EFM32LG995F256 Energy Micro, EFM32LG995F256 Datasheet - Page 24

• Manufacturer Part Number: EFM32LG995F256
• Description: ARM Microcontrollers - MCU 256KB FL 32KB RAM
• Manufacturer: Energy Micro

Specifications of EFM32LG995F256

• Rohs: yes
• Core: ARM Cortex M3
• Processor Series: Leopard Gecko (LG)
• Data Bus Width: 32 bit
• Maximum Clock Frequency: 48 MHz
• Program Memory Size: 256 KB
• Data Ram Size: 32 KB
• On-chip Adc: Yes
• Operating Supply Voltage: 1.85 V to 3.8 V
• Operating Temperature Range: - 40 C to + 85 C
• Package / Case: BGA-120
• Mounting Style: SMD/SMT
• A/d Bit Size: 12 bit
• Interface Type: I2C, SPI, USB, UART
• Number Of Programmable I/os: 93
• Program Memory Type: Flash

3.9.4 HFRCO
2012-09-11 - EFM32LG995FXX - d0124_Rev1.00
Figure 3.8. Calibrated LFRCO Frequency vs Temperature and Supply Voltage
Table 3.13. HFRCO
1
2
7 MHz for devices with prod. rev. < 19.
1 MHz for devices with prod. rev. < 19.
Symbol
f
t
I
DC
TUNESTEP
FRCO
HFRCO
HFRCO_settling
HFRCO
HFRCO
40
42
38
36
34
32
30
1.8
H-
2.2
Parameter
Oscillation frequency, V
3.0 V, T
Settling time after start-up
Current consumption
Duty cycle
Frequency step for LSB
change in TUNING value
AMB
2.6
=25°C
Vdd [ V]
3.0
Preliminary
DD
=
3.4
Condition
28 MHz frequency band
21 MHz frequency band
14 MHz frequency band
11 MHz frequency band
7 MHz frequency band
1 MHz frequency band
f
f
f
f
f
f
f
f
HFRCO
HFRCO
HFRCO
HFRCO
HFRCO
HFRCO
HFRCO
HFRCO
-40° C
25° C
85° C
3.8
= 14 MHz
= 28 MHz
= 21 MHz
= 14 MHz
= 11 MHz
= 6.6 MHz
= 1.2 MHz
= 14 MHz
...the world's most energy friendly microcontrollers
24
42
40
38
36
34
30
32
–40
–15
Min
48.5
5
Tem perat ure [ ° C]
Typ
25
www.energymicro.com
6.6
1.2
106
0.6
0.3
28
21
14
11
93
77
72
63
22
50
1
2
45
Max
65
51 %
1.8 V
3 V
3.8 V
Unit
MHz
MHz
MHz
MHz
MHz
MHz
Cycles
µA
µA
µA
µA
µA
µA
%
85