参数资料
型号: ADUC7039BCP6Z-RL
厂商: Analog Devices Inc
文件页数: 43/92页
文件大小: 0K
描述: IC MCU ARM7 BATT SENSER 32LFCSP
标准包装: 2,500
系列: MicroConverter® ADuC7xxx
核心处理器: ARM7
芯体尺寸: 16/32-位
速度: 20.48MHz
连通性: LIN,SPI
外围设备: POR,温度传感器,WDT
输入/输出数: 6
程序存储器容量: 64KB(32K x 16)
程序存储器类型: 闪存
RAM 容量: 1K x 32
电压 - 电源 (Vcc/Vdd): 3.5 V ~ 18 V
数据转换器: A/D 2x16b
振荡器型: 内部
工作温度: -40°C ~ 115°C
封装/外壳: 32-VFQFN 裸露焊盘,CSP
包装: 带卷 (TR)
ADuC7039
Data Sheet
Rev. D | Page 48 of 92
POWER SUPPLY SUPPORT CIRCUITS
The ADuC7039 integrates two on-chip, low dropout (LDO)
regulators that are driven directly from the battery voltage to
generate a 2.6 V internal supply. This 2.6 V supply is then used
as the supply voltage for the ARM7 MCU and peripherals
including the precision analog circuits on-chip.
The digital LDO functions with two external capacitors in
parallel, on REG_DVDD, whereas, the analog LDO functions
with an external capacitor (0.47 μF) on REG_AVDD.
The ESR of the output capacitor affects stability of the LDO
control loop. An ESR of 5 Ω or less for frequencies above 32 kHz
is recommended to ensure the stability of the regulators.
Power-on-reset (POR), and low voltage flag (LVF) functions are
also integrated to ensure safe operation of the MCU as well as
continuous monitoring of the battery power supply. The POR
circuit is designed to operate with a VDD power-on time (0 V
to 12 V), of greater than 100 μs. It is, therefore, recommended
to carefully select external power supply decoupling compo-
nents to ensure that the VDD supply, power-on time, can
always be guaranteed to be greater than 100 μs. The series
resistor and decoupling capacitor combination on VDD should
be chosen to ensure an RC time constant of at least 100 μs, for
example 10 Ω and 10 μF as shown in Figure 33.
As shown in Figure 19, once the supply voltage (on VDD),
reaches a minimum operating voltage of 3 V, a POR signal
keeps the ARM core in reset for 20 ms. This ensures that the
regulated power supply voltage (REG_DVDD) supplied to the
ARM core and associated peripherals, is above the minimum
operational voltage to guarantee full functionality. A POR flag
is set in the RSTSTA MMR to indicate a POR reset event has
occurred.
At voltages below the POR level, an additional low voltage flag
can be enabled (HVCFG[2]). It can be used to indicate that the
contents of the SRAM remain valid after a reset event. The
operation of the low voltage flag is shown in Figure 19. When
enabled, the status of this bit can be monitored via HVSTA[2].
If this bit is set, then the SRAM contents are valid. If this bit is
cleared, then the SRAM contents can be corrupted.
Figure 19. Typical Power-On Cycle
VDD
3V TYP
12V
2.6V
POR TRIP 3.0V TYP
LVF TRIP 2.1V TYP
REG_DVDD
POR_TRIP
RESET (INTERNAL
ACTIVE LOW RESET
SIGNAL)
ENABLE_LVF
20ms TYP
08
46
3-
0
18
相关PDF资料
PDF描述
ADUC7061BCPZ32 IC MCU 16/32BIT 32KB 32LFCSP
ADUC7121BBCZ-RL PRECISION ANALOG MCU I.C
ADUC7122BBCZ-RL PRECISION ANALOG MCU I.C
ADUC7126BSTZ126-RL IC MCU 16/32B 126KB FLASH 80LQFP
ADUC7129BSTZ126 IC DAS MCU ARM7 ADC/DDS 80-LQFP
相关代理商/技术参数
参数描述
ADUC7039WBCPZ 制造商:Analog Devices 功能描述:FLASH 64K ARM7 DUAL 16-BIT ADC LIN I.C. - Trays 制造商:Analog Devices 功能描述:IC MCU ARM7 64KB FLASH 32LFCSP 制造商:Analog Devices 功能描述:Flash 64k ARM7 Dual 16-Bit ADC LIN I.C.
ADUC7039WBCPZ-RL 制造商:Analog Devices 功能描述:FLASH 64K ARM7 DUAL 16-BIT ADC LIN I.C. - Tape and Reel 制造商:Analog Devices 功能描述:IC MCU ARM7 64KB FLASH 32LFCSP 制造商:Analog Devices 功能描述:Flash 64k ARM7 Dual 16-Bit ADC LIN I.C.
ADUC7060 制造商:AD 制造商全称:Analog Devices 功能描述:Low Power, Precision Analog Microcontroller, Dual Sigma-Delta ADCs, Flash/EE, ARM7TDMI
ADUC7060BCPZ32 功能描述:IC MCU 24BIT 32KB FLASH 48LFCSP RoHS:是 类别:集成电路 (IC) >> 嵌入式 - 微控制器, 系列:MicroConverter® ADuC7xxx 产品培训模块:MCU Product Line Introduction XMEGA Introduction AVR XMEGA USB Connectivity 标准包装:90 系列:AVR® XMEGA 核心处理器:AVR 芯体尺寸:8/16-位 速度:32MHz 连通性:I²C,IrDA,SPI,UART/USART 外围设备:欠压检测/复位,DMA,POR,PWM,WDT 输入/输出数:50 程序存储器容量:192KB(96K x 16) 程序存储器类型:闪存 EEPROM 大小:4K x 8 RAM 容量:16K x 8 电压 - 电源 (Vcc/Vdd):1.6 V ~ 3.6 V 数据转换器:A/D 16x12b; D/A 2x12b 振荡器型:内部 工作温度:-40°C ~ 85°C 封装/外壳:64-TQFP 包装:托盘 配用:ATSTK600-RC14-ND - STK600 SOCKET/ADAPTER 64TQFPATSTK600-TQFP64-ND - STK600 SOCKET/ADAPTER 64-TQFPATAVRONEKIT-ND - KIT AVR/AVR32 DEBUGGER/PROGRMMRATAVRISP2-ND - PROGRAMMER AVR IN SYSTEM
ADUC7060BCPZ32-RL 功能描述:IC MCU FLASH 24BIT 32KB 48LFCSP RoHS:是 类别:集成电路 (IC) >> 嵌入式 - 微控制器, 系列:MicroConverter® ADuC7xxx 标准包装:38 系列:Encore!® XP® 核心处理器:eZ8 芯体尺寸:8-位 速度:5MHz 连通性:IrDA,UART/USART 外围设备:欠压检测/复位,LED,POR,PWM,WDT 输入/输出数:16 程序存储器容量:4KB(4K x 8) 程序存储器类型:闪存 EEPROM 大小:- RAM 容量:1K x 8 电压 - 电源 (Vcc/Vdd):2.7 V ~ 3.6 V 数据转换器:- 振荡器型:内部 工作温度:-40°C ~ 105°C 封装/外壳:20-SOIC(0.295",7.50mm 宽) 包装:管件 其它名称:269-4116Z8F0413SH005EG-ND