參數(shù)資料
型號(hào)： MCP23017-E/SP
廠商： Microchip Technology
文件頁(yè)數(shù)： 23/48頁(yè)
文件大?。?/td> 0K
描述： IC I/O EXPANDER I2C 16B 28SDIP
產(chǎn)品培訓(xùn)模塊： GPIO Expanders
標(biāo)準(zhǔn)包裝： 15
接口： I²C
輸入/輸出數(shù)： 16
中斷輸出： 是
頻率 - 時(shí)鐘： 1.7MHz
電源電壓： 1.8 V ~ 5.5 V
工作溫度： -40°C ~ 125°C
安裝類型： 通孔
封裝/外殼： 28-DIP（0.300"，7.62mm）
供應(yīng)商設(shè)備封裝： 28-DIP
包裝： 管件
產(chǎn)品目錄頁(yè)面： 684 (CN2011-ZH PDF)
配用： MCP23X17EV-ND - BOARD EVAL FOR MCP23X17
GPIODM-KPLCD-ND - BOARD DEMO LCD GPIO EXP KEYPAD
2007 Microchip Technology Inc.
DS21952B-page 3
MCP23017/MCP23S17
1.0
DEVICE OVERVIEW
The MCP23017/MCP23S17 (MCP23X17) device
family provides 16-bit, general purpose parallel I/O
expansion for I2C bus or SPI applications. The two
devices differ only in the serial interface.
MCP23017 – I2C interface
MCP23S17 – SPI interface
The MCP23X17 consists of multiple 8-bit configuration
registers for input, output and polarity selection. The
system master can enable the I/Os as either inputs or
outputs by writing the I/O configuration bits (IODIRA/B).
The data for each input or output is kept in the
corresponding input or output register. The polarity of
the Input Port register can be inverted with the Polarity
Inversion register. All registers can be read by the
system master.
The 16-bit I/O port functionally consists of two 8-bit
ports (PORTA and PORTB). The MCP23X17 can be
configured to operate in the 8-bit or 16-bit modes via
IOCON.BANK.
There are two interrupt pins, INTA and INTB, that can
be associated with their respective ports, or can be
logically OR’ed together so that both pins will activate if
either port causes an interrupt.
The interrupt output can be configured to activate
under two conditions (mutually exclusive):
1.
When
any
input
state
differs
from
its
corresponding Input Port register state. This is
used to indicate to the system master that an
input state has changed.
2.
When an input state differs from a preconfigured
register value (DEFVAL register).
The Interrupt Capture register captures port values at
the time of the interrupt, thereby saving the condition
that caused the interrupt.
The Power-on Reset (POR) sets the registers to their
default values and initializes the device state machine.
The hardware address pins are used to determine the
device address.
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
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MCP23017T-E/SO 功能描述:接口-I/O擴(kuò)展器 16bit Input/Output Exp I2C interface RoHS:否 制造商:NXP Semiconductors 邏輯系列: 輸入/輸出端數(shù)量: 最大工作頻率:100 kHz 工作電源電壓:1.65 V to 5.5 V 工作溫度范圍:- 40 C to + 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:HVQFN-16 封裝:Reel
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MCP23017T-E/SS 功能描述:接口-I/O擴(kuò)展器 16bit Input/Output Exp I2C interface RoHS:否 制造商:NXP Semiconductors 邏輯系列: 輸入/輸出端數(shù)量: 最大工作頻率:100 kHz 工作電源電壓:1.65 V to 5.5 V 工作溫度范圍:- 40 C to + 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:HVQFN-16 封裝:Reel
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