PCA9537DP: 4-bit I2C-bus and SMBus low power I/O port with interrupt and reset
The PCA9537 is a 10-pin CMOS device that provides 4 bits of General Purpose parallel Input/Output (GPIO) expansion with interrupt and reset for I²C-bus/SMBus applications and was developed to enhance the NXP® Semiconductors family of I²C-bus I/O expanders. I/O expanders provide a simple solution when additional I/O is needed for ACPI power switches, sensors, push-buttons, LEDs, fans, etc.
The PCA9537 consists of a 4-bit Configuration register (input or output selection), 4-bit Input Port register, 4-bit Output Port register and a 4-bit Polarity Inversion register (active HIGH or active LOW operation). The system master can enable the I/Os as either inputs or outputs by writing to the I/O configuration bits. The data for each input or output is kept in the corresponding Input Port or Output Port register. The polarity of the Input Port register can be inverted with the Polarity Inversion register. All registers can be read by the system master.
The PCA9537 open-drain interrupt output (INT) is activated when any input state differs from its corresponding Input Port register state and is used to indicate to the system master that an input state has changed. The power-on reset sets the registers to their default values and initializes the device state machine. The RESET pin causes the same reset/initialization to occur without de-powering the device.
The I²C-bus address is fixed and allows only one device on the same I²C-bus/SMBus.
PCA9537DP: Product Block Diagram
sot552-1_3d
Data Sheets (1)
| Name/Description | Modified Date |
|---|---|
| 4-bit I2C-bus and SMBus low power I/O port with interrupt and reset (REV 5.0) PDF (135.0 kB) PCA9537 | 07 May 2009 |
Application Notes (4)
| Name/Description | Modified Date |
|---|---|
| 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 |
| I2C/SMBus general purpose I/O expanders (REV 2.0) PDF (294.0 kB) AN469 | 20 Jan 2005 |
Users Guides (4)
| Name/Description | Modified Date |
|---|---|
| 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 |
Brochures (3)
| Name/Description | Modified Date |
|---|---|
| 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 |
| Versatile, easy-to-use GPIO expanders; NXP® 4/8/16-bit I2C/SMBus GPIO expanders PCA9536/54/54A/55 (REV 1.0) PDF (319.0 kB) 75016535 | 01 Aug 2008 |
| 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 |
Package Information (1)
| Name/Description | Modified Date |
|---|---|
| plastic thin shri small outline package; 10 leads; body width 3 mm (REV 1.1) PDF (256.0 kB) SOT552-1 | 07 Jun 2016 |
Packing (1)
| Name/Description | Modified Date |
|---|---|
| TSSOP10; Reel pack; SMD, 13" Q1/T1 Standard product orientation Orderable part number ending ,118 or... (REV 1.0) PDF (269.0 kB) SOT552-1_118 | 16 Apr 2013 |
Supporting Information (3)
| Name/Description | Modified Date |
|---|---|
| Reflow Soldering Profile (REV 1.0) PDF (34.0 kB) REFLOW_SOLDERING_PROFILE | 30 Sep 2013 |
| Wave Soldering Profile (REV 1.0) PDF (20.0 kB) WAVE_SOLDERING_PROFILE | 30 Sep 2013 |
| Footprint for wave soldering (REV 1.0) PDF (16.0 kB) SSOP-TSSOP-VSO-WAVE | 08 Oct 2009 |
IBIS Model
- PCA9537 IBIS model (REV 1.1) ZIP PCA9537_1 9/2/2014
Ordering Information
| Product | Status | No of bits | VDD [min] (V) | VDD [max] (V) | Over volt tolerant | No of supplies | Standby current [typ] (µA) | Max Sink Current per bit (mA) | Max Sink Current, per package (mA) | Source Current per bit (mA) | Interrupt output pin | Reset input pin | Output mode | Input mode: invert option | Internal pull-up resistor per bit (kOhm) | I2C-bus (kHz) | Footprint body and leads (mm2) | Package name | Package version | Operating Temperature (Cel) | No of Addresses | Remark |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| PCA9537DP | Active | 4 | 2.3 | 5.5 | Y | 1 | 0.25 | 25 | 100 | 10 | Y | Y | Totem pole | Y | 400 | 15.5 | TSSOP10 | SOT552-1 | -40~85 | 1 |
Package Information
| 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| PCA9537DP | | SOT552-1 | Reflow_Soldering_Profile
SSOP-TSSOP-VSO-WAVE Reflow_Soldering_Profile SSOP-TSSOP-VSO-WAVE | Reel 13" Q1/T1 | Active | PCA9537DP,118 (9352 774 95118) | 9537 | PCA9537DP |    | week 13, 2005 | 0.0 | 2.0 | 5E8 | 1 | 1 |
- PCA9537 IBIS model PCA9537DP
- plastic thin shri small outline package; 10 leads; body width 3 mm 74AXP2T08DP-Q100
- Reflow_Soldering_Profile Wave_Soldering_Profile LPC1112FD20
- SSOP-TSSOP-VSO-WAVE LPC1114FDH28
- TSSOP10; Reel pack; SMD, 13" Q1/T1 Standard product orientation Orderable part number ending ,118 or... 74AXP2T08DP-Q100
- PCA9537DP
- PCA9633
