Microchip Technology

MCP795Wxx 实时时钟/日历

Microchip 的扩大了其功能丰富、成本低廉型计时解决方案的范围

Microchip Technology 的 MCP795Wxx 实时时钟/日历Microchip 的实时时钟高度集成了非易失性存储器和适应现实生活应用的各种高性价比功能。 其中包括带有时间戳的电池转换功能，该功能用于保持计时连续性，以记录每次电源故障的具体发生时间和持续时长。 需要更高准确度时，可通过数字计时来补偿随着温度变化产生的晶体频率漂移。

MCP795Wxx 系列是精确的实时时钟器件，可采用外部 32.768 KHz 晶体作为时钟源。 虽然所有晶体会在整个温度范围内会出现频率漂移，但绝大多数 RTCC 采用晶体计时。

特性
  • 三种用户存储器：
    • SRAM：64 字节
    • EEPROM：1 Kb 和 2 Kb
    • 唯一 ID：128 位
  • 报警：倒计时至 0.01 秒
  • 看门狗定时器：
    • 采用 SPI 或者 GPIO 的两个重复触发器
    • 从 15 微秒到 64 秒
  • 数字计时，调节范围大约为 22 秒/天
  • 事件检测输入：
    • 高速 - 可编程计数
    • 低速 - 可编程消抖
  • 启动时钟（限启动设备）：上电时 32 KHz 时钟输出
  • 工作速度：4.5 V 时 10 MHz

MCP795W1x Series

图片制造商零件编号描述可供货数量价格
IC RTC CLK/CALENDAR SPI 14SOICMCP795W10-I/SLIC RTC CLK/CALENDAR SPI 14SOIC178 - 立即发货$2.44查看详情
IC RTC CLK/CALENDAR SPI 14TSSOPMCP795W11-I/STIC RTC CLK/CALENDAR SPI 14TSSOP79 - 立即发货$2.63查看详情
IC RTC CLK/CALENDAR SPI 14TSSOPMCP795W10-I/STIC RTC CLK/CALENDAR SPI 14TSSOP991 - 立即发货$2.52查看详情
IC RTC CLK/CALENDAR SPI 14TSSOPMCP795W12-I/STIC RTC CLK/CALENDAR SPI 14TSSOP7 - 立即发货$2.63查看详情
IC RTC CLK/CALENDAR SPI 14SOICMCP795W11-I/SLIC RTC CLK/CALENDAR SPI 14SOIC0 - 立即发货$2.26查看详情
IC RTC CLK/CALENDAR SPI 14SOICMCP795W12-I/SLIC RTC CLK/CALENDAR SPI 14SOIC217 - 立即发货$2.58查看详情

MCP795W2x Series

图片制造商零件编号描述可供货数量价格
IC RTC CLK/CALENDAR SPI 14TSSOPMCP795W20-I/STIC RTC CLK/CALENDAR SPI 14TSSOP187 - 立即发货$2.63查看详情
IC RTC CLK/CALENDAR SPI 14SOICMCP795W21-I/SLIC RTC CLK/CALENDAR SPI 14SOIC98 - 立即发货$2.70查看详情
IC RTC CLK/CALENDAR SPI 14SOICMCP795W20-I/SLIC RTC CLK/CALENDAR SPI 14SOIC1059 - 立即发货$2.58查看详情
IC RTC CLK/CALENDAR SPI 14TSSOPMCP795W22-I/STIC RTC CLK/CALENDAR SPI 14TSSOP172 - 立即发货$2.76查看详情
IC RTC CLK/CALENDAR SPI 14SOICMCP795W22-I/SLIC RTC CLK/CALENDAR SPI 14SOIC64 - 立即发货$2.70查看详情
发布日期： 2013-01-14

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