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PCA9574 Datasheet(PDF) 2 Page - NXP Semiconductors |
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PCA9574 Datasheet(HTML) 2 Page - NXP Semiconductors |
2 / 32 page PCA9574_2 © NXP B.V. 2009. All rights reserved. Product data sheet Rev. 02 — 27 July 2009 2 of 32 NXP Semiconductors PCA9574 8-bit I2C-bus and SMBus, level translating, low voltage GPIO The PCA9574 is available in TSSOP16, HVQFN16 and HXQFN16U packages and is specified over the −40 °C to +85 °C industrial temperature range. 2. Features I 400 kHz I2C-bus serial interface I Compliant with I2C-bus Standard-mode (100 kHz) I Separate supply rails for core logic and I/O bank provides voltage level shifting I 1.1 V to 3.6 V operation with level shifting feature I Very low standby current: < 1 µA I 8 configurable I/O pins that default to inputs at power-up I Outputs: N Totem pole: 1 mA source and 3 mA sink N Independently programmable 100 kΩ pull-up or pull-down for each I/O pin N Open-drain active LOW interrupt (INT) output pin allows monitoring of logic level change of pins programmed as inputs I Inputs: N Programmable bus hold provides valid logic level when inputs are not actively driven N Programmable Interrupt Mask Control for input pins that do not require an interrupt when their states change or to prevent spurious interrupts default to mask at power-up N Polarity inversion register allows inversion of the polarity of the I/O pins when read I Active LOW reset (RESET) input pin resets device to power-up default state I GPIO All Call address allows programming of more than one device at the same time with the same parameters I 2 programmable slave addresses using 1 address pin I −40 °C to +85 °C operation I ESD protection exceeds 7000 V HBM per JESD22-A114, 500 V MM per JESD22-A115, and 1000 V CDM per JESD22-C101 I Latch-up testing is done to JEDEC Standard JESD78 which exceeds 100 mA I Packages offered: TSSOP16, HVQFN16 and HXQFN16U 3. Applications I Cell phones I Media players I Multi voltage environments I Battery operated mobile gadgets I Motherboards I Servers I RAID systems I Industrial control I Medical equipment I PLCs |
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