The PCA9505/PCA9506 provide 40-bit parallel input/output (I/O) port expansion for I²C-bus applications organized in 5 banks of 8 I/Os. At 5 V supply voltage, the outputs are capable of sourcing 10 mA and sinking 15 mA with a total package load of 600 mA to allow direct driving of 40 LEDs. Any of the 40 I/O ports can be configured as an input or output. Output ports are totem-pole and their logic state changes at the Acknowledge (bank change). The PCA9505 is identical to the PCA9506 except that it includes 100 kΩ internal pull-up resistors on all the I/Os. The PCA9506 does not include the internal pull-ups on the I/Os to reduce power consumption when used as outputs or when the input is driven by a push-pull driver.
The device can be configured to have each input port to be masked in order to prevent it from generating interrupts when its state changes and to have the I/O data logic state to be inverted when read by the system master.
An open-drain interrupt (INT) output pin allows monitoring of the input pins and is asserted each time a change occurs in one or several input ports (unless masked).
The Output Enable (OE) pin 3-states any I/O selected as an output and can be used as an input signal to blink or dim LEDs (PWM with frequency > 80 Hz and change duty cycle).
The internal Power-On Reset (POR) or hardware reset (RESET) pin initializes the 40 I/Os as inputs. Three address select pins configure one of 8 slave addresses.
The PCA9506 is available in 56-pin TSSOP and HVQFN packages, while the PCA9505 is available only in a TSSOP package. They are both specified over the -40 Cel to +85 Cel industrial temperature range.
Name/Description | Modified Date |
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40-bit I2C-bus I/O port with RESET, OE and INT (REV 4.0) PDF (266.0 kB) PCA9505_9506 | 03 Aug 2010 |
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Driving stepper motors using NXP® I2C-bus GPIO expanders (REV 2.0) PDF (275.0 kB) AN10814 | 24 Oct 2011 |
PCA9500/PCA9501 provides simple card maintenance and control using I²C-bus (REV 1.0) PDF (90.0 kB) AN256 | 23 Mar 2009 |
Level shifting techniques in I2C-bus design (REV 1.0) PDF (52.0 kB) AN10441 | 20 Jun 2007 |
Name/Description | Modified Date |
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I2C-bus specification and user manual (REV 6.0) PDF (1.4 MB) UM10204 | 28 Apr 2014 |
I2C-bus specification and user manual (REV 5.0) PDF (1.6 MB) UM10204_JA | 03 Apr 2013 |
PCA9698 demonstration board OM6281 (REV 1.0) PDF (558.0 kB) UM10267 | 26 Sep 2008 |
I2C Demonstration Board 2005-1 Quick Start Guide (REV 1.0) PDF (261.0 kB) UM10206 | 13 Jun 2006 |
Name/Description | Modified Date |
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NXP® I2C-bus solutions 2014: Smart, simple solutions for the 12 most common design concerns (REV 1.0) PDF (3.5 MB) 75017540 | 01 Aug 2014 |
Create smarter, more efficient white goods; An industry-leading portfolio of cost-effective, power-saving solutions for... (REV 1.0) PDF (1.1 MB) 75016543 | 01 Jun 2008 |
Name/Description | Modified Date |
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plastic thin shrink small outline package; 56 leads; body width 6.1 mm (REV 1.0) PDF (506.0 kB) SOT364-1 | 08 Feb 2016 |
plastic thermal enhanced very thin quad flat package; no leads; 56 terminals; body 8 x 8 x 0.85 mm (REV 1.0) PDF (223.0 kB) SOT684-1 | 08 Feb 2016 |
Name/Description | Modified Date |
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HVQFN56; Reel pack; SMD, 13" Q1/T1 Standard product orientation Orderable part number ending ,118 or... (REV 1.0) PDF (183.0 kB) SOT684-1_118 | 18 Apr 2013 |
TSSOP56; Reel pack; SMD, 13" Q1/T1 Standard product orientation Orderable part number ending ,118 or... (REV 4.0) PDF (248.0 kB) SOT364-1_118 | 15 Apr 2013 |
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Footprint for wave soldering (REV 1.0) PDF (16.0 kB) SSOP-TSSOP-VSO-WAVE | 08 Oct 2009 |
Product | Status |
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PCA9505DGG | Active |
PCA9506DGG | Active |
PCA9506BS | Active |
Product ID | Package Description | Outline Version | Reflow/Wave Soldering | Packing | Product Status | Part NumberOrdering code(12NC) | Marking | Chemical Content | RoHS / Pb Free / RHF | LeadFree Conversion Date | EFR | IFR(FIT) | MTBF(hour) | MSL | MSL LF |
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
PCA9506BS | SOT684-1 | Reel 13" Q1/T1 | Active | PCA9506BS,118 (9352 815 75118) | PCA9506BS | PCA9506BS | Always Pb-free | 0.0 | 2.0 | 5E8 | 1 | 1 | |||
PCA9505DGG | SOT364-1 | SSOP-TSSOP-VSO-WAVE | Reel 13" Q1/T1 | Active | PCA9505DGG,118 (9352 844 86118) | PCA9505DGG | PCA9505DGG | Always Pb-free | 0.0 | 2.0 | 5E8 | 1 | 1 | ||
Bulk Pack | Active | PCA9505DGG,112 (9352 844 86112) | PCA9505DGG | PCA9505DGG | Always Pb-free | 0.0 | 2.0 | 5E8 | 1 | 1 | |||||
PCA9506DGG | SOT364-1 | SSOP-TSSOP-VSO-WAVE | Reel 13" Q1/T1 in Drypack | Active | PCA9506DGG,518 (9352 807 98518) | PCA9506DGG | PCA9506DGG | Always Pb-free | 0.0 | 2.0 | 5E8 | 3 | 3 | ||
Tube in Drypack | Active | PCA9506DGG,512 (9352 807 98512) | PCA9506DGG | PCA9506DGG | Always Pb-free | 0.0 | 2.0 | 5E8 | 3 | 3 |