參數(shù)資料
型號： ADUC814ARUZ-REEL
廠商： Analog Devices Inc
文件頁數(shù)： 1/72頁
文件大小： 0K
描述： IC MCU FLASH 12BIT ADC 28TSSOP
標(biāo)準(zhǔn)包裝： 2,500
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
MicroConverter, Small Package
12-Bit ADC with Embedded Flash MCU
ADuC814
Rev. A
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
ANALOG I/O
6-channel 247 kSPS ADC
12-bit resolution
ADC high speed data capture mode
Programmable reference via on-chip DAC for low
level inputs, ADC performance specified to VREF = 1 V
Dual voltage output DACs
12-bit resolution, 15 s settling time
Memory
8 kbytes on-chip Flash/EE program memory
640 bytes on-chip Flash/EE data memory
Flash/EE, 100 year retention, 100 kcycle endurance
3 levels of Flash/EE program memory security
In-circuit serial downlaod (no external hardware)
256 bytes on-chip data RAM
8051 based core
8051 compatible instruction set
32 kHz external crystal,
on-chip programmable PLL (16.78 MHz max)
Three 16-bit timer/counters
11 programmable I/O lines
11 interrupt sources, 2 priority levels
Power
Specified for 3 V and 5 V operation
Normal: 3 mA @ 3 V (core CLK = 2.1 MHz)
Power-down: 15 A (32 kHz oscillator running)
On-chip peripherals
Power-on reset circuit (no need for external POR device)
Temperature monitor (±1.5°C accuracy)
Precision voltage reference
Time interval counter (wake-up/RTC timer)
UART serial I/O
SPI/I2C compatible serial I/O
Watchdog timer (WDT), power supply monitor (PSM)
Package and temperature range
28-lead TSSOP 4.4 mm × 9.7 mm package
Fully specified for 40°C to +125°C operation
APPLICATIONS
Optical networking—laser power control
Base station systems—power amplifier bias control
Precision instruments, smart sensors
Battery-powered systems, precision system monitors
FUNCTIONAL BLOCK DIAGRAM
ADuC814
PROG.
CLOCK
DIVIDER
XTAL2
XTAL1
T/H
AIN
MUX
TEMP
MONITOR
INTERNAL
BAND GAP
VREF
AIN0
VREF
CREF
AIN5
OSC
AND
PLL
DAC1
DAC0
BUF
DAC0
DAC1
DAC
CONTROL
LOGIC
12-BIT
ADC
CONTROL
LOGIC
BUF
POWER-
ON
RESET
8 KBYTES FLASH/EE PROGRAM MEMORY
640 BYTES FLASH/EE DATA MEMORY
256 BYTES USER RAM
3
× 16-BIT
TIMER/COUNTERS
1
× WAKE-UP/RTC
TIMER
10
× DIGITAL
I/O PINS
8051-BASED MCU WITH ADDITIONAL
PERIPHERALS
ON-CHIP MONITORS
POWER SUPPLY
MONITOR
WATCHDOG TIMER
UART AND SPI
SERIAL I/O
02748-A-001
Figure 1.
GENERAL DESCRIPTION
The ADuC814 is a fully integrated 247 kSPS, 12-bit data acquisi-
tion system incorporating a high performance multichannel
ADC, an 8-bit MCU, and program/data Flash/EE memory on a
single chip.
This low power device operates from a 32 kHz crystal with an
on-chip PLL generating a high frequency clock of 16.78 MHz.
This clock is, in turn, routed through a programmable clock
divider from which the MCU core clock operating frequency is
generated.
The microcontroller core is an 8052 and is compatible with an
8051 instruction. 8 kBytes of nonvolatile Flash/EE program
memory are provided on-chip. 640 bytes of nonvolatile Flash/EE
data memory and 256 bytes RAM are also integrated on-chip.
The ADuC814 also incorporates additional analog functionality
with dual 12-bit DACs, a power supply monitor, and a band gap
reference. On-chip digital peripherals include a watchdog timer,
time interval counter, three timer/counters, and two serial I/O
ports (SPI and UART).
On-chip factory firmware supports in-circuit serial download
and debug modes (via UART), as well as single-pin emulation
mode via the DLOAD pin. The ADuC814 is supported by a
QuickStart Development System.
The part operates from a single 3 V or 5 V supply over the
extended temperature range 40°C to +125°C. When operating
from 3 V supplies, the power dissipation for the part is below
10 mW. The ADuC814 is housed in a 28-lead TSSOP package.
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