參數(shù)資料
型號: μPD78070A
廠商: NEC Corp.
英文描述: 8 Bit Single Chip Microcontrollers(8位單片微控制器)
中文描述: 8位單片機微控制器(8位單片微控制器)
文件頁數(shù): 61/74頁
文件大?。?/td> 481K
代理商: ΜPD78070A
m
PD78070A
60
A/D Converter Characteristics
(T
A
= –40 to +85 °C, AV
DD
= V
DD
= 2.7 to 5.5 V, AV
SS
= V
SS
= 0 V)
Parameter
Symbol
Test Conditions
MIN.
TYP.
MAX.
Unit
Resolution
8
8
8
bit
Total error
Note
2.7 V - AV
REF0
- AV
DD
0.6
%
Conversion time
t
CONV
19.1
200
m
s
m
s
V
Sampling time
t
SAMP
12/f
xx
Analog input voltage
V
IAN
AV
SS
AV
REF0
Reference voltage
AV
REF0
2.7
AV
DD
V
AV
REF0
-AV
SS
resistance
R
AIREF0
4
14
k
W
Note
Excluding quantization error (±1/2 LSB). Shown as a percentage of the full scale value.
Remark
f
xx
: Main system clock frequency (f
x
or f
x
/2)
f
x
: Main system clock oscillation frequency
D/A Converter Characteristics
(T
A
= –40 to +85 °C, V
DD
= 2.7 to 5.5 V, AV
SS
= V
SS
= 0 V)
Parameter
Symbol
Test Conditions
MIN.
TYP.
MAX.
Unit
Resolution
8
bit
Total error
R = 2 M
W
Note1
R = 4 M
W
Note1
R = 10 M
W
Note1
C = 30 pF
Note1
4.5 V - AV
REF1
- 5.5 V
1.2
%
0.8
%
0.6
%
Settling time
10
m
s
m
s
k
W
V
2.7 V - AV
REF1
< 4.5 V
15
Output resistor
R
O
Note2
10
Analog reference voltage
AV
REF1
2.7
V
DD
AV
REF1
–AV
SS
resistance
R
AIREF1
DACS0, DACS1 = 55H
Note2
4
8
k
W
Notes 1.
R and C are the D/A converter output pin load resistance and load capacitance.
2.
Value for one D/A converter channel.
Remark
DACS0, DACS1: D/A conversion value setting registers 0, 1.
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