参数资料
型号: EFM32LG280F256
厂商: Energy Micro
文件页数: 5/69页
文件大小: 0K
描述: IC MCU 32BIT 256KB FLASH QFP100
标准包装: 1,000
系列: Leopard Gecko
核心处理器: ARM? Cortex?-M4
芯体尺寸: 32-位
速度: 48MHz
连通性: EBI/EMI,I²C,IrDA,智能卡,SPI,UART/USART
外围设备: 欠压检测/复位,DMA,POR,PWM,WDT
输入/输出数: 86
程序存储器容量: 256KB(256K x 8)
程序存储器类型: 闪存
RAM 容量: 32K 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 - EFM32LG280FXX - d0107_Rev1.10
13
www.energymicro.com
3.5 Transition between Energy Modes
Table 3.5. Energy Modes Transitions
Symbol
Parameter
Min
Typ
Max
Unit
tEM10
Transition time from EM1 to EM0
0
1
HF
core
CLK
cycles
tEM20
Transition time from EM2 to EM0
2
s
tEM30
Transition time from EM3 to EM0
2
s
tEM40
Transition time from EM4 to EM0
163
s
1Core wakeup time only.
3.6 Power Management
The EFM32LG requires the AVDD_x, VDD_DREG and IOVDD_x pins to be connected together at the
PCB level. For practical schematic recommendations, please see the application note, "AN0002 EFM32
Hardware Design Considerations".
Table 3.6. Power Management
Symbol
Parameter
Condition
Min
Typ
Max
Unit
VBODextthr-
BOD threshold on falling
external supply voltage
1.82
1.85
V
VBODintthr-
BOD threshold on falling
internally regulated supply
voltage
1.62
1.68
V
VBODextthr+
BOD threshold on rising ex-
ternal supply voltage
1.85
V
VPORthr+
Power-on Reset (POR)
threshold on rising external
supply voltage
1.98
V
tRESET
Delay from reset is re-
leased until program execu-
tion starts
Applies to Power-on Reset,
Brown-out Reset and pin re-
set.
163
s
CDECOUPLE
Voltage regulator decou-
pling capacitor.
X5R capacitor recommended.
Apply between DECOUPLE
pin and GROUND
1
F
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