W83977EG Datasheet, PDF (118/142 Pages) Winbond – WINBOND ISA I/O

W83977EF-AW/W83977EG-AW
13.3 AC Characteristics
13.3.1 FDC: Data rate = 1 MB, 500 KB, 300 KB, 250 KB/sec.
PARAMETER
SA9-SA0, AEN, DACK#,
CS#, setup time to IOR#↓
SA9-SA0, AEN, DACK#,
hold time for IOR#↑
SYM.
TAR
TAR
TEST
CONDITIONS
MIN.
25
0
IOR width
TRR
80
Data access time from
IOR#↓
TFD CL = 100 pf
Data hold from IOR#↓
TDH CL = 100 pf
10
SD to from IOR# ↑
TDF CL = 100 pf
10
IRQ delay from IOR#↑
TRI
SA9-SA0, AEN, DACK#,
setup time to IOW#↓
TAW
25
SA9-SA0, AEN, DACK#,
hold time for IOW#↑
TWA
0
IOW# width
TWW
60
Data setup time to IOW#↑ TDW
60
Data hold time from IOW#↑ TWD
0
IRQ delay from IOW#↑
TWI
DRQ cycle time
DRQ delay time DACK#↓
DRQ to DACK# delay
DACK# width
IOR# delay from DRQ
IOW# delay from DRQ
TMCY
TAM
TMA
TAA
TMR
TMW
27
0
260/430
/510
0
0
TYP.
(NOTE 1)
MAX. UNIT
nS
nS
nS
80
nS
nS
50
nS
360/570
/675
nS
nS
nS
nS
nS
nS
360/570
/675
nS
μS
50
nS
nS
nS
nS
nS
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