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说明

MCP434X设备是非易失性的7位（129步）数字电位计，带有EEPROM和SPI兼容接口。MCP434X系列提供端到端电阻值为5K岛、10K岛、50k岛和100K岛。这些设备提供WiperLock™技术，允许用户无限制地重新编程和锁定雨刮器设置。它适用于需要工厂修整或重新校准的设备。MCP434X设备提供了多种配置，简化了设计，同时最大限度地降低了成本、封装尺寸和引脚数量。

特性

• Quad Resistor Network
• Potentiometer or Rheostat Configuration Options
• 7-bit: 128 Resistors (129 Steps)
• 5kΩ
• 10kΩ
• 50kΩ
• 100kΩ
• Zero Scale to Full Scale Wiper Operation
• Low Wiper Resistance: 75Ω (typical)
• Absolute (Rheostat): 50 ppm typical (0°C to 70°C)
• Ratiometric (Potentiometer): 15 ppm typical
• Automatic Recall of Saved Wiper Setting
• WiperLock™ Technology
• SPI serial interface
• Brown-out reset protection (1.5V typical)
• Serial Interface Inactive current (2.5 uA typical)
• High-Voltage Tolerant Digital Inputs: Up to 12.5V
• Supports Split Rail Applications
• 2.7V to 5.5V - Device CharacteristicsSpecified
• 1.8V to 5.5V - Device Operation
• 2 MHz (typical) for 5.0 kΩ device
• Extended temperature range (-40°C to +125°C)

参数