PCA9671

更新时间： 2024-11-14 04:35:03

品牌	Logo	应用领域
恩智浦 - NXP		/
页数	文件大小	规格书
34页	196K
描述
Remote 16-bit I/O expander for Fm+ I2C-bus with reset

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PCA9671 数据手册

PCA9671

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

Rev. 01 — 20 December 2006

Product data sheet

1. General description

The PCA9671 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

(Fm+) family.

The PCA9671 is a drop in upgrade for the PCF8575 providing higher 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 (64

versus 8) to allow many more devices on the bus without address conﬂicts.

The difference between the PCA9671 and the PCF8575 is that the interrupt output on the

PCF8575 is replaced by a RESET input on the PCA9671.

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

PCA9671 has a low current consumption and includes latched outputs with 25 mA high

current drive capability for directly driving LEDs. 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-mode and Standard-mode

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 reset input

I 64 programmable slave addresses using 3 address pins

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

I Low standby current

I −40 °C to +85 °C operation

I ESD protection exceeds 2000 V HBM per JESD22-A114, 200 V MM per

JESD22-A115, and 1000 V CDM per JESD22-C101

I Latch-up testing is done to JEDEC standard JESD78 which exceeds 100 mA

I Packages offered: SO24, SSOP24, QSOP24, TSSOP24, HVQFN24, DHVQFN24

12 3 4 5 6 7...34

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与PCA9671相关器件

型号	品牌	获取价格	描述	数据表
PCA9671_10	NXP	获取价格	Remote 16-bit I/O expander for Fm+ I2C-bus with reset
PCA9671BQ	NXP	获取价格	Remote 16-bit I/O expander for Fm+ I2C-bus with reset
PCA9671BS	NXP	获取价格	Remote 16-bit I/O expander for Fm+ I2C-bus with reset
PCA9671BS,118	NXP	获取价格	PCA9671 - Remote 16-bit I/O expander for Fm+ I2C-bus with reset QFN 24-Pin
PCA9671D	NXP	获取价格	Remote 16-bit I/O expander for Fm+ I2C-bus with reset
PCA9671D,112	NXP	获取价格	PCA9671 - Remote 16-bit I/O expander for Fm+ I2C-bus with reset SOP 24-Pin
PCA9671DB	NXP	获取价格	Remote 16-bit I/O expander for Fm+ I2C-bus with reset
PCA9671DB,112	NXP	获取价格	PCA9671 - Remote 16-bit I/O expander for Fm+ I2C-bus with reset SSOP2 24-Pin
PCA9671DK	NXP	获取价格	Remote 16-bit I/O expander for Fm+ I2C-bus with reset
PCA9671DK,118	NXP	获取价格	PCA9671 - Remote 16-bit I/O expander for Fm+ I2C-bus with reset SSOP2 24-Pin

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