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AT89C5131A-L(2004) 데이터 시트보기 (PDF) - Atmel Corporation
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AT89C5131A-L
(Rev.:2004)
8-bit Flash Microcontroller with Full Speed USB Device
Atmel Corporation
AT89C5131A-L Datasheet PDF : 34 Pages
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External Program Memory Read Cycle
ALE
PSEN
PORT 0 INSTR IN
T
LHLL
T
LLAX
T
AVLL
A0-A7
T
LLIV
T
LLPL
T
PLPH
12 T
CLCL
T
PLIV
TPLAZ
T
PXIX
INSTR IN
T
PXAV
T
PXIZ
A0-A7
PORT 2
ADDRESS
OR SFR-P2
T
AVIV
ADDRESS A8-A15
INSTR IN
ADDRESS A8-A15
External Data Memory
Characteristics
Table 17.
Symbol Description
Symbol
T
RLRH
T
WLWH
T
RLDV
T
RHDX
T
RHDZ
T
LLDV
T
AVDV
T
LLWL
T
AVWL
T
QVWX
T
QVWH
T
WHQX
T
RLAZ
T
WHLH
Parameter
RD Pulse Width
WR Pulse Width
RD to Valid Data In
Data Hold After RD
Data Float After RD
ALE to Valid Data In
Address to Valid Data In
ALE to WR or RD
Address to WR or RD
Data Valid to WR Transition
Data set-up to WR High
Data Hold After WR
RD Low to Address Float
RD or WR High to ALE high
20
AT89C5131A-L
4338A–USB–08/04
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