xr16c872iq Exar Corporation, xr16c872iq Datasheet - Page 49
xr16c872iq
Manufacturer Part Number
xr16c872iq
Description
Dual Uart With 1284 Parallel Port And Plug-and-play Controller
Manufacturer
Exar Corporation
Datasheet
1.XR16C872IQ.pdf
(60 pages)
- Current page: 49 of 60
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1284 Controller AC Electrical Characteristics (continue)
Symbol
Rev. 1.00
T51
T52
T53
T54
T55
T56
T57
T58
T59
IOW# inactive to Host command active
(IOW# or IOR#)
IOCHRDY pre-charge width at release
Host address setup to IOR# active
Host address hold from IOR# active
Host data setup to IOR# inactive
Host data hold from IOR# inactive
IOR# active to IOCHRDY low
IOCHRDY high to Host terminate
(IOR# inactive)
IOR# inactive to Host command active
(IOW# or IOR#)
Parameter
DISCONTINUED
49
Min
Limits
3.3
Max
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Min
40
40
10
40
10
0
0
0
Limits
5.0
Max
10
20
20
XR16C872
Units
ns
ns
ns
ns
ns
ns
ns
ns
ns
Conditions
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