參數(shù)資料
型號(hào)： PCA9672PW,118
廠商： NXP Semiconductors
文件頁(yè)數(shù)： 2/36頁(yè)
文件大?。?/td> 0K
描述： IC I/O EXPANDER I2C 8B 16TSSOP
標(biāo)準(zhǔn)包裝： 2,500
接口： I²C
輸入/輸出數(shù)： 8
中斷輸出： 是
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： 帶卷 (TR)
包括： POR
其它名稱： 935282747118
PCA9672PW-T
PCA9672PW-T-ND
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
10 of 36
NXP Semiconductors
PCA9672
Remote 8-bit I/O expander for Fm+ I2C-bus with interrupt and reset
There is only one register to control four possibilities of the port pin: Input HIGH, input
LOW, output HIGH, or output LOW.
Input HIGH: The master needs to write 1 to the register to set the port as an input mode
if the device is not in the default power-on condition. The master reads the register to
check the input status. If the external source pulls the port pin up to VDD or drives
logic 1, then the master will read the value of 1.
Input LOW: The master needs to write 1 to the register to set the port to input mode if
the device is not in the default power-on condition. The master reads the register to
check the input status. If the external source pulls the port pin down to VSS or drives
logic 0, which sinks the weak 100
A current source, then the master will read the value
of 0.
Output HIGH: The master writes 1 to the register. There is an additional ‘a(chǎn)ccelerator’ or
strong pull-up current when the master sets the port HIGH. The additional strong pull-up
is only active during the HIGH time of the acknowledge clock cycle. This accelerator
current helps the port’s 100
A current source make a faster rising edge into a heavily
loaded output, but only at the start of the acknowledge clock cycle to avoid bus
contention if an external signal is pulling the port LOW to VSS/driving the port with
logic 0 at the same time. After the half clock cycle there is only the 100
A current
source to hold the port HIGH.
Output LOW: The master writes 0 to the register. There is a strong current sink
transistor that holds the port pin LOW. A large current may flow into the port, which
could potentially damage the part if the master writes a 0 to the register and an external
source is pulling the port HIGH at the same time.
Fig 12. Simple quasi-bidirectional I/O
002aah683
VDD
weak 100 A
current source
(inactive when
output LOW)
output HIGH
VSS
output LOW
accelerator
pull-up
P port
P7 - P0
pull-down with
resistor to VSS or
external drive LOW
input LOW
pull-up with
resistor to VDD or
external drive HIGH
input HIGH
相關(guān)PDF資料
PDF描述
PCA9673DB,112 IC I/O EXPANDER I2C 16B 24SSOP
PCA9674PW/S911,118 IC I/O EXPANDER I2C 8B 16TSSOP
PCA9675PW/S911,118 IC I/O EXPANDER I2C 16B 24TSSOP
PCA9698DGG/S911,51 IC I/O EXPANDER I2C 40B 56TSSOP
PCF51AC256BCPUE MCU 8BIT 256K FLASH 64-LQFP
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
發(fā)布緊急采購(gòu)，3分鐘左右您將得到回復(fù)。

采購(gòu)需求

(若只采購(gòu)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(gòu)。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(gòu)。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(gòu)

我的聯(lián)系方式

*
*
*