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參數(shù)資料
| 型號(hào)： | PCA8575PW,112 |
| 廠商： | NXP Semiconductors |
| 文件頁(yè)數(shù)： | 27/30頁(yè) |
| 文件大?。?/td> | 0K |
| 描述： | IC I/O EXPANDER I2C 16B 24TSSOP |
| 產(chǎn)品培訓(xùn)模塊： | I²C Bus Fundamentals |
| 特色產(chǎn)品： | NXP - I2C Interface |
| 標(biāo)準(zhǔn)包裝： | 63 |
| 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(lèi)型： | 表面貼裝 |
| 封裝/外殼： | 24-TSSOP（0.173"，4.40mm 寬） |
| 供應(yīng)商設(shè)備封裝： | 24-TSSOP |
| 包裝： | 管件 |
| 包括： | POR |
| 產(chǎn)品目錄頁(yè)面： | 824 (CN2011-ZH PDF) |
| 其它名稱(chēng)： | 568-4230-5 935283505112 PCA8575PW PCA8575PW-ND |
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PCA8575_2
NXP B.V. 2007. All rights reserved.
Product data sheet
Rev. 02 — 21 March 2007
6 of 30
NXP Semiconductors
PCA8575
Remote 16-bit I/O expander for I2C-bus with interrupt
7.
Functional description
Refer to Figure 1 “Block diagram of PCA8575”.
7.1 Device address
Following a START condition, the bus master must send the address of the slave it is
accessing and the operation it wants to perform (read or write). The address of the
PCA8575 is shown in Figure 9. Slave address pins AD2, AD1, and AD0 choose 1 of
8 slave addresses. To conserve power, no internal pull-up resistors are incorporated on
AD2, AD1, and AD0. Address values depending on AD2, AD1, and AD0 can be found in
Remark: The General Call address (0000 0000b) and the Device ID address
(1111 100Xb) are reserved and cannot be used as device address. Failure to follow this
requirement will cause the PCA8575 not to acknowledge.
The last bit of the rst byte denes the operation to be performed. When set to logic 1 a
read is selected, while a logic 0 selects a write operation.
When AD2, AD1 and AD0 are held to VDD or VSS, the same address as the PCF8575 is
applied.
7.1.1 Address map
Fig 9.
PCA8575 address
R/W
002aab636
A6
A5
A4
A3
A2
A1
A0
programmable
slave address
Table 3.
PCA8575 address map
A6
A5
A4
A3
A2
A1
A0
Address (hex)
010000020h
010000121h
010001022h
010001123h
010010024h
010010125h
010011026h
010011127h
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相關(guān)代理商/技術(shù)參數(shù) |
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| PCA8576C | 制造商:PHILIPS 制造商全稱(chēng):NXP Semiconductors 功能描述:Universal LCD driver for low multiplex rates |
| PCA8576CH/Q900,157 | 功能描述:LCD 驅(qū)動(dòng)器 UNIVERSAL LCD DRIVER LOW MULTIPLEX RATES RoHS:否 制造商:Maxim Integrated 數(shù)位數(shù)量:4.5 片段數(shù)量:30 最大時(shí)鐘頻率:19 KHz 工作電源電壓:3 V to 3.6 V 最大工作溫度:+ 85 C 最小工作溫度:- 20 C 封裝 / 箱體:PDIP-40 封裝:Tube |
| PCA8576CH/Q900/1 | 制造商:PHILIPS 制造商全稱(chēng):NXP Semiconductors 功能描述:Universal LCD driver for low multiplex rates |
| PCA8576CH/Q900/1,1 | 功能描述:LCD 驅(qū)動(dòng)器 MULT DIG/SEG 200KHz RoHS:否 制造商:Maxim Integrated 數(shù)位數(shù)量:4.5 片段數(shù)量:30 最大時(shí)鐘頻率:19 KHz 工作電源電壓:3 V to 3.6 V 最大工作溫度:+ 85 C 最小工作溫度:- 20 C 封裝 / 箱體:PDIP-40 封裝:Tube |
| PCA8576CH/Q900/1,118 | 制造商:NXP Semiconductors 功能描述:Cut Tape 制造商:NXP Semiconductors 功能描述:0 |
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