参数资料
型号: EFM32G840F128
厂商: Energy Micro
文件页数: 11/69页
文件大小: 0K
描述: IC MCU 32BIT 128KB FLASH 64QFN
特色产品: EFM32 Gecko
标准包装: 1
系列: Gecko
核心处理器: ARM? Cortex?-M3
芯体尺寸: 32-位
速度: 32MHz
连通性: EBI/EMI,I²C,IrDA,智能卡,SPI,UART/USART
外围设备: 欠压检测/复位,DMA,LCD,POR,PWM,WDT
输入/输出数: 56
程序存储器容量: 128KB(128K x 8)
程序存储器类型: 闪存
RAM 容量: 16K x 8
电压 - 电源 (Vcc/Vdd): 1.8 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: 64-VFQFN 裸露焊盘
包装: 标准包装
其它名称: 914-1015-6
...the world's most energy friendly microcontrollers
2013-06-28 - EFM32G840FXX - d0008_Rev1.60
19
www.energymicro.com
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
tRESETdly
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
tRESET
negative pulse length to en-
sure complete reset of de-
vice
50
ns
CDECOUPLE
Voltage regulator decou-
pling capacitor.
X5R capacitor recommended.
Apply between DECOUPLE
pin and GROUND
1
F
3.7 Flash
Table 3.7. Flash
Symbol
Parameter
Condition
Min
Typ
Max
Unit
ECFLASH
Flash erase cycles before
failure
20000
cycles
TAMB<150°C
10000
h
TAMB<85°C
10
years
RETFLASH
Flash data retention
TAMB<70°C
20
years
tW_PROG
Word (32-bit) programming
time
20
s
tP_ERASE
Page erase time
20
20.4
20.8
ms
tD_ERASE
Device erase time
40
40.8
41.6
ms
IERASE
Erase current
7
1
mA
IWRITE
Write current
7
1
mA
VFLASH
Supply voltage during flash
erase and write
1.8
3.8
V
1Measured at 25°C
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