LC88F58B0A Datasheet, PDF (19/25 Pages) Sanyo Semicon Device – FROM 128K byte, RAM 4096K byte on-chip 16-bit 1-chip Microcontroller

LC88F83B0A
AD Converter Characteristics at VSS = LCDVSS0 = LCDVSS1 = 0V
<12-bits AD Converter Mode/Ta= -10°C to +75°C>
Parameter
Symbol
Resolution
Absolute accuracy
Conversion time
N
ET
TCAD
Analog input
voltage range
Analog ports input
current
VAIN
IAINH
IAINL
Pin/Remarks
AN0(SEG71)
to
AN3(SEG68)
Conditions
(Note7-1)
See Conversion time calculation
formulas. (Note7-2)
VAIN=VDD
VAIN=VSS
VDD[V]
2.9 to 5.5
2.9 to 5.5
2.9 to 5.5
2.9 to 5.5
2.9 to 5.5
2.9 to 5.5
min
90
VSS
-1
Specification
typ
max
unit
12
bit
±16 LSB
130 μs
VDD
V
1
μA
<8-bits AD Converter Mode/Ta= -10°C to +75°C >
Parameter
Symbol
Pin/Remarks
Conditions
Resolution
Absolute accuracy
Conversion time
N
ET
TCAD
Analog input
voltage range
Analog ports input
current
VAIN
IAINH
IAINL
AN0(SEG71)
to
AN3(SEG68)
(Note7-1)
See Conversion time calculation
formulas. (Note7-2)
VAIN=VDD
VAIN=VSS
VDD[V]
2.9 to 5.5
2.9 to 5.5
2.9 to 5.5
2.9 to 5.5
2.9 to 5.5
2.9 to 5.5
min
55
Specification
typ
max
unit
8
bit
±1.5 LSB
75 μs
VSS
-1
VDD
V
1
μA
<Conversion Time Calculation Formulas>
12-bits AD Converter Mode: TCAD (Conversion time) = ((52/(Division ratio))+2) × tCYC
8-bits AD Converter Mode: TCAD (Conversion time) = ((32/(Division ratio))+2) × tCYC
<Recommended Operating Conditions>
External
Oscillator
FmCF[MHz]
Operating Supply
Voltage Range
VDD[V]
System Division
Ratio
(SYSDIV)
Cycle Time
tCYC [ns]
AD Division Ratio
(ADDIV)
AD Conversion Time (TCAD)[μs]
12-bit AD
8-bit AD
1/1
250
1/8
104.5
64.5
CF-4
2.9 to 4.0
1/2
500
1/4
105.0
65.0
Note 7-1: 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 7-2: 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 12-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 12-bit
conversion mode.
No.A1228-19/25