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參數(shù)資料
| 型號： | MB90W224AZF |
| 元件分類： | 微控制器/微處理器 |
| 英文描述： | 16-BIT, UVPROM, 16 MHz, MICROCONTROLLER, CQFP120 |
| 封裝： | CERAMIC, QFP-120 |
| 文件頁數(shù)： | 81/105頁 |
| 文件大?。?/td> | 1700K |
| 代理商： | MB90W224AZF |
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77
MB90220 Series
5. A/D Converter Electrical Characteristics
Single-chip mode MB90223/224/P224B/W224B
: (AVCC = VCC = +4.5 V to +5.5 V, AVSS =VSS = 0.0 V, TA = –40
°C to +105°C, +4.5 V ≤ AVRH – AVRL)
MB90P224A/W224A
: (AVCC = VCC = +4.5 V to +5.5 V, AVSS = VSS =0.0 V, TA = –40
°C to +85°C, +4.5 V ≤ AVRH – AVRL)
External bus mode
: (AVCC = VCC = +4.5 V to +5.5 V, AVSS = VSS =0.0 V, TA = –40
°C to +70°C, +4.5 V ≤ AVRH – AVRL)
*1: These standards in this table are for MB90224/P224A/P224B/W224A/W224B.
MB90223: Minimum conversion time is 8.17
s and minimum sampling time is 5 s at tCYC = 83.4 ns.
*2: The current value applies to the CPU stop mode with the A/D converter inactive (V CC = AVCC = AVRH = +5.5 V).
Notes: (1) The error becomes larger as | AVRH – AVRL | becomes smaller.
(2) Use the output impedance of the external circuit for analog input under the following conditions:
External circuit output impedance < approx. 10 k
(Sampling time approx. 3.75 s, tCYC = 62.5 ns)
(3) Precision values are standard values applicable to sleep mode.
(4) If VCC/AVCC or VSS/AVSS is caused by a noise to drop to below the analog input volgtage, the analog
input current is likely to increase. In such cases, a bypass capacitor or the like should be provided in
the external circuit to suppress the noise.
Parameter
Symbol
Pin
name
Condition
Value
Unit
Remarks
Min.
Typ.
Max.
Resolution
n
—
10
bit
Total error
—
±3.0
LSB
Linearity error
—
±2.0
LSB
Differential linearity error
—
±1.5
LSB
Zero transition voltage
V0T
AN00 to
AN15
—
AVRL – 1.5 AVRL + 0.5 AVRL + 2.5
LSB
Full-scale transition
voltage
VFST
—
AVRH – 3.5 AVRH – 1.5 AVRH + 0.5
LSB
Conversion time*1
TCONV
—
tCYC
= 62.5 ns
6.125
—
s
98 machine
cycles
Sampling period
TSAMP
—3.75
—
s
60 machine
cycles
Analog port input current
IAIN
AN00 to
AN15
——
—
±0.1
A
Analog input voltage
VAIN
—AVRL
—
AVRH
V
Analog reference voltage
—
AVRH
—
AVRL
—
AVCC
V
AVRL
—
AVSS
—AVRH
V
Reference voltage supply
current
IR
AVRH
—
200
500
A
IRH
——
—
5*2
A
Variation between
channels
—
AN00 to
AN15
——
—
4
LSB
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