Datasheet

R8C/M11A Group, R8C/M12A Group 4. Electrical Characteristics
R01DS0010EJ0200 Rev.2.00 Page 26 of 45
May 31, 2012
Notes:
1. Vcc/AVcc = 1.8 V to 5.5 V and Vss = 0 V and Topr = -20
°C to 85 °C (N version)/-40 °C to 85 °C (D version), unless otherwise
specified.
2. The A/D conversion result will be undefined in stop mode, or when the flash memory is in low-current-consumption read mode
or stopped. Do not perform A/D conversion in these states. Do not enter these states during A/D conversion.
Notes:
1. Vcc = 2.7 V to 5.5 V and Topr = -20
°C to 85 °C (N version)/-40 °C to 85 °C (D version), unless otherwise specified.
2. When the digital filter is disabled.
Table 4.3 A/D Converter Characteristics
Symbol Parameter Condition
Standard
Unit
Min. Typ. Max.
— Resolution — — 10 Bit
— Absolute accuracy AVcc = 5.0 V AN0 to AN4, AN7 input — — ±3 LSB
AVcc = 3.0 V AN0 to AN4, AN7 input — — ±5 LSB
AVcc = 1.8 V AN0 to AN4, AN7 input — — ±5 LSB
— A/D conversion clock
4.0 V
≤ AVcc ≤ 5.5 V
(2)
2—20MHz
3.2 V
≤ AVcc ≤ 5.5 V
(2)
2—16MHz
2.7 V
≤ AVcc ≤ 5.5 V
(2)
2—10MHz
1.8 V
≤ AVcc ≤ 5.5 V
(2)
2—5MHz
— Permissible signal source
impedance
3k
Ω
tCONV Conversion time AVcc = 5.0 V, A/D conversion clock = 20 MHz 2.20 — — µs
t
SAMP Sampling time A/D conversion clock = 20 MHz 0.80 — — µs
V
IA Analog input voltage 0 — AVcc V
Table 4.4 Comparator B Electrical Characteristics
Symbol Parameter Condition
Standard
Unit
Min. Typ. Max.
V
ref IVREF1, IVREF3 input reference voltage 0 — Vcc - 1.4 V
V
I IVCMP1, IVCMP3 input voltage -0.3 — Vcc + 0.3 V
—Offset — 5 100 mV
t
d
Comparator output delay time
(2)
VI = Vref ± 100 mV — 0.1 — µs
I
CMP Comparator operating current Vcc = 5.0 V — 17.5 — µA