参数资料
型号: MCP23016T-I/SS
厂商: Microchip Technology
文件页数: 3/38页
文件大小: 0K
描述: IC I/O EXPANDER I2C 16B 28SSOP
标准包装: 2,100
接口: I²C
输入/输出数: 16
中断输出:
频率 - 时钟: 400kHz
电源电压: 2 V ~ 5.5 V
工作温度: -40°C ~ 85°C
安装类型: 表面贴装
封装/外壳: 28-SSOP(0.209",5.30mm 宽)
供应商设备封装: 28-SSOP
包装: 带卷 (TR)
包括: POR
2007 Microchip Technology Inc.
DS20090C-page 11
MCP23016
1.7.6
I/O EXPANDER CONTROL
REGISTER
IOCON0 controls the functionality of the
MCP23016.
The IARES (Interrupt Activity Resolution) bit controls
the sampling frequency of the GP port pins. The higher
the sampling frequency, the higher the device current
requirements. If this bit is ‘0’ (default), the maximum
time to detect the activity on the port is 32 ms (max.),
which results in lower standby current. If this bit is ‘1’,
the maximum time to detect activity on the port is
200 sec. (max.) and results in higher standby current.
REGISTER 1-11:
IOCON0 - I/0 EXPANDER CONTROL REGISTER
U-0
R/W-0
IARES
bit 7
bit 0
bit 1-7
Unimplemented bit: Read as ‘0’
bit 0
IARES
: Interrupt Activity Resolution
1 = Fast sample rate
0 = Normal sample rate
Legend:
R = Readable bit
W = Writable bit
U = Unimplemented bit, read as ‘0’
- n = Value at POR
‘1’ = Bit is set
‘0’ = Bit is cleared
x = Bit is unknown
IOCON1 is a shadow register for IOCON0. Access to IOCON1 results in access to IOCON0.
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