參數(shù)資料
型號： R5F212ACSNXXXFP
元件分類： 微控制器/微處理器
英文描述： 16-BIT, FLASH, 20 MHz, MICROCONTROLLER, PQFP64
封裝： 10 X 10 MM, 0.50 MM PITCH, PLASTIC, LQFP-64
文件頁數(shù)： 30/64頁
文件大?。?/td> 555K
代理商： R5F212ACSNXXXFP
R8C/2A Group, R8C/2B Group
5. Electrical Characteristics
Rev.2.10
Nov 26, 2007
Page 36 of 60
REJ03B0182-0210
NOTES:
1.
VCC/AVCC = Vref = 2.2 to 5.5 V at Topr = -20 to 85
°C (N version) / -40 to 85°C (D version), unless otherwise specified.
2.
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.
NOTES:
1.
VCC/AVCC = Vref = 2.7 to 5.5 V at Topr = -20 to 85
°C (N version) / -40 to 85°C (D version), unless otherwise specified.
2.
This applies when one D/A converter is used and the value of the DAi register (i = 0 or 1) for the unused D/A converter is 00h.
The resistor ladder of the A/D converter is not included. Also, even if the VCUT bit in the ADCON1 register is set to 0 (VREF
not connected), IVref flows into the D/A converters.
Table 5.3
A/D Converter Characteristics(1)
Symbol
Parameter
Conditions
Standard
Unit
Min.
Typ.
Max.
Resolution
Vref = AVCC
10
Bit
Absolute
accuracy
10-bit mode
φAD = 10 MHz, Vref = AVCC = 5.0 V
±3
LSB
8-bit mode
φAD = 10 MHz, Vref = AVCC = 5.0 V
±2
LSB
10-bit mode
φAD = 10 MHz, Vref = AVCC = 3.3 V
±5
LSB
8-bit mode
φAD = 10 MHz, Vref = AVCC = 3.3 V
±2
LSB
10-bit mode
φAD = 5 MHz, Vref = AVCC = 2.2 V
±5
LSB
8-bit mode
φAD = 5 MHz, Vref = AVCC = 2.2 V
±2
LSB
Rladder
Resistor ladder
Vref = AVCC
10
40
k
tconv
Conversion time
10-bit mode
φAD = 10 MHz, Vref = AVCC = 5.0 V
3.3
s
8-bit mode
φAD = 10 MHz, Vref = AVCC = 5.0 V
2.8
s
Vref
Reference voltage
2.2
AVCC
V
VIA
Analog input voltage(2)
0
AVCC
V
A/D operating
clock frequency
Without sample and hold
Vref = AVCC = 2.7 to 5.5 V
0.25
10
MHz
With sample and hold
Vref = AVCC = 2.7 to 5.5 V
1
10
MHz
Without sample and hold
Vref = AVCC = 2.2 to 5.5 V
0.25
5MHz
With sample and hold
Vref = AVCC = 2.2 to 5.5 V
1
5MHz
Table 5.4
D/A Converter Characteristics(1)
Symbol
Parameter
Conditions
Standard
Unit
Min.
Typ.
Max.
Resolution
8Bit
Absolute accuracy
1.0
%
tsu
Setup time
3
s
RO
Output resistor
4
10
20
k
IVref
Reference power input current
(NOTE 2)
1.5
mA
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