參數(shù)資料
型號: M38588GCFP
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 17.50 MM, 0.80 MM PITCH, PLASTIC, SSOP-42
文件頁數(shù): 61/77頁
文件大?。?/td> 824K
代理商: M38588GCFP
Rev.1.10
Apr 3, 2006
page 64 of 75
REJ03B0139-0110
3858 Group
A/D converter characteristics
Table 13 A/D converter characteristics
(VCC = 2.7 to 5.5 V, VSS = AVSS = 0 V, Ta = –20 to 85 °C, unless otherwise noted)
Resolution
Absolute accuracy
Conversion time
Ladder resistor
Reference power source input current
A/D port input current
Unit
bit
LSB
tc(XIN)
k
A
Limits
Parameter
Min.
Typ.
Max.
Symbol
8
±3
109
200
120
5.0
37
135
80
50
30
ABS
tCONV
RLADDER
IVREF
II(AD)
Ta=25°C, VCC=VREF
VREF=5.0V
Test conditions
Note : As for AD translation accuracy, on the following operating conditions, accuracy may become low.
(1) Since the analog circuit inside a microcomputer becomes sensitive to noise when VREF voltage is set up lower than Vcc voltage, accuracy may
become low rather than the case where VREF voltage and Vcc voltage are set up to the same value..
(2) When VREF voltage is less than [ 3.0V ], the accuracy at the time of low temperature may become extremely low compared with the time of room
temperature. The use beyond VREF=3.0V is recommended in the system the use by the side of low temperature is assumed to be.
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