XR16C872 Ver la hoja de datos (PDF) - Exar Corporation
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Lista de partido
XR16C872 Datasheet PDF : 60 Pages
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Preliminary
XR16C872
1284 CONTROLLER AC ELECTRICAL CHARACTERISTICS
T =0° - 70°C (-40° - +85°C for Industrial grade packages), Vcc=3.3 - 5.0 V ± 10% unless otherwise
A
specified.
Symbol
Parameter
T20
PD7-PD0, STROBE#, AUTOFD#, INIT,
SLCTIN# delay from IOW# inactive
T21
Interrupt delay from ACK#
T22
Interrupt pre-charge pulse at release
T23
TC pulse width
T24
TC active to DRQx inactive
T25
DRQx active to DACKx# active
T26
DRQx inactive delay from DACKx#
active
T27
PD7-PD0 setup to STROBE# active
T28
STROBE# width
T29
PD7-PD0 hold from STROBE# inactive
T30
PD7-PD0 hold from BUSY inactive
T31
STROBE# active to BUSY active
(handshake)
T32
BUSY inactive to STROBE# active
(cycle delay)
T33
PD7-PD0, AUTOFD# setup to STROBE#
active
T34
PD7-PD0, AUTOFD# hold from BUSY
active
T35
STROBE# inactive to BUSY inactive
T36
BUSY inactive to #STROBE active
T37
#STROBE active to BUSY active
T38
BUSY active to #STROBE inactive
T39
PD7-PD0, BUSY setup to ACK# active
T40
PD7-PD0 data hold from AUTOFD#
active
T41
ACK# inactive to AUTOFD# active
T42
AUTOFD# active to ACK# active
T43
ACK# active to AUTOFD# inactive
T44
AUTOFD# inactive to ACK# inactive
T45
Host address setup to IOW# active
T46
Host address hold from IOW# active
T47
Host data setup to IOW# active
T48
Host data hold from IOW# active
T49
IOW# active to IOCHRDY low
T50
IOCHRDY high to Host terminate
(IOW# inactive)
Limits
3.3
Min Max
Limits
5.0
Min Max
Units
100 ns
60
ns
10
ns
60
ns
100 ns
0
ns
100 ns
600
ns
600
ns
450
ns
80
ns
500 ns
680
ns
0
60
ns
80
180 ns
0
ns
80
200 ns
0
ns
80
180 ns
0
ns
0
ns
80
200 ns
0
ns
80
200 ns
0
ns
40
ns
10
ns
0
20
ns
0
ns
0
20
ns
10
ns
Conditions
Rev. P1.00
11
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