Rev.1.01
Jan 25, 2005
page 106 of 114
REJ03B0131-0101Z
3804 Group (Spec. H)
A/D converter characteristics
bit
LSB
2tc(XIN)
k
A
Resolution
Absolute accuracy
(excluding quantization error)
Conversion time
Ladder resistor
Reference power
at A/D converter operated
source input current at A/D converter stopped
A/D port inout current
Max.
8-bit A/D mode (Note 1)
10-bit A/D mode (Note 2)
8-bit A/D mode (Note 1)
2.7
≤ VREF ≤ 5.5 V
10-bit A/D mode (Note 2)
2.7
≤ VREF ≤ 5.5 V
8-bit A/D mode (Note 1)
10-bit A/D mode (Note 2)
VREF = 5.0 V
Table 26 A/D converter characteristics
(VCC = 2.7 to 5.5 V, VSS = AVSS = 0 V, Ta = –20 to 85 °C, unless otherwise noted)
Unit
Limits
Parameter
–
tCONV
RLADDER
IVREF
II(AD)
Test conditions
Symbol
Parameter
Limits
Min.
Unit
Typ.
Max.
Conditions
Table 25 A/D converter recommended operating conditions
(VCC = 2.7 to 5.5 V, VSS = AVSS = 0 V,Ta = –20 to 85 °C, unless otherwise noted)
Power source voltage
(When A/D converter is used)
Analog reference voltage
Analog power source voltage
Analog input voltage
Main clock oscillation frequency
(When A/D converter is used)
VCC
VREF
AVSS
VIA
f(XIN)
V
MHZ
2.7
2.0
0
0.5
5.0
0
2.7
≤ VCC < 4.0 V
4.0
≤ VCC < 4.5 V
4.5
≤ VCC ≤ 5.5 V
5.5
VCC
(9VCC-0.3)1.05
3
(24VCC-60)1.05
3
16.8
8-bit A/D mode (Note 1)
10-bit A/D mode (Note 2)
Note 1: 8-bit A/D mode: When the conversion mode selection bit (bit 7 of address 003816) is “1”.
2: 10-bit A/D mode: When the conversion mode selection bit (bit 7 of address 003816) is “0”.
Note 1: 8-bit A/D mode: When the conversion mode selection bit (bit 7 of address 003816) is “1”.
2: 10-bit A/D mode: When the conversion mode selection bit (bit 7 of address 003816) is “0”.
Note 1: Using one D/A converter, with the value in the DA conversion register of the other D/A converter being “0016”.
Table 27 D/A converter characteristics
(VCC = 2.7 to 5.5 V, VREF = 2.7 V to VCC, VSS = AVSS = 0 V, Ta = –20 to 85 °C, unless otherwise noted)
bit
%
s
k
mA
Resolution
Absolute accuracy
4.0
≤ VREF ≤ 5.5 V
2.7
≤ VREF < 4.0 V
Setting time
Output resistor
Reference power source input current (Note 1)
Min.
Unit
Limits
Parameter
–
tsu
RO
IVREF
Test conditions
Symbol
D/A converter characteristics
8
10
±2
±4
50
61
100
200
5
12
50
35
150
Min.
Typ.
Max.
2
3.5
8
1.0
2.5
3
5
3.2
Table 28 Power source circuit timing characteristics
(VCC = 2.7 to 5.5 V, VREF = 2.7 V to VCC, VSS = AVSS = 0 V, Ta = –20 to 85 °C, unless otherwise noted)
ms
Internal power source stable time at power-on
Min.
Unit
Limits
Parameter
td(P–R)
Test conditions
Symbol
Power source circuit timing characteristics
Typ.
Max.
2
2.7
≤ Vcc < 5.5 V