w83977tf Winbond Electronics Corp America, w83977tf Datasheet - Page 143

• Manufacturer Part Number: w83977tf
• Description: Winbond I/o
• Manufacturer: Winbond Electronics Corp America

12.3.6 Parallel Port FIFO Timing Parameters
12.3.7 ECP Parallel Port Forward Timing Parameters
12.3.8 ECP Parallel Port Reverse Timing Parameters
PARAMETER
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
PARAMETER
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
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
- 132 -
SYMBOL
SYMBOL
SYMBOL
t1
t2
t3
t4
t5
t6
t1
t2
t3
t4
t5
t6
t7
t8
t1
t2
t3
t4
t5
t6
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
PRELIMINARY
MAX.
MAX.
MAX.
500
180
180
200
180
200
200
60
60
W83977TF
Revision 0.62
UNIT
UNIT
UNIT
nS
nS
nS
nS
nS
nS
nS
nS
nS
nS
nS
nS
nS
nS
nS
nS
nS
nS
nS
nS