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ADUC846BCP62-5 Datasheet(PDF) 1 Page - Analog Devices |
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ADUC846BCP62-5 Datasheet(HTML) 1 Page - Analog Devices |
1 / 20 page a MicroConverter, Dual 16-Bit ADCs with Embedded 62kB FLASH MCU Preliminary Technical Data ADuC846 PRELIMINARY TECHNICAL DATA REV. PrA 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 One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A. Tel: 781/329-4700 www.analog.com FEATURES High Resolution Sigma-Delta ADCs Two Independent ADCs (16-Bit Resolution) 16-Bit No Missing Codes 16-Bit rms (16 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 Internal Power on Reset Circuit 12-Bit Voltage Output DAC Dual 16-Bit S-D DACs/PWMs On-Chip Temperature Sensor Dual Excitation Current Sources Time Interval Counter (Wakeup/RTC Timer) UART, SPI®, and I2C® Serial I/O High Speed Baud Rate Generator (incl 115,200) Watchdog Timer (WDT) Power Supply Monitor (PSM) Power Normal: 2.3mA Max @ 3.6 V (Core CLK = 1.57 MHz) Power-Down: 20 µA Max with Wakeup Timer Running Specified for 3 V and 5 V Operation Package and Temperature Range 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 Data Logging Precision System Monitoring FUNCTIONAL BLOCK DIAGRAM GENERAL DESCRIPTION The ADuC846 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. 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. 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. 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. 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 ADuC846 is supported by a QuickStart™ development system featuring low cost software and hardware development tools. of Analog Devices. Trademarks and registered trademarks are the property of their respective companies. Fax: 781/326-8703 © 2003 Analog Devices, Inc. All rights reserved. |
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