µPD31172
(g) Write timing in EPP1.7 mode
Parameter
CD (7:0) output delay time
STROBE# setup time
Symbol
t42
Conditions
MIN.
MAX.
30
Unit
ns
ns
ns
ns
µs
ns
ns
ns
ns
t43
3 T
4 T
3 T
10
SELECTIN#, AUTOFEED# setup time
IOCHRDY setup time
t44
t45
Timeout generation time
t46
IOCHRDY cancellation time
SELECTIN#, AUTOFEED# cancellation time
STROBE# cancellation time
CD (7:0) hold time
t47
3 T
3 T
t48
t49
1 T
30
t50
Remark T: Parallel interface internal clock cycle (41.6 ns (MIN.))
AD (24:0),
DATA (31:0)
(input)
Valid data
IOW# (input)
t
50
t
42
CD (7:0)
(output)
Valid data
t
43
t
49
STROBE#
(output)
t
44
t
48
SELECTIN#
AUTOFEED#
(output)
DIR1284
(output)
t
46
BUSY
(input)
t
45
t
47
IOCHRDY
(output)
34
Data Sheet U14388EJ2V0DS00
NEC [ NEC ]
