Support/peripheral/other chips starting from 58

MSM5832	CMOS real time clock/calendar
Comment:	7 function - second, minute, hour, day of week, day, month, and year. 12 or 24 hour format.
Package:	18-pin DIP
Manufacturers:	OKI
OKI	MSM5832RS
MSM58321	CMOS real time clock/calendar
Comment:	7 function - second, minute, hour, day of week, day, month, and year. 12 or 24 hour format.
Package:	16-pin DIP
Manufacturers:	OKI
OKI	MSM58321RS