Overview
●The PCA8575 provides general purpose remote I/O expansion for most microcontroller families via the two-line bidirectional I²C-bus (serial clock (SCL), serial data (SDA)).
●The device consists of a 16-bit quasi-bidirectional port and an I²C-bus interface. The PCA8575 has a low current consumption and includes latched outputs with high current drive capability for directly driving LEDs.
●The PCA8575 also possesses an interrupt line (INT) which can be connected to the interrupt logic of the microcontroller. By sending an interrupt signal on this line, the remote I/O can inform the microcontroller if there is incoming data on its ports without having to communicate via the I²C-bus. The internal Power-On Reset (POR) initializes the I/Os as inputs.
●MoreLess
●## Features
● 400 kHz I²C-bus interface
● 2.3 V to 5.5 V operation with 5.5 V tolerant I/Os
● 16-bit remote I/O pins that default to inputs at power-up
● Latched outputs with 25 mA sink capability for directly driving LEDs
● Total package sink capability of 400 mA
● Active LOW open-drain interrupt output
● 8 programmable slave addresses using 3 address pins
● Readable device ID (manufacturer, device type, and revision)
● Low standby current (10 uA max.)
● -40 Cel to +85 Cel operation
● 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
● Packages offered: SO24, SSOP24 (QSOP24), TSSOP24, HVQFN24, DHVQFN24
●## Target Applications
● LED signs and displays
● Servers
● Industrial control
● Medical equipment
● PLCs
● Cellular telephones
● Gaming machines
● Instrumentation and test measurement
●## Features