SN8P2711A
8-Bit Micro-Controller
SONiX TECHNOLOGY CO., LTD
Page 109
Version 0.1
9.7 ADC CONVERTING TIME
12-bit ADC conversion time = 1/(ADC clock /4)*16 sec
High Clock (Fosc) =
4MHz
Fcpu
ADCKS1 ADCKS0 ADC Clock
ADC Converting Time
0 0
Fcpu/16
1/( ( 4MHz /
1
) / 16 /4
)
x16=
256
us
0 1
Fcpu/8
1/( ( 4MHz /
1
) /
8
/4
)
x16=
128
us
1 0
Fcpu
1/( ( 4MHz /
1
) /
1
/4
)
x16=
16
us
Fosc/ 1
1 1
Fcpu/2
1/( ( 4MHz /
1
) /
2
/4
)
x16=
32
us
0 0
Fcpu/16
1/( ( 4MHz /
2
) / 16 /4
)
x16=
512
us
0 1
Fcpu/8
1/( ( 4MHz /
2
) /
8
/4
)
x16=
256
us
1 0
Fcpu
1/( ( 4MHz /
2
) /
1
/4
)
x16=
32
us
Fosc/ 2
1 1
Fcpu/2
1/( ( 4MHz /
2
) /
2
/4
)
x16=
64
us
0 0
Fcpu/16
1/( ( 4MHz /
4
) / 16 /4
)
x16=
1024 us
0 1
Fcpu/8
1/( ( 4MHz /
4
) /
8
/4
)
x16=
512
us
1 0
Fcpu
1/( ( 4MHz /
4
) /
1
/4
)
x16=
64
us
Fosc/ 4
1 1
Fcpu/2
1/( ( 4MHz /
4
) /
2
/4
)
x16=
128
us
0 0
Fcpu/16
1/( ( 4MHz /
8
) / 16 /4
)
x16=
2048 us
0 1
Fcpu/8
1/( ( 4MHz /
8
) /
8
/4
)
x16=
1024 us
1 0
Fcpu
1/( ( 4MHz /
8
) /
1
/4
)
x16=
128
us
Fosc/ 8
1 1
Fcpu/2
1/( ( 4MHz /
8
) /
2
/4
)
x16=
256
us
0 0
Fcpu/16
1/( ( 4MHz / 16 ) / 16 /4
)
x16=
4096 us
0 1
Fcpu/8
1/( ( 4MHz / 16 ) /
8
/4
)
x16=
2048 us
1 0
Fcpu
1/( ( 4MHz / 16 ) /
1
/4
)
x16=
256
us
Fosc/ 16
1 1
Fcpu/2
1/( ( 4MHz / 16 ) /
2
/4
)
x16=
512
us
