Epson RX-8581JE - Manual (Page 3)

RX - 8581 SA
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JE
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NB
Contents
1. Overview ...................................................................................................................1
2. Block Diagram ........................................................................................................1
3. Terminal description .............................................................................................2
3.1. Terminal connections ..............................................................................................................2
3.2. Pin Functions .............................................................................................................................2
4. Absolute Maximum Ratings
..............................................................................3
5. Recommended Operating Conditions
...........................................................3
6. Frequency Characteristics
.................................................................................3
7. Electrical Characteristics
....................................................................................3
7.1. DC characteristics .........................................................................................................................3
7.2. AC Characteristics ....................................................................................................................4
8. Use Methods ...........................................................................................................5
8.1. Overview of Functions .............................................................................................................5
8.2. Description of Registers .........................................................................................................6
8.3. Fixed-cycle Timer Interrupt Function ................................................................................13
8.4. Time Update Interrupt Function .........................................................................................16
8.5. Alarm Interrupt Function .......................................................................................................18
8.6. Reading/Writing Data via the I 2 C Bus Interface ...........................................................21
8.7. Backup and Recovery ...........................................................................................................25
8.8. Connection with Typical Microcontroller ..........................................................................25
9. External Dimensions / Marking Layout
........................................................26
10. Reference Data
.................................................................................................27
11. Application notes ..............................................................................................28
11.1. Notes on handling ................................................................................................................28
11.2. Notes on packaging .............................................................................................................28