ADUC814_02 AD [Analog Devices], ADUC814_02 Datasheet

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ADUC814_02

Manufacturer Part Number
ADUC814_02
Description
MicroConverter, Small Package 12-Bit ADC with Embedded FLASH MCU
Manufacturer
AD [Analog Devices]
Datasheet
a
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. No license is granted by implication or otherwise
under any patent or patent rights of Analog Devices.
FEATURES
Analog I/O
Memory
8051 Based Core
Power
On-Chip Peripherals
Package and Temperature Range
APPLICATIONS
Optical Networking—Laser Power Control
Base Station Systems—Power Amplifier Bias Control
Precision Instruments and Smart Sensors
Battery-Powered Systems and General Precision
6-Channel 247 kSPS ADC
Dual-Voltage Output DACs
8 KBytes On-Chip Flash/EE Program Memory
640 Bytes On-Chip Flash/EE Data Memory
Flash/EE, 100-Year Retention, 100 K Cycles
Three Levels of Flash/EE Program Memory Security
In-Circuit Serial Download (No External Hardware
256 Bytes On-Chip Data RAM
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, Two Priority Levels
Specified for 3 V and 5 V Operation
Normal: 3 mA @ 3 V (Core CLK = 2.1 MHz)
Power-Down: 15 A at 3 V (32 kHz Running)
Power-On Reset Circuit (No Need for External
Temperature Monitor ( 1.5 C)
Precision Voltage Reference
Time Interval Counter (Wake-Up/RTC Timer)
UART Serial I/O
SPI
Watchdog Timer (WDT) and Power Supply
28-Lead TSSOP 4.4 mm
Fully Specified for –40 C to +125 C Operation
System Monitors
12-Bit Resolution
ADC High Speed Data Capture Mode
Programmable Reference via On-Chip DAC for Low
ADC Performance Down to V
12-Bit Resolution, 15 s Settling Time
Endurance
Required)
POR Device)
Monitor (PSM)
®
/I
2
Level Inputs
C
®
Compatible Serial I/O
9.7 mm Body Package
REF
of 0.1 V
12-Bit ADC with Embedded FLASH MCU
MicroConverter
CREF
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 therefore 8051-
instruction-set compatible. 8 Kbytes of nonvolatile Flash/EE
program memory are provided on-chip. 640 bytes of nonvolatile
Flash/EE data memory and 256 bytes of 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 factory firmware supports in-circuit serial download and
debug modes (via UART), as well as the single-pin emulation
mode via the DLOAD pin. The ADuC814 is supported by a
QuickStart
system, consisting of PC-based (Windows
and software development tools.
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.
MicroConverter is a registered trademark of Analog Devices, Inc.
SPI is a registered trademark of Motorola Inc.
I
QuickStart is a trademark of Analog Devices, Inc.
Windows is a registered trademark of Microsoft Corporation.
One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A.
Tel: 781/329-4700
Fax: 781/326-8703
VREF
AIN0
AIN5
2
C is a registered trademark of Phillips Corporation.
MUX
AIN
BUF
MONITOR
TEMP
BAND GAP
INTERNAL
VREF
T/H
development system. This is a full featured low cost
FUNCTIONAL BLOCK DIAGRAM
XTAL1
12-BIT
DIVIDER
POWER-
ADC
CLOCK
RESET
PROG.
OSC
AND
PLL
ON
XTAL2
ADuC814
CONTROL
LOGIC
ADC
®
10
8 KBYTES FLASH/EE PROGRAM MEMORY
TIMER/COUNTERS
1
, Small Package
640 BYTES FLASH/EE DATA MEMORY
8051-BASED MCU WITH ADDITIONAL
DIGITAL I/O PINS
3
WAKE-UP/RTC
TIMER
16-BIT
256 BYTES USER RAM
© Analog Devices, Inc., 2002
PERIPHERALS
CONTROL
®
LOGIC
ADuC814
DAC
compatible) hardware
ON-CHIP MONITORS
WATCHDOG TIMER
POWER SUPPLY
UART AND SPI
SERIAL I/O
MONITOR
www.analog.com
DAC0
DAC1
BUF
BUF
DAC0
DAC1

Related parts for ADUC814_02

ADUC814_02 Summary of contents

Page 1

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 Down to V Dual-Voltage Output DACs 12-Bit Resolution Settling Time Memory ...

Page 2

ADuC814–SPECIFICATIONS XTAL1/XTAL2 = 32.768 kHz Crystal. All specifications T Parameter ADC CHANNEL SPECIFICATIONS A GRADE ACCURACY Resolution Integral Nonlinearity Differential Nonlinearity Integral Nonlinearity Differential Nonlinearity CALIBRATED ENDPOINT ERRORS Offset Error Offset Error Match Gain Error Gain Error ...

