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參數資料
| 型號： | ADUC812BSZ-REEL |
| 廠商： | Analog Devices Inc |
| 文件頁數： | 1/57頁 |
| 文件大?。?/td> | 0K |
| 描述： | IC MCU FLASH 12BIT ADC 52MQFP |
| 標準包裝： | 800 |
| 系列： | MicroConverter® ADuC8xx |
| 核心處理器： | 8052 |
| 芯體尺寸： | 8-位 |
| 速度： | 16MHz |
| 連通性： | I²C，SPI，UART/USART |
| 外圍設備： | PSM，溫度傳感器，WDT |
| 輸入/輸出數： | 34 |
| 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 |
| 數據轉換器： | A/D 8x12b，D/A 2x12b |
| 振蕩器型： | 內部 |
| 工作溫度： | -40°C ~ 85°C |
| 封裝/外殼： | 52-QFP |
| 包裝： | 帶卷 (TR) |
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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. 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 companies.
One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A.
Tel: 781/329-4700
www.analog.com
Fax:
Analog Devices, Inc. All rights reserved.
REV.
MicroConverter, Multichannel
12-Bit ADC with Embedded Flash MCU
FUNCTIONAL BLOCK DIAGRAM
MICROCONTROLLER
8051 BASED
MICROCONTROLLER CORE
POWER SUPPLY
MONITOR
WATCHDOG
TIMER
640
8 USER
FLASH EEPROM
256
8 USER
RAM
SPI
12-BIT
SUCCESSIVE
APPROXIMATION
ADC
CONTROL
AND
CALIBRATION
LOGIC
T/H
TEMP
SENSOR
2.5V
REF
AIN
MUX
BUF
DAC0
MOSI/
SDATA
MISO
(P3.3)
SCLOCK
TxD
(P3.1)
RxD
(P3.0)
XTAL2
XTAL1
DGND
DVDD
AGND
AVDD
DAC0
DAC1
T0 (P3.4)
T1 (P3.5)
T2 (P1.0)
T2EX (P1.1)
INT0 (P3.2)
INT1 (P3.3)
ALE
PSEN
EA
RESET
ADuC812
P3.0–P3.7
P2.0–P2.7
P1.0–P1.7
P0.0–P0.7
AIN0 (P1.0)–AIN7 (P1.7)
VREF
UART
8K
8 PROGRAM
FLASH EEPROM
DAC
CONTROL
3
16-BIT
TIMER/COUNTERS
OSC
MUX
DAC1
BUF
CREF
BUF
2-WIRE
SERIAL I/O
FEATURES
Analog I/O
8-Channel, High Accuracy 12-Bit ADC
On-Chip, 100 ppm/ C Voltage Reference
High Speed 200 kSPS
DMA Controller for High Speed ADC-to-RAM Capture
2 12-Bit Voltage Output DACs
On-Chip Temperature Sensor Function
Memory
8K Bytes On-Chip Flash/EE Program Memory
640 Bytes On-Chip Flash/EE Data Memory
256 Bytes On-Chip Data RAM
16M Bytes External Data Address Space
64K Bytes External Program Address Space
8051 Compatible Core
12 MHz Nominal Operation (16 MHz Max)
3 16-Bit Timer/Counters
High Current Drive Capability—Port 3
9 Interrupt Sources, 2 Priority Levels
Power
Specified for 3 V and 5 V Operation
Normal, Idle, and Power-Down Modes
On-Chip Peripherals
UART and SPI
Serial I/O
2-Wire (400 kHz I2C Compatible) Serial I/O
Watchdog Timer
Power Supply Monitor
APPLICATIONS
Intelligent Sensors Calibration and Conditioning
Battery-Powered Systems (Portable PCs, Instruments,
Monitors)
Transient Capture Systems
DAS and Communications Systems
Control Loop Monitors (Optical Networks/Base Stations)
GENERAL DESCRIPTION
The ADuC812 is a fully integrated 12-bit data acquisition system
incorporating a high performance self-calibrating multichannel
ADC, dual DAC, and programmable 8-bit MCU (8051 instruc-
tion set compatible) on a single chip.
The programmable 8051 compatible core is supported by 8K
bytes Flash/EE program memory, 640 bytes Flash/EE data
memory, and 256 bytes data SRAM on-chip.
Additional MCU support functions include Watchdog Timer,
Power Supply Monitor, and ADC DMA functions. Thirty-two
programmable I/O lines, I
2C compatible SPI and Standard
UART Serial Port I/O are provided for multiprocessor interfaces
and I/O expansion.
Normal, idle, and power-down operating modes for both the
MCU core and analog converters allow flexible power manage-
ment schemes suited to low power applications. The part is
specified for 3 V and 5 V operation over the industrial tem-
perature range and is available in a 52-lead, plastic quad
flatpack package, and in a 56-lead, chip scale package.
2013
781/461-3113
F
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