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| 型號： | MCP4012T-202E/CH |
| 廠商： | Microchip Technology |
| 文件頁數(shù)： | 22/54頁 |
| 文件大?。?/td> | 0K |
| 描述： | IC DGTL POT 2.1K 1CH RHE SOT23-6 |
| 標準包裝： | 1 |
| 接片： | 64 |
| 電阻（歐姆）： | 2.1k |
| 電路數(shù)： | 1 |
| 溫度系數(shù)： | 標準值 150 ppm/°C |
| 存儲器類型： | 易失 |
| 接口： | 2 線串行（芯片選擇，增/減） |
| 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： | SOT-23-6 |
| 供應(yīng)商設(shè)備封裝： | SOT-23-6 |
| 包裝： | 標準包裝 |
| 產(chǎn)品目錄頁面： | 674 (CN2011-ZH PDF) |
| 其它名稱： | MCP4012T-202E/CHDKR |
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2006 Microchip Technology Inc.
DS21978C-page 29
MCP4011/2/3/4
5.0
SERIAL INTERFACE
5.1
Overview
The MCP4011/2/3/4 utilizes a simple 2-wire interface to
increment or decrement the digital potentiometer’s
wiper terminal (W). This interface uses the CS and U/D
pins. The CS pin is the Chip Select input, while the U/D
pin is the Up/Down input.
The Increment/Decrement protocol enables the device
to move one step at a time through the range of
possible resistance values. The wiper value is
initialized with the “default” value upon power-up.
A wiper value of 00h connects the wiper to terminal B.
A wiper value of 3Fh connects the wiper to terminal A.
Increment commands move the wiper toward terminal
A, but will not increment to a value greater than 3Fh.
Decrement commands move the wiper toward terminal
B, but will not decrement below 00h.
Refer to Section 1.0 “Electrical Characteristics”,
AC/DC Electrical Characteristics table for detailed input
threshold and timing specifications.
Communication is unidirectional. Therefore, the value
of the current wiper setting cannot be read out of the
MCP401X device.
5.2
Serial Commands
The MCP401X devices support eight serial commands.
Six of these commands are for support and to ease
migration with the MCP402X family of devices. The
commands can be grouped into the following types:
Serial Commands
High-voltage Serial Commands
All the commands are shown in Table 5-1.
The command type is determined by the voltage level
the CS pin is driven to. The initial state that the CS pin
must be driven is VIH. From VIH, the two levels that the
CS pin can be driven are:
VIL
VIHH
If the CS pin is driven from VIH to VIL, a serial
command is selected. If the CS pin is driven from VIH to
VIHH, a high-voltage serial command is selected.
Support of the high-voltage serial commands is for
compatiblity with the MCP402X devices.
TABLE 5-1:
COMMANDS
Command Name
High Voltage
on CS pin?
—
—
—
—
Yes
Yes
Yes
Yes
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| MCP4012T-502E/CH | 功能描述:數(shù)字電位計 IC 5k U/Dsingle 6-bit V Rheostat 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 安裝風格:SMD/SMT 封裝 / 箱體:TQFN-16 封裝:Reel |
| MCP4012T-502E/CH | 制造商:Microchip Technology Inc 功能描述:; LEADED PROCESS COMPATIBLE:YES; PEAK RE 制造商:Microchip Technology Inc 功能描述:IC, DIG POT, 5 kohm, 64 Steps, Single, SOT-23 |
| MCP4012T-502E/MC | 制造商:MICROCHIP 制造商全稱:Microchip Technology 功能描述:Low-Cost 64-Step Volatile Digital POT |
| MCP4012T-502E/MS | 制造商:MICROCHIP 制造商全稱:Microchip Technology 功能描述:Low-Cost 64-Step Volatile Digital POT |
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