參數(shù)資料
型號: R5F21387ANFP
元件分類: 微控制器/微處理器
英文描述: 8-BIT, FLASH, 20 MHz, MICROCONTROLLER, PQFP80
封裝: 12 X 12 MM, 0.50 MM PITCH, PLASTIC, LQFP-80
文件頁數(shù): 24/56頁
文件大?。?/td> 469K
代理商: R5F21387ANFP
R8C/38A Group
5. Electrical Characteristics
REJ03B0274-0110 Rev.1.10 Sep 28, 2009
Page 30 of 54
Under development Preliminary specification
Specifications in this manual are tentative and subject to change.
Notes:
1. VCC/AVCC = Vref = 2.2 to 5.5 V, VSS = 0 V, and Topr =
20 to 85°C (N version), unless otherwise specified.
2. When the CPU and flash memory stop, the A/D conversion result will be undefined.
3. When the analog input voltage is over the reference voltage, the A/D conversion result will be 3FFh in 10-bit mode and FFh in
8-bit mode.
Table 5.3
A/D Converter Characteristics
Symbol
Parameter
Conditions
Standard
Unit
Min.
Typ.
Max.
Resolution
Vref = AVCC
——
10
Bit
Absolute accuracy
10-bit mode
Vref = AVCC = 5.0 V
AN0 to AN7 input,
AN8 to AN11 input,
AN12 to AN19 input
±3
LSB
Vref = AVCC = 3.3 V
AN0 to AN7 input,
AN8 to AN11 input,
AN12 to AN19 input
±5
LSB
Vref = AVCC = 3.0 V
AN0 to AN7 input,
AN8 to AN11 input,
AN12 to AN19 input
±5
LSB
Vref = AVCC = 2.2 V
AN0 to AN7 input,
AN8 to AN11 input,
AN12 to AN19 input
±5
LSB
8-bit mode
Vref = AVCC = 5.0 V
AN0 to AN7 input,
AN8 to AN11 input,
AN12 to AN19 input
±2
LSB
Vref = AVCC = 3.3 V
AN0 to AN7 input,
AN8 to AN11 input,
AN12 to AN19 input
±2
LSB
Vref = AVCC = 3.0 V
AN0 to AN7 input,
AN8 to AN11 input,
AN12 to AN19 input
±2
LSB
Vref = AVCC = 2.2 V
AN0 to AN7 input,
AN8 to AN11 input,
AN12 to AN19 input
±2
LSB
φAD
A/D conversion clock
4.0 V
≤ Vref = AVCC ≤ 5.5 V (2)
2—
20
MHz
3.2 V
≤ Vref = AVCC ≤ 5.5 V (2)
2—
16
MHz
2.7 V
≤ Vref = AVCC ≤ 5.5 V (2)
2—
10
MHz
2.2 V
≤ Vref = AVCC ≤ 5.5 V (2)
2—
5
MHz
Tolerance level impedance
3
k
DNL
Differential non-linearity error
±1
LSB
tCONV
Conversion time
10-bit mode
Vref = AVCC = 5.0 V,
φAD = 20 MHz
2.15
s
8-bit mode
Vref = AVCC = 5.0 V,
φAD = 20 MHz
2.15
s
tSAMP
Sampling time
φAD = 20 MHz
0.75
s
IVref
Vref current
VCC = 5.0 V, XIN = f1 =
φAD = 20 MHz
45
A
Vref
Reference voltage
2.2
AVCC
V
VIA
Analog input voltage (3)
0—
Vref
V
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