参数资料
型号: 37C669
厂商: 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: 电脑98/99顺从超级I / O软盘控制器与红外线支持
文件页数: 67/164页
文件大小: 621K
代理商: 37C669
159
FIGURE 20 - ECP PARALLEL PORT FORWARD TIMING
Parameter
min
max
u nits
t1
t2
t3
t4
t5
t6
t7
t8
n AUTOFD Va lid to nSTROBE Asserted
PDATA Va lid t o nSTROBE Asserted
BUSY Deasserted to nAUTOFD
Cha nged
n BU SY Deasser ted to PDATA Cha nged
nSTROBE Asserted to BUSY Asserted
nSTR OBE Dea sse rted to Bu sy
De asserted
nBUSY Deasser te d to n STROBE
Asserted
nBUSY Asserted to nSTR OBE
De asserted
0
80
0
80
n s
60
180
200
180
Notes
1 ,2
2
1 . Maximum valu e only ap plie s if there is da ta i n th e FIFO waitin g to b e writte n out.
2. BUSY is no t consi dered asserted or de asserted u ntil it is stable for a min imum of 7 5 to
1 30 ns.
t3
t4
t1
t2
t7
t8
t6
t5
t6
nAUTOFD
PD ATA<7:0>
nS TROBE
BU SY
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