PCA8575D,118 NXP

PCA8575 2 Remote 16-bit I/O expander for I C-bus with interrupt Rev. 02 21 March 2007 Product data sheet 1. General description The PCA8575 provides general purpose remote I/O expansion for most microcontroller 2 families via the two-line bidirectional I C-bus (serial clock (SCL), serial data (SDA)). 2 The device consists of a 16-bit quasi-bidirectional port and an I C-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 2 communicate via the I C-bus. The internal Power-On Reset (POR) initializes the I/Os as inputs. 2. Features 2 n 400 kHz I C-bus interface n 2.3 V to 5.5 V operation with 5.5 V tolerant I/Os n 16-bit remote I/O pins that default to inputs at power-up n Latched outputs with 25 mA sink capability for directly driving LEDs n Total package sink capability of 400 mA n Active LOW open-drain interrupt output n 8 programmable slave addresses using 3 address pins n Readable device ID (manufacturer, device type, and revision) n Low standby current (10 A max.) n - 40 C to +85 C operation n ESD protection exceeds 2000 V HBM per JESD22-A114, 200 V MM per JESD22-A115, and 1000 V CDM per JESD22-C101 n Latch-up testing is done to JEDEC standard JESD78 which exceeds 100 mA n Packages offered: SO24, SSOP24 (QSOP24), TSSOP24, HVQFN24, DHVQFN24 3. Applications n LED signs and displays n Servers n Industrial control n Medical equipment n PLCs n Cellular telephonesPCA8575 NXP Semiconductors 2 Remote 16-bit I/O expander for I C-bus with interrupt n Gaming machines n Instrumentation and test measurement 4. Ordering information Table 1. Ordering information Type number Topside Package mark Name Description Version PCA8575D PCA8575D SO24 plastic small outline package 24 leads body width 7.5 mm SOT137-1 PCA8575DB PCA8575DB SSOP24 plastic shrink small outline package 24 leads body width 5.3 mm SOT340-1 1 PCA8575DK PCA8575 SSOP24 plastic shrink small outline package 24 leads SOT556-1 body width 3.9 mm lead pitch 0.635 mm PCA8575PW PCA8575PW TSSOP24 plastic thin shrink small outline package 24 leads SOT355-1 body width 4.4 mm PCA8575BQ 8575 DHVQFN24 plastic dual in-line compatible thermal enhanced very thin quad SOT815-1 at package no leads 24 terminals body 3.5 5.5 0.85 mm PCA8575BS 8575 HVQFN24 plastic thermal enhanced very thin quad at package no leads SOT616-1 24 terminals body 4 4 0.85 mm 1 Also known as QSOP24. 5. Block diagram PCA8575 INTERRUPT INT LP FILTER LOGIC AD0 AD1 AD2 P00 to P07 SCL 2 SHIFT I/O INPUT I C-BUS 16 BITS REGISTER PORT FILTER CONTROL SDA P10 to P17 write pulse read pulse POWER-ON V DD RESET V SS 002aac669 Fig 1. Block diagram of PCA8575 PCA8575 2 NXP B.V. 2007. All rights reserved. Product data sheet Rev. 02 21 March 2007 2 of 30