DS17885E-5,IC RTC 5V 8K NV RAM 28-TSOP
DS17885E-5+,IC RTC 5V 8K NV RAM 28-TSOP
DS17885EN-3+,IC RTC 3V 8K NV RAM 28TSOP
DS17885S-3,实时时钟
DS17885S-3+,IC RTC 3V 8K NV RAM 24-SOIC
DS17885S-5,IC RTC 5V 8K NV RAM 24-SOIC
DS17885S-5/T&R+,IC RTC CLK/CALENDAR PAR 24SOIC
DS17885S-5/T&R,实时时钟
