參數(shù)資料
型號(hào)： PCA9673DK
廠商： NXP SEMICONDUCTORS
元件分類： 微控制器/微處理器
英文描述： Remote 16-bit I/O expander for Fm+ I2C-bus with interrupt and reset
中文描述： 18 I/O, PIA-GENERAL PURPOSE, PDSO24
封裝： 3.90 MM, 0.635 MM PITCH, PLASTIC, MO-137, SOT556-1, SSOP-24
文件頁數(shù)： 17/33頁
文件大?。?/td> 185K
代理商： PCA9673DK
PCA9673_1
NXP B.V. 2007. All rights reserved.
Product data sheet
Rev. 01 — 1 February 2007
17 of 33
NXP Semiconductors
PCA9673
Remote 16-bit I/O expander for Fm+ I
2
C-bus with interrupt and reset
10. Application design-in information
10.1 Bidirectional I/O expander applications
In the 8-bit I/O expander application shown in
Figure 24
, P00 and P01 are inputs, and P02
to P07 are outputs. When used in this configuration, during a write, the input (P00 and
P01) must be written as HIGH so the external devices fully control the input ports. The
desired HIGH or LOW logic levels may be written to the I/Os used as outputs (P02 to
P07). During a read, the logic levels of the external devices driving the input ports (P00
and P01) and the previous written logic level to the output ports (P02 to P07) will be read.
The GPIO also has an interrupt line (INT) that can be connected to the interrupt logic of
the microprocessor. By sending an interrupt signal on this line, the remote I/O informs the
microprocessor that there is incoming data or a change of data on its ports without having
to communicate via the I
2
C-bus.
10.2 High current-drive load applications
The GPIO has a maximum sinking current of 25 mA per bit. In applications requiring
additional drive, two port pins in the same octal may be connected together to sink up to
50 mA current. Both bits must then always be turned on or off together. Up to 8 pins (one
octal) can be connected together to drive 200 mA.
Fig 24. Bidirectional I/O expander application
002aac310
V
DD
temperature sensor
battery status
control for latch
control for switch
control for audio
control for camera
control for MP3
P00
P01
P02
P03
P04
P05
P06
P07
V
DD
SDA
SCL
INT
RESET
AD0
AD1
CORE
PROCESSOR
V
DD
Fig 25. High current-drive load application
002aac311
V
DD
P00
P01
P02
P03
P04
P05
P06
P07
V
DD
SDA
SCL
INT
RESET
CORE
PROCESSOR
V
DD
LOAD
AD0
AD1
相關(guān)PDF資料
PDF描述
PCA9674AN Remote 8-bit I/O expander for Fm+ I2C-bus with interrupt
PCA9674ATS Remote 8-bit I/O expander for Fm+ I2C-bus with interrupt
PCA9674N Remote 8-bit I/O expander for Fm+ I2C-bus with interrupt
PCA9674TS Remote 8-bit I/O expander for Fm+ I2C-bus with interrupt
PCA9674 Remote 8-bit I/O expander for Fm+ I2C-bus with interrupt
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
PCA9673DK,118 功能描述:接口-I/O擴(kuò)展器 16BIT I2C FM+ QBGPIO RoHS:否 制造商:NXP Semiconductors 邏輯系列: 輸入/輸出端數(shù)量: 最大工作頻率:100 kHz 工作電源電壓:1.65 V to 5.5 V 工作溫度范圍:- 40 C to + 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:HVQFN-16 封裝:Reel
PCA9673DK-T 功能描述:接口-I/O擴(kuò)展器 16BIT I2C FM+ QBGPIO INT-RS PU RoHS:否 制造商:NXP Semiconductors 邏輯系列: 輸入/輸出端數(shù)量: 最大工作頻率:100 kHz 工作電源電壓:1.65 V to 5.5 V 工作溫度范圍:- 40 C to + 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:HVQFN-16 封裝:Reel
PCA9673D-T 功能描述:接口-I/O擴(kuò)展器 16BIT I2C FM+ QBGPIO INT-RS PU RoHS:否 制造商:NXP Semiconductors 邏輯系列: 輸入/輸出端數(shù)量: 最大工作頻率:100 kHz 工作電源電壓:1.65 V to 5.5 V 工作溫度范圍:- 40 C to + 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:HVQFN-16 封裝:Reel
PCA9673PW 功能描述:接口-I/O擴(kuò)展器 16BIT I2C FM+ QBGPIO INT-RS PU RoHS:否 制造商:NXP Semiconductors 邏輯系列: 輸入/輸出端數(shù)量: 最大工作頻率:100 kHz 工作電源電壓:1.65 V to 5.5 V 工作溫度范圍:- 40 C to + 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:HVQFN-16 封裝:Reel
PCA9673PW,112 功能描述:接口-I/O擴(kuò)展器 16BIT I2C FM+ QBGPIO RoHS:否 制造商:NXP Semiconductors 邏輯系列: 輸入/輸出端數(shù)量: 最大工作頻率:100 kHz 工作電源電壓:1.65 V to 5.5 V 工作溫度范圍:- 40 C to + 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:HVQFN-16 封裝:Reel
發(fā)布緊急采購，3分鐘左右您將得到回復(fù)。

采購需求

(若只采購一條型號(hào)，填寫一行即可)

發(fā)布成功！您可以繼續(xù)發(fā)布采購。也可以進(jìn)入我的后臺(tái)，查看報(bào)價(jià)

發(fā)布成功！您可以繼續(xù)發(fā)布采購。也可以進(jìn)入我的后臺(tái)，查看報(bào)價(jià)

*型號(hào) *數(shù)量 廠商 批號(hào) 封裝
添加更多采購

我的聯(lián)系方式

*
*
*