PCA9670 2 Remote 8-bit I/O expander for Fm+ I C-bus with reset Rev. 3 30 May 2013 Product data sheet 1. General description The PCA9670 provides general-purpose remote I/O expansion via the two-wire 2 bidirectional I C-bus (serial clock (SCL), serial data (SDA)). 2 The devices consist of eight quasi-bidirectional ports, 1 MHz 30 mA drive I C-bus interface, three hardware address inputs and a reset input operating between 2.3 V and 2 5.5V. 1MHz I C-bus Fast-mode Plus (Fm+) can support PWM dimming of LEDs, and 2 higher I C-bus drive 30 mA allows more devices to be on the bus without the need for bus buffers. The quasi-bidirectional port can be independently assigned as an input to monitor interrupt status or keypads, or as an output to activate indicator devices such as LEDs. The system master can read from the input port or write to the output port through a single register. The low current consumption of 2.5 A (typical, static) is great for mobile applications and the latched output ports have 25 mA high current sink drive capability for directly driving LEDs. The PCA9670 has three hardware address pins and allows up to 64 of these PCA9670 2 I/O expanders on the same I C-bus without the need for bus buffers, supporting up to 512 I/Os (for example, 512 LEDs). The internal Power-On Reset (POR) and active LOW hardware reset pin (RESET) initialize the I/Os as inputs with a weak internal pull-up 100 A current source. 2. Features and benefits 2 I C-bus to parallel port expander 2 2 1MHz I C-bus interface (Fast-mode Plus I C-bus) SDA with 30 mA sink capability for 4000 pF buses Operating supply voltage 2.3 V to 5.5 V with 5.5 V tolerant I/Os held to V with DD 100 A current source 8-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 200 mA Active LOW reset input Sixty-four programmable slave addresses using three address pins Readable device ID (manufacturer, device type, and revision) Software reset Low standby current (2.5 A typical) 40 C to +85 C operationPCA9670 NXP Semiconductors 2 Remote 8-bit I/O expander for Fm+ I C-bus with reset 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 Packages offered: SO16, TSSOP16 and HVQFN16 3. Applications LED signs and displays Servers Keypads Industrial control Medical equipment PLCs Cellular telephones Mobile devices Gaming machines Instrumentation and test measurement 4. Ordering information Table 1. Ordering information Type number Topside Package marking Name Description Version PCA9670BS 670 HVQFN16 plastic thermal enhanced very thin quad flat package no leads SOT758-1 16 terminals body 3 3 0.85 mm PCA9670D PCA9670D SO16 plastic small outline package 16 leads body width 7.5 mm SOT162-1 PCA9670PW PCA9670 TSSOP16 plastic thin shrink small outline package 16 leads SOT403-1 body width 4.4 mm 4.1 Ordering options Table 2. Ordering options Type number Orderable Package Packing method Minimum Temperature range part number order quantity PCA9670BS PCA9670BS,118 HVQFN16 Reel 13 Q1/T1 6000 T = 40 C to +85 C amb *standard mark SMD PCA9670D PCA9670D,512 SO16 Standard marking * tube dry pack 1920 T = 40 C to +85 C amb PCA9670D,518 SO16 Reel 13 Q1/T1 1000 T = 40 C to +85 C amb *standard mark SMD dry pack PCA9670PW PCA9670PW,112 TSSOP16 Standard marking * 2400 T = 40 C to +85 C amb ICs tube - DSC bulk pack PCA9670PW,118 TSSOP16 Reel 13 Q1/T1 2500 T = 40 C to +85 C amb *standard mark SMD PCA9670 All information provided in this document is subject to legal disclaimers. NXP B.V. 2013. All rights reserved. Product data sheet Rev. 3 30 May 2013 2 of 35