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ADUC844BCP8-3

更新时间： 2024-11-29 22:39:27

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
20页	673K
描述
MicroConverter, Dual 16-Bit/24-Bit ADCs with Embedded 62kB FLASH MCU

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ADUC844BCP8-3 数据手册

PRELIMINARY TECHNICAL DATA

MicroConverter, Dual 16-Bit/24-Bit ADCs

with Embedded 62kB FLASH MCU

Preliminary Technical Data

ADuC844

FEATURES

FUNCTIONAL BLOCK DIAGRAM

High Resolution Sigma-Delta ADCs

Two Independent ADCs (24-Bit and 16-Bit Resolution)

24-Bit No Missing Codes, Primary ADC

21-Bit rms (18.5 Bit p-p) Effective Resolution @ 20 Hz

Offset Drift 10 nV/°C, Gain Drift 0.5 ppm/°C

Memory

62 Kbytes On-Chip Flash/EE Program Memory

4 Kbytes On-Chip Flash/EE Data Memory

Flash/EE, 100 Year Retention, 100 Kcycles Endurance

3 Levels of Flash/EE Program Memory Security

In-Circuit Serial Download (No External Hardware)

High Speed User Download (5 Seconds)

2304 Bytes On-Chip Data RAM

8051-Based Core

8051 Compatible Instruction Set

High Performance Single Cycle Core

32 kHz External Crystal

On-Chip Programmable PLL (12.58 MHz Max)

3 ´ 16-Bit Timer/Counter

26 Programmable I/O Lines

11 Interrupt Sources, Two Priority Levels

Dual Data Pointer, Extended 11-Bit Stack Pointer

On-Chip Peripherals

GENERAL DESCRIPTION

The ADuC844 is a complete smart transducer front end, integrating

two high resolution sigma-delta ADCs, an 8-bit MCU, and

program/data Flash/EE memory on a single chip.

Internal Power on Reset Circuit

12-Bit Voltage Output DAC

Dual 16-Bit S-D DACs/PWMs

On-Chip Temperature Sensor

The two independent ADCs (primary and auxiliary) include a

temperature sensor and a PGA (allowing direct measurement of low

level signals). The ADCs with on-chip digital filtering and

programmable output data rates are intended for the measurement of

wide dynamic range, low frequency signals, such as those in weigh

scale, strain-gage, pressure transducer, or temperature measurement

applications.

Dual Excitation Current Sources

Time Interval Counter (Wakeup/RTC Timer)

2 ®

UART, SPI , and I C Serial I/O

High Speed Baud Rate Generator (incl 115,200)

Watchdog Timer (WDT)

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 routed

through a programmable clock divider from which the MCU core

clock operating frequency is generated. The microcontroller core is an

optimized single cycle 8052 offering up to 12.58MIPs performance

while maintaining the 8051 instruction set compatibility.

Power Supply Monitor (PSM)

Power

Normal: 2.3mA Max @ 3.6 V (Core CLK = 1.57 MHz)

Power-Down: 20mA Max with Wakeup Timer Running

Specified for 3 V and 5 V Operation

Package and Temperature Range

62 Kbytes of nonvolatile Flash/EE program memory, 4 Kbytes of

nonvolatile Flash/EE data memory, and 2304 bytes of data RAM are

provided on-chip. The program memory can be configured as data

memory to give up to 60 Kbytes of NV data memory in data logging

applications.

52-Lead MQFP (14 mm ´ 14 mm), –40°C to +125°C

56-Lead CSP (8 mm ´ 8 mm), –40°C to +85°C

APPLICATIONS

Intelligent Sensors

WeighScales

Portable Instrumentation, Battery Powered Systems

4-20mA Transmitters

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 ADuC844 is supported by a QuickStart™

development system featuring low cost software and hardware

development tools.

Data Logging

Precision System Monitoring

REV. PrB

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. 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

Fax: 781/326-8703

www.analog.com

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与ADUC844BCP8-3相关器件

型号	品牌	获取价格	描述	数据表
ADUC844BCP8-5	ADI	获取价格	MicroConverter, Dual 16-Bit/24-Bit ADCs with Embedded 62kB FLASH MCU
ADUC844BS62-3	ADI	获取价格	MicroConverter, Dual 16-Bit/24-Bit ADCs with Embedded 62kB FLASH MCU
ADUC844BS62-5	ADI	获取价格	MicroConverter, Dual 16-Bit/24-Bit ADCs with Embedded 62kB FLASH MCU
ADUC845	ADI	获取价格	MicroConverter Multichannel 24-/16-Bit ADCs with Embedded 62 kB Flash and Single-Cycle MCU
ADUC845_12	ADI	获取价格	MicroConverterÂ® Multichannel 24-/16-Bit ADCs
ADUC845_15	ADI	获取价格	24-/16-Bit ADCs with Embedded 62 kB Flash and Single-Cycle MCU
ADUC845BCP62-3	ADI	获取价格	MicroConverter Multichannel 24-/16-Bit ADCs with Embedded 62 kB Flash and Single-Cycle MCU
ADUC845BCP62-5	ADI	获取价格	MicroConverter Multichannel 24-/16-Bit ADCs with Embedded 62 kB Flash and Single-Cycle MCU
ADUC845BCP8-3	ADI	获取价格	MicroConverter Multichannel 24-/16-Bit ADCs with Embedded 62 kB Flash and Single-Cycle MCU
ADUC845BCP8-5	ADI	获取价格	MicroConverter Multichannel 24-/16-Bit ADCs with Embedded 62 kB Flash and Single-Cycle MCU

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