T89C51RD2-3CSCL ATMEL [ATMEL Corporation], T89C51RD2-3CSCL Datasheet - Page 86
T89C51RD2-3CSCL
Manufacturer Part Number
T89C51RD2-3CSCL
Description
0 to 40 MHz Flash Programmable 8-bit Microcontroller
Manufacturer
ATMEL [ATMEL Corporation]
Datasheet
1.T89C51RD2-3CSCL.pdf
(104 pages)
- Current page: 86 of 104
- Download datasheet (2Mb)
External Program Memory
Characteristics
Table 46. AC Parameters for a Fix Clock
86
T89C51RD2
Symbol
T
T
T
T
T
T
T
T
T
T
T
PLPH
LHLL
AVLL
LLAX
LLPL
PLAZ
PLIV
PXIX
PXIZ
AVIV
LLIV
T
Min
25
40
10
10
15
55
0
Symbol
T
T
T
T
T
T
T
T
T
T
T
PLPH
LHLL
AVLL
LLAX
LLPL
PLAZ
PLIV
PXIX
PXIZ
AVIV
LLIV
T
-M
Parameter
Oscillator clock period
ALE pulse width
Address Valid to ALE
Address Hold After ALE
ALE to Valid Instruction In
ALE to PSEN
PSEN Pulse Width
PSEN to Valid Instruction In
Input Instruction Hold After PSEN
Input Instruction Float After PSEN
Address to Valid Instruction In
PSEN Low to Address Float
Max
70
35
18
85
10
Min
25
40
10
10
15
55
0
-L
Max
70
35
18
85
10
Units
4243G–8051–05/03
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
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