对比图
型号 RTC-62421A RTC-62421B RTC-7301DG
描述 Real Time Clock (RTC) IC Clock/Calendar Parallel 18-DIP (0.300", 7.62mm)Real Time Clock (RTC) IC Clock/Calendar Parallel 18-DIP (0.300", 7.62mm)Real Time Clock Parallel 18Pin PDIP
数据手册 ---
制造商 Epson Electronics (爱普生) Epson Electronics (爱普生) Epson Electronics (爱普生)
分类 实时时钟芯片实时时钟芯片实时时钟芯片
安装方式 Through Hole Through Hole Through Hole
封装 DIP-18 DIP-18 DIP
电源电压 4.5V ~ 5.5V 4.5V ~ 5.5V 2.4.5.5 VDC
频率 - - 32768 Hz
封装 DIP-18 DIP-18 DIP
工作温度 -40℃ ~ 85℃ -40℃ ~ 85℃ -
产品生命周期 Obsolete Obsolete Unknown
包装方式 Tube Tube -
RoHS标准 Non-Compliant Non-Compliant RoHS Compliant
含铅标准 Contains Lead Contains Lead Lead Free