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ATAM862 bảng dữ liệu(PDF) 103 Page - ATMEL Corporation

tên linh kiện ATAM862
Giải thích chi tiết về linh kiện  Microcontroller with UHF ASK/FSK Transmitter
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nhà sản xuất  ATMEL [ATMEL Corporation]
Trang chủ  http://www.atmel.com
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ATAM862 bảng dữ liệu(HTML) 103 Page - ATMEL Corporation

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103
4554E–4BMCU–05/06
ATAM862-3
29. Crystal Characteristics
Figure 29-1. Crystal Equivalent Circuit
32-kHz Crystal Oscillator (Operating Range VDD = 2.0 V to 4.0 V)
Frequency
fX
32.768
kHz
Start-up time
tSQ
0.5
s
Stability
∆f/f
-10
10
ppm
Integrated input/output capacitances
(configurable)
C
IN/COUT programmable
CIN
C
OUT
0, 2, 5, 7, 10 or 12
0, 2, 5, 7, 10 or 12
pF
pF
External 32-kHz Crystal Parameters
Crystal frequency
f
X
32.768
kHz
Serial resistance
RS
30
50
k
Ω
Static capacitance
C
0
1.5
pF
Dynamic capacitance
C1
3
fF
External 4-MHz Crystal Parameters
Crystal frequency
f
X
4.0
MHz
Serial resistance
RS
40
150
W
Static capacitance
C
0
1.4
3
pF
Dynamic capacitance
C1
3
fF
EEPROM
Operating current during erase/write
cycle
IWR
600
1300
µA
Endurance
Erase-/write cycles
Tamb = 125° C
ED
ED
500000
10000
1000000
20000
Cycles
Cycles
Data erase/write cycle time
For 16-bit access
tDEW
913
ms
Data retention time
Tamb = 125° C
tDR
t
DR
100
1
Years
Years
Power-up to read operation
t
PUR
0.2
ms
Power-up to write operation
t
PUW
0.2
ms
Program EEPROM
Erase-/write cycles, T
amb = 0 to 40° CnEW
100
1000
Cycles
Serial Interface
SCL clock frequency
f
SC_MCL
100
500
kHz
28. AC Characteristics (Continued)
Supply voltage V
DD = 1.8 to 4.0 V, VSS = 0 V, Tamb = 25° C unless otherwise specified.
Parameters
Test Conditions
Symbol
Min.
Typ.
Max.
Unit
L
C1
RS
C0
OSCIN
OSCOUT
Equivalent
circuit
SCLIN
SCLOUT



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