參數(shù)資料
型號: UPD17147GT
廠商: NEC Corp.
英文描述: SMALL, GENERAL-PURPOSE 4-BIT SINGLE-CHIP MICROCONTROLLERS
中文描述: 小,通用4位單晶片微控制器
文件頁數(shù): 86/102頁
文件大?。?/td> 408K
代理商: UPD17147GT
86
μ
PD17145(A1), 17147(A1), 17149(A1)
A/D Converter (V
DD
= 4.0 to 5.5 V, T
a
= –40 to +110
°
C)
Parameter
Symbol
Condition
MIN.
TYP.
MAX.
Unit
Resolution
8
8
8
bit
Absolute accuracy
Note 1
2.5 V
V
REF
V
DD
±
1.5
LSB
Conversion time
Note 2
t
CONV
25 t
CY
μ
s
Analog input voltage
V
ADIN
0
V
REF
V
Reference input voltage
V
REF
2.5
V
DD
V
A/D converter circuit current
I
ADC
When A/D converter operates
1.0
2.0
mA
V
REF
pin current
I
REF
0.1
0.3
mA
Notes 1.
Absolute accuracy excluding quantization error (
±
0.5LSB)
Time since a conversion start instruction has been executed until conversion ends (ADCEND =
1) (50
μ
s at 8 MHz).
2.
Remark
t
CY
= 16/f
x
(f
x
: system clock oscillation frequency)
POC Circuit (mask option
Note 1
) (V
DD
= 2.7 to 5.5 V, T
a
= –40 to +110
°
C)
Parameter
Symbol
Condition
MIN.
TYP.
MAX.
Unit
POC detection voltage
Note 2
V
POC
3.6
4.0
4.45
V
Supply voltage fall speed
t
POCS
0.08
V/ms
Reset detection pulse width
t
SAMP
1
ms
POC circuit current
I
POC
3.0
10
μ
A
Notes 1.
The POC circuit can be used in an application circuit that operates at V
DD
= 4.5 to 5.5 V,
f
x
= 400 kHz to 4 MHz.
This is the voltage at which the POC circuit clears its internal reset operation. The internal reset
is cleared when V
POC
< V
DD
.
2.
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