Page 3

Parameter DAC CHANNEL SPECIFICATIONS 9 DC ACCURACY Resolution Relative Accuracy 10 Differential Nonlinearity Offset Error Gain Error Gain Error Mismatch ANALOG OUTPUTS Voltage Range_0 Voltage Range_1 Output Impedance I SINK DAC AC SPECIFICATIONS Voltage Output Settling Time Digital-to-Analog Glitch Energy ...

Page 4

ADuC814 SPECIFICATIONS (continued) Parameter 13 SCLOCK and RESET Only (Schmitt-Triggered Inputs T– V – T– INPUT CURRENTS P1.2–P1.7, DLOAD 14 SCLOCK RESET P1.0, P1.1, Port 3 (includes MISO, MOSI/SDATA, and SS) INPUT CAPACITANCE CRYSTAL OSCILLATOR ...

Page 5

Parameter START-UP TIME (continued) 15 Oscillator Powered Down 2 Wake-Up with SPI/I C Interrupt Wake-Up with TIC Interrupt Wake-Up with External RESET After External RESET in Normal Mode After WDT Reset in Normal Mode FLASH/EE MEMORY RELIABILITY 16 CHARACTERISTICS 17 ...

Page 6

ADuC814 SPECIFICATIONS (continued) NOTES 1 Temperature range –40ºC to +125ºC. 2 ADC linearity is guaranteed when operating in nonpipelined mode, i.e., ADC conversion followed sequentially by a read of the ADC result. ADC linearity is also guaranteed during normal MicroConverter ...

Page 7

TIMING SPECIFICATIONS Parameter CLOCK INPUT (External Clock Driven XTAL1) t XTAL1 Period CK t XTAL1 Width Low CKL t XTAL1 Width High CKH t XTAL1 Rise Time CKR t XTAL1 Fall Time CKF 1/t ADuC814 Core Clock ...

Page 8

ADuC814 TIMING SPECIFICATIONS (continued) Parameter UART TIMING (Shift Register Mode) t Serial Port Clock Cycle Time XLXL t Output Data Setup to Clock QVXH t Input Data Setup to Clock DVXH t Input Data Hold after Clock XHDX t Output ...

Page 9

Parameter SPI MASTER MODE TIMING (CPHA = 1) t SCLOCK Low Pulsewidth SL t SCLOCK High Pulsewidth SH t Data Output Valid after SCLOCK Edge DAV t Data Input Setup Time before SCLOCK Edge DSU t Data Input Hold Time ...

Page 10

ADuC814 TIMING SPECIFICATIONS (continued) Parameter SPI MASTER MODE TIMING (CPHA = 0) t SCLOCK Low Pulsewidth SL t SCLOCK High Pulsewidth SH t Data Output Valid after SCLOCK Edge DAV t Data Output Setup before SCLOCK Edge DOSU t Data ...

Page 11

Parameter SPI SLAVE MODE TIMING (CPHA = SCLOCK Edge SCLOCK Low Pulsewidth SL t SCLOCK High Pulsewidth SH t Data Output Valid after SCLOCK Edge DAV t Data Input Setup Time before SCLOCK Edge ...

Page 12

ADuC814 Parameter SPI SLAVE MODE TIMING (CPHA = SCLOCK Edge SCLOCK Low Pulsewidth SL t SCLOCK High Pulsewidth SH t Data Output Valid after SCLOCK Edge DAV t Data Input Setup Time before SCLOCK ...

Page 13

ABSOLUTE MAXIMUM RATINGS (T = 25°C, unless otherwise noted AGND . . . . . . . . . . . . . . . . . . . . . . . –0 ...

Page 14

ADuC814 Pin No. Mnemonic Type* 1 DGND S 2 DLOAD I 3-7 P3.0–P3.4 I/O 3 P3.0/RXD I/O 4 P3.1/TXD I/O 5 P3.2/INT0 I/O 6 P3.3/INT1 I/O 7 P3.4/T0/CONVST I/O 8-9 P1.0–P1.1 I/O 8 P1.0/T2 I/O 9 P1.1/T2EX I/O 10 RESET ...

Page 15

Pin No. Mnemonic Type* 16 VREF I/O 17 CREF I 18-21 P1.4–P1 P1.4/ADC2 I 19 P1.5/ADC3 I 20 P1.6/ADC4/DAC0 I/O 21 P1.7/ADC5/DAC1 I/O 22-24 P3.5–P3.7 I/O 22 P3.5/T1 I/O 22 P3.5/SS/EXTCLK I/O 23 P3.6/MISO I/O 24 P3.7/MOSI I/O ...

Page 16

ADuC814 PIN 1 0.15 (0.006) 0.05 (0.002) SEATING PLANE CONTROLLING DIMENSIONS ARE IN MILLIMETERS; INCH DIMENSIONS (IN PARENTHESES) ARE ROUNDED-OFF MILLIMETER EQUIVALENTS FOR REFERENCE ONLY AND ARE NOT APPROPRIATE FOR USE IN DESIGN OUTLINE DIMENSIONS 28-Lead TSSOP Package (RU-28) Dimensions ...

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