RX21A_15 Datasheet, PDF (114/132 Pages) Renesas Technology Corp – Renesas MCUs

RX21A Group
5.9 Comparator Characteristics
5. Electrical Characteristics
Table 5.43 Comparator Characteristics
Conditions: VCC = AVCC0 = AVCCA =1.8 to 3.6 V, VSS = AVSS0 = AVSSA = VREFL = VREFL0 = VREFDSL = 0 V,
T_a = –40 to +105°C
Item
Symbol
Min.
Typ.
Max.
Unit
Test Conditions
Comparator A External reference voltage input LVREF
1.4
―
VCC
V
range
External comparison voltage
VI
–0.3
―
VCC + 0.3 V
(CMPA1, CMPA2) input range
Offset
―
―
±50
±150
mV
Comparator output delay time*¹
―
―
3
―
µs At falling edge
VI = LVREF – 110 mV
―
2
―
µs At falling edge
VI < LVREF – 1 V
―
3
―
µs At rising edge
VI = LVREF + 160 mV
―
1.5
―
µs At rising edge
VI > LVREF + 1 V
Comparator operating current
ICMPA
―
0.5
―
µA VCC = 3.3 V
Comparator B
Input reference voltage for
CVREFB0, CVREFB1
VREF
0
―
VCC – 1.4 V
Input voltage for CMPB0,
CMPB1
VI
–0.3
―
VCC + 0.3 V
Offset
―
―
±10
±100
mV
Comparator output delay time
t_d
―
―
1
µs _{VI = VREF + 100 mV}
Comparator operating current
ICMPB
―
75
150
µA VCC = 3.3 V
For total two channels
Note 1. When the digital filter is disabled.
R01DS0129EJ0110 Rev.1.10
Aug 28, 2014
Page 114 of 132