INTERSIL
芯片, 实时时钟, 星期-日-月-年, 128 X 8, DFN-20
芯片, 实时时钟, D-D-M-Y, 8MSOP
MICROCHIP
芯片, 实时时钟, 日:月:年, 时:分:秒, 128X8, SOIC-8