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ADUC832BCPZ

更新时间: 2024-09-17 19:59:43
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80页 1252K
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ADUC832BCPZ

ADUC832BCPZ 数据手册

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®
MicroConverter, 12-Bit ADCs and DACs  
with Embedded 62 kBytes Flash MCU  
ADuC832  
FEATURES  
FUNCTIONAL BLOCK DIAGRAM  
ANALOG I/O  
8-Channel, 247 kSPS 12-Bit ADC  
DC Performance: 1 LSB INL  
12-BIT  
DAC  
ADuC832  
DAC  
DAC  
BUF  
BUF  
AC Performance: 71 dB SNR  
12-BIT  
DAC  
DMA Controller for High Speed ADC-to-RAM Capture  
2 12-Bit (Monotonic) Voltage Output DACs  
Dual Output PWM/-DACs  
On-Chip Temperature Sensor Function 3C  
On-Chip Voltage Reference  
ADC0  
ADC1  
T/H  
12-BIT ADC  
16-BIT  
DAC  
MUX  
ADC5  
16-BIT  
DAC  
ADC6  
ADC7  
PWM0  
PWM1  
HARDWARE  
CALIBRATON  
Memory  
MUX  
62 kBytes On-Chip Flash/EE Program Memory  
4 kBytes On-Chip Flash/EE Data Memory  
Flash/EE, 100 Yr Retention, 100 kCycles Endurance  
2304 Bytes On-Chip Data RAM  
8051-Based Core  
8051 Compatible Instruction Set (16 MHz Max)  
32 kHz Ext Crystal, On-Chip Programmable PLL  
12 Interrupt Sources, 2 Priority Levels  
Dual Data Pointer  
16-BIT  
PWM  
TEMP  
SENSOR  
16-BIT  
PWM  
8051-BASED MCU WITH ADDITIONAL  
PERIPHERALS  
62 kBYTES FLASH/EE PROGRAM MEMORY  
4 kBYTES FLASH/EE DATA MEMORY  
2304 BYTES USER RAM  
PLL  
3 16 BIT TIMERS  
POWER SUPPLY MON  
WATCHDOG TIMER  
1 REAL TIME CLOCK  
INTERNAL  
BAND GAP  
VREF  
Extended 11-Bit Stack Pointer  
On-Chip Peripherals  
OSC  
2
4PARALLEL  
PORTS  
UART,I C, AND SPI  
SERIAL I/O  
Time Interval Counter (TIC)  
V
XTAL1 XTAL2  
UART, I2C®, and SPI® Serial I/O  
Watchdog Timer (WDT), Power Supply Monitor (PSM)  
Power  
REF  
GENERAL DESCRIPTION  
The ADuC832 is a complete smart transducer front end, integrat-  
ing a high performance self-calibrating multichannel 12-bit ADC,  
dual 12-bit DACs, and programmable 8-bit MCU on a single chip.  
Specified for 3 V and 5 V Operation  
Normal, Idle, and Power-Down Modes  
Power-Down: 25 A @ 3 V with Wake-Up cct Running  
The device operates from a 32 kHz crystal with an on-chip PLL  
generating a high frequency clock of 16.77 MHz. This clock is, in  
turn, routed through a programmable clock divider from which  
the MCU core clock operating frequency is generated. The micro-  
controller core is an 8052 and therefore 8051 instruction set  
compatible with 12 core clock periods per machine cycle. 62 kBytes  
of nonvolatile Flash/EE program memory are provided on-chip.  
4 kBytes of nonvolatile Flash/EE data memory, 256 bytes RAM,  
and 2 kBytes of extended RAM are also integrated on-chip.  
The ADuC832 also incorporates additional analog functionality  
with two 12-bit DACs, power supply monitor, and a band gap  
reference. On-chip digital peripherals include two 16-bit -ꢁ  
DACs, dual output 16-bit PWM, watchdog timer, time interval  
counter, three timers/counters, Timer 3 for baud rate generation,  
and serial I/O ports (SPI, I2C, and UART)  
APPLICATIONS  
Optical Networking—Laser Power Control  
Base Station Systems  
Precision Instrumentation, Smart Sensors  
Transient Capture Systems  
DAS and Communications Systems  
Upgrade to ADuC812 Systems. Runs from 32 kHz  
External Crystal with On-Chip PLL.  
Also Available: ADuC831 Pin Compatible Upgrade to  
Existing ADuC812 Systems that Require Additional  
Code or Data Memory. Runs from 1 MHz–16 MHz  
External Crystal.  
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. The ADuC832 is supported by QuickStartand  
QuickStart Plus development systems featuring low cost software  
and hardware development tools. A functional block diagram of  
the ADuC832 is shown above with a more detailed block diagram  
shown in Figure 1.  
MicroConverter is a registered trademark and QuickStart is a trademark  
of Analog Devices, Inc.  
SPI is a registered trademark of Motorola, Inc.  
I2C is a registered trademark of Philips Corporation.  
The part is specified for 3 V and 5 V operation over the extended  
industrial temperature range and is available in a 52-lead plastic  
quad flatpack package and a 56-lead chip scale package.  
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, norforanyinfringementsofpatentsorotherrightsofthirdpartiesthat  
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: 781/326-8703 © Analog Devices, Inc., 2002. All rights reserved.  

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