SAM4L_14 Datasheet, PDF (127/176 Pages) ATMEL Corporation – Technology for Ultra-low Power Consumption

ATSAM4L8/L4/L2
9.7.9 80MHz RC Oscillator (RC80M) Characteristics
Table 9-32. Internal 80MHz RC Oscillator Characteristics
Symbol
Parameter
Conditions
Min
Typ
Max
f_OUT
I_RC80M
t_STARTUP
Duty
Output frequency ⁽¹⁾
Current consumption ⁽²⁾
Startup time⁽¹⁾
Duty cycle⁽²⁾
After calibration
60
Note that RC80M is not available in PS1
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
%
9.8 Flash Characteristics
Table 9-33 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 9-33. Maximum Operating Frequency ⁽¹⁾
PowerScaling Mode
0
1
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)
2
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 9-34. Flash Characteristics ⁽¹⁾
Symbol
Parameter
Conditions
Min
t_FPP
Page programming time
t_FPE
Page erase time
t_FFP
Fuse programming time
f_{CLK_AHB} = 48MHz
t_FEA
Full chip erase time (EA)
t_FCE
JTAG chip erase time (CHIP_ERASE)
f_{CLK_AHB} = 115kHz
42023GS–SAM–03/2014
Typ
4.38
4.38
0.63
5.66
304
Max
Unit
ms
127