參數(shù)資料
型號： ADUC814ARUZ-REEL7
廠商： Analog Devices Inc
文件頁數(shù)： 58/72頁
文件大?。?/td> 0K
描述： IC MCU FLASH 12BIT ADC 28TSSOP
標(biāo)準包裝： 1,000
系列： MicroConverter® ADuC8xx
核心處理器： 8052
芯體尺寸： 8-位
速度： 16.78MHz
連通性： I²C，SPI，UART/USART
外圍設(shè)備： POR，PSM，溫度傳感器，WDT
輸入/輸出數(shù)： 17
程序存儲器容量： 8KB（8K x 8）
程序存儲器類型： 閃存
EEPROM 大?。?/td> 640 x 8
RAM 容量： 256 x 8
電壓 - 電源 (Vcc/Vdd)： 2.7 V ~ 5.5 V
數(shù)據(jù)轉(zhuǎn)換器： A/D 6x12b; D/A 2x12b
振蕩器型： 內(nèi)部
工作溫度： -40°C ~ 125°C
封裝/外殼： 28-TSSOP（0.173"，4.40mm 寬）
包裝： 帶卷 (TR)
配用： EVAL-ADUC814QSZ-ND - KIT DEV FOR ADUC814 MICROCONVRTR
ADuC814
Rev. A | Page 61 of 72
Power-Saving Modes
Setting the idle and power-down mode bits, PCON.0 and
PCON.1, respectively, in the PCON SFR described in Table 5,
allows the chip to be switched from normal mode to idle mode,
and also to full power-down mode.
In idle mode, the oscillator continues to run, but the core clock
generated from the PLL is halted. The on-chip peripherals con-
tinue to receive the clock and remain functional. The CPU status
is preserved with the stack pointer, program counter, and all
other internal registers maintaining their data during idle mode.
Port pins and DAC output pins also retain their states in this
mode. The chip recovers from idle mode upon receiving any
enabled interrupt, or upon receiving a hardware reset.
In power-down mode, both the PLL and the clock to the core
are stopped. The on-chip oscillator can be halted or can
continue to oscillate depending on the state of the oscillator
power-down bit (OSC_PD) in the PLLCON SFR. The TIC,
being driven directly from the oscillator, can also be enabled
during power-down. All other on-chip peripherals however, are
shut down. Port pins retain their logic levels in this mode, but
the DAC output goes to a high impedance state (three-state).
During full power-down mode, the ADuC814 consumes a total
of 5 A typically. There are five ways of terminating power-
down mode, as described in the next sections.
Asserting RESET (Pin 10)
Returns to normal mode and all registers are set to their default
state. Program execution starts at the reset vector once the RESET
pin is de-asserted.
Cycling Power
All registers are set to their default state and program execution
starts at the reset vector.
Time Interval Counter (TIC) Interrupt
Power-down mode is terminated and the CPU services the TIC
interrupt. The RETI at the end of the TIC interrupt service
routine returns the core to the instruction following the one
that enabled power-down.
SPI Interrupt
Power-down mode is terminated and the CPU services the SPI
interrupt. The RETI at the end of the ISR returns the core to the
instruction following the one that enabled power-down. Note
that the SPI power-down interrupt enable bit (SERIPD) in the
PCON SFR must first be set to allow this mode of operation.
INT0 Interrupt
Power-down mode is terminated and the CPU services the
INT0 interrupt. The RETI at the end of the ISR returns the core
to the instruction following the one that enabled power-down.
The INT0 pin must not be driven low during or within two
machine cycles of the instruction that initiates power-down
mode. Note that the INT0 power-down interrupt enable bit
(INT0PD) in the PCON SFR must first be set to allow this mode
of operation.
Power-On Reset
An internal POR (power-on-reset) is implemented on the
ADuC814. For DVDD below 2.45 V, the internal POR holds the
ADuC814 in reset. As DVDD rises above 2.45 V, an internal timer
times out for approximately128 ms before the part is released
from reset. The user must ensure that the power supply has
reached a stable 2.7 V minimum level by this time. Likewise on
power-down, the internal POR holds the ADuC814 in reset
until the power supply has dropped below 1 V. Figure 57
illustrates the operation of the internal POR in detail.
128ms TYP
1.0V
128ms TYP
2.45V TYP
1.0V TYP
INTERNAL
CORE RESET
DVDD
02748-A
-063
Figure 57. Internal POR Operation
Grounding and Board Layout Recommendations
As with all high resolution data converters, special attention
must be paid to grounding and PC board layout of ADuC814
based designs in order to achieve optimum performance from
the ADCs and DAC. Although the ADuC814 has separate pins
for analog and digital ground (AGND and DGND), the user
must not tie these to two separate ground planes unless the two
ground planes are connected together very close to the ADuC814,
as illustrated in the simplified example of Figure 58a. In systems
where digital and analog ground planes are connected together
somewhere else (at the system’s power supply for example), they
cannot be connected again near the ADuC814 because a ground
loop would result. In these cases, tie all of the ADuC814’s
AGND and DGND pins to the analog ground plane, as
illustrated in Figure 58b. In systems with only one ground plane,
ensure that the digital and analog components are physically
separated onto separate halves of the board such that digital
return currents do not flow near analog circuitry and vice versa.
The ADuC814 can then be placed between the digital and
analog sections, as illustrated in Figure 58c.
相關(guān)PDF資料
PDF描述
ADUC814ARUZ-REEL IC MCU FLASH 12BIT ADC 28TSSOP
ADUC7060BCPZ32-RL IC MCU FLASH 24BIT 32KB 48LFCSP
AD7510DIKQ IC SWITCH QUAD SPST 16CDIP
LX256EV-5FN484I IC SWITCH DIGITAL 484FPBGA
LX256EV-35FN484C IC SWITCH DIGITAL 484FPBGA
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
ADUC814BRU 功能描述:IC ADC 12BIT W/FLASH MCU 28TSSOP RoHS:否 類別:集成電路 (IC) >> 嵌入式 - 微控制器， 系列:MicroConverter® ADuC8xx 標(biāo)準包裝:38 系列:Encore!® XP® 核心處理器:eZ8 芯體尺寸:8-位 速度:5MHz 連通性:IrDA，UART/USART 外圍設(shè)備:欠壓檢測/復(fù)位，LED，POR，PWM，WDT 輸入/輸出數(shù):16 程序存儲器容量:4KB（4K x 8） 程序存儲器類型:閃存 EEPROM 大小:- RAM 容量:1K x 8 電壓 - 電源 (Vcc/Vdd):2.7 V ~ 3.6 V 數(shù)據(jù)轉(zhuǎn)換器:- 振蕩器型:內(nèi)部 工作溫度:-40°C ~ 105°C 封裝/外殼:20-SOIC（0.295"，7.50mm 寬） 包裝:管件 其它名稱:269-4116Z8F0413SH005EG-ND
ADUC814BRU-REEL 制造商:Analog Devices 功能描述:MCU 8-bit ADuC8xx 8052 CISC 8KB Flash 3V/5V 28-Pin TSSOP T/R 制造商:Analog Devices 功能描述:MCU 8BIT CISC 8KB FLASH 3.3V/5V 28TSSOP - Tape and Reel 制造商:Analog Devices Inc. 功能描述:8-bit Microcontrollers - MCU 12 BIT ADC WITH EMBEDDED 8-BIT MICRO I.C
ADUC814BRU-REEL7 制造商:Analog Devices 功能描述:MCU 8-Bit ADuC8xx 8052 CISC 8KB Flash 3V/5V 28-Pin TSSOP T/R 制造商:Analog Devices 功能描述:MCU 8BIT CISC 8KB FLASH 3.3V/5V 28TSSOP - Tape and Reel 制造商:Analog Devices Inc. 功能描述:8-bit Microcontrollers - MCU 12 BIT ADC WITH EMBEDDED 8-BIT MICRO I.C
ADUC814BRUZ 功能描述:IC ADC 12BIT W/FLASH MCU 28TSSOP RoHS:是 類別:集成電路 (IC) >> 嵌入式 - 微控制器， 系列:MicroConverter® ADuC8xx 產(chǎn)品培訓(xùn)模塊:MCU Product Line Introduction XMEGA Introduction AVR XMEGA USB Connectivity 標(biāo)準包裝:90 系列:AVR® XMEGA 核心處理器:AVR 芯體尺寸:8/16-位 速度:32MHz 連通性:I²C，IrDA，SPI，UART/USART 外圍設(shè)備:欠壓檢測/復(fù)位，DMA，POR，PWM，WDT 輸入/輸出數(shù):50 程序存儲器容量:192KB（96K x 16） 程序存儲器類型:閃存 EEPROM 大小:4K x 8 RAM 容量:16K x 8 電壓 - 電源 (Vcc/Vdd):1.6 V ~ 3.6 V 數(shù)據(jù)轉(zhuǎn)換器:A/D 16x12b; D/A 2x12b 振蕩器型:內(nèi)部 工作溫度:-40°C ~ 85°C 封裝/外殼:64-TQFP 包裝:托盤 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
ADUC814BRUZ-REEL 功能描述:IC MCU 8K FLASH ADC/DAC 28-TSSOP RoHS:是 類別:集成電路 (IC) >> 嵌入式 - 微控制器， 系列:MicroConverter® ADuC8xx 標(biāo)準包裝:38 系列:Encore!® XP® 核心處理器:eZ8 芯體尺寸:8-位 速度:5MHz 連通性:IrDA，UART/USART 外圍設(shè)備:欠壓檢測/復(fù)位，LED，POR，PWM，WDT 輸入/輸出數(shù):16 程序存儲器容量:4KB（4K x 8） 程序存儲器類型:閃存 EEPROM 大小:- RAM 容量:1K x 8 電壓 - 電源 (Vcc/Vdd):2.7 V ~ 3.6 V 數(shù)據(jù)轉(zhuǎn)換器:- 振蕩器型:內(nèi)部 工作溫度:-40°C ~ 105°C 封裝/外殼:20-SOIC（0.295"，7.50mm 寬） 包裝:管件 其它名稱:269-4116Z8F0413SH005EG-ND
發(fā)布緊急采購，3分鐘左右您將得到回復(fù)。

采購需求

(若只采購一條型號，填寫一行即可)

發(fā)布成功！您可以繼續(xù)發(fā)布采購。也可以進入我的后臺，查看報價

發(fā)布成功！您可以繼續(xù)發(fā)布采購。也可以進入我的后臺，查看報價

*型號 *數(shù)量 廠商 批號 封裝
添加更多采購

我的聯(lián)系方式

*
*
*