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參數(shù)資料
| 型號： | MCP4451-502E/ML |
| 廠商： | Microchip Technology |
| 文件頁數(shù)： | 2/22頁 |
| 文件大小： | 0K |
| 描述： | IC POT 5K QUAD 8BIT 20QFN |
| 標(biāo)準(zhǔn)包裝： | 91 |
| 接片： | 257 |
| 電阻（歐姆）： | 5k |
| 電路數(shù)： | 4 |
| 溫度系數(shù)： | 標(biāo)準(zhǔn)值 150 ppm/°C |
| 存儲器類型： | 易失 |
| 接口： | I²C（設(shè)備位址） |
| 電源電壓： | 1.8 V ~ 5.5 V |
| 工作溫度： | -40°C ~ 125°C |
| 安裝類型： | 表面貼裝 |
| 封裝/外殼： | 20-VFQFN 裸露焊盤 |
| 供應(yīng)商設(shè)備封裝： | 20-QFN 裸露焊盤（4x4） |
| 包裝： | 管件 |
10
Digital Potentiometer Design Guide
Digital Potentiometer Solutions
I2C Interface
The I2C interface is a two wire interface, where the output
drivers are open drain. This protocol supports reads and
writes using only the interface’s two wires. The I2C protocol
allows multiple devices on the I2C bus, where each device
has a unique device address. The I2C protocol requires more
host controller firmware overhead than the SPI protocol, but
requires less hardware resources (2 pins vs. 3 or 4 pins).
The I2C protocol allows many devices on the I2C bus without
the need to increase the number of I/O pins dedicated by the
master controller. The typical I2C interface is shown. Several
of the Microchip digital potentiometer devices support high
voltage commands. This function requires an additional host
controller output pin.
Many microcontrollers offer this interface as a dedicated
hardware module, which eases the software requirement of
the protocol.
High voltage commands require the HVC/A0 pin forced to
the VIHH voltage, instead of the VIL voltage. In this state, the
WiperLock Technology bit can be enabled and disabled.
Controller to Single Peripheral
Controller to Multiple Peripherals (Multiple Chip Selects)
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| MCP4451-503E/ML | 功能描述:數(shù)字電位計 IC 50k I2Cquad Ch Pot 8bit volatile memory RoHS:否 制造商:Maxim Integrated 電阻:200 Ohms 溫度系數(shù):35 PPM / C 容差:25 % POT 數(shù)量:Dual 每 POT 分接頭:256 弧刷存儲器:Volatile 緩沖刷: 數(shù)字接口:Serial (3-Wire, SPI) 描述/功能:Dual Volatile Low Voltage Linear Taper Digital Potentiometer 工作電源電壓:1.7 V to 5.5 V 電源電流:27 uA 最大工作溫度:+ 125 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:TQFN-16 封裝:Reel |
| MCP4451-503E/ST | 功能描述:數(shù)字電位計 IC 50k I2Cquad Ch Pot 8bit volatile memory RoHS:否 制造商:Maxim Integrated 電阻:200 Ohms 溫度系數(shù):35 PPM / C 容差:25 % POT 數(shù)量:Dual 每 POT 分接頭:256 弧刷存儲器:Volatile 緩沖刷: 數(shù)字接口:Serial (3-Wire, SPI) 描述/功能:Dual Volatile Low Voltage Linear Taper Digital Potentiometer 工作電源電壓:1.7 V to 5.5 V 電源電流:27 uA 最大工作溫度:+ 125 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:TQFN-16 封裝:Reel |
| MCP4451T-502E/ST | 制造商:Microchip Technology Inc 功能描述:5K, I2C, QUAD CHANNEL POT, 8-BIT, VOLATILE MEMORY, TSSOP - Tape and Reel |
| MCP4452-103E/ST | 功能描述:數(shù)字電位計 IC 10k I2Cquad Ch Rheo 8bit volatile memory RoHS:否 制造商:Maxim Integrated 電阻:200 Ohms 溫度系數(shù):35 PPM / C 容差:25 % POT 數(shù)量:Dual 每 POT 分接頭:256 弧刷存儲器:Volatile 緩沖刷: 數(shù)字接口:Serial (3-Wire, SPI) 描述/功能:Dual Volatile Low Voltage Linear Taper Digital Potentiometer 工作電源電壓:1.7 V to 5.5 V 電源電流:27 uA 最大工作溫度:+ 125 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:TQFN-16 封裝:Reel |
| MCP4452-104E/ST | 功能描述:數(shù)字電位計 IC 100k I2Cquad Ch Rheo 8bit volatile memory RoHS:否 制造商:Maxim Integrated 電阻:200 Ohms 溫度系數(shù):35 PPM / C 容差:25 % POT 數(shù)量:Dual 每 POT 分接頭:256 弧刷存儲器:Volatile 緩沖刷: 數(shù)字接口:Serial (3-Wire, SPI) 描述/功能:Dual Volatile Low Voltage Linear Taper Digital Potentiometer 工作電源電壓:1.7 V to 5.5 V 電源電流:27 uA 最大工作溫度:+ 125 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:TQFN-16 封裝:Reel |
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