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
 
(c) Copyright 2003 Gennadiy Shvets