W83787IF Datasheet, PDF (88/123 Pages) Winbond – WINBOND I/O WITH SERIAL-INFRARED SUPPORT

W83787IF
8.3 AC Characteristics, FDC continued
PARAMETER
SYM.
MIN.
TYP.
(NOTE 1)
IOW or IOR response time
from DRQ
TC width
RESET width
INDEX width
DIR setup time to STEP
DIR hold time from STEP
STEP pulse width
STEP cycle width
WD pulse width
Write precompensation
TMRW
TTC
TRST
TIDX
TDST
TSTD
TSTP
TSC
TWDD
TWPC
135/220
/260
1.8/3/3.5
0.5/0.9
/1.0
1.0/1.6
/2.0
24/40/48
6.8/11.5
/13.8
Note 2
100/185
/225
100/138
/225
6/12
/20/24
7/11.7
/14
Note 2
125/210
/250
125/210
/250
Notes:
1. Typical values for T = 25° C and normal supply voltage.
2. Programmable from 2 mS through 32 mS in 2 mS increments.
MAX.
7.2/11.9
/14.2
Note 2
150/235
/275
150/235
/275
UNIT
TEST
CONDITION
S
µS
nS
µS
µS
µS
µS
µS
µS
µS
µS
8.3.2 IDE
PARAMETER
CS0 , CS1 delay from SA valid
DBENL, DBENH delay from AEN, IOCS16, SA
IDED7 to D7 delay (read cycle)
D7 to IDED7 delay (write cycle)
SYMBOL
T1
T2
T4
T3
MAX.
50
50
50
50
UNIT
nS
nS
nS
nS
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Publication ReleaseDate:Sep 1995
Revision A1