PCA8575DB数据手册恩XP中文资料规格书

描述 Description

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.

特性 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

应用 Application

LED signs and displays
Servers
Industrial control
Medical equipment
PLCs
Cellular telephones
Gaming machines
Instrumentation and test measurement