h1_key

说明

MCP455X设备是具有I2C兼容接口的单通道、易失性、8位（257个擦除步）数字电位计。MCP455X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

• SingleResistor Network
• Potentiometer or Rheostat configuration options
• 8-bit: 256 Resistors (257 Steps)
• 5 kΩ
• 10kΩ
• 50kΩ
• 100 kΩ
• Zero-scale to Full-scale Wiper Operation
• Low Wiper Resistance – 75Ω typical
• Absolute (Rheostat) – 50 ppm typical (0°-70°C)
• Ratiometric (Potentiometer) – 15 ppm typical
• 100 kHz
• 400 kHz
• 3.4 MHz
• Brown-out Reset Protection – 1.5V typical
• Serial Interface Inactive Current – 2.5 uA typical
• High-Voltage Tolerant Digital Inputs Up to 12.5V
• 2.7V to 5.5V - Device Characteristics Specified
• 1.8V to 5.5V - Device Operation
• Wide Bandwidth (-3 dB) Operation – 2 MHz typical for 5.0Ω Device
• Extended Temperature Range (-40°C to +125°C)
• AEC-Q100 Grade 1 quarlified

参数