Datasheet

FS98O22
Rev. 1.6 13/146
1.9. Pin Description
Table 1-2 FS98O22 pin description
Name In/Out Pin No Description
VPP P 5 Programming Power Supply
OP1O I/O 7 OPAMP 1 Output
REFO O 8 Band gap Reference Output
FTB, FTC I/O 9, 10 ADC Pre-Filter Capacitor Connection
VB I 11 Analog Circuit Bias Current Input
AGND I/O 12 Analog Ground
PT1<0~7>/AIN0~7 I/O 13~20 Digital I/O Port or Analog input channel
PT2<0~1>/INT0~1,
PT3<0~1>/INT2~3
I/O
21~22
39~40
Digital I/O Port and External Interrupt input
PT2<2,5>/PDM1,2 I/O 23,36 Digital I/O Port or PDM output
PT2<3>/SDA I/O 24 Digital I/O Port or I2C serial Bi-Directional data line
PT2<4>/SCL I/O 25 Digital I/O Port or I2C clock input
PT2<7>/BZ I/O 38 Digital I/O Port or Buzzer Output
PT3<2>/PFI I/O 41 Digital I/O Port or Programmable Frequency Input
PT3<3>/PFO I/O 42 Digital I/O Port or Programmable Frequency Output
PT2<6>,
PT3<4~7>
I/O
37
43~46
Digital I/O Port
SEG20~SEG1 O 51~70 LCD Segment Driver Output
COM4~COM1 O 71~74 LCD Common Driver Output
LCA I/O 83 LCD Charge Pump Capacitor Positive Connection
LCB I/O 84 LCD Charge Pump Capacitor Negative Connection
V3,V2,V1 P 85~87 LCD Bias
VDDA P 88 Analog Power Output
VS P 89 Voltage Source from VDDA
VGG P 90 Charge Pump Voltage
VSSP P 91 Charge Pump Negative Power Supply
CB I/O 92 Charge Pump Capacitor Negative Connection
CA I/O 93 Charge Pump Capacitor Positive Connection
VDDP P 94 Charge Pump Positive Power Supply
VDD P 95 Positive Power Supply
VSS P 96 Negative Power Supply (Ground)
XOUT O 97 32768Hz Oscillator Output
XIN I 98 32768Hz Oscillator Input
TST I 99 Testing Mode
RST I 100 CPU Reset
NC - - No Connection
FORTUNE'
Properties
For Reference Only