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AT89C5132-ROTIL Folha de dados(PDF) 172 Page - ATMEL Corporation

Nome de Peças AT89C5132-ROTIL
Descrição Electrónicos  USB Microcontroller with 64K Bytes Flash Memory
PDF  181 Pages
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Fabricante Electrônico  ATMEL [ATMEL Corporation]
Página de início  http://www.atmel.com
Logo ATMEL - ATMEL Corporation

AT89C5132-ROTIL Folha de dados(HTML) 172 Page - ATMEL Corporation

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4173D–USB–02/06
AT89C5132
24.2.8
Flash Memory
24.2.8.1
Definition of Symbols
Table 121. Flash Memory Timing Symbol Definitions
24.2.8.2
Timings
Table 122. Flash Memory AC Timing
V
DD = 2.7 to 3.3V, TA = -40° to +85°C
24.2.8.3
Waveforms
Figure 24-21. Flash Memory – ISP Waveforms
Note:
1. ISP must be driven through a pull-down resistor (see Section “In-system Programming”,
page 158).
Figure 24-22. Flash Memory – Internal Busy Waveforms
24.2.9
External Clock Drive and Logic Level References
24.2.9.1
Definition of Symbols
Table 123. External Clock Timing Symbol Definitions
Signals
Conditions
SISP
L
Low
R
RST
V
Valid
B
FBUSY flag
X
No Longer Valid
Symbol
Parameter
Min
Typ
Max
Unit
T
SVRL
Input ISP Valid to RST Edge
50
ns
T
RLSX
Input ISP Hold after RST Edge
50
ns
T
BHBL
FLASH Internal Busy (Programming) Time
10
ms
N
FCY
Number of Flash Write Cycles
100K
Cycle
T
FDR
Flash Data Retention Time
10
Year
RST
T
SVRL
ISP(1)
T
RLSX
FBUSY bit
T
BHBL
Signals
Conditions
CClock
HHigh
L
Low
X
No Longer Valid



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