R8C2K Datasheet, PDF (421/471 Pages) Renesas Technology Corp – MCU

R8C/2K Group, R8C/2L Group
22. Electrical Characteristics
Table 22.3 A/D Converter Characteristics
Symbol
−
−
Rladder
tconv
Vref
VIA
−
Parameter
Conditions
Resolution
Absolute
accuracy
10-bit mode
8-bit mode
10-bit mode
8-bit mode
Resistor ladder
Conversion time 10-bit mode
8-bit mode
Reference voltage
Analog input voltage⁽²⁾
A/D operating Without sample and hold
clock frequency _{With sample and hold}
Vref = AVCC
φAD = 10 MHz, Vref = AVCC = 5.0 V
φAD = 10 MHz, Vref = AVCC = 5.0 V
φAD = 10 MHz, Vref = AVCC = 3.3 V
φAD = 10 MHz, Vref = AVCC = 3.3 V
Vref = AVCC
φAD = 10 MHz, Vref = AVCC = 5.0 V
φAD = 10 MHz, Vref = AVCC = 5.0 V
Vref = AVCC = 2.7 to 5.5 V
Vref = AVCC = 2.7 to 5.5 V
Standard
Min. Typ. Max.
−
−
10
−
−
±3
−
−
±2
−
−
±5
−
−
±2
10
−
40
3.3
−
−
2.8
−
−
2.2
−
AVCC
0
−
AVCC
0.25 −
10
1
−
10
Unit
Bits
LSB
LSB
LSB
LSB
kΩ
µs
µs
V
V
MHz
MHz
NOTES:
1. AVCC = 2.7 to 5.5 V at Topr = −20 to 85°C (N version) / −40 to 85°C (D version), unless otherwise specified.
2. When the analog input voltage is over the reference voltage, the A/D conversion result will be 3FFh in 10-bit mode and FFh in
8-bit mode.
P0
P1
P2
30pF
P3
P4
Figure 22.1 Ports P0 to P4 Timing Measurement Circuit
Rev.1.10 Dec 21, 2007 Page 404 of 450
REJ09B0406-0110