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AS8267BLQS Datasheet(PDF) 7 Page - ams AG

Part # AS8267BLQS
Description  Single-Phase 2-Current Energy Measurement Integrated Circuits with Microcontroller, RTC, Programmable Multi-Purpose I/Os
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Manufacturer  AMSCO [ams AG]
Direct Link  http://www.ams.com
Logo AMSCO - ams AG

AS8267BLQS Datasheet(HTML) 7 Page - ams AG

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Data Sheet AS8267 / AS8268
Revision 1.0, 19-Jun-07
Page 7 of 136
Table of Contents
1.
Key Features .........................................................................................................................................1
2.
General Description ...............................................................................................................................1
3.
Typical Application Circuit ......................................................................................................................3
4.
Pin Out..................................................................................................................................................4
5.
Pin Description ......................................................................................................................................4
6.
Electrical Characteristics........................................................................................................................8
6.1
Absolute Maximum Ratings (Non-Operating) ......................................................................................8
6.2
Operating Conditions ........................................................................................................................8
6.3
DC/AC Characteristics for Digital Inputs and Outputs..........................................................................9
6.4
Electrical System Specification ........................................................................................................ 10
7.
Performance Graphs ............................................................................................................................ 12
8.
Detailed Functional Description ............................................................................................................ 15
8.1
Energy Measurement Front End (Including DSP) .............................................................................. 17
8.2
Temperature Sensor ....................................................................................................................... 50
8.3
LCD Driver (LCDD) ......................................................................................................................... 52
8.4
Programmable Multi-Purpose I/Os (MPIO) ........................................................................................ 57
8.5
Serial Peripheral Interface (SPI) ...................................................................................................... 67
8.6
External EEPROM Requirements ..................................................................................................... 78
8.7
FLASH Memory............................................................................................................................... 83
8.8
8051 Microcontroller (MCU) ............................................................................................................. 90
8.9
System Control (SCT) ................................................................................................................... 110
8.10 Serial Interface – UART1 ............................................................................................................... 118
9.
Circuit Diagram.................................................................................................................................. 127
10. Parts List........................................................................................................................................... 128
11. Packaging ......................................................................................................................................... 130
12. Product Ordering Guide ..................................................................................................................... 130
13. Collection of Formulae ....................................................................................................................... 131
14. Terminology ...................................................................................................................................... 135
15. Revision ............................................................................................................................................ 136
16. Copyright .......................................................................................................................................... 136
17. Disclaimer ......................................................................................................................................... 136
18. Contact ............................................................................................................................................. 136


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