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T89C51RD2-3CWC-L Datasheet(PDF) 77 Page - ATMEL Corporation

Part # T89C51RD2-3CWC-L
Description  0 to 40MHz Flash Programmable 8-bit Microcontroller
PDF  86 Pages
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Manufacturer  ATMEL [ATMEL Corporation]
Direct Link  http://www.atmel.com
Logo ATMEL - ATMEL Corporation

T89C51RD2-3CWC-L Datasheet(HTML) 77 Page - ATMEL Corporation

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77
Rev. F - 15 February, 2001
T89C51RD2
9.5.3. External Program Memory Read Cycle
Table 40. AC Parameters for a Variable Clock
Symbol
Type
Standard
Clock
X2 Clock
X parameter
for -M range
X parameter
for -L range
Units
TLHLL
Min
2 T - x
T - x
10
10
ns
TAVLL
Min
T - x
0.5 T - x
15
15
ns
TLLAX
Min
T - x
0.5 T - x
15
15
ns
TLLIV
Max
4 T - x
2 T - x
30
30
ns
TLLPL
Min
T - x
0.5 T - x
10
10
ns
TPLPH
Min
3 T - x
1.5 T - x
20
20
ns
TPLIV
Max
3 T - x
1.5 T - x
40
40
ns
TPXIX
Min
x
x
0
0
ns
TPXIZ
Max
T - x
0.5 T - x
7
7
ns
TAVIV
Max
5 T - x
2.5 T - x
40
40
ns
TPLAZ
Max
x
x
10
10
ns
TPLIV
TPLAZ
ALE
PSEN
PORT 0
PORT 2
A0-A7
A0-A7
INSTR IN
INSTR IN
INSTR IN
ADDRESS
OR SFR-P2
ADDRESS A8-A15
ADDRESS A8-A15
12 TCLCL
TAVIV
TLHLL
TAVLL
TLLIV
TLLPL
TPLPH
TPXAV
TPXIX
TPXIZ
TLLAX



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