参数资料
| 型号： | MCP23009-E/MG |
| 厂商： | Microchip Technology |
| 文件页数： | 14/50页 |
| 文件大小： | 0K |
| 描述： | IC I/O EXPANDER I2C 8B 16QFN |
| 标准包装： | 120 |
| 接口： | I²C |
| 输入/输出数： | 8 |
| 中断输出： | 是 |
| 频率 - 时钟： | 3.4MHz |
| 电源电压： | 1.8 V ~ 5.5 V |
| 工作温度： | -40°C ~ 125°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 16-VFQFN 裸露焊盘 |
| 供应商设备封装： | 16-QFN-EP（3x3） |
| 包装： | 管件 |
| 产品目录页面： | 684 (CN2011-ZH PDF) |
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2009 Microchip Technology Inc.
DS22121B-page 21
MCP23009/MCP23S09
1.6.6
CONFIGURATION REGISTER
The Sequential Operation (SEQOP) controls the
incrementing function of the address pointer. If the
address pointer is disabled, the address pointer does
not automatically increment after each byte is clocked
during a serial transfer. This feature is useful when it is
desired to continuously poll (read) or modify (write) a
register.
The Open-Drain (ODR) control bit enables/disables the
INT pin for open-drain configuration.
The Interrupt Polarity (INTPOL) sets the polarity of the
INT pin. This bit is functional only when the ODR bit is
cleared, configuring the INT pin as active push-pull.
The Interrupt Clearing Control (INTCC) configures how
interrupts are cleared. When set (INTCC = 1), the
interrupt is cleared when the INTCAP register is read.
When cleared (INTCC = 0), the interrupt is cleared
when the GPIO register is read.
The interrupt can only be cleared when the interrupt
condition is inactive. Refer to Section 1.7.4 “Clearing
Interrupts” for details.
REGISTER 1-6:
IOCON – I/O EXPANDER CONFIGURATION REGISTER
U-0
R/W-0
U-0
R/W-0
-
SEQOP
-
ODR
INTPOL
INTCC
bit 7
bit 0
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
bit 7
Unimplemented: Reads as 0
bit 6
Unimplemented: Reads as 0
bit 5
SEQOP: Sequential Operation mode bit.
1
= Sequential operation disabled, address pointer does not increment
0
= Sequential operation enabled, address pointer increments
bit 4
Unimplemented: Reads as 0
bit 3
Unimplemented: Reads as 0
bit 2
ODR: Configures the INT pin as an open-drain output.
1
= Open-drain output (overrides the INTPOL bit)
0
= Active driver output (INTPOL bit sets the polarity)
bit 1
INTPOL: Sets the polarity of the INT output pin.
1
= Active-high
0
= Active-low
bit 0
INTCC: Interrupt Clearing Control
1 = Reading INTCAP register clears the interrupt
0 = Reading GPIO register clears the interrupt
相关PDF资料 |
PDF描述 |
|---|---|
| MCP23018-E/SO | IC I/O EXPANDER I2C 16B 28SOIC |
| MCP23018-E/SP | IC I/O EXPANDER I2C 16B 28SDIP |
| MCP23017-E/SP | IC I/O EXPANDER I2C 16B 28SDIP |
| MCP23S08-E/ML | IC I/O EXPANDER SPI 8B 20QFN |
| MCP23S09-E/SO | IC I/O EXPANDER SPI 8B 18SOIC |
相关代理商/技术参数 |
参数描述 |
|---|---|
| MCP23009EP | 制造商:MICROCHIP 制造商全称:Microchip Technology 功能描述:8-Bit I/O Expander with Open-Drain Outputs |
| MCP23009ESO | 制造商:MICROCHIP 制造商全称:Microchip Technology 功能描述:8-Bit I/O Expander with Open-Drain Outputs |
| MCP23009ESS | 制造商:MICROCHIP 制造商全称:Microchip Technology 功能描述:8-Bit I/O Expander with Open-Drain Outputs |
| MCP23009T | 制造商:MICROCHIP 制造商全称:Microchip Technology 功能描述:8-Bit I/O Expander with Open-Drain Outputs |
| MCP23009T-E/MG | 功能描述:接口 - 专用 8B I/O Expander SPI interface RoHS:否 制造商:Texas Instruments 产品类型:1080p60 Image Sensor Receiver 工作电源电压:1.8 V 电源电流:89 mA 最大功率耗散: 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:BGA-59 |
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