參數(shù)資料
型號(hào)： XR16C872
廠商： Exar Corporation
英文描述： Dual UART with 1284 Parallel Port and Plug-and-Play（PnP） Controller(雙通用異步接收器/發(fā)送器（帶1284雙向并行端口和即插即用控制器）)
中文描述： 雙UART）與1284并行端口，插頭插即用（PnP）功能控制器（雙通用異步接收器/發(fā)送器（帶1284雙向并行端口和即插即用控制器）
文件頁數(shù)： 11/60頁
文件大?。?/td> 314K
代理商： XR16C872
XR16C872
11
Rev. P1.00
Preliminary
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
specified.
Symbol
Parameter
Limits
3.3
Min
Limits
5.0
Min
Units
Conditions
Max
Max
T20
PD7-PD0, STROBE#, AUTOFD#, INIT,
SLCTIN# delay from IOW# inactive
Interrupt delay from ACK#
Interrupt pre-charge pulse at release
TC pulse width
TC active to DRQx inactive
DRQx active to DACKx# active
DRQx inactive delay from DACKx#
active
PD7-PD0 setup to STROBE# active
STROBE# width
PD7-PD0 hold from STROBE# inactive
PD7-PD0 hold from BUSY inactive
STROBE# active to BUSY active
(handshake)
BUSY inactive to STROBE# active
(cycle delay)
PD7-PD0, AUTOFD# setup to STROBE#
active
PD7-PD0, AUTOFD# hold from BUSY
active
STROBE# inactive to BUSY inactive
BUSY inactive to #STROBE active
#STROBE active to BUSY active
BUSY active to #STROBE inactive
PD7-PD0, BUSY setup to ACK# active
PD7-PD0 data hold from AUTOFD#
active
ACK# inactive to AUTOFD# active
AUTOFD# active to ACK# active
ACK# active to AUTOFD# inactive
AUTOFD# inactive to ACK# inactive
Host address setup to IOW# active
Host address hold from IOW# active
Host data setup to IOW# active
Host data hold from IOW# active
IOW# active to IOCHRDY low
IOCHRDY high to Host terminate
(IOW# inactive)
100
ns
T21
T22
T23
T24
T25
T26
60
10
ns
ns
ns
ns
ns
ns
60
100
0
100
T27
T28
T29
T30
T31
600
600
450
80
ns
ns
ns
ns
ns
500
T32
680
ns
T33
0
60
ns
T34
80
180
ns
T35
T36
T37
T38
T39
T40
0
ns
ns
ns
ns
ns
ns
80
0
80
0
0
200
180
T41
T42
T43
T44
T45
T46
T47
T48
T49
T50
80
0
80
0
40
10
0
0
0
10
200
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
200
20
20
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PDF描述
XR16L2450 2.25V TO 5.5V DUART
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XR16L2450IM 2.25V TO 5.5V DUART
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
XR16C872CQ 制造商:EXAR 制造商全稱:EXAR 功能描述:DUAL UART WITH 1284 PARALLEL PORT AND PLUG-AND-PLAY CONTROLLER
XR16C872IQ 制造商:EXAR 制造商全稱:EXAR 功能描述:DUAL UART WITH 1284 PARALLEL PORT AND PLUG-AND-PLAY CONTROLLER
XR16L2450 制造商:EXAR 制造商全稱:EXAR 功能描述:2.25V TO 5.5V DUART
XR16L2450_05 制造商:EXAR 制造商全稱:EXAR 功能描述:2.25V TO 5.5V DUART
XR16L2450IJ 制造商:EXAR 制造商全稱:EXAR 功能描述:2.25V TO 5.5V DUART
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