PCA9539PW,112

PCA9539 PCA9539R 2 16-bit I C-bus and SMBus low power I/O port with interrupt and reset Rev. 9 8 November 2017 Product data sheet 1. 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 2 I C-bus/SMBus applications and was developed to enhance the NXP Semiconductors 2 family of I C-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 2 configuration to occur without de-powering the device, holding the registers and I C-bus state machine in their default state until the RESET input is once again HIGH. This input requires a pull-up to V . In the PCA9539R however, only the device state machine is DD initialized by the RESET pin and the internal general-purpose registers remain 2 unchanged. Using the PCA9539R RESET pin will only reset the I C-bus interface should 2 it be stuck LOW to regain access to the I C-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 2 cause system errors while the I C-bus is being restored. 2 Two hardware pins (A0, A1) vary the fixed I C-bus address and allow up to four devices to 2 share the same I C-bus/SMBus. 2. Features and benefits 2 16-bit I C-bus GPIO with interrupt and reset Operating power supply voltage range of 2.3 V to 5.5 V (3.0 V to 5.5 V for PCA9539PW/Q900 and PCA9539RPW/Q900) 5 V tolerant I/OsPCA9539 PCA9539R NXP Semiconductors 2 16-bit I C-bus and SMBus low power I/O port with interrupt and reset 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 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 3. Ordering information Table 1. Ordering information Type number Topside Package marking Name Description Version PCA9539BS 9539 HVQFN24 plastic thermal enhanced very thin quad flat package SOT616-1 no leads 24 terminals body 4 4 0.85 mm PCA9539RBS 539R HVQFN24 plastic thermal enhanced very thin quad flat package SOT616-1 no leads 24 terminals body 4 4 0.85 mm PCA9539D PCA9539D SO24 plastic small outline package 24 leads SOT137-1 body width 7.5 mm PCA9539PW PCA9539PW TSSOP24 plastic thin shrink small outline package 24 leads SOT355-1 body width 4.4 mm 1 PCA9539PW TSSOP24 plastic thin shrink small outline package 24 leads SOT355-1 PCA9539PW/Q900 body width 4.4 mm PCA9539RPW PA9539RPW TSSOP24 plastic thin shrink small outline package 24 leads SOT355-1 body width 4.4 mm 1 PCA9539RPW/Q900 PA9539RPW TSSOP24 plastic thin shrink small outline package 24 leads SOT355-1 body width 4.4 mm 1 PCA9539PW/Q900 and PCA9539RPW/Q900 are AEC-Q100 compliant. Contact I2C.support nxp.com for PPAP. 3.1 Ordering options Table 2. Ordering options Type number Orderable Package Packing method Minimum Temperature part number order quantity PCA9539BS PCA9539BS,115 HVQFN24 Reel 7 Q1/T1 1500 T = 40 C to +85 C amb 1 *standard mark SMD 6000 T = 40 C to +85 C PCA9539BS,118 HVQFN24 Reel 13 Q1/T1 amb 1 *standard mark SMD PCA9539BSHP HVQFN24 Reel 13 Q2/T3 6000 T = 40 C to +85 C amb 2 *standard mark SMD PCA9539 PCA9539R All information provided in this document is subject to legal disclaimers. NXP Semiconductors N.V. 2017. All rights reserved. Product data sheet Rev. 9 8 November 2017 2 of 39