參數(shù)資料
型號: PCA9671DB,112
廠商: NXP Semiconductors
文件頁數(shù): 5/33頁
文件大?。?/td> 0K
描述: IC I/O EXPANDER I2C 16B 24SSOP
產(chǎn)品培訓模塊: LED Controllers
特色產(chǎn)品: NXP - I2C Interface
標準包裝: 59
接口: I²C
輸入/輸出數(shù): 16
中斷輸出:
頻率 - 時鐘: 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: 24-SSOP(0.209",5.30mm 寬)
供應商設備封裝: 24-SSOP
包裝: 管件
包括: POR
其它名稱: 568-4190-5
935283552112
PCA9671DB
PCA9671
All information provided in this document is subject to legal disclaimers.
NXP B.V. 2011. All rights reserved.
Product data sheet
Rev. 3 — 29 September 2011
13 of 33
NXP Semiconductors
PCA9671
Remote 16-bit I/O expander for Fm+ I2C-bus with reset
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 14. Write mode (output)
A5 A4 A3 A2 A1 A0
0
A
SA6
slave address
START condition
R/W
acknowledge
from slave
002aac250
P
06
1
P
07
data to port 0
A
acknowledge
from slave
12345678
SCL
9
SDA
A
acknowledge
from slave
write to port
data output from port
tv(Q)
P05
data to port 1
data A0 and B0 valid
P16 output voltage
Itrt(pu)
IOH
P16 pull-up output current
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
tv(Q)
DATA A0 AND B0 VALID
P05 output voltage
Itrt(pu)
IOH
P05 pull-up output current
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PCA9671DB-T 功能描述:接口-I/O擴展器 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 安裝風格:SMD/SMT 封裝 / 箱體:HVQFN-16 封裝:Reel
PCA9671DK,118 功能描述:接口-I/O擴展器 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 安裝風格:SMD/SMT 封裝 / 箱體:HVQFN-16 封裝:Reel
PCA9671DK-T 功能描述:接口-I/O擴展器 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 安裝風格:SMD/SMT 封裝 / 箱體:HVQFN-16 封裝:Reel
PCA9671D-T 功能描述:接口-I/O擴展器 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 安裝風格:SMD/SMT 封裝 / 箱體:HVQFN-16 封裝:Reel
PCA9671PW 功能描述:接口-I/O擴展器 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 安裝風格:SMD/SMT 封裝 / 箱體:HVQFN-16 封裝:Reel