W83877TF/W83877TG
Publication Release Date: May 2006
-127- Revision 0.7
AC Characteristics, FDC continued
PARAMETER SYM. TEST
CONDITIONS
MIN. TYP.
(NOTE 1)
MAX. UNIT
IOW or IOR response time
from DRQ
T
MRW
6/12
/20/24
μS
TC width TTC
135/220
/260
nS
RESET width TRST
1.8/3/3.
5
μS
INDEX width
T
IDX
0.5/0.9
/1.0
μS
DIR setup time to STEP
T
DST
1.0/1.6
/2.0
μS
DIR hold time from STEP
T
STD
24/40/4
8
μS
STEP pulse width
T
STP
6.8/11.5
/13.8
7/11.7
/14
7.2/11.9
/14.2
μS
STEP cycle width
T
SC
Note 2 Note 2 Note 2
μS
WD pulse width
T
WDD
100/185
/225
125/210
/250
150/235
/275
μS
Write precompensation TWPC
100/138
/225
125/210
/250
150/235
/275
μS
Notes:
1. Typical values for T = 25° C and normal supply voltage.
2. Programmable from 2 mS through 32 mS in 2 mS increments.
