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PCA9539; PCA9539R
General description
The PCA9539; PCA9539R is a 24-pin CMOS device that provides 16 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 PCA9539; PCA9539R consists of two 8-bit configuration (input or output selection), input, output and polarity inversion (active HIGH or active LOW operation) registers. 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 or Output register. The polarity of the read register can be inverted with the Polarity inversion register. All registers can be read by the system master.
The PCA9539; PCA9539R is identical to the PCA9555 except for the removal of the internal I/O pull-up resistor which greatly reduces power consumption when the I/Os are held LOW, replacement of A2 with RESET and a different address range.
The PCA9539; PCA9539R open-drain interrupt output 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. In the PCA9539, the RESET pin causes the same reset/default I/O input configuration to occur without de-powering the device, holding the registers and I2C-bus state machine in their default state until the RESET input is once again HIGH. This input requires a pull-up to VDD. In the PCA9539R however, only the device state machine is initialized by the RESET pin and the internal general-purpose registers remain unchanged. Using the PCA9539R RESET pin will only reset the I2C-bus interface should it be stuck LOW to regain access to the I2C-bus. This allows the I/O pins to retain their last configured state so that they can keep any lines in their previously defined state and not cause system errors while the I2C-bus is being restored.
Two hardware pins (A0, A1) vary the fixed I2C-bus address and allow up to four devices to share the same I2C-bus/SMBus.
Features
- 16-bit I2C-bus GPIO with interrupt and reset
- Operating power supply voltage range of 2.3 V to 5.5 V
- 5 V tolerant I/Os
- Polarity inversion register
- Active LOW interrupt output
- Active LOW reset input
- Low standby current
- Noise filter on SCL/SDA inputs
- No glitch on power-up
- Internal power-on reset
- 16 I/O pins which default to 16 inputs
- 0 Hz to 400 kHz clock frequency
- 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
- Offered in three different packages: SO24, TSSOP24, and HVQFN24
Products/packages
| Type number | North American Type number | Ordering code (12NC) | Product status | Package | Packing | Marking | Chemical content | Leadfree conversion date |
|---|---|---|---|---|---|---|---|---|
| PCA9539BS | PCA9539BS-T | 9352 772 96118 | Volume production | SOT616-1
(HVQFN24) | Reel Pack, SMD, 13" | Standard Marking | PCA9539BS
| Always Pb-free |
| PCA9539D | PCA9539D | 9352 772 97112 | Volume production | SOT137-1
(SO24) | Tube | Standard Marking | PCA9539D
| week 13, 2005 |
| PCA9539D | PCA9539D-T | 9352 772 97118 | Volume production | SOT137-1
(SO24) | Reel Pack, SMD, 13" | Standard Marking | PCA9539D
| week 13, 2005 |
| PCA9539PW | PCA9539PW | 9352 772 98112 | Volume production | SOT355-1
(TSSOP24) | Tube | Standard Marking | PCA9539PW
| week 47, 2004 |
| PCA9539PW | PCA9539PW-T | 9352 772 98118 | Volume production | SOT355-1
(TSSOP24) | Reel Pack, SMD, 13" | Standard Marking | PCA9539PW
| week 47, 2004 |
| PCA9539RBS | 9352 866 04115 | Development | SOT616-1
(HVQFN24) | Reel Pack, SMD, 7" | Standard Marking | PCA9539RBS
| ||
| PCA9539RBS | 9352 866 04118 | Development | SOT616-1
(HVQFN24) | Reel Pack, SMD, 13" | Standard Marking | PCA9539RBS
| ||
| PCA9539RPW | PCA9539RPW | 9352 866 05112 | Volume production | SOT355-1
(TSSOP24) | Tube | Standard Marking | PCA9539RPW
| |
| PCA9539RPW | PCA9539RPW-T | 9352 866 05118 | Volume production | SOT355-1
(TSSOP24) | Reel Pack, SMD, 13" | Standard Marking | PCA9539RPW
|
Pricing/ordering/availability
| Type number | Ordering code(12NC) | Indicative price/unit($) | Region | Distributor | In stock | Inventory date | Buy online | Samples |
|---|---|---|---|---|---|---|---|---|
| PCA9539BS | 9352 772 96118 | 1.6000 | Order samples | |||||
| PCA9539D | 9352 772 97112 | 1.3000 | Order samples | |||||
| PCA9539D | 9352 772 97118 | 1.3000 | not available | |||||
| PCA9539PW | 9352 772 98112 | 1.7600 | not available | |||||
| PCA9539PW | 9352 772 98118 | 1.3000 | ASIA | WPI | 15,000 | 10/13/2008 | Buy online | Order samples |
| PCA9539RBS | 9352 866 04115 | not available | ||||||
| PCA9539RBS | 9352 866 04118 | not available | ||||||
| PCA9539RPW | 9352 866 05112 | not available | ||||||
| PCA9539RPW | 9352 866 05118 | Order samples |
Applications
Related applications
Digital media adapters
LCD display - discretes focus
PDA - discretes focus
Motherboard components
50-60 Hz CRT integrated DTV (TV210D)
Mid-range integrated DTV (TV810)
Intelligent washing machine
PCI analog/DVB-T stereo TV receiver
Nexperia UMA-enabled GSM/GPRS/EDGE VAS system solution (6100)
Cellular phone - MMS functionality
LCD TV - MMS functionality
Set-top box - MMS functionality
Technical documents
Application Notes
AN469_2;
I2C/SMBus general purpose I/O expanders (20-Jan-05)
Support Documents
75016543;
An industry-leading portfolio of cost-effective, power-saving solutions for major home appliances (2008-06-01)
75013239;
I 2 C Logic Selection Guide (2005-01-12)
75011212;
I2C 2002-1A Evaluation Board Kit (01-Mar-03)
UM10204_3;
I2C-bus specification and user manual (26-Jun-07)
75016535;
NXP 4/8/16-bit I (2008-08-01)
75016189;
NXP I (2008-06-01)
75015045;
World News 14.2 (2005-05-25)
Parametrics/similar products
| Type number | Package | INTERRUPT | Operating temp.(Cel) | # of Bits | Source Current per bit(mA) | I²C-bus(kHz) | Operating voltage(VDC) | Weak Pull-Up Current Source | Max Sink Current per bit(mA) | # of Addresses | Max Sink Current per package(mA) | Reset input pin |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| PCA9539BS | SOT616-1
(HVQFN24) | 0-1 | -40~85 | 16 | 10 | 400 | 2.3~5.5 | no internal pull up resistor | 25 | 4 | 200 | Yes |
| PCA9539D | SOT137-1
(SO24) | 0-1 | -40~85 | 16 | 10 | 400 | 2.3~5.5 | no internal pull up resistor | 25 | 4 | 200 | Yes |
| PCA9539PW | SOT355-1
(TSSOP24) | 0-1 | -40~85 | 16 | 10 | 400 | 2.3~5.5 | no internal pull up resistor | 25 | 4 | 200 | Yes |
Similar products
PCA9539; PCA9539R 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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