ATUC128L3U_14 Datasheet, PDF (910/963 Pages) ATMEL Corporation – High-performance, Low-power 32-bit Atmel

ATUC64/128/256L3/4U
35.6.6 32kHz RC Oscillator (RC32K) Characteristics
Table 35-16. 32kHz RC Oscillator Characteristics
Symbol
f_OUT
I_RC32K
t_STARTUP
Parameter
Output frequency⁽¹⁾
Current consumption
Startup time⁽¹⁾
Conditions
Min
Typ
Max
Unit
20
32
44
kHz
0.7
µA
100
µs
Note: 1. These values are based on simulation and characterization of other AVR microcontrollers manufactured in the same pro-
cess technology. These values are not covered by test limits in production.
35.6.7 System RC Oscillator (RCSYS) Characteristics
Table 35-17. System RC Oscillator Characteristics
Symbol
Parameter
Conditions
f_OUT
Output frequency
Calibrated at 85C
Min
111.6
Typ
Max
Unit
115
118.4
kHz
35.7
Flash Characteristics
Table 35-18 gives the device maximum operating frequency depending on the number of flash
wait states and the flash read mode. The FSW bit in the FLASHCDW FSR register controls the
number of wait states used when accessing the flash memory.
Table 35-18. Maximum Operating Frequency
Flash Wait States
Read Mode
1
High speed read mode
0
1
Normal read mode
0
Maximum Operating Frequency
50 MHz
25 MHz
30 MHz
15 MHz
Table 35-19. Flash Characteristics
Symbol
Parameter
Conditions
Min
Typ
Max
Unit
t_FPP
Page programming time
5
t_FPE
Page erase time
t_FFP
Fuse programming time
f_{CLK_HSB} = 50MHz
5
1
ms
t_FEA
Full chip erase time (EA)
6
t_FCE
JTAG chip erase time (CHIP_ERASE)
f_{CLK_HSB} = 115kHz
310
32142D–06/2013
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