参数资料
型号: PCA9536D,112
厂商: NXP Semiconductors
文件页数: 20/22页
文件大小: 0K
描述: IC I/O EXPANDER I2C 4B 8SOIC
标准包装: 100
接口: I²C,SM 总线
输入/输出数: 4
中断输出:
频率 - 时钟: 400kHz
电源电压: 2.3 V ~ 5.5 V
工作温度: -40°C ~ 85°C
安装类型: 表面贴装
封装/外壳: 8-SOIC(0.154",3.90mm 宽)
供应商设备封装: 8-SO
包装: 管件
包括: POR
其它名称: 935277415112
PCA9536D
PCA9536D-ND
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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