LC87F0N04A

No.A2055-13/19

AD Converter Characteristics

at VSS1 = 0V

<10bits AD Converter Mode/Ta = -40

C to +85C >

Parameter

Symbol

Pin/Remarks

Conditions

Specification

VDD[V]

min

typ

max

unit

Resolution

N

AN0(P10) to

AN3(P13)

AN4(P16)

AN5(P17)

2.8 to 5.5

10

bit

Absolute

accuracy

ET

(Note 6-1)

2.8 to 5.5

4

LSB

Conversion time

TCAD

 See Conversion time calculation

formulas. (Note 6-2)

4.0 to 5.5

7.8

65.6

s

2.8 to 5.5

15

65.6

Analog input

voltage range

VAIN

2.8 to 5.5

VSS

VDD

V

Analog port

input current

IAINH

VAIN=VDD

2.8 to 5.5

1

A

IAINL

VAIN=VSS

2.8 to 5.5

-1

<8bits AD Converter Mode/Ta = -40

C to +85C >

Parameter

Symbol

Pin/Remarks

Conditions

Specification

VDD[V]

min

typ

max

unit

Resolution

N

AN0(P10) to

AN3(P13)

AN4(P16)

AN5(P17)

2.8 to 5.5

8

bit

Absolute

accuracy

ET

(Note 6-1)

2.8 to 5.5

1.5

LSB

Conversion time

TCAD

 See Conversion time calculation

formulas. (Note 6-2)

4.0 to 5.5

2.85

25.0

s

2.8 to 5.5

5.5

25.0

Analog input

voltage range

VAIN

2.8 to 5.5

VSS

VDD

V

Analog port

input current

IAINH

VAIN=VDD

2.8 to 5.5

1

A

IAINL

VAIN=VSS

2.8 to 5.5

-1

Conversion time calculation formulas:

10bits AD Converter Mode: TCAD(Conversion time) = ((40/(AD division ratio))+2)

(1/3)tCYC

8bits AD Converter Mode: TCAD(Conversion time) = ((28/(AD division ratio))+2)

(1/3)tCYC

External

oscillation

(FmMRC)

Operating supply

voltage range

(VDD)

System division ratio

(SYSDIV)

Cycle time

(tCYC)

AD division ratio

(ADDIV)

AD conversion time

(TCAD)

10bit AD

8bit AD

10bit AD

8bit AD

10MHz

4.0V to 5.5V

1/1

300ns

1/2

1/1

8.5

s

2.9

s

2.8V to 5.5V

1/1

300ns

1/4

1/2

17

s

5.8

s

Note 6-1: The quantization error (±1/2LSB) must be excluded from the absolute accuracy. The absolute accuracy must

be measured in the microcontroller's state in which no I/O operations occur at the pins adjacent to the analog

input channel.

Note 6-2: The conversion time refers to the period from the time an instruction for starting a conversion process till the

time the conversion results register(s) are loaded with a complete digital conversion value corresponding to

the analog input value.

The conversion time is 2 times the normal-time conversion time when:

The first AD conversion is performed in the 10-bit AD conversion mode after a system reset.

The first AD conversion is performed after the AD conversion mode is switched from 8-bit to 10-bit

conversion mode.