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ADUC824BS

更新时间: 2024-01-12 15:45:30
品牌 Logo 应用领域
亚德诺 - ADI 转换器闪存微控制器和处理器外围集成电路时钟
页数 文件大小 规格书
68页 1047K
描述
MicroConverter, Dual-Channel 16-/24-Bit ADCs with Embedded FLASH MCU

ADUC824BS 技术参数

是否无铅: 含铅是否Rohs认证: 符合
生命周期:Obsolete零件包装代码:QFP
包装说明:QFP,针数:52
Reach Compliance Code:compliantECCN代码:EAR99
HTS代码:8542.31.00.01风险等级:5.27
具有ADC:YES其他特性:ALSO OPERATES AT 5V SUPPLY
地址总线宽度:24位大小:8
最大时钟频率:0.032768 MHzDAC 通道:YES
DMA 通道:NO外部数据总线宽度:8
JESD-30 代码:S-PQFP-G52JESD-609代码:e3
长度:10 mm湿度敏感等级:3
I/O 线路数量:32端子数量:52
最高工作温度:85 °C最低工作温度:-40 °C
PWM 通道:NO封装主体材料:PLASTIC/EPOXY
封装代码:QFP封装形状:SQUARE
封装形式:FLATPACK峰值回流温度(摄氏度):260
认证状态:Not QualifiedROM可编程性:FLASH
座面最大高度:2.39 mm速度:12.58 MHz
最大供电电压:3.6 V最小供电电压:2.7 V
标称供电电压:3 V表面贴装:YES
技术:CMOS温度等级:INDUSTRIAL
端子面层:Matte Tin (Sn)端子形式:GULL WING
端子节距:0.65 mm端子位置:QUAD
处于峰值回流温度下的最长时间:40宽度:10 mm
uPs/uCs/外围集成电路类型:MICROCONTROLLERBase Number Matches:1

ADUC824BS 数据手册

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®
MicroConverter , Dual-Channel  
16-/24-Bit ADCs with Embedded FLASH MCU  
a
ADuC824  
FEATURES  
FUNCTIONAL BLOCK DIAGRAM  
High Resolution Sigma-Delta ADCs  
Two Independent ADCs (16- and 24-Bit Resolution)  
Programmable Gain Front End  
24-Bit No Missing Codes, Primary ADC  
13-Bit p-p Resolution @ 20 Hz, 20 mV Range  
18-Bit p-p Resolution @ 20 Hz, 2.56 V Range  
AVDD  
AVDD  
ADuC824  
AIN1  
AIN2  
PRIMARY  
24-BIT -ADC  
PGA  
BUF  
MUX  
CURRENT  
SOURCE  
MUX  
IEXC1  
IEXC2  
AGND  
AIN3  
AIN4  
AIN5  
Memory  
12-BIT  
VOLTAGE O/P  
DAC  
AUXILIARY  
16-BIT -ADC  
MUX  
8 KB On-Chip Flash/EE Program Memory  
640 Bytes On-Chip Flash/EE Data Memory  
Flash/EE, 100 Year Retention, 100 Kcycles Endurance  
256 Bytes On-Chip Data RAM  
DAC  
BUF  
8051-BASED MCU WITH ADDITIONAL  
PERIPHERALS  
TEMP  
SENSOR  
8 KBYTES FLASH/EE PROGRAM MEMORY  
640 BYTES FLASH/EE DATA MEMORY  
256 BYTES USER RAM  
8051-Based Core  
INTERNAL  
BANDGAP  
VREF  
PROG.  
CLOCK  
DIVIDER  
8051-Compatible Instruction Set (12.58 MHz Max)  
32 kHz External Crystal, On-Chip Programmable PLL  
Three 16-Bit Timer/Counters  
26 Programmable I/O Lines  
11 Interrupt Sources, Two Priority Levels  
Power  
ON-CHIP MONITORS  
POWER SUPPLY  
MONITOR  
3 16 BIT  
TIMER/COUNTERS  
1 TIME INTERVAL  
COUNTER  
WATCHDOG TIMER  
OSC  
AND  
PLL  
EXTERNAL  
VREF  
DETECT  
2
I C-COMPATIBLE  
UART AND SPI  
SERIAL I/O  
4PARALLEL  
PORTS  
REFIN– REFIN+ XTAL1 XTAL2  
Specified for 3 V and 5 V Operation  
Normal: 3 mA @ 3 V (Core CLK = 1.5 MHz)  
Power-Down: 20 A (32 kHz Crystal Running)  
On-Chip Peripherals  
On-Chip Temperature Sensor  
12-Bit Voltage Output DAC  
Dual Excitation Current Sources  
Reference Detect Circuit  
Time Interval Counter (TIC)  
low-level signals). The ADCs with on-chip digital filtering are  
intended for the measurement of wide dynamic range, low-frequency  
signals, such as those in weigh scale, strain-gauge, pressure trans-  
ducer, or temperature measurement applications. The ADC output  
data rates are programmable and the ADC output resolution will  
vary with the programmed gain and output rate.  
The device operates from a 32 kHz crystal with an on-chip PLL  
generating a high-frequency clock of 12.58 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 therefore 8051-instruction-  
set-compatible. The microcontroller core machine cycle consists  
of 12 core clock periods of the selected core operating frequency.  
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.  
UART Serial I/O  
I2C®-Compatible and SPI® Serial I/O  
Watchdog Timer (WDT), Power Supply Monitor (PSM)  
APPLICATIONS  
Intelligent Sensors (IEEE1451.2-Compatible)  
Weigh Scales  
Portable Instrumentation  
Pressure Transducers  
4–20 mA Transmitters  
The ADuC824 also incorporates additional analog functionality  
with a 12-bit DAC, current sources, power supply monitor,  
and a bandgap reference. On-chip digital peripherals include a  
watchdog timer, time interval counter, three timers/counters,  
and three serial I/O ports (SPI, UART, and I2C-compatible).  
GENERAL DESCRIPTION  
The ADuC824 is a complete smart transducer front-end, inte-  
grating two high-resolution sigma delta ADCs, an 8-bit MCU,  
and program/data Flash/EE Memory on a single chip. This low  
power device accepts low-level signals directly from a transducer.  
On-chip factory firmware supports in-circuit serial download and  
debug modes (via UART), as well as single-pin emulation mode  
via the EA pin. A functional block diagram of the ADuC824 is  
shown above with a more detailed block diagram shown in  
Figure 12.  
The two independent ADCs (Primary and Auxiliary) include a  
temperature sensor and a PGA (allowing direct measurement of  
MicroConverter is a registered trademark of Analog Devices, Inc.  
SPI is a registered trademark of Motorola, Inc.  
I2C is a registered trademark of Philips Semiconductors, Inc.  
The part operates from a single 3 V or 5 V supply. When operating  
from 3 V supplies, the power dissipation for the part is below  
10 mW. The ADuC824 is housed in a 52-lead MQFP package.  
REV.B  
Information furnished by Analog Devices is believed to be accurate and  
reliable. However, no responsibility is assumed by Analog Devices for its  
use, norforanyinfringementsofpatentsorotherrightsofthirdpartiesthat  
may result from its use. No license is granted by implication or otherwise  
under any patent or patent rights of Analog Devices.  
One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A.  
Tel: 781/329-4700  
Fax: 781/326-8703  
www.analog.com  
© Analog Devices, Inc., 2002  

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