W83977F-A Datasheet, PDF (156/182 Pages) Winbond – WINBOND I/O

W83977F-A/ W83977G-A/ W83977AF-A/ W83977AG-A
14.3 AC Characteristics
14.3.1 FDC: Data rate = 1 MB, 500 KB, 300 KB, 250 KB/sec.
PARAMETER
SYM.
TEST
CONDITIONS
MIN.
SA9-SA0, AEN, DACK ,
TAR
25
CS, setup time to IOR ↓
SA9-SA0, AEN, DACK ,
TAR
0
hold time for IOR ↑
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
TYP.
(NOTE 1)
SA9-SA0, AEN, DACK ,
TAW
25
setup time to IOW ↓
SA9-SA0, AEN, DACK ,
TWA
0
hold time for IOW ↑
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
MAX.
UNIT
nS
nS
nS
80
nS
nS
50
nS
360/570 nS
/675
nS
nS
nS
nS
nS
360/570 nS
/675
μS
50
nS
nS
nS
nS
nS
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