FS98O251 datasheet(13/142 Pages) FORTUNE

13 / 142 page

FS98O25

Rev. 1.6

13/142

1.9.

Pin Description

Table 1-2 FS98O25 pin description

Name

In/Out

Pin No

Description

VPP

Programming Power Supply

OP2O

I/O

OPAMP 2 Output

OP1O

I/O

OPAMP 1 Output

REFO

Band gap Reference Output

FTB, FTC

I/O

7, 8

ADC Pre-Filter Capacitor Connection

Analog Circuit Bias Current Input

AGND

I/O

Analog Ground

PT1<0~7>/AIN0~7

I/O

11~18

Digital I/O Port or Analog input channel

PT2<0~1>/INT0~1,

PT3<0~1>/INT2~3

I/O

19~20

34~35

Digital I/O Port and External Interrupt input

PT2<2,5>/PDM1,2

I/O

21,24

Digital I/O Port or PDM output

PT2<3>/SDA

I/O

Digital I/O Port or I2C serial Bi-Directional data line

PT2<4>/SCL

I/O

Digital I/O Port or I2C clock input

PT2<7>/BZ

I/O

Digital I/O Port or Buzzer Output

PT3<2>/PFI

I/O

Digital I/O Port or Programmable Frequency Input

PT3<3>/PFO

I/O

Digital I/O Port or Programmable Frequency Output

PT2<6>

I/O

Digital I/O Port

SEG32~SEG1

54~74

38~48

LCD Segment Driver Output

COM4~COM1

75~78

LCD Common Driver Output

LCA

I/O

LCD Charge Pump Capacitor Positive Connection

LCB

I/O

LCD Charge Pump Capacitor Negative Connection

V3,V2,V1

I/O

84~86

LCD Bias

VDDA

I/O

Analog Power Output

I/O

Voltage Source from VDDA

VGG

I/O

Charge Pump Voltage

No Connection

VSSP

Charge Pump Negative Power Supply

I/O

Charge Pump Capacitor Negative Connection

I/O

Charge Pump Capacitor Positive Connection

VDDP

Charge Pump Positive Power Supply

VDD

Positive Power Supply

VSS

Negative Power Supply (Ground)

XOUT

32768Hz Oscillator Output

XIN

32768Hz Oscillator Input

TST

Testing Mode

RST

100

CPU Reset

FS98O251 Datasheet(PDF) 13 Page - Fortune Semiconductor Corp.

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