FS9912

Rev. 3.6

3/34

Contents

1

GENERAL DESCRIPTION ........................................................................................................................... 5

2

FEATURES ................................................................................................................................................... 5

3

APPLICATIONS ............................................................................................................................................ 5

4

ORDERING INFORMATION ......................................................................................................................... 5

5

PIN CONFIGURATION ................................................................................................................................. 6

6

PIN DESCRIPTION....................................................................................................................................... 7

7

FUNCTIONAL BLOCK DIAGRAM ............................................................................................................... 8

8

TYPICAL APPLICATION CIRCUIT............................................................................................................... 9

8.1

Application Circuit of Ear Thermometer......................................................................................... 9

8.2

Application Circuit of Scale (Load Cell) ....................................................................................... 10

8.3

Reference Circuit of AC To DC Converter .................................................................................... 10

9

ABSOLUTE MAXIMUM RATINGS ............................................................................................................. 11

10

ELECTRICAL CHARACTERISTICS......................................................................................................... 11

10.1

DC Characteristic (Unless otherwise specified VDD=3V，Ta=25℃) ........................................ 11

10.2 ADC Characteristic (Unless otherwise specified VDD=3V，Ta=25℃) ........................................ 11

10.3 OPAMP Characteristic (Unless otherwise specified VDD=3V，Ta=25℃) ................................... 12

10.4 Typical Performance Characteristics ............................................................................................ 13

11

UNCTION DESCRIPTION ........................................................................................................................ 14

11.1

CPU Core....................................................................................................................................... 14

11.1.1

CPU Core Block Diagram ..............................................................................................14

11.1.2 Program Memory Organization .......................................................................................14

11.1.3

Data Memory Organization ...........................................................................................15

11.1.4 System Special Register Description ............................................................................15

11.1.5 Instruction Set ................................................................................................................. 16

11.1.6 Instruction Description ................................................................................................... 17

11.2

Power System ............................................................................................................................... 22

11.3

I/O Port........................................................................................................................................... 22

11.3.1

I/O Port1(PT1)................................................................................................................. 22

11.3.2

I/O Port2 (PT2) .............................................................................................................. 23

11.4

8 Bits Timer ................................................................................................................................... 24

11.5

Dual 24 Bit Programmable Counter ............................................................................................ 24

11.6

Measurement Part Block Diagram .............................................................................................. 26

11.7

ADC................................................................................................................................................ 26

11.8

Analog Multiplex........................................................................................................................... 27

11.9

Low Noise OPAMP........................................................................................................................ 27

11.10

LCD Driver................................................................................................................................... 27