Date   : Tue, 13 Mar 1990 17:35:09 GMT
From   : ogicse!zephyr.ens.tek.com!tektronix!gvgpsa!gold!grege@decwrl.dec.com (Gregory Ebert)
Subject: Need info on 5832 and 58321 clock chips

In article <C6C814F3BE1F8001B0@uhhepg.bitnet> RALPH@UHHEPG.BITNET (Ralph
Becker-Szendy) writes:
>Hi
>
>The subject line says it all: I need some information (pin assignment,
register
>locations, interfacing) for the MSM 5832 and RTC 58321 clock chips (in view of
>putting one of them onto my homebrew Z80 system).
>
OKI semiconductor makes them (617) 279-0293.

The 5832 has +/- 30 sec adjust, separate addr/data lines, has a funny
VCC/GND pin location, and lives in 18 pins. 

       1=VDD   18=hold
       2=WRITE 17=XT*
       3=READ  16=XT
       4=A0    15=+/-30SEC ADJ.
       5=A1    14=TEST
       6=A2    13=GND
       7£      12=D3
       8=CS    11=D2
       9=D0    10=D1

The 58321 looks like :

       1=CS2   16=VDD
       2=WR    15=XT
       3=RD    14=XT*
       4=D0    13=CS1
       5=D1    12=TEST
       6=D2    11=STOP
       7=D3    10=BUSY*
       8=GND    9=ADDR WRITE

Both chips require an external crystal, but have the oscillator guts
onchip. Send me a SASE and I'll give you copies of the data sheet.

Greg Ebert                       ..uunet!tektronix!gvgpsa!gold!grege
Grass Valley Group      
400 Providence Mine Rd           grege@gold.gvg.tek.com
Nevada City, CA 95959
(916) 478-4057