参数资料
型号: EFM32GG980F512
厂商: Energy Micro
文件页数: 15/73页
文件大小: 0K
描述: IC MCU 32BIT 512KB FLASH LQFP100
标准包装: 1,000
系列: Giant Gecko
核心处理器: ARM? Cortex?-M3
芯体尺寸: 32-位
速度: 48MHz
连通性: EBI/EMI,I²C,IrDA,智能卡,SPI,UART/USART,USB
外围设备: 欠压检测/复位,DMA,LCD,POR,PWM,WDT
输入/输出数: 83
程序存储器容量: 512KB(512K x 8)
程序存储器类型: 闪存
RAM 容量: 128K x 8
电压 - 电源 (Vcc/Vdd): 1.85 V ~ 3.8 V
数据转换器: A/D 8x12b,D/A 2x12b
振荡器型: 外部
工作温度: -40°C ~ 85°C
封装/外壳: 100-LQFP
包装: 带卷 (TR)
Preliminary
...the world's most energy friendly microcontrollers
2013-06-28 - EFM32GG980FXX - d0045_Rev1.10
22
www.energymicro.com
3.9 Oscillators
3.9.1 LFXO
Table 3.9. LFXO
Symbol
Parameter
Condition
Min
Typ
Max
Unit
fLFXO
Supported nominal crystal
frequency
32.768
kHz
ESRLFXO
Supported crystal equiv-
alent series resistance
(ESR)
30
120
kOhm
CLFXOL
Supported crystal external
load range
X
1
25
pF
DCLFXO
Duty cycle
48
50
53.5
%
ILFXO
Current consumption for
core and buffer after start-
up.
ESR=30 kOhm, CL=10 pF,
LFXOBOOST in CMU_CTRL
is 1
190
nA
tLFXO
Start- up time.
ESR=30 kOhm, CL=10 pF,
40% - 60% duty cycle has
been reached, LFXOBOOST
in CMU_CTRL is 1
400
ms
1See Minimum Load Capacitance (C
LFXOL) Requirement For Safe Crystal Startup in energyAware Designer in Simplicity Studio
For safe startup of a given crystal, the energyAware Designer in Simplicity Studio contains a tool to help
users configure both load capacitance and software settings for using the LFXO. For details regarding
the crystal configuration, the reader is referred to application note "AN0016 EFM32 Oscillator Design
Consideration".
3.9.2 HFXO
Table 3.10. HFXO
Symbol
Parameter
Condition
Min
Typ
Max
Unit
fHFXO
Supported nominal crystal
Frequency
4
48
MHz
Crystal frequency 32 MHz
30
60
Ohm
ESRHFXO
Supported crystal equiv-
alent series resistance
(ESR)
Crystal frequency 4 MHz
400
1500
Ohm
gmHFXO
The transconductance of
the HFXO input transistor
at crystal startup
HFXOBOOST in CMU_CTRL
equals 0b11
20
mS
CHFXOL
Supported crystal external
load range
5
25
pF
DCHFXO
Duty cycle
46
50
54
%
4 MHz: ESR=400 Ohm,
CL=20 pF, HFXOBOOST in
CMU_CTRL equals 0b11
85
A
IHFXO
Current consumption for
HFXO after startup
32 MHz: ESR=30 Ohm,
CL=10 pF, HFXOBOOST in
CMU_CTRL equals 0b11
165
A
tHFXO
Startup time
32 MHz: ESR=30 Ohm,
CL=10 pF, HFXOBOOST in
CMU_CTRL equals 0b11
400
s
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