10528 PCA9632 demonstration board OM13269 /secured/assets/documents/en/user-guide/UM10528.pdf documents 132339537837198660 User Guide N en Extended Y pdf 1.0 Y N PCA9632 demonstration board OM13269 749.6 KB UM10528 N 1442125429801702674389 true Y Products

Documentation

Quick reference to our documentation types.

1-10 of 11 documents

Compact List

Application Note (2)
  • AN10216[AN10216]
  • AN250_1[AN250_1]
Data Sheet (1)
Package Information (2)
Packing Information (1)
Supporting Information (3)
User Guide (2)
Show All

Design Files

Quick reference to our design files types.

5 design files

Engineering Services

2 engineering services

To find additional partner offerings that support this product, visit our Partner Marketplace.

Support

What do you need help with?

Recently viewed products

View or edit your browsing history