參數(shù)資料
型號(hào): M38503G4AFP
元件分類: 微控制器/微處理器
英文描述: 8-BIT, MROM, 6.25 MHz, MICROCONTROLLER, PDSO42
封裝: 8.40 X 17.5 MM, 0.80 MM PITCH, PLASTIC, SSOP-42
文件頁數(shù): 41/59頁
文件大?。?/td> 885K
代理商: M38503G4AFP
Rev.2.13
Apr 17, 2009
Page 46 of 56
REJ03B0125-0213
3850 Group (Spec.A QzROM version)
A/D converter recommended operating conditions
A/D converter characteristics
Table 14
A/D converter recommended operating conditions
(VCC = 2.2 to 5.5 V, VSS = AVSS = 0 V, Ta =
20 to 85 °C, unless otherwise noted)
Symbol
Parameter
Test conditions
Limits
Unit
Min.
Typ.
Max.
VCC
Power source voltage
(When A/D converter is used)
2.2
5.0
5.5
V
VREF
A/D convert reference voltage
2.0
VCC
V
AVSS
Analog power source voltage
0
V
VIA
Analog input voltage AN0-AN8
AVSS
VCC
V
f(XIN)
Main clock input oscillation frequency
(When A/D converter is used)
High-speed mode
f(
φ) = f(XIN)/2
4.0
VCC 5.5 V
0.5
12.5
MHz
2.7
VCC 5.5 V
0.5
6.0
MHz
2.2
VCC 5.5 V
0.5
4.2
MHz
Middle-speed mode
f(
φ) = f(XIN)/8
2.7
VCC 5.5 V
0.5
12.5
MHz
2.2
VCC 5.5 V
0.5
8.4
MHz
Table 15
A/D converter characteristics
(VCC = 2.2 to 5.5 V, VSS = AVSS = 0 V, Ta =
20 to 85 °C, unless otherwise noted)
Symbol
Parameter
Test conditions
Limits
Unit
Min.
Typ.
Max.
Resolution
10
bit
Absolute accuracy
2.2
VCC < 2.7 V
±5
LSB
2.7
VCC 5.5 V
±4
LSB
tCONV
Conversion time
High-speed mode, Middle-speed mode
61
2tc(XIN)
Low-speed mode
40
s
RLADDER
Ladder resistor
35
k
IVREF
Reference power source input current VREF = 5.0 V VREF “on”
50
150
200
A
VREF = 5.0 V VREF “off”
5.0
A
II(AD)
A/D port input current
0.5
5.0
A
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