Remote " />
參數(shù)資料
型號(hào)： PCA8575DB,118
廠商： NXP Semiconductors
文件頁(yè)數(shù)： 3/30頁(yè)
文件大小： 0K
描述： IC I/O EXPANDER I2C 16B 24SSOP
特色產(chǎn)品： NXP - I2C Interface
標(biāo)準(zhǔn)包裝： 1
接口： I²C
輸入/輸出數(shù)： 16
中斷輸出： 是
頻率 - 時(shí)鐘： 400kHz
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(yīng)商設(shè)備封裝： 24-SSOP
包裝： 標(biāo)準(zhǔn)包裝
包括： POR
其它名稱： 568-8702-6
PCA8575_2
NXP B.V. 2007. All rights reserved.
Product data sheet
Rev. 02 — 21 March 2007
11 of 30
NXP Semiconductors
PCA8575
Remote 16-bit I/O expander for I2C-bus with interrupt
8.4 Power-on reset
When power is applied to VDD, an internal Power-On Reset (POR) holds the PCA8575 in
a reset condition until VDD has reached VPOR. At that point, the reset condition is released
and the PCA8575 registers and I2C-bus/SMBus state machine will initialize to their default
states. Thereafter VDD must be lowered below 0.2 V to reset the device.
8.5 Interrupt output (INT)
The PCA8575 provides an open-drain interrupt (INT) which can be fed to a corresponding
input of the microcontroller (see Figure 12, Figure 13, and Figure 14). This gives these
chips a kind of master function which can initiate an action elsewhere in the system.
An interrupt is generated by any rising or falling edge of the port inputs. After time tv(D) the
signal INT is valid.
The interrupt disappears when data on the port is changed to the original setting or data is
read from or written to the device which has generated the interrupt.
In the Write mode, the interrupt may become deactivated (HIGH) on the rising edge of the
write to port pulse. On the falling edge of the write to port pulse the interrupt is denitely
deactivated (HIGH).
The interrupt is reset in the Read mode on the rising edge of the read from port pulse.
During the resetting of the interrupt itself, any changes on the I/Os may not generate an
interrupt. After the interrupt is reset any change in I/Os will be detected and transmitted as
an INT.
Fig 14. Application of multiple PCA8575s with interrupt
002aac676
VDD
MICROCOMPUTER
INT
PCA8575
INT
PCA8575
INT
device 1
device 2
PCA8575
INT
device 8
相關(guān)PDF資料
PDF描述
ATTINY88-15MZ IC MCU AVR 8B 8KB FLASH 32QFN
PCA9535CD,118 IC I/O EXPANDER I2C 16B 24SOIC
PCA9674APW,118 IC I/O EXPANDER I2C 8B 16TSSOP
PCA9672PW,112 IC I/O EXPANDER I2C 8B 16TSSOP
PCA9574PW,112 IC I/O EXPANDER I2C 8B 16TSSOP
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
PCA8575DB-T 功能描述:接口-I/O擴(kuò)展器 16-BIT I2C FM QB GPIO INT 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
PCA8575DK 制造商:PHILIPS 制造商全稱:NXP Semiconductors 功能描述:Remote 16-bit I/O expander for I2C-bus with interrupt
PCA8575DK,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
PCA8575DK-T 功能描述:接口-I/O擴(kuò)展器 16-BIT I2C FM QB GPIO INT 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
PCA8575PW 功能描述:接口-I/O擴(kuò)展器 16-BIT I2C FM QB GPIO INT 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

*
*
*