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3803 Datasheet, PDF (109/119 Pages) Renesas Technology Corp – SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER | |||
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3803 Group (Spec.L) Mask ROM Version
A/D converter characteristics
Table 23 A/D converter recommended operating conditions (Mask ROM version)
(VCC = 2.0 to 5.5 V, VSS = AVSS = 0 V, Ta = â20 to 85 °C, unless otherwise noted)
Symbol
Parameter
Conditions
Min.
Typ.
VCC
Power source voltage
8-bit A/D mode(1)
(When A/D converter is used)
10-bit A/D mode(2)
2.0
5.0
2.2
5.0
VREF
Analog convert reference voltage
2.0
AVSS
Analog power source voltage
0
VIA
Analog input voltage AN0-AN15
0
f(XIN)
Main clock input oscillation
2.0 ⤠VCC = VREF < 2.2 V
0.5
frequency
(When A/D converter is used)
2.2 ⤠VCC = VREF < 2.7 V
0.5
2.7 ⤠VCC = VREF < 4.0 V
0.5
4.0 ⤠VCC = VREF < 4.5 V
0.5
4.5 ⤠VCC = VREF ⤠5.5 V
0.5
NOTES:
1. 8-bit A/D mode: When the conversion mode selection bit (bit 7 of address 003816) is â1â.
2. 10-bit A/D mode: When the conversion mode selection bit (bit 7 of address 003816) is â0â.
Limits
Max.
5.5
5.5
VCC
VCC
-(--2---0-----Ã-----V----C----C-----â----3----6---)----Ã-----1---.--0---5--
2
-(--2---4-----Ã-----V----C----C-----â----4----0---.--8---)----Ã-----1---.--0---5--
3
-(--9-----Ã-----V----C----C-----â----0---.--3----)---Ã-----1---.--0---5--
3
-(--2---4----.-6-----Ã-----V----C----C-----â----6----2---.--7---)----Ã-----1---.--0---5--
3
16.8
Unit
V
V
V
V
MHz
Table 24 A/D converter characteristics (Mask ROM version)
(VCC = 2.0 to 5.5 V, VSS = AVSS = 0 V, Ta = â20 to 85 °C, unless otherwise noted)
Symbol
Parameter
Test conditions
Limits
Unit
Min. Typ. Max.
â
Resolution
8-bit A/D mode(1)
8
bit
10-bit A/D mode(2)
10
â
Absolute accuracy
(excluding quantization error)
8-bit A/D mode(1) 2.0 ⤠VREF < 2.2 V
2.2 ⤠VREF ⤠5.5 V
±3
LSB
±2
10-bit A/D mode(2) 2.2 ⤠VREF < 2.7 V
±5
LSB
2.7 ⤠VREF ⤠5.5 V
±4
tCONV
Conversion time
8-bit A/D mode(1)
50 2tc(XIN)
10-bit A/D mode(2)
61
RLADDER Ladder resistor
12
35 100
kâ¦
IVREF
Reference power at A/D converter operated VREF = 5.0 V
source input current at A/D converter stopped VREF = 5.0 V
50 150 200
µA
5.0
µA
II(AD)
A/D port input current
5.0
µA
NOTES:
1. 8-bit A/D mode: When the conversion mode selection bit (bit 7 of address 003816) is â1â.
2. 10-bit A/D mode: When the conversion mode selection bit (bit 7 of address 003816) is â0â.
D/A converter characteristics
Table 25 D/A converter characteristics (Mask ROM version)
(VCC = 2.7 to 5.5 V, VREF = 2.7 V to VCC, VSS = AVSS = 0 V, Ta = â20 to 85 °C, unless otherwise noted)
Symbol
Parameter
Limits
Unit
Min.
Typ.
Max.
â
Resolution
8
bit
â
Absolute accuracy
4.0 ⤠VREF ⤠5.5 V
1.0
%
2.7 ⤠VREF < 4.0 V
2.5
tsu
Setting time
3
µs
RO
Output resistor
2
3.5
5
kâ¦
IVREF
Reference power source input current(1)
3.2
mA
NOTE:
1. Using one D/A converter, with the value in the DA conversion register of the other D/A converter being â0016â.
Rev.1.00 Apr 2, 2007 Page 109 of 117
REJ03B0212-0100
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