Datasheet

54
32099IS–01/2012
AT32UC3L016/32/64
7.6.5 32kHz RC Oscillator (RC32K) Characteristics
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.
7.6.6 System RC Oscillator (RCSYS) Characteristics
7.7 Flash Characteristics
Table 7-18 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 7-16. 32kHz RC Oscillator Characteristics
Symbol Parameter Conditions Min Typ Max Unit
f
OUT
Output frequency
(1)
20 32 44 kHz
I
RC32K
Current consumption 0.6 µA
t
STARTUP
Startup time 100 µs
Table 7-17. System RC Oscillator Characteristics
Symbol Parameter Conditions Min Typ Max Unit
f
OUT
Output frequency Calibrated at 85°C 111.6 115 118.4 kHz
Table 7-18. Maximum Operating Frequency
Flash Wait States Read Mode Maximum Operating Frequency
1
High speed read mode
50MHz
0 25MHz
1
Normal read mode
30MHz
0 15MHz
Table 7-19. Flash Characteristics
Symbol Parameter Conditions Min Typ Max Unit
t
FPP
Page programming time
f
CLK_HSB
= 50MHz
5
ms
t
FPE
Page erase time 5
t
FFP
Fuse programming time 1
t
FEA
Full chip erase time (EA) 5
t
FCE
JTAG chip erase time (CHIP_ERASE) f
CLK_HSB
= 115kHz 170