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AT89C51AC3-RDTUM 数据表(PDF) 127 Page - ATMEL Corporation

部件名 AT89C51AC3-RDTUM
功能描述  Enhanced 8-bit Microcontroller with 64KB Flash Memory
PDF  143 Pages
Scroll/Zoom Zoom In 100%  Zoom Out
制造商  ATMEL [ATMEL Corporation]
网页  http://www.atmel.com
标志 ATMEL - ATMEL Corporation

AT89C51AC3-RDTUM 数据表(HTML) 127 Page - ATMEL Corporation

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AT89C51AC3
4383B–8051–01/05
External Data Memory
Characteristics
Table 76. Symbol Description
Table 77. AC Parameters for a Variable Clock (F=40MHz)
Symbol
Parameter
TRLRH
RD Pulse Width
TWLWH
WR Pulse Width
TRLDV
RD to Valid Data In
TRHDX
Data Hold After RD
TRHDZ
Data Float After RD
TLLDV
ALE to Valid Data In
TAVDV
Address to Valid Data In
TLLWL
ALE to WR or RD
TAVWL
Address to WR or RD
TQVWX
Data Valid to WR Transition
TQVWH
Data set-up to WR High
TWHQX
Data Hold After WR
TRLAZ
RD Low to Address Float
TWHLH
RD or WR High to ALE high
Symbol
Min
Max
Units
TRLRH
130
ns
TWLWH
130
ns
TRLDV
100
ns
TRHDX
0ns
TRHDZ
30
ns
TLLDV
160
ns
TAVDV
165
ns
TLLWL
50
100
ns
TAVWL
75
ns
TQVWX
10
ns
TQVWH
160
ns
TWHQX
15
ns
TRLAZ
0ns
TWHLH
10
40
ns



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