參數(shù)資料
型號: PCA9539RBS,118
廠商: NXP Semiconductors
文件頁數(shù): 34/37頁
文件大?。?/td> 0K
描述: IC I/O EXPANDER I2C 16B 24HVQFN
特色產(chǎn)品: NXP - I2C Interface
標(biāo)準(zhǔn)包裝: 1
接口: I²C,SM 總線
輸入/輸出數(shù): 16
中斷輸出:
頻率 - 時鐘: 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-VFQFN 裸露焊盤
供應(yīng)商設(shè)備封裝: 24-HVQFN(4x4)
包裝: 標(biāo)準(zhǔn)包裝
包括: POR
其它名稱: 568-8709-6
PCA9539_PCA9539R
All information provided in this document is subject to legal disclaimers.
NXP B.V. 2013. All rights reserved.
Product data sheet
Rev. 6 — 6 February 2013
6 of 37
NXP Semiconductors
PCA9539; PCA9539R
16-bit I2C-bus and SMBus low power I/O port with interrupt and reset
6.
Functional description
6.1 Device address
6.2 Registers
6.2.1 Command byte
The command byte is the first byte to follow the address byte during a write transmission.
It is used as a pointer to determine which of the following registers will be written or read.
Fig 5.
PCA9539; PCA9539R device address
R/W
002aad724
1
0
1
A1
A0
programmable
slave address
fixed
Table 4.
Command byte
Command
Register
0
Input port 0
1
Input port 1
2
Output port 0
3
Output port 1
4
Polarity inversion port 0
5
Polarity inversion port 1
6
Configuration port 0
7
Configuration port 1
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