參數(shù)資料
型號(hào): MCP23016-I/SS
廠商: Microchip Technology
文件頁(yè)數(shù): 3/38頁(yè)
文件大?。?/td> 0K
描述: IC I/O EXPANDER I2C 16B 28SSOP
標(biāo)準(zhǔn)包裝: 47
接口: I²C
輸入/輸出數(shù): 16
中斷輸出:
頻率 - 時(shí)鐘: 400kHz
電源電壓: 2 V ~ 5.5 V
工作溫度: -40°C ~ 85°C
安裝類(lèi)型: 表面貼裝
封裝/外殼: 28-SSOP(0.209",5.30mm 寬)
供應(yīng)商設(shè)備封裝: 28-SSOP
包裝: 管件
包括: POR
產(chǎn)品目錄頁(yè)面: 684 (CN2011-ZH PDF)
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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