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參數(shù)資料
型號(hào): PCA9575HF,118
廠商: NXP Semiconductors
文件頁數(shù): 7/38頁
文件大?。?/td> 0K
描述: IC I/O EXPANDER I2C 16B 24HWQFN
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: 1
接口: I²C,SM 總線
輸入/輸出數(shù): 16
中斷輸出:
頻率 - 時(shí)鐘: 400kHz
電源電壓: 1.1 V ~ 3.6 V
工作溫度: -40°C ~ 85°C
安裝類型: 表面貼裝
封裝/外殼: 24-WFQFN 裸露焊盤
供應(yīng)商設(shè)備封裝: 24-HWQFN(4x4)
包裝: 標(biāo)準(zhǔn)包裝
包括: POR
產(chǎn)品目錄頁面: 826 (CN2011-ZH PDF)
其它名稱: 568-4771-6
PCA9575_3
NXP B.V. 2009. All rights reserved.
Product data sheet
Rev. 03 — 9 November 2009
15 of 38
NXP Semiconductors
PCA9575
16-bit I2C-bus and SMBus, level translating, low voltage GPIO
7.6.9 Register 8 - Conguration port 0 register
This register congures the direction of the I/O pins. If a bit in this register is set (written
with logic 1), the corresponding port 0 pin is enabled as an input with high-impedance
output driver. If a bit in this register is cleared (written with logic 0), the corresponding
port 0 pin is enabled as an output. At reset, the device’s ports are inputs.
7.6.10 Register 9 - Conguration port 1 register
This register congures the direction of the I/O pins. If a bit in this register is set (written
with logic 1), the corresponding port 1 pin is enabled as an input with high-impedance
output driver. If a bit in this register is cleared (written with logic 0), the corresponding
port 1 pin is enabled as an output. At reset, the device’s ports are inputs.
Table 12.
Register 8 - Conguration port 0 register (address 08h) bit description
Legend: * default value.
Bit
Symbol
Access
Value
Description
7
C0.7
R/W
1*
congures the direction of the I/O pins
0 = corresponding port pin enabled as an output
1 = corresponding port pin congured as input
(default value)
6
C0.6
R/W
1*
5
C0.5
R/W
1*
4
C0.4
R/W
1*
3
C0.3
R/W
1*
2
C0.2
R/W
1*
1
C0.1
R/W
1*
0
C0.0
R/W
1*
Table 13.
Register 9 - Conguration port 1 register (address 09h) bit description
Legend: * default value.
Bit
Symbol
Access
Value
Description
7
C1.7
R/W
1*
congures the direction of the I/O pins
0 = corresponding port pin enabled as an output
1 = corresponding port pin congured as input
(default value)
6
C1.6
R/W
1*
5
C1.5
R/W
1*
4
C1.4
R/W
1*
3
C1.3
R/W
1*
2
C1.2
R/W
1*
1
C1.1
R/W
1*
0
C1.0
R/W
1*
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