參數(shù)資料
型號(hào): PCA9672PW,112
廠商: NXP Semiconductors
文件頁(yè)數(shù): 3/36頁(yè)
文件大小: 0K
描述: IC I/O EXPANDER I2C 8B 16TSSOP
產(chǎn)品培訓(xùn)模塊: LED Controllers
I²C Bus Fundamentals
特色產(chǎn)品: NXP - I2C Interface
標(biāo)準(zhǔn)包裝: 96
接口: I²C
輸入/輸出數(shù): 8
中斷輸出:
頻率 - 時(shí)鐘: 1MHz
電源電壓: 2.3 V ~ 5.5 V
工作溫度: -40°C ~ 85°C
安裝類型: 表面貼裝
封裝/外殼: 16-TSSOP(0.173",4.40mm 寬)
供應(yīng)商設(shè)備封裝: 16-TSSOP
包裝: 管件
包括: POR
產(chǎn)品目錄頁(yè)面: 826 (CN2011-ZH PDF)
其它名稱: 568-4196-5
935282747112
PCA9672PW
PCA9672
All information provided in this document is subject to legal disclaimers.
NXP B.V. 2013. All rights reserved.
Product data sheet
Rev. 3 — 27 May 2013
11 of 36
NXP Semiconductors
PCA9672
Remote 8-bit I/O expander for Fm+ I2C-bus with interrupt and reset
8.2 Writing to the port (Output mode)
The master (microcontroller) sends the START condition and slave address setting the
last bit of the address byte to logic 0 for the write mode. The PCA9672 acknowledges and
the master then sends the data byte for P7 to P0 to the port register. As the clock line
goes HIGH, the 8-bit data is presented on the port lines after it has been acknowledged by
the PCA9672. If a LOW is written, the strong pull-down turns on and stays on. If a HIGH is
written, the strong pull-up turns on for 12 of the clock cycle, then the line is held HIGH by
the weak current source. The master can then send a STOP or ReSTART condition or
continue sending data. The number of data bytes that can be sent successively is not
limited and the previous data is overwritten every time a data byte has been sent and
acknowledged.
Ensure a logic 1 is written for any port that is being used as an input to ensure the strong
external pull-down is turned off.
Simple code for Write cycle:
<S> <slave address + W> <ACK> <DATA1> <ACK> <DATA2> <ACK> <DATA1> ...
<DATAn> <ACK> <P>
Fig 13. Write mode (output)
A5 A4 A3 A2 A1 A0
0
A
SA6
slave address
START condition
R/W
acknowledge
from slave
002aah623
P6
1
P7
data 1
A
acknowledge
from slave
12345678
SCL
9
SDA
A
acknowledge
from slave
write to port
data output from port
tv(Q)
P5
data 2
DATA 2 VALID
P4 P3 P2 P1 P0
P7
P4 P3 P2 P1 P0
P6
P5
0
tv(Q)
DATA 1 VALID
P5 output voltage
Itrt(pu)
IOH
P5 pull-up output current
trst(INT)
INT
相關(guān)PDF資料
PDF描述
PCA9574PW,112 IC I/O EXPANDER I2C 8B 16TSSOP
PCA9574PW,118 IC I/O EXPANDER I2C 8B 16TSSOP
2-964577-2 MULTIFIT RAHMEN 2P
1-964577-5 MULTIFIT RAHMEN 5P
1-964576-3 PCB RAHMEN 13P
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
PCA9673BQ,118 功能描述:接口-I/O擴(kuò)展器 REMOTE 16BIT GPIO 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
PCA9673BQ-T 功能描述:接口-I/O擴(kuò)展器 REMOTE 16BIT GPIO FM+I2C-RESET 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
PCA9673BS,118 功能描述:接口-I/O擴(kuò)展器 REMOTE 16BIT GPIO 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
PCA9673BS-T 功能描述:接口-I/O擴(kuò)展器 REMOTE 16BIT GPIO FM+I2C-RESET 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 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