參數(shù)資料
型號: μPD780208
廠商: NEC Corp.
元件分類: 8位微控制器
英文描述: 8 Bit Single Chip Microcontrollers
中文描述: 8位單片機(jī)微控制器
文件頁數(shù): 56/78頁
文件大小: 406K
代理商: ΜPD780208
5 6
m
PD780204, 780205, 780206, 780208
A/D CONVERTER CHARACTERISTICS (T
A
= –40 to +85 °C, AV
DD
= V
DD
= 4.0 to 5.5 V, AV
SS
= V
SS
= 0 V)
Parameter
Symbol
Conditions
MIN.
TYP.
MAX.
Unit
Resolution
8
8
8
bit
Total error
Note 1
0.6
%
Conversion time
Note 2
t
CONV
1 MHz - f
X
- 5.0 MHz
19.1
200
m
s
Sampling time
Note 3
t
SAMP
12/f
X
m
s
Analog input voltage
V
IAN
AV
SS
AV
REF
V
Reference voltage
AV
REF
4.0
AV
DD
V
AV
REF
resistor
R
AVREF
4
14
k
W
Notes 1.
Quantization error (±1/2LSB) is not included. This parameter is indicated as the ratio to the full-scale value.
2.
Set the A/D conversion time to 19.1
m
s or more.
3.
Sampling time depends on the conversion time.
DATA MEMORY STOP MODE LOW SUPPLY VOLTAGE DATA RETENTION CHARACTERISTICS (T
A
= –40 to +85 °C)
Parameter
Symbol
Conditions
MIN.
TYP.
MAX.
Unit
Data retention supply voltage
V
DDDR
1.8
5.5
V
Data retention supply current
I
DDDR
V
DDDR
= 2.0 V
Subsystem clock stopped,
Feedback resistor not connected
0.1
10
m
A
Release signal set time
t
SREL
0
m
s
Oscillation stabilization
wait time
t
WAIT
Release by RESET
2
17
/f
X
ms
Release by interrupt
Note
ms
Note
Selection of 2
12
/f
X
, 2
14
/f
X
to 2
17
/f
X
is available by bits 0 to 2 (OSTS0 to OSTS2) of oscillation stabilization time
select register (OSTS).
Data retention timing (STOP mode release by RESET)
Data retention mode
RESET
V
DD
STOP mode
STOP instruction execution
V
DDDR
Operating mode
Internal reset operation
HALT mode
t
SREL
t
WAIT
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