W83877ATF Datasheet, PDF (176/191 Pages) Winbond – enhanced version from Winbonds most popular I/O chip W83877F

W83877ATF
EPP Data or Address Write Cycle Timing Parameters
PARAMETER
Ax Valid to IOW Asserted
SD Valid to Asserted
IOW Deasserted to Ax Invalid
WAIT Deasserted to IOCHRDY Deasserted
Command Asserted to WAIT Deasserted
IOW Deasserted to IOW or IOR Asserted
IOCHRDY Deasserted to IOW Deasserted
WAIT Asserted to Command Asserted
IOW Asserted to WAIT Asserted
PBDIR Low to WRITE Asserted
WAIT Asserted to WRITE Asserted
WAIT Asserted to WRITE Change
IOW Asserted to PD Valid
WAIT Asserted to PD Invalid
PD Invalid to Command Asserted
IOW to Command Asserted
WAIT Asserted to Command Asserted
WAIT Deasserted to Command Deasserted
Command Asserted to WAIT Deasserted
Time out
Command Deasserted to WAIT Asserted
IOW Deasserted to WRITE Deasserted and PD invalid
SYM.
t1
t2
t3
t4
t5
t6
t7
t8
t9
t10
t11
t12
t13
t14
t15
t16
t17
t18
t19
t20
t21
t22
MIN.
40
10
10
0
10
40
0
60
0
0
60
60
0
0
10
5
60
60
0
10
0
0
MAX.
24
160
70
185
185
50
35
210
190
10
12
UNIT
nS
nS
nS
nS
nS
nS
nS
nS
nS
nS
nS
nS
nS
nS
nS
nS
nS
nS
µS
µS
nS
nS
Parallel Port FIFO Timing Parameters
PARAMETER
DATA Valid to nSTROBE Active
nSTROBE Active Pulse Width
DATA Hold from nSTROBE Inactive
BUSY Inactive to PD Inactive
BUSY Inactive to nSTROBE Active
nSTROBE Active to BUSY Active
SYMBOL
t1
t2
t3
t4
t5
t6
MIN.
600
600
450
80
680
MAX.
500
UNIT
nS
nS
nS
nS
nS
nS
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Publication Release Date: April 1998
Version 0.51