NXP Semiconductors PCA9539
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. 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.| Part No. | PCA9539 |
|---|---|
| Datasheet | PCA9539 Download |
| Manufacturer |  NXP Semiconductors |
| Description | 16-bit I2C and SMBus low power I/O port |
| Buy | Stock & Price |
FEATURES AND BENEFITS
● 16-bit I2C-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/Os NXP Semiconductors PCA9539; PCA9539R 16-bit I2C-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 marking PCA9539BS 9539 Package Name HVQFN24 PCA9539RBS 539R HVQFN24 PCA9539D PCA9539D SO24 PCA9539PW PCA9539PW TSSOP24 PCA9539PW/Q9...
