PCA9673D datasheet(1/33 Pages) PHILIPS

部件名	PCA9673D

功能描述	Remote 16-bit I/O expander for Fm I2C-bus with interrupt and reset

PDF	33 Pages

Scroll/Zoom	100%

制造商	PHILIPS [NXP Semiconductors]

网页	http://www.nxp.com

标志

1 / 33 page

1.

General description

The PCA9673 provides general purpose remote I/O expansion for most microcontroller

families via the two-line bidirectional bus (I2C-bus) and is a part of the Fast-mode Plus

family.

The PCA9673 is a drop in upgrade for the PCF8575 providing higher Fast-mode Plus

(Fm+) I2C-bus speeds (1 MHz versus 400 kHz) so that the output can support PWM

dimming of LEDs, higher I2C-bus drive (30 mA versus 3 mA) so that many more devices

can be on the bus without the need for bus buffers, higher total package sink capacity

(400 mA versus 100 mA) that supports having all 25 mA LEDs on at the same time and

more device addresses (16 versus 8) are available to allow many more devices on the bus

without address conﬂicts.

The difference between the PCA9673 and the PCF8575 is that the A2 address pin is

replaced by a RESET input on the PCA9673.

The device consists of a 16-bit quasi-bidirectional port and an I2C-bus interface. The

PCA9673 has a low current consumption and includes latched outputs with 25 mA high

current drive capability for directly driving LEDs.

It 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), hardware reset pin (RESET) or software reset

sequence initializes the I/Os as inputs.

2.

Features

I 1 MHz I2C-bus interface

I Compliant with the I2C-bus Fast and Standard modes

I SDA with 30 mA sink capability for 4000 pF buses

I 2.3 V to 5.5 V operation with 5.5 V tolerant I/Os

I 16-bit remote I/O pins that default to inputs at power-up

I Latched outputs with 25 mA sink capability for directly driving LEDs

I Total package sink capability of 400 mA

I Active LOW open-drain interrupt output

I 16 programmable slave addresses using 2 address pins

I Readable device ID (manufacturer, device type, and revision)

PCA9673

Remote 16-bit I/O expander for Fm+ I2C-bus with interrupt and

reset

Rev. 01 — 1 February 2007

Product data sheet

类似零件编号 - PCA9673D

制造商	部件名	数据表	功能描述
NXP Semiconductors	PCA9673D	208Kb / 33P	Remote 16-bit I/O expander for Fm I2C-bus with interrupt and reset Rev. 01-1 February 2007
	PCA9673DB	208Kb / 33P	Remote 16-bit I/O expander for Fm I2C-bus with interrupt and reset Rev. 01-1 February 2007
	PCA9673DK	208Kb / 33P	Remote 16-bit I/O expander for Fm I2C-bus with interrupt and reset Rev. 01-1 February 2007

制造商	部件名	数据表	功能描述
NXP Semiconductors	PCA8575	179Kb / 30P	Remote 16-bit I/O expander for I2C-bus with interrupt Rev. 01-30 November 2006
	PCA9671	195Kb / 34P	Remote 16-bit I/O expander for Fm I2C-bus with reset Rev. 01-20 December 2006
	PCA9675	197Kb / 34P	Remote 16-bit I/O expander for Fm I2C-bus with interrupt Rev. 01-1 February 2007
	PCA8575	190Kb / 30P	Remote 16-bit I/O expander for I2C-bus with interrupt Rev. 02-21 March 2007
	PCA9671	204Kb / 34P	Remote 16-bit I/O expander for Fm I2C-bus with reset Rev. 01-20 December 2006
	PCA9672	172Kb / 27P	Remote 8-bit I/O expander for Fm I2C-bus with interrupt and reset Rev. 02-6 July 2007
	PCA9673	208Kb / 33P	Remote 16-bit I/O expander for Fm I2C-bus with interrupt and reset Rev. 01-1 February 2007
	PCA9675	207Kb / 34P	Remote 16-bit I/O expander for Fm I2C-bus with interrupt Rev. 01-1 February 2007
	PCA9671	799Kb / 35P	Remote 16-bit I/O expander for Fm I2C-bus with reset Rev. 2-29 July 2010
ON Semiconductor	PCA9655EDWR2G	215Kb / 20P	Remote 16-bit I/O Expander for I2C Bus with Interrupt May, 2012 ??Rev. 1