EVAL-ADUC842QS1 datasheet, PDF

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EVAL-ADUC842QS1: Description8-BIT, FLASH, 16.78 MHz, MICROCONTROLLER, PQFP52; Categorysemiconductor The embedded processor and controller; File Size871KB，88 Pages; ManufacturerADI; Websitehttps://www.analog.com

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EVAL-ADUC842QS1 Overview

8-BIT, FLASH, 16.78 MHz, MICROCONTROLLER, PQFP52

EVAL-ADUC842QS1 Parametric

Parameter Name	Attribute value
Number of functions	1
Number of terminals	52
Maximum operating temperature	85 Cel
Minimum operating temperature	-40 Cel
Maximum supply/operating voltage	5.25 V
Minimum supply/operating voltage	4.75 V
Rated supply voltage	5 V
External data bus width	8
Number of input and output buses	32
Line speed	16.78 MHz
Processing package description	Plastic, MO-112 AC 1, MQFP-52
state	ACTIVE
Craftsmanship	CMOS
packaging shape	SQUARE
Package Size	FLATPACK
surface mount	Yes
Terminal form	GULL WING
Terminal spacing	0.6500 mm
terminal coating	MATTE Tin
Terminal location	Four
Packaging Materials	Plastic/Epoxy
Temperature level	INDUSTRIAL
ADC channel	Yes
Address bus width	24
Number of digits	8
Maximum FCLK clock frequency	0.0320 MHz
DAC channel	Yes
Microprocessor type	Microcontroller
PWM channel	Yes
ROM programming	FLASH

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MicroConverter

12-Bit ADCs and DACs with

Embedded High Speed 62-kB Flash MCU

ADuC841/ADuC842/ADuC843

FEATURES

Pin compatable ugrade 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 compatable 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

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

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

Development tools

Low cost, comprehensive development system

incorporating nonintrusive single-pin emulation,

IDE based assembly and C source debugging

FUNCTIONAL BLOCK DIAGRAM

ADuC841/ADuC842/ADuC843

12-BIT

DAC

BUF

DAC

ADC0

ADC1

T/H

12-BIT ADC

12-BIT

DAC

BUF

DAC

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

62 kBYTES FLASH/EE PROGRAM MEMORY

4 kBYTES FLASH/EE DATA MEMORY

2304 BYTES USER RAM

16 BIT TIMERS

REAL TIME CLOCK

OSC

PARALLEL

PORTS

POWER SUPPLY MON

WATCHDOG TIMER

UART, I

C, AND SPI

SERIAL I/O

03260-0-001

INTERNAL

BAND GAP

VREF

CREF

XTAL1

XTAL2

Figure 1.

GENERAL DESCRIPTION

The ADuC841/ADuC842/ADuC843 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.

(continued

on page 15)

APPLICATIONS

Optical networking—laser power control

Base station systems

Precision instrumentation, smart sensors

Transient capture systems

DAS and communications systems

ADuC841/ADuC842 only.

ADuC842/ADuC843 only, ADuC841 driven directly by external crystal.

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, 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

www.analog.com

Fax: 781.326.8703

ADuC841/ADuC842/ADuC843

TABLE OF CONTENTS

Specifications..................................................................................... 3

Absolute Maximum Ratings............................................................ 8

ESD Caution.................................................................................. 8

Pin Configurations and Functional Descriptions ........................ 9

Terminology .................................................................................... 11

ADC Specifications .................................................................... 11

DAC Specifications..................................................................... 11

Typical Performance Characteristics ........................................... 12

Functional Description .................................................................. 16

8052 Instruction Set ................................................................... 16

Other Single-Cycle Core Features ............................................ 18

Memory Organization ............................................................... 19

Special Function Registers (SFRs)............................................ 20

Accumulator SFR (ACC)........................................................... 21

Special Function Register Banks .............................................. 22

ADC Circuit Information.......................................................... 23

Calibrating the ADC .................................................................. 30

Nonvolatile Flash/EE Memory ................................................. 31

Using Flash/EE Data Memory .................................................. 34

User Interface to On-Chip Peripherals.................................... 38

On-Chip PLL............................................................................... 41

Pulse-Width Modulator (PWM).............................................. 42

Serial Peripheral Interface (SPI)............................................... 45

C Compatible Interface........................................................... 48

Dual Data Pointer....................................................................... 51

Power Supply Monitor ............................................................... 52

Watchdog Timer......................................................................... 53

Time Interval Counter (TIC).................................................... 54

8052 Compatible On-Chip Peripherals................................... 57

Timer/Counter 0 and 1 Operating Modes.............................. 62

Timer/Counter Operating Modes............................................ 64

UART Serial Interface................................................................ 65

SBUF ............................................................................................ 65

Interrupt System ......................................................................... 70

Hardware Design Considerations ............................................ 72

Other Hardware Considerations.............................................. 76

Development Tools .................................................................... 77

QuickStart Development System ............................................. 77

Timing Specifications

, ,

.................................................................. 78

Outline Dimensions ....................................................................... 86

Ordering Guides......................................................................... 87

REVISION HISTORY

Revision 0: Initial Version

Rev. 0 | Page 2 of 88

EVAL-ADUC842QS1 Related Products

	EVAL-ADUC842QS1	EVAL-ADUC841QS	EVAL-ADUC842QSP1	EVAL-ADUC842QSP2
Description	8-BIT, FLASH, 16.78 MHz, MICROCONTROLLER, PQFP52	8-BIT, FLASH, 16.78 MHz, MICROCONTROLLER, PQFP52	8-BIT, FLASH, 16.78 MHz, MICROCONTROLLER, PQFP52	8-BIT, FLASH, 16.78 MHz, MICROCONTROLLER, PQFP52
Number of functions	1	1	1	1
Number of terminals	52	52	52	52
Maximum operating temperature	85 Cel	85 Cel	85 Cel	85 Cel
Minimum operating temperature	-40 Cel	-40 Cel	-40 Cel	-40 Cel
Maximum supply/operating voltage	5.25 V	5.25 V	5.25 V	5.25 V
Minimum supply/operating voltage	4.75 V	4.75 V	4.75 V	4.75 V
Rated supply voltage	5 V	5 V	5 V	5 V
External data bus width	8	8	8	8
Number of input and output buses	32	32	32	32
Line speed	16.78 MHz	16.78 MHz	16.78 MHz	16.78 MHz
Processing package description	Plastic, MO-112 AC 1, MQFP-52	Plastic, MO-112 AC 1, MQFP-52	Plastic, MO-112 AC 1, MQFP-52	Plastic, MO-112 AC 1, MQFP-52
state	ACTIVE	ACTIVE	ACTIVE	ACTIVE
Craftsmanship	CMOS	CMOS	CMOS	CMOS
packaging shape	SQUARE	SQUARE	SQUARE	SQUARE
Package Size	FLATPACK	FLATPACK	FLATPACK	FLATPACK
surface mount	Yes	Yes	Yes	Yes
Terminal form	GULL WING	GULL WING	GULL WING	GULL WING
Terminal spacing	0.6500 mm	0.6500 mm	0.6500 mm	0.6500 mm
terminal coating	MATTE Tin	MATTE Tin	MATTE Tin	MATTE Tin
Terminal location	Four	Four	Four	Four
Packaging Materials	Plastic/Epoxy	Plastic/Epoxy	Plastic/Epoxy	Plastic/Epoxy
Temperature level	INDUSTRIAL	INDUSTRIAL	INDUSTRIAL	INDUSTRIAL
ADC channel	Yes	Yes	Yes	Yes
Address bus width	24	24	24	24
Number of digits	8	8	8	8
Maximum FCLK clock frequency	0.0320 MHz	0.0320 MHz	0.0320 MHz	0.0320 MHz
DAC channel	Yes	Yes	Yes	Yes
Microprocessor type	Microcontroller	Microcontroller	Microcontroller	Microcontroller
PWM channel	Yes	Yes	Yes	Yes
ROM programming	FLASH	FLASH	FLASH	FLASH

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