MFM8516 - 70/90/12/15
ISSUE 4.7 : NOVEMBER 1998
AC Waveforms for Toggle Bit During Embedded Algorithm Operations
CS
WE
tOEH
OE
*
D6 =
Stop Toggling
D0-D7
Valid
D6 = Toggle
DATA (D0-D7)
D6 = Toggle
tOE
* D6 stops toggling ( the device has completed the embedded operations)
AC Waveforms Chip / Sector Erase
tAS
tAH
Address
5555H
2AAAH
5555H
5555H
2AAAH
SA
CS
OE
t
GHWL
t
t
WP
WE
WPH
t
CS
t
DH
Data
Vcc
55H
AAH
80H
AAH
55H
10H/30H
t
DS
t
VCS
NOTES:
1. SA is the address for sector erase. Addresses = don't care for Chip Erase.
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