Preliminary document
Specifications in this document are tentative and subject to change.
Under development
R8C/34W Group, R8C/34X Group, R8C/34Y Group, R8C/34Z Group
5. Electrical Characteristics
Table 5.4
A/D Converter Characteristics
Standard
Symbol
Parameter
Conditions
Unit
Min.
−
Typ.
−
Max.
10
−
−
Resolution
Vref = AVCC
Bit
Absolute accuracy
10-bit mode
8-bit mode
Vref = AVCC = 5.0 V
Vref = AVCC = 3.0 V
Vref = AVCC = 5.0 V
Vref = AVCC = 3.0 V
AN0 to AN7 input,
AN8 to AN11 input
−
−
±3
LSB
AN0 to AN7 input,
AN8 to AN11 input
−
−
−
−
−
−
±5
±2
±2
LSB
LSB
LSB
AN0 to AN7 input,
AN8 to AN11 input
AN0 to AN7 input,
AN8 to AN11 input
(2)
φAD
A/D conversion clock
2
2
−
−
20
10
−
MHz
MHz
kΩ
µA
µs
µs
µs
V
4.0 ≤ Vref = AVCC = ≤ 5.5
2.7 ≤ Vref = AVCC = ≤ 5.5
(2)
−
Tolerance level impedance
Vref current
−
3
Ivref
tCONV
VCC = 5.0 V, XIN = f1 = φAD = 20 MHz
10-bit mode Vref = AVCC = 5.0 V, φAD = 20 MHz
−
45
−
−
Conversion time
2.2
2.2
0.75
2.7
0
−
8-bit mode
Vref = AVCC = 5.0 V, φAD = 20 MHz
φAD = 20 MHz
−
−
tSAMP
Vref
Sampling time
−
−
Reference voltage
−
AVCC
Vref
1.54
(3)
VIA
−
V
Analog input voltage
OCVREF On-chip reference voltage
2 MHz ≤ φAD ≤ 4 MHz
1.14
1.34
V
Notes:
1. VCC/AVCC = Vref = 2.7 to 5.5 V, VSS = 0 V at Topr = −40 to 85°C (J version) / −40 to 125°C (K version), unless otherwise
specified.
2. The A/D conversion result will be undefined in wait mode, stop mode, when the flash memory stops, and in low-consumption
current mode. Do not perform A/D conversion in these states or transition to these states during A/D conversion.
3. 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.
REJ03B0312-0010 Rev.0.10
Apr 09, 2010
Page 47 of 67
RENESAS [ RENESAS TECHNOLOGY CORP ]
