图片仅供参考,请以实物为准 DS1744-70IND+ 生产厂商: Maxim Integrated Products 产品描述: Real Time Clock Parallel 32KByte 28-Pin EDIP 标准包装 Bulk 满1000元免运费及包装费 参数 参数 数值 规格书 数据手册下载 Package 28EDIP Time Format HH:MM:SS Date Format DW:DM:M:Y Function Clock/Calendar/NV Timekeeping RAM Operating Supply Voltage 5 V Bus Type Parallel User RAM 32768 Byte Operating Temperature -40 to 85 °C 同系列产品