STMicroelectronics M48T58Y-70PC1, Real Time Clock (RTC), 8192B RAM Parallel, 28-Pin PCDIP
STMicroelectronics M48T58Y-70PC1, Real Time Clock (RTC), 8192B RAM Parallel, 28-Pin PCDIP, Functions: Battery Backup, Calendar, Chip Deselect, Switch Over, Write Protection, Date Format: DW:DM:M:Y, Time Format: HH:MM:SS, Mounting Type: Through Hole, Dimensions: 39.88 x 18.34 x 8.89mm, Length: 39.88mm, Width: 18.34mm, Maximum Operating Supply Voltage: 5.5 V, Maximum Operating Temperature: +70 °C, Minimum Operating Supply Voltage: 4.5 V