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參數(shù)資料
型號: PCA9536DP/DG,118
廠商: NXP Semiconductors
文件頁數(shù): 20/22頁
文件大?。?/td> 0K
描述: IC I/O EXPANDER I2C 4B 8TSSOP
特色產(chǎn)品: NXP - I2C Interface
標準包裝: 1
接口: I²C,SM 總線
輸入/輸出數(shù): 4
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: 8-TSSOP,8-MSOP(0.118",3.00mm 寬)
供應(yīng)商設(shè)備封裝: 8-TSSOP
包裝: 標準包裝
包括: POR
其它名稱: 568-8252-6
PCA9536_5
NXP B.V. 2010. All rights reserved.
Product data sheet
Rev. 05 — 25 January 2010
7 of 22
NXP Semiconductors
PCA9536
4-bit I2C-bus and SMBus I/O port
6.4 Device address
6.5 Bus transactions
Data is transmitted to the PCA9536 registers using the Write mode as shown in Figure 7
and Figure 8. Data is read from the PCA9536 registers using the Read mode as shown in
Figure 9 and Figure 10. These devices do not implement an auto-increment function, so
once a command byte has been sent, the register which was addressed will continue to
be accessed by reads until a new command byte has been sent.
Remark: At power-on reset, all registers return to default values.
Fig 5.
Simplified schematic of IO0 to IO3
VDD
IO0 to IO3
output port
register data
configuration
register
DQ
CK
Q
data from
shift register
write configuration
pulse
output port
register
DQ
CK
write pulse
polarity inversion
register
DQ
CK
data from
shift register
write polarity
pulse
input port
register
DQ
CK
read pulse
input port
register data
polarity inversion
register data
002aab852
FF
data from
shift register
FF
Q1
100 k
Ω
Q2
VSS
Fig 6.
PCA9536 device address
R/W
002aab853
1
0
1
fixed
slave address
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