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ADUC842BSZ62-5

Description
ICMCU8BIT62KBFLASH52MQFP
CategoryThe embedded processor and controller    ADI (,)   
File Size1MB,95 Pages
ManufacturerADI
Websitehttps://www.analog.com
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ADUC842BSZ62-5 Overview

ICMCU8BIT62KBFLASH52MQFP

MicroConverter 12-Bit ADCs and DACs with
Embedded High Speed 62 kB Flash MCU
Data Sheet
FEATURES
Pin compatible upgrade 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-compatible 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 DACs
1
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, I
2
C®, 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 µA @ 3 V
2
Development tools
Low cost, comprehensive development system
incorporating nonintrusive single-pin emulation,
IDE based assembly and C source debugging
ADuC841/ADuC842/ADuC843
FUNCTIONAL BLOCK DIAGRAM
ADuC841/ADuC842/ADuC843
12-BIT
DAC
BUF
DAC
1
ADC0
ADC1
T/H
12-BIT ADC
12-BIT
DAC
BUF
DAC
1
MUX
ADC5
ADC6
ADC7
HARDWARE
CALIBRATON
TEMP
SENSOR
16-BIT
Σ-∆
DAC
16-BIT
Σ-∆
DAC
MUX
16-BIT
PWM
PWM1
PWM0
16-BIT
PWM
20 MIPS 8052 BASED MCU WITH ADDITIONAL
PERIPHERALS
PLL
2
62 kBYTES FLASH/EE PROGRAM MEMORY
4 kBYTES FLASH/EE DATA MEMORY
2304 BYTES USER RAM
3
×
16 BIT TIMERS
1
×
REAL TIME CLOCK
OSC
4
×
PARALLEL
PORTS
POWER SUPPLY MON
WATCHDOG TIMER
UART, I
2
C, AND SPI
SERIAL I/O
03260-0-001
INTERNAL
BAND GAP
VREF
CREF
XTAL1
XTAL2
Figure 1.
GENERAL DESCRIPTION
The
ADuC841/ADuC842/ADuC843
1
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.
1
APPLICATIONS
Optical networking—laser power control
Base station systems
Precision instrumentation, smart sensors
Transient capture systems
DAS and communications systems
ADuC841/ADuC842
only.
2
ADuC842/ADuC843
only,
ADuC841
driven directly by external crystal.
Rev. B
Document Feedback
1
Protected by U.S. Patent No. 5,969,657.
(continued
on page 23)
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 ©2003–2017 Analog Devices, Inc. All rights reserved.
Technical Support
www.analog.com

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