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PCA9673DB

更新时间： 2024-11-14 04:35:03
品牌 Logo 应用领域
恩智浦 - NXP 并行IO端口微控制器和处理器外围集成电路光电二极管
页数 文件大小 规格书
33页 199K
描述
Remote 16-bit I/O expander for Fm+ I2C-bus with interrupt and reset

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PCA9673DB 技术参数

Source Url Status Check Date：2013-06-14 00:00:00是否Rohs认证：符合
生命周期：Obsolete零件包装代码：SSOP
包装说明：SSOP, SSOP24,.3针数：24
Reach Compliance Code：unknownECCN代码：EAR99
HTS代码：8542.39.00.01风险等级：5.75
Is Samacsys：NJESD-30 代码：R-PDSO-G24
JESD-609代码：e4长度：8.2 mm
位数：16I/O 线路数量：18
端口数量：1端子数量：24
最高工作温度：85 °C最低工作温度：-40 °C
封装主体材料：PLASTIC/EPOXY封装代码：SSOP
封装等效代码：SSOP24,.3封装形状：RECTANGULAR
封装形式：SMALL OUTLINE, SHRINK PITCH电源：2.5/5 V
认证状态：Not Qualified座面最大高度：2 mm
子类别：Parallel IO Port最大供电电压：5.5 V
最小供电电压：2.3 V表面贴装：YES
技术：CMOS温度等级：INDUSTRIAL
端子面层：NICKEL PALLADIUM GOLD端子形式：GULL WING
端子节距：0.65 mm端子位置：DUAL
宽度：5.3 mmuPs/uCs/外围集成电路类型：PARALLEL IO PORT, GENERAL PURPOSE
Base Number Matches：1

PCA9673DB 数据手册

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PCA9673  
Remote 16-bit I/O expander for Fm+ I2C-bus with interrupt and  
reset  
Rev. 01 — 1 February 2007  
Product data sheet  
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)  
1234567...33

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