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T89C51RD2-RDTIM 数据表(PDF) 88 Page - ATMEL Corporation

部件名 T89C51RD2-RDTIM
功能描述  0 to 40 MHz Flash Programmable 8-bit Microcontroller
PDF  104 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

T89C51RD2-RDTIM 数据表(HTML) 88 Page - ATMEL Corporation

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T89C51RD2
4243G–8051–05/03
External Data Memory
Characteristics
Table 48. Symbol Description
Symbol
Parameter
T
RLRH
RD Pulse Width
T
WLWH
WR Pulse Width
T
RLDV
RD to Valid Data In
T
RHDX
Data Hold After RD
T
RHDZ
Data Float After RD
T
LLDV
ALE to Valid Data In
T
AVDV
Address to Valid Data In
T
LLWL
ALE to WR or RD
T
AVWL
Address to WR or RD
T
QVWX
Data Valid to WR Transition
T
QVWH
Data set-up to WR High
T
WHQX
Data Hold After WR
T
RLAZ
RD Low to Address Float
T
WHLH
RD or WR High to ALE high
Table 49. AC Parameters for a Fix Clock
Symbol
-M
-L
Units
MinMax
MinMax
TRLRH
130
130
ns
TWLWH
130
130
ns
TRLDV
100
100
ns
TRHDX
00
ns
TRHDZ
30
30
ns
TLLDV
160
160
ns
TAVDV
165
165
ns
TLLWL
50
100
50
100
ns
TAVWL
75
75
ns
TQVWX
10
10
ns
TQVWH
160
160
ns
TWHQX
15
15
ns
TRLAZ
00
ns
TWHLH
10
40
10
40
ns



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