4513_03 Datasheet, PDF (60/210 Pages) Renesas Technology Corp – 4-BIT SINGLE-CHIP MICROCOMPUTER

HARDWARE
FUNCTION BLOCK OPERATIONS
VOLTAGE COMPARATOR
The 4513/4514 Group has 2 voltage comparator circuits that
perform comparison of voltage between 2 pins. Table 17 shows
the characteristics of this voltage comparison.
Table 17 Voltage comparator characteristics
Parameter
Characteristics
Voltage comparator function 2 circuits (CMP0, CMP1)
Input pin
CMP0-, CMP0+
(also used as AIN0, AIN1)
CMP1-, CMP1+
(also used as AIN2, AIN3)
Supply voltage
3.0 V to 5.5 V
Input voltage
0.3 VDD to 0.7 VDD
Comparison check error
Typ. 20 mV, Max.100 mV
Response time
Max. 20 µs
CMP0–/AIN0
CMP0+/AIN1
–
CMP0
+
CMP1–/AIN2
CMP1+/AIN3
–
CMP1
+
Q33 Q32 Q31 Q30 Voltage comparator control register Q3 (4)
TQ3A
TAQ3
Register A (4)
Note: Bits 0 and 1 of register Q3 can be only read.
Fig. 31 Voltage comparator structure
4513/4514 Group User’s Manual
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