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| 型號： | R5F21248SNXXXFP |
| 元件分類： | 微控制器/微處理器 |
| 英文描述： | 16-BIT, FLASH, 20 MHz, MICROCONTROLLER, PQFP52 |
| 封裝： | 10 X 10 MM, 0.65 MM PITCH, PLASTIC, LQFP-52 |
| 文件頁數(shù)： | 26/59頁 |
| 文件大?。?/td> | 528K |
| 代理商： | R5F21248SNXXXFP |
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R8C/24 Group, R8C/25 Group
5. Electrical Characteristics
Rev.3.00
Feb 29, 2008
Page 32 of 51
REJ03B0117-0300
NOTES:
1.
VCC = 2.2 to 5.5 V, Topr = -20 to 85
°C (N version) / -40 to 85°C (D version), unless otherwise specified.
2.
Standard values when the FRA1 register value after reset is assumed.
3.
Standard values when the corrected value of the FRA6 register has been written to the FRA1 register.
4.
This enables the setting errors of bit rates such as 9600 bps and 38400 bps to be 0% when the serial interface is used in
UART mode.
NOTE:
1.
VCC = 2.2 to 5.5 V, Topr = -20 to 85
°C (N version) / -40 to 85°C (D version), unless otherwise specified.
NOTES:
1.
The measurement condition is VCC = 2.2 to 5.5 V and Topr = 25
°C.
2.
Waiting time until the internal power supply generation circuit stabilizes during power-on.
3.
Time until system clock supply starts after the interrupt is acknowledged to exit stop mode.
Table 5.10
High-speed On-Chip Oscillator Circuit Electrical Characteristics
Symbol
Parameter
Condition
Standard
Unit
Min.
Typ.
Max.
fOCO40M
High-speed on-chip oscillator frequency
temperature supply voltage dependence
VCC = 4.75 to 5.25 V
0
39.2
40
40.8
MHz
VCC = 4.5 to 5.5 V
-20
°C ≤ Topr ≤ 85°C
38.8
40
40.8
MHz
VCC = 4.5 to 5.5 V
-40
°C ≤ Topr ≤ 85°C
38.4
40
40.8
MHz
VCC = 3.0 to 5.5 V
-20
38.8
40
41.2
MHz
VCC = 3.0 to 5.5 V
-40
38.4
40
41.6
MHz
VCC = 2.7 to 5.5 V
-20
38
40
42
MHz
VCC = 2.7 to 5.5 V
-40
37.6
40
42.4
MHz
VCC = 2.2 to 5.5 V
-20
35.2
40
44.8
MHz
VCC = 2.2 to 5.5 V
-40
34
40
46
MHz
High-speed on-chip oscillator frequency when
correction value in FRA7 register is written to
FRA1 register(4)
VCC = 5.0 V, Topr = 25
°C
36.864
MHz
VCC = 3.0 to 5.5 V
-20
°C ≤ Topr ≤ 85°C
-3%
3%
%
Value in FRA1