參數(shù)資料
型號: 37C669
廠商: SMSC Corporation
英文描述: DIODE SCHOTTKY SINGLE 25V 200mW 0.5V-vf 200mA-IFM 30mA-IF 2uA-IR SOD-323 3K/REEL
中文描述: 電腦98/99順從超級I / O軟盤控制器與紅外線支持
文件頁數(shù): 60/164頁
文件大小: 621K
代理商: 37C669
152
FIGURE 15 - EPP 1.9 DATA OR ADDRESS WRITE CYCLE
t 18
t9
t8
t 17
t 12
t 19
t 10
t 11
t 13
t 20
t2
t1
t5
t3
t 14
t 16
t4
t6
t 15
t7
AX
SD<7:0>
n IOW
IO CH RDY
n WR ITE
PD<7: 0>
n DATAST
nADDRSTB
nWAIT
t1
t2
t3
t4
t5
t6
t7
t8
t9
t 10
t 11
t 12
t 13
t 14
t 15
t 16
t 17
t 18
t 19
t 20
n IOW Ass erted t o PDATA Valid
n WAIT As se rt ed to nWRITE Chan ge
n WR ITE to Comman d As sert ed
nWAI T Dea ss erted to Co mmand Deasserted
nWAI T Asserted t o PD ATA Inv alid
Time O ut
Comma nd D easserted to nWAIT Asserted
SDATA Valid to IOW As se rt ed
nIOW Deasserted to DATA Inv alid
n IOW Ass erted t o IOC HRDY As se rt ed
WAI T Dea ss er te d to nI OCH RDY Deas se rt ed
I OCH RDY Deassert ed to nIOW De as sert ed
n IOW Asserted to nW RITE As se rt ed
nWAIT As se rt ed to Comman d As se rt ed
Comma nd Asserted to n WAIT Deas sert ed
PDATA Valid to Comman d As se rt ed
Ax Valid t o nIO W As se rt ed
n IOW De as ser te d to Ax Inv alid
n IOW Deasserted to nIOW or nIOR Asserted
nWA IT Ass er te d t o nWR ITE Ass erted
ns
s
ns
s
ns
50
1 85
35
1 90
12
24
1 60
70
2 10
10
1 85
Parameter
min
max
units
0
60
5
60
0
10
0
10
0
60
10
0
60
0
10
40
10
40
60
N ot es
1
1 .
WAIT must be filt er ed to compe ns at e f or ringing o n the paralle l bus ca ble. WAIT is co nsidered to have settled aft er it
d oe s not t ra nsition fo r a minimum of 5 0 ns ec.
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