MFM8126S-70/90/12
ISSUE4.2:November1998
AC Chip / Sector Erase Waveforms
t
t
AH
AS
Address
CS
5555H
2AAAH
5555H
5555H
2AAAH
SA
t
GHWL
OE
t
WP
WE
t
WPH
t
CS
t
DH
10H/30H
5HH
80H
AAH
55H
AAH
Data
Vcc
t
DS
t
VCS
NOTES:
1. SA is the address for Sector Erase. Addresses = don't care for Chip Erase.
AC Waveforms for Data Polling During Embedded Algorithm Operations
t
CH
CS
t
DF
t
OE
OE
t
OEH
WE
t
OH
t
CE
*
HIGH Z
D7 =
Valid Data
D7
D7
t
WHWH 1 OR 2
HIGH Z
D0~7
Valid Data
D0~6=Invalid
D0~6
t
OE
D7 = Valid data (The device has completed the Embeded Operation).
*
7