RTC - 8564 JE/NB
CONTENTS
1. Overview ...................................................................................................................... 1
2. Block diagram .............................................................................................................. 1
3. Terminal description ..................................................................................................... 2
3.1. Terminal connections....................................................................................................................... 2
3.2. Terminal functions ........................................................................................................................... 2
4. Absolute maximum ratings ........................................................................................... 3
5. Recommended operating conditions ............................................................................ 3
6. Frequency characteristics ............................................................................................ 3
7. Electrical characteristics............................................................................................... 3
7.1. DC electrical characteristics ............................................................................................................ 3
7.2. AC electrical characteristics............................................................................................................. 4
8. How to use ................................................................................................................... 5
8.1. Register table................................................................................................................................... 5
8.2. Register description ......................................................................................................................... 5
8.2.1. Control register 1 ............................................................................................................... 5
8.2.2. Control register 2 ............................................................................................................... 6
8.2.3. Clock and calendar registers, and VL bit and century bit .................................................. 6
8.2.4. Alarm registers .................................................................................................................. 7
8.2.5. CLKOUT frequency selection and timer registers ............................................................. 7
8.3. Access procedure ............................................................................................................................ 8
8.3.1. Characteristic of the I
2
C-BUS ............................................................................................ 8
8.3.2. Bit transfer ......................................................................................................................... 8
8.3.3. Start condition and stop condition ..................................................................................... 8
8.3.4. Slave address .................................................................................................................... 8
8.3.5. System structure................................................................................................................ 9
8.3.6. Acknowledge ..................................................................................................................... 9
8.3.7. I
2
C-BUS protocol ............................................................................................................. 10
8.4. Typical connection to micro computers ......................................................................................... 11
9. External dimensions / Marking layout ......................................................................... 12
9.1. External dimensions....................................................................................................................... 12
9.2. Marking layout................................................................................................................................ 12
10. Reference data......................................................................................................... 13
11. Application notes ...................................................................................................... 14
11.1. Notes on handling ........................................................................................................................ 14
11.2. Notes on packaging ..................................................................................................................... 14
