SAM4L Datasheet, PDF (1131/1185 Pages) ATMEL Corporation – ATSAM ARM-based Flash MCU

ATSAM4L4/L2
42.6.9 80MHz RC Oscillator (RC80M) Characteristics
Table 42-29. Internal 80MHz RC Oscillator Characteristics
Symbol
f_OUT
I_RC80M
t_STARTUP
Duty
Parameter
Output frequency ⁽¹⁾
Current consumption ⁽²⁾
Startup time⁽¹⁾
Duty cycle⁽²⁾
Conditions
After calibration
Min
Typ
Max
60
80
100
330
0.57
1.72
3.2
45
50
55
1.
These values are based on characterization. These values are not covered by test limits in production.
2.
These values are based on simulation. These values are not covered by test limits in production or characterization.
Unit
MHz
µA
µs
%
42.7
Flash Characteristics
Table 42-30 gives the device maximum operating frequency depending on the number of flash
wait states and the flash read mode. The FWS bit in the FLASHCALW FCR register controls the
number of wait states used when accessing the flash memory.
Table 42-30. Maximum Operating Frequency ⁽¹⁾
PowerScaling Mode
0
1
2
Flash Read Mode
Low power (HSDIS) +
Flash internal reference:
BPM.PMCON.FASTWKUP=1
Low power(HSDIS)
Low power (HSDIS) +
Flash internal reference:
BPM.PMCON.FASTWKUP=1
Low power (HSDIS)
High speed (HSEN)
Flash Wait
States
1
0
1
1
0
1
0
1
Maximum Operating
Frequency
12
18
36
12
8
12
24
48
Unit
MHz
1.
These values are based on simulation. These values are not covered by test limits in production or characterization.
Table 42-31. Flash Characteristics ⁽¹⁾
Symbol
Parameter
Conditions
Min
Typ
Max
Unit
t_FPP
Page programming time
4.38
t_FPE
Page erase time
t_FFP
Fuse programming time
f_{CLK_AHB} = 48MHz
4.38
0.63
ms
t_FEA
Full chip erase time (EA)
5.66
t_FCE
JTAG chip erase time (CHIP_ERASE)
f_{CLK_AHB} = 115kHz
304
42023C–SAM–02/2013
1131