- 您現(xiàn)在的位置：買賣IC網(wǎng) > PDF目錄1953 > MCP23S09-E/P (Microchip Technology)IC I/O EXPANDER SPI 8B 18DIP PDF資料下載
參數(shù)資料
| 型號： | MCP23S09-E/P |
| 廠商： | Microchip Technology |
| 文件頁數(shù)： | 50/50頁 |
| 文件大?。?/td> | 0K |
| 描述： | IC I/O EXPANDER SPI 8B 18DIP |
| 標準包裝： | 25 |
| 接口： | SPI |
| 輸入/輸出數(shù)： | 8 |
| 中斷輸出： | 是 |
| 頻率 - 時鐘： | 10MHz |
| 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： | 18-DIP（0.300"，7.62mm） |
| 供應商設備封裝： | 18-PDIP |
| 包裝： | 管件 |
| 產(chǎn)品目錄頁面： | 684 (CN2011-ZH PDF) |
第1頁第2頁第3頁第4頁第5頁第6頁第7頁第8頁第9頁第10頁第11頁第12頁第13頁第14頁第15頁第16頁第17頁第18頁第19頁第20頁第21頁第22頁第23頁第24頁第25頁第26頁第27頁第28頁第29頁第30頁第31頁第32頁第33頁第34頁第35頁第36頁第37頁第38頁第39頁第40頁第41頁第42頁第43頁第44頁第45頁第46頁第47頁第48頁第49頁當前第50頁
2009 Microchip Technology Inc.
DS22121B-page 9
MCP23009/MCP23S09
1.4
Multi-bit Address Decoder
The ADDR pin is used to set the slave address of the
MCP23009 (I2C only) to allow up to eight devices on
the bus using only a single pin. Typically, this would
require three pins.
The multi-bit Address Decoder employs a basic FLASH
ADC architecture (Figure 1-4). The seven comparators
generate 8 unique values based on the analog input.
This value is converted to a 3-bit code which
corresponds to the address bits (A2, A1, A0) in the
serial OPCODE.
Sequence
of
Operation
(see
for
timings):
1.
Upon power up (after VDD stabilizes) the module
becomes active after time tADEN. Note, the
analog value on the ADDR pin must be stable
before this point to ensure accurate address
assignment.
2.
The 3-bit address is latched after tADDRLAT.
3.
The module powers down after the first rising
edge of the serial clock is detected (tADDIS).
Once the address bits are latched, the device will keep
the slave address until a POR or reset condition
occurs.
1.4.1
CALCULATING VOLTAGE ON ADDR
When calculating the required voltage on the ADDR pin
(V2), the set point should be the mid-point of the LSb of
the ADC.
The examples in Figure 1-2 and Figure 1-3 show how
to determine the mid point voltage (V2) and the range
of voltages based on a voltage divider circuit. The
maximum
tolerance
is
20%,
however,
it
is
recommended to use 5% tolerance worst case (10%
total tolerance).
FIGURE 1-2:
VOLTAGE DIVIDER EXAMPLE
R2
A0
A1
A2
V2
R1
VDD
MCP23009 Only
VDD
VSS
ADDR
相關PDF資料 |
PDF描述 |
|---|---|
| MCP23S17T-E/ML | IC I/O EXPANDER SPI 16B 28QFN |
| MCP25055-I/SL | IC I/O EXPANDER CAN 8B 14SOIC |
| MCP2510T-E/SO | IC CAN CONTROLLER W/SPI 18-SOIC |
| MCP2515T-E/ST | IC CAN CONTROLLER W/SPI 20TSSOP |
| MCP2551-E/SN | IC TRANSCEIVER CAN HI-SPD 8-SOIC |
相關代理商/技術參數(shù) |
參數(shù)描述 |
|---|---|
| MCP23S09ESO | 制造商:MICROCHIP 制造商全稱:Microchip Technology 功能描述:8-Bit I/O Expander with Open-Drain Outputs |
| MCP23S09ESS | 制造商:MICROCHIP 制造商全稱:Microchip Technology 功能描述:8-Bit I/O Expander with Open-Drain Outputs |
| MCP23S09T | 制造商:MICROCHIP 制造商全稱:Microchip Technology 功能描述:8-Bit I/O Expander with Open-Drain Outputs |
| MCP23S09T-E/MG | 功能描述:接口 - 專用 8B I/O Expander SPI interface RoHS:否 制造商:Texas Instruments 產(chǎn)品類型:1080p60 Image Sensor Receiver 工作電源電壓:1.8 V 電源電流:89 mA 最大功率耗散: 最大工作溫度:+ 85 C 安裝風格:SMD/SMT 封裝 / 箱體:BGA-59 |
| MCP23S09T-E/P | 制造商:MICROCHIP 制造商全稱:Microchip Technology 功能描述:8-Bit I/O Expander with Open-Drain Outputs |
發(fā)布緊急采購，3分鐘左右您將得到回復。