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PC87309VLJ bảng dữ liệu(PDF) 186 Page - National Semiconductor (TI)

[Old version datasheet] Texas Instruments acquired National semiconductor.
tên linh kiện PC87309VLJ
Giải thích chi tiết về linh kiện  PC87309 SuperI/O Plug and Play Compatible Chip in Compact 100-Pin VLJ Packaging
PDF  192 Pages
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nhà sản xuất  NSC [National Semiconductor (TI)]
Trang chủ  http://www.national.com
Logo NSC - National Semiconductor (TI)

PC87309VLJ bảng dữ liệu(HTML) 186 Page - National Semiconductor (TI)

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Device Specifications
186
www.national.com
10.3.18 Enhanced Parallel Port 1.7 Timing
1. The PC87309 design guarantees that WRITE will not change from low to high before DSTRB, or
ASTRB, goes from low to high.
2. D7-0 is stable 15 nsec before WR becomes active.
Symbol
Parameter
Min
Max
Unit
tWW17
WRITE Active or Inactive from WR Active or Inactive
45
nsec
tWST17
DSTRB or ASTRB Active or Inactive from WR or RD Active or Inactive1
45
nsec
tWEST17
DSTRB or ASTRB Active after WRITE Becomes Active
0
nsec
tWPD17h
PD7-0 Hold after WRITE Becomes Inactive
50
nsec
tHRW17
IOCHRDY Active or Inactive after WAIT Becomes Active or Inactive
40
nsec
tWPDS17
PD7-0 Valid after WRITE Becomes Active2
15
nsec
tEPDW17
PD7-0 Valid Width
80
nsec
tEPD17h
PD7-0 Hold after DSTRB or ASTRB Becomes Inactive
0
nsec
tZWS17a
ZWS Valid after WR or RD Active
45
nsec
tZWS17h
ZWS Hold after WR or RD Inactive
0
nsec
tWW17
WR
RD
D7-0
WRITE
DSTRB
ASTRB
PD7-0
WAIT
IOCHRDY
Valid
Valid
tWEST17
tWST17
tWPDS17
tHRW17
tHRW17
tWST17
tWW17
tWST17
tWPD17h
tWST17
tEPD17h
tEPDW17
or
tHRW17
tZWS17a
tZWS17h
tZWS17a
tZWS17h
ZWS



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