Renesas R8C series, Hardware Manual

Page: 218 / 257

R8C/18 Group, R8C/19 Group 18. Electrical Characteristics
Rev.1.30 Apr 14, 2006 Page 203 of 233
REJ09B0222-0130
NOTES:
1. V
CC
= 2.7 to 5.5 V at T
opr
= -20 to 85
°
C / -40 to 85
°
C, unless otherwise specified.
2. If f1 exceeds 10 MHz, divided f1 and ensure the comparator conversion operating clock frequency (
φ
AD
) is 10 MHz or below.
3. If AVcc is less than 4.2 V, divided f1 and ensure the comparator conversion operating clock frequency (
φ
AD
) is f1/2 or below.
Figure 18.1 Port P1, P3, and P4 Measurement Circuit
Table 18.3 Comparator Characteristics
Symbol Parameter Conditions
Standard
Unit
Min. Typ. Max.
−
Resolution
− −
1 Bit
−
Absolute accuracy
φ
AD
= 10 MHz
(3)
− −
±20 mV
t
conv
Conversion time
φ
AD
= 10 MHz
(3)
1
− − µ
s
V
ref
Reference voltage 0
−
AV
CC
V
V
IA
Analog input voltage 0
−
AV
CC
V
−
Comparator conversion operating clock
frequency
(2)
1
−
10 MHz
P1
P3
P4
30pF