FS98O21 datasheet(3/136 Pages) FORTUNE

3 / 136 page

FS98O21

Rev. 1.7

3/136

Contents

DEVICE OVERVIEW ................................................................................................................................ 10

1.1

High Performance RISC CPU ..................................................................................................... 10

1.2

Peripheral Features.....................................................................................................................10

1.3

Analog Features .......................................................................................................................... 10

1.4

Special Microcontroller Features...............................................................................................10

1.5

CMOS Technology ...................................................................................................................... 10

1.6

Applications ................................................................................................................................ 11

1.7

Ordering Information .................................................................................................................. 11

1.8

Pin Configuration ........................................................................................................................ 12

1.9

Pin Description............................................................................................................................ 13

1.10

Functional Block Diagram .......................................................................................................... 14

1.11

CPU Core ..................................................................................................................................... 16

1.12

Clocking Scheme/Instruction Cycle .......................................................................................... 18

ELECTRICAL CHARACTERISTICS ........................................................................................................ 19

2.1

Absolute Maximum Ratings ....................................................................................................... 19

2.2

DC Characteristics (VDD=3V, TA=25℃, unless otherwise noted)............................................19

2.3

ADC Characteristics (VDD=3V, TA=25℃, unless otherwise noted) .........................................20

2.4

OPAMP Characteristics (VDD=3V, TA=25℃, unless otherwise noted) ....................................20

MEMORY ORGANIZATION...................................................................................................................... 21

3.1

Program Memory Structure........................................................................................................ 21

3.2

Data Memory Structure............................................................................................................... 21

3.3

System Special Registers........................................................................................................... 22

3.3.1

Special Register Contents after External Reset (Power On Reset) and WDT Reset.. 22

3.3.2

IND and FSR Registers ...................................................................................................23

3.3.3

STATUS Register ............................................................................................................. 24

3.3.4

INTE and INTF registers..................................................................................................25

3.4

Peripheral Special Registers...................................................................................................... 27

POWER SYSTEM..................................................................................................................................... 28

4.1

Voltage Doubler ........................................................................................................................... 32

4.2

Voltage Regulator........................................................................................................................ 34

4.3

Analog Bias Circuit ..................................................................................................................... 35

4.4

Analog Common Voltage Generator..........................................................................................36

4.5

Low Battery Comparator ............................................................................................................ 37

4.6

Bandgap Voltage and Temperature Sensor .............................................................................. 38

FS98O21 Datasheet(PDF) 3 Page - Fortune Semiconductor Corp.

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