MCP4242中文资料7-Bit Dual Digital POT with NVM and SPI数据手册Microchip规格书

描述 Description

The MCP41/424X devices are non-volatile, 7-bit (129 wiper steps) digital potentiometers with EEPROM and an SPI compatible interface. The MCP41/42XX family is available with end-to-end resistor values of 5KΩ, 10KΩ, 50kΩ and 100KΩ. These devices offer WiperLock™ Technology which allows the user unlimited reprogramming and locking of the wiper setting. It is useful for equipment that requires factory trimming or recalibration. The MCP41/42XX devices offer a variety of configurations simplifying design while minimizing cost, package size and pin count.

特性 Features

7-bit:128 Resistors with Taps to VSS and VDD
SPI compatible interace
Automatic Recall of Potentiometer Wiper Settings
Resistance Values: 5kΩ, 10kΩ, 50kΩ,100kΩ
Absolute (Rheostat): Ratiometric (Potentiometer): Low Wiper Resistance: 100Ω (typ.) li>WiperLock™ Technology to Secure the EEPROM
Low-Power Operation: 1µA Max Static Current
Wide Operating Voltage: 2.7V to 5.5V
Extended Temperature Range: -40°C to +125°C

简介

MCP4242属于集成电路（IC）的数字电位计。由Microchip制造生产的MCP4242数字电位计数字电位器是一系列集成电路器件，可提供类似于传统机械电位器或变阻器的可调节电阻，但通过电子信号而非机械输入来进行控制。虽然这些器件的电阻可耗散的电能相对有限，但其电子控制能力有助于小型化、自动化和远程控制信号级模拟电路，而这些电路本来可能会使用机械电位器。