參數(shù)資料
型號(hào): PCA9675DB
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
中文描述: 18 I/O, PIA-GENERAL PURPOSE, PDSO24
封裝: 5.30 MM, PLASTIC, MO-150, SOT340-1, SSOP-24
文件頁數(shù): 13/34頁
文件大小: 185K
代理商: PCA9675DB
PCA9675_1
NXP B.V. 2007. All rights reserved.
Product data sheet
Rev. 01 — 1 February 2007
13 of 34
NXP Semiconductors
PCA9675
Remote 16-bit I/O expander for Fm+ I
2
C-bus with interrupt
8.3 Reading from a port (Input mode)
All ports programmed as input should be set to logic 1. To read, the master
(microcontroller) first addresses the slave device after it receives the interrupt. By setting
the last bit of the byte containing the slave address to logic 1 the Read mode is entered.
The data bytes that follow on the SDA are the values on the ports.
If the data on the input port changes faster than the master can read, this data may be
lost.
Fig 16. Write mode (output)
A5 A4 A3 A2 A1 A0
0
A
S A6
slave address
START condition
R/W
acknowledge
from slave
002aab632
P
06
1
P
07
data to port 0
A
acknowledge
from slave
1
2
3
4
5
6
7
8
SCL
9
SDA
A
acknowledge
from slave
write to port
data output from port
t
v(Q)
P05
data to port 1
data A0 and B0 valid
P16 output voltage
I
trt(pu)
I
OH
t
d(rst)
P16 pull-up output current
INT
P
04
P
03
P
02
P
01
P
00
P
17
P
14
P
13
P
12
P
11
P
10
1
P16
P
15
t
v(Q)
data A0 and B0 valid
P05 output voltage
I
trt(pu)
I
OH
P05 pull-up output current
相關(guān)PDF資料
PDF描述
PCA9675DK Remote 16-bit I/O expander for Fm+ I2C-bus with interrupt
PCA9698 40-bit Fm+ I2C-bus advanced I/O port with RESET, OE and INT
PCADADIO-CS PC(ISA)BUS I/O CARD
PCB80C552-4 8-BIT MICROCONTROLLER
PCB80C39 SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
PCA9675DB,112 功能描述:接口-I/O擴(kuò)展器 16-BIT I2C FM+ QB 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
PCA9675DB,118 功能描述:接口-I/O擴(kuò)展器 16-BIT I2C FM+ QB 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
PCA9675DB-T 功能描述:接口-I/O擴(kuò)展器 16-BIT I2C FM+ QB GPIO RST 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
PCA9675DK,118 功能描述:接口-I/O擴(kuò)展器 16-BIT I2C FM+ QB 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
PCA9675DK-T 功能描述:接口-I/O擴(kuò)展器 16-BIT I2C FM+ QB GPIO RST 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