參數(shù)資料
型號： EVAL-ADUC842QSZ
廠商： Analog Devices Inc
文件頁數(shù)： 1/88頁
文件大小： 0K
描述： KIT DEV QUICK START ADUC842
標準包裝： 1
系列： QuickStart™ 套件
類型： MCU
適用于相關(guān)產(chǎn)品： ADuC824
所含物品： 評估板、電源、纜線、軟件和說明文檔
MicroConverter 12-Bit ADCs and DACs with
Embedded High Speed 62-kB Flash MCU
ADuC841/ADuC842/ADuC843
Rev. 0
Information furnished by Analog Devices is believed to be accurate and reliable.
However, no responsibility is assumed by Analog Devices for its use, nor for any
infringements of patents or other rights of third parties that may result from its use.
Specifications subject to change without notice. No license is granted by implication
or otherwise under any patent or patent rights of Analog Devices. Trademarks and
registered trademarks are the property of their respective owners.
One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A.
Tel: 781.329.4700
Fax: 781.326.8703
2003 Analog Devices, Inc. All rights reserved.
FEATURES
Pin compatable ugrade of ADuC812/ADuC831/ADuC832
Increased performance
Single-cycle 20 MIPS 8052 core
High speed 420 kSPS 12-bit ADC
Increased memory
Up to 62 kBytes on-chip Flash/EE program memory
4 kBytes on-chip Flash/EE data memory
In-circuit reprogrammable
Flash/EE, 100 year retention, 100 kCycle endurance
2304 bytes on-chip data RAM
Smaller package
8 mm × 8 mm chip scale package
52-lead PQFP—pin compatable upgrade
Analog I/O
8-channel, 420 kSPS high accuracy, 12-bit ADC
On-chip, 15 ppm/°C voltage reference
DMA controller, high speed ADC-to-RAM capture
Two 12-bit voltage output DACs1
Dual output PWM ∑- DACs
On-chip temperature monitor function
8052 based core
8051 compatible instruction set (20 MHz max)
High performance single-cycle core
32 kHz external crystal, on-chip programmable PLL
12 interrupt sources, 2 priority levels
Dual data pointers, extended 11-bit stack pointer
On-chip peripherals
Time interval counter (TIC)
UART, I2C, and SPI Serial I/O
Watchdog timer (WDT)
Power supply monitor (PSM)
Power
Normal: 4.5 mA @ 3 V (core CLK = 2.098 MHz)
Power-down: 10 A @ 3 V2
Development tools
Low cost, comprehensive development system
incorporating nonintrusive single-pin emulation,
IDE based assembly and C source debugging
APPLICATIONS
Optical networking—laser power control
Base station systems
Precision instrumentation, smart sensors
Transient capture systems
DAS and communications systems
1 ADuC841/ADuC842 only.
2 ADuC842/ADuC843 only, ADuC841 driven directly by external crystal.
FUNCTIONAL BLOCK DIAGRAM
62 kBYTES FLASH/EE PROGRAM MEMORY
4 kBYTES FLASH/EE DATA MEMORY
2304 BYTES USER RAM
3
× 16 BIT TIMERS
1
× REAL TIME CLOCK
4
× PARALLEL
PORTS
20 MIPS 8052 BASED MCU WITH ADDITIONAL
PERIPHERALS
ADuC841/ADuC842/ADuC843
XTAL2
XTAL1
TEMP
SENSOR
CREF
INTERNAL
BAND GAP
VREF
ADC0
ADC1
ADC5
ADC6
ADC7
OSC
12-BIT
DAC
DAC1
PWM0
T/H
MUX
12-BIT ADC
HARDWARE
CALIBRATON
BUF
DAC1
BUF
PWM1
12-BIT
DAC
16-BIT
Σ- DAC
16-BIT
PWM
16-BIT
PWM
POWER SUPPLY MON
WATCHDOG TIMER
UART, I2 C, AND SPI
SERIAL I/O
MUX
16-BIT
Σ- DAC
03260-0-001
PLL2
Figure 1.
GENERAL DESCRIPTION
The ADuC841/ADuC842/ADuC843 are complete smart
transducer front ends, that integrates a high performance self-
calibrating multichannel ADC, a dual DAC, and an optimized
single-cycle 20 MHz 8-bit MCU (8051 instruction set
compatible) on a single chip.
The ADuC841 and ADuC842 are identical with the exception of
the clock oscillator circuit; the ADuC841 is clocked directly
from an external crystal up to 20 MHz whereas the ADuC842
uses a 32 kHz crystal with an on-chip PLL generating a
programmable core clock up to 16.78 MHz.
The ADuC843 is identical to the ADuC842 except that the
ADuC843 has no analog DAC outputs.
The microcontroller is an optimized 8052 core offering up to
20 MIPS peak performance. Three different memory options
are available offering up to 62 kBytes of nonvolatile Flash/EE
program memory. Four kBytes of nonvolatile Flash/EE data
memory, 256 bytes RAM, and 2 kBytes of extended RAM are
also integrated on-chip.
(continued on page 15)
相關(guān)PDF資料
PDF描述
AIUR-06-4R7K INDUCTOR POWER 4.7UH 10% T/H
V110C8C75BL3 CONVERTER MOD DC/DC 8V 75W
EVAL-ADUC842QS KIT DEV FOR ADUC842 QUICK START
V110C8C75BL CONVERTER MOD DC/DC 8V 75W
AIUR-09-821K INDUCTOR POWER 820UH 10% T/H
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