W83977AF Information Storage Devices, Inc, W83977AF Datasheet - Page 163
W83977AF
Manufacturer Part Number
W83977AF
Description
W83877TF Plus Kbc, Cir, RTC
Manufacturer
Information Storage Devices, Inc
Datasheet
1.W83977AF.pdf
(181 pages)
- Current page: 163 of 181
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11.3.6 Parallel Port FIFO Timing Parameters
11.3.7 ECP Parallel Port Forward Timing Parameters
11.3.8 ECP Parallel Port Reverse Timing Parameters
nAUTOFD Valid to nSTROBE Asserted
PD Valid to nSTROBE Asserted
BUSY Deasserted to nAUTOFD Changed
BUSY Deasserted to PD Changed
nSTROBE Deasserted to BUSY Deasserted
BUSY Deasserted to nSTROBE Asserted
nSTROBE Asserted to BUSY Asserted
BUSY Asserted to nSTROBE Deasserted
PD Valid to nACK Asserted
nAUTOFD Deasserted to PD Changed
nAUTOFD Asserted to nACK Asserted
nAUTOFD Deasserted to nACK Deasserted
nACK Deasserted to nAUTOFD Asserted
PD Changed to nAUTOFD Deasserted
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
PARAMETER
PARAMETER
PARAMETER
- 151 -
SYMBOL
SYMBOL
SYMBOL
t1
t2
t3
t4
t5
t6
t1
t2
t3
t4
t5
t6
t7
t8
t1
t2
t3
t4
t5
t6
W83977F/ W83977AF
Publication Release Date: March 1998
MIN.
MIN.
MIN.
600
600
450
680
80
80
80
80
80
80
80
0
0
0
0
0
0
0
0
MAX.
MAX.
MAX.
200
200
500
180
180
200
180
PRELIMINARY
60
60
Revision 0.58
UNIT
UNIT
UNIT
nS
nS
nS
nS
nS
nS
nS
nS
nS
nS
nS
nS
nS
nS
nS
nS
nS
nS
nS
nS
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