參數(shù)資料
型號(hào): EFM32G280F64
廠商: Energy Micro
文件頁(yè)數(shù): 21/69頁(yè)
文件大?。?/td> 0K
描述: MCU 32BIT 64KB FLASH 100-LQFP
標(biāo)準(zhǔn)包裝: 1,000
系列: Gecko
核心處理器: ARM? Cortex?-M3
芯體尺寸: 32-位
速度: 32MHz
連通性: EBI/EMI,I²C,IrDA,智能卡,SPI,UART/USART
外圍設(shè)備: 欠壓檢測(cè)/復(fù)位,DMA,POR,PWM,WDT
輸入/輸出數(shù): 86
程序存儲(chǔ)器容量: 64KB(64K x 8)
程序存儲(chǔ)器類型: 閃存
RAM 容量: 16K x 8
電壓 - 電源 (Vcc/Vdd): 1.8 V ~ 3.8 V
數(shù)據(jù)轉(zhuǎn)換器: A/D 8x12b,D/A 2x12b
振蕩器型: 外部
工作溫度: -40°C ~ 85°C
封裝/外殼: 100-LQFP
包裝: 帶卷 (TR)
其它名稱: EFM32G280F64-QFP100
...the world's most energy friendly microcontrollers
2013-06-28 - EFM32G280FXX - d0006_Rev1.60
28
www.energymicro.com
3.9.2 HFXO
Table 3.10. HFXO
Symbol
Parameter
Condition
Min
Typ
Max
Unit
fHFXO
Supported nominal crystal
Frequency
4
32
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
Startup time
32 MHz: ESR=30 Ohm,
CL=10 pF, HFXOBOOST in
CMU_CTRL equals 0b11
400
s
tHFXO
Pulse width removed by
glitch detector
1
4
ns
3.9.3 LFRCO
Table 3.11. LFRCO
Symbol
Parameter
Condition
Min
Typ
Max
Unit
fLFRCO
Oscillation frequency ,
VDD= 3.0 V, TAMB=25°C
32.768
kHz
tLFRCO
Startup time not including
software calibration
150
s
ILFRCO
Current consumption
190
nA
TCLFRCO
Temperature coefficient
±0.02
%/°C
VCLFRCO
Supply voltage coefficient
±15
%/V
TUNESTEPL-
FRCO
Frequency step for LSB
change in TUNING value
1.5
%
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