UPD784020 Datasheet, PDF (71/90 Pages) NEC – 16/8-BIT SINGLE-CHIP MICROCOMPUTER

mPD784020, 784021
D/A CONVERTER CHARACTERISTICS (TA = –40 to +85 °C, AVREF2 = VDD = AVDD = 2.7 to 5.5 V, AVREF3 = VSS
= AVSS = 0 V)
Parameter
Resolution
Total error^Note
Settling time
Output resistance
Analog reference voltage
Reference supply input
current
Symbol
Conditions
Load condition: VDD = 4.5 to 5.5 V
4 MW, 30 pF
VDD = 4.5 to 5.5 V
AVREF2 = 0.75VDD
AVREF3 = 0.25VDD
AVREF2 = 0.75VDD
AVREF3 = 0.25VDD
Load condition: VDD = 4.5 to 5.5 V
2 MW, 30 pF
VDD = 4.5 to 5.5 V
AVREF2 = 0.75VDD
AVREF3 = 0.25VDD
AVREF2 = 0.75VDD
AVREF3 = 0.25VDD
Load condition: 2 MW, 30 pF
RO
Note
AVREF2
AVREF3
AIREF2
AIREF3
Min.
Typ.
Max.
Unit
8
bit
0.4
%
0.6
%
0.6
%
0.8
%
0.6
%
0.8
%
0.8
%
1.0
%
10
ms
20
kW
0.75VDD
VDD
V
0
0.25VDD
V
0
5
mA
–5
0
mA
Note DACS0, DACS1 = 7FH
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