参数资料
型号: CAT9555YI-T2
厂商: ON Semiconductor
文件页数: 14/16页
文件大小: 0K
描述: IC I/O EXPANDER I2C 16B 24TSSOP
标准包装: 1
接口: I²C,串行,SMBus
输入/输出数: 16
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: 24-TSSOP(0.173",4.40mm 宽)
供应商设备封装: 24-TSSOP
包装: 标准包装
包括: POR
产品目录页面: 807 (CN2011-ZH PDF)
其它名称: CAT9555YI-T2DKR
CAT9555
http://onsemi.com
7
INT: Interrupt Output
The opendrain interrupt output is activated when one of
the port pins configured as an input changes state (differs
from the corresponding input port register bit state). The
interrupt is deactivated when the input returns to its previous
state or the input port register is read.
Since there are two 8bit ports that are read independently,
the interrupt caused by Port 0 will not be cleared by a read
of Port 1, or vice versa.
Changing an I/O from an output to an input may cause a
false interrupt if the state of the pin does not match the
contents of the input port register.
Output Port
Register Data
Input Port
Register Data
Polarity
Register Data
Polarity
Inversion Register
Write
Polarity
Register
Data from
Shift Register
Read Pulse
Write Pulse
Write
Configuration
Data from
Shift Register
Data from
Shift Register
Configuration
Register
D
Q
FF
D
Q
FF
D
Q
LATCH
D
Q
FF
Q1
Q2
Output Port
Register
Input Port
Register
Figure 6. Simplified Schematic of I/Os
Pulse
Q
CK
Q
CK
Q
CK
To INT
VSS
VCC
I/O Pin
100 kW
相关PDF资料
PDF描述
616-220-311 UNIGUIDE 9" X .205" GREY
PCA9671D,118 IC I/O EXPANDER I2C 16B 24SOIC
616-220-310 UNIGUIDE 9" X .141" GREY
3448-58 STRAIN RELIEF 50 POS
3448-56 STRAIN RELIEF 34 POS
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