µPD31172
(f) Read timing in EPP1.9 mode
Parameter
Symbol
t32
Conditions
MIN.
MAX.
3 T
Unit
ns
IOCHRDY setup time
STROBE# setup time, DIR1284 cancellation time
t33
5 T
ns
(from IOR# ↓)
STROBE# setup time, DIR1284 cancellation time
t34
t35
t36
4 T
6 T
ns
ns
ns
(from BUSY ↓)
SELECTIN#, AUTOFEED# setup time
(from IOR# ↓)
SELECTIN#, AUTOFEED# setup time
30
(from DIR1284 ↑)
Timeout generation time
t37
t38
10
µs
SELECTIN#, AUTOFEED# cancellation time
3 T
ns
(from IOR# ↑)
CD (7:0) hold time
t39
t40
t41
0
ns
ns
ns
IOCHRDY cancellation time
3 T
STROBE# cancellation time, DIR1284 setup time
1 T
Remark T: Parallel interface internal clock cycle (41.6 ns (MIN.))
AD (24:0)
(input)
t
37
IOR# (input)
Hi-Z
Hi-Z
DATA (31:0)
(output)
Valid data
t
32
t
40
IOCHRDY
(output)
t
33
t
41
STROBE#
(output)
t
34
t
36
t
38
SELECTIN#
AUTOFEED#
(output)
t
35
t
39
CD (7:0)
(input)
Hi-Z
Hi-Z
Valid data
t
33
t
41
DIR1284
(output)
t
34
BUSY
(input)
33
Data Sheet U14388EJ2V0DS00
NEC [ NEC ]
