upd78p058f Renesas Electronics Corporation., upd78p058f Datasheet - Page 54

• Manufacturer Part Number: upd78p058f
• Description: Mos Intergrated Circuit, 8-bit Single-chip Microcontroller
• Manufacturer: Renesas Electronics Corporation.

54
A/D Converter Characteristics (T
Note
Caution
Remarks 1. f
D/A Converter Characteristics (T
Notes 1. R and C are the D/A converter output pin load resistance and load capacitance.
Remark DACS0, DACS1 : D/A conversion value setting register 0, 1
Resolution
Total error
Conversion time
Sampling time
Analog input voltage
Reference voltage
AV
Resolution
Total error
Settling time
Output resistance
Analog reference
voltage
AV
REF0
REF1
Parameter
Parameter
to AV
to AV
Excluding quantization error ( 1/2LSB). Shown as a percentage of the full scale value.
2. Value for one D/A converter channel
Note
For pins which also function as port pins (see 2.1 Pins in Normal Operating Mode (1) Port pins),
do not perform the following operations during A/D conversion. If these operations are performed,
the total error ratings cannot be kept.
<1> Rewrite the output latch while the pin is used as a port pin.
<2> Change the output level of the pin used as an output pin, even if it is not used as a port pin.
SS
SS
2. f
resistance
resistance
XX
X
: Main system clock frequency (f
: Main system clock oscillation frequency
Symbol
Symbol
AV
R
AV
R
t
t
V
CONV
SAMP
AIREF0
AIREF1
R
IAN
REF0
REF1
O
R = 2 M
R = 4 M
R = 10 M
C = 30 pF
Note 2
DACS0, DACS1 = 55H
2.7 V
A
A
= –40 to +85 C, AV
= –40 to +85 C, V
AV
Note 1
Note 1
Note 1
Note 1
REF0
Test Conditions
Test Conditions
4.5 V
2.7 V
AV
X
DD
Note 2
or f
AV
AV
DD
REF1
REF1
DD
X
= 2.7 to 6.0 V, AV
/2)
= V
< 4.5 V
6.0 V
DD
= 2.7 to 6.0 V, AV
12/f
AV
MIN.
MIN.
19.1
2.7
2.0
8
4
4
SS
XX
SS
= V
SS
SS
TYP.
TYP.
= 0 V)
14
10
8
8
= V
SS
= 0 V)
AV
MAX.
MAX.
AV
200
V
1.4
1.2
0.8
0.6
10
15
8
8
REF0
DD
DD
PD78P058F
Unit
Unit
k
k
k
bit
bit
%
%
%
%
V
V
V
s
s
s
s