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W83977F Datasheet, PDF (161/181 Pages) Winbond – PLUG & PLAY 1.0A COMPLIANT
W83977F/ W83977AF
11.3.4 EPP Data or Address Read Cycle Timing Parameters
PRELIMINARY
PARAMETER
SYM.
MIN.
MAX.
UNIT
Ax Valid to IOR Asserted
IOCHRDY Deasserted to IOR Deasserted
IOR Deasserted to Ax Valid
IOR Deasserted to IOW or IOR Asserted
IOR Asserted to IOCHRDY Asserted
PD Valid to SD Valid
IOR Deasserted to SD Hi-Z (Hold Time)
SD Valid to IOCHRDY Deasserted
WAIT Deasserted to IOCHRDY Deasserted
PD Hi-Z to PDBIR Set
WRITE Deasserted to IOR Asserted
WAIT Asserted to WRITE Deasserted
Deasserted to WRITE Modified
IOR Asserted to PD Hi-Z
WAIT Asserted to PD Hi-Z
Command Asserted to PD Valid
Command Deasserted to PD Hi-Z
WAIT Deasserted to PD Drive
WRITE Deasserted to Command
PBDIR Set to Command
PD Hi-Z to Command Asserted
Asserted to Command Asserted
WAIT Deasserted to Command Deasserted
Time out
PD Valid to WAIT Deasserted
PD Hi-Z to WAIT Deasserted
t1
40
nS
t2
0
nS
t3
10
10
nS
t4
40
t5
0
24
nS
t6
0
75
nS
t7
0
40
µS
t8
0
85
nS
t9
60
160
nS
t10
0
nS
t13
0
nS
t14
0
185
nS
t15
60
190
nS
t16
0
50
nS
t17
60
180
nS
t18
0
nS
t19
0
nS
t20
60
190
nS
t21
1
nS
t22
0
20
nS
t23
0
30
nS
t24
0
195
nS
t25
60
180
nS
t26
10
12
nS
t27
0
nS
t28
0
µS
- 149 -
Publication Release Date: March 1998
Revision 0.58