參數(shù)資料
型號: EFM32GG840F1024
廠商: Energy Micro
文件頁數(shù): 15/68頁
文件大?。?/td> 0K
描述: IC MCU 32BIT 1024KB FLASH QFN64
標準包裝: 1,000
系列: Giant Gecko
核心處理器: ARM? Cortex?-M3
芯體尺寸: 32-位
速度: 48MHz
連通性: I²C,IrDA,智能卡,SPI,UART/USART
外圍設備: 欠壓檢測/復位,DMA,LCD,POR,PWM,WDT
輸入/輸出數(shù): 56
程序存儲器容量: 1MB(1M x 8)
程序存儲器類型: 閃存
RAM 容量: 128K x 8
電壓 - 電源 (Vcc/Vdd): 1.85 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: 64-WFQFN 裸露焊盤
包裝: 帶卷 (TR)
Preliminary
...the world's most energy friendly microcontrollers
2013-06-28 - EFM32GG840FXX - d0041_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
相關PDF資料
PDF描述
EFM32GG842F1024 IC MCU 32BIT 1024KB FLASH QFP64
EFM32GG880F1024 IC MCU 32BIT 1024KB FLSH LQFP100
EFM32GG890F1024 IC MCU 32BIT 1024KB FLASH BGA112
EFM32GG895F1024 IC MCU 32BIT 1024KB FLASH BGA120
EFM32GG940F512 IC MCU 32BIT 512KB FLASH QFN64
相關代理商/技術(shù)參數(shù)
參數(shù)描述
EFM32GG840F1024G-E-QFN64R 功能描述:IC MCU 32BIT 1MB FLASH 64QFN 制造商:silicon labs 系列:Giant Gecko 包裝:剪切帶(CT) 零件狀態(tài):在售 核心處理器:ARM? Cortex?-M3 核心尺寸:32-位 速度:48MHz 連接性:I2C,IrDA,智能卡,SPI,UART/USART 外設:欠壓檢測/復位,DMA,LCD,POR,PWM,WDT I/O 數(shù):56 程序存儲容量:1MB(1M x 8) 程序存儲器類型:閃存 EEPROM 容量:- RAM 容量:128K x 8 電壓 - 電源(Vcc/Vdd):1.98 V ~ 3.8 V 數(shù)據(jù)轉(zhuǎn)換器:A/D 8x12b,D/A 2x12b 振蕩器類型:內(nèi)部 工作溫度:-40°C ~ 85°C(TA) 封裝/外殼:64-VFQFN 裸露焊盤 供應商器件封裝:64-QFN(9x9) 標準包裝:1
EFM32GG840F1024-QFN64 制造商:Energy Micro AS 功能描述:GIANT GECKO MCU - Tape and Reel 制造商:Energy Micro AS 功能描述:IC MCU 32BIT 1MB FLASH 64QFN
EFM32GG840F1024-QFN64T 制造商:Energy Micro AS 功能描述:32 BIT ARM MPU, GIANT GECKO - Trays
EFM32GG840F1024-QFN64-T 制造商:Energy Micro AS 功能描述:IC MCU 32BIT 1MB FLASH 64QFN
EFM32-GG840F1024-SK 制造商:Energy Micro AS 功能描述:GIANT GECKO SAMPLE KIT - Bulk 制造商:Energy Micro 功能描述:energy micro EFM32-GG840F1024-SK Microcontrollers (MCU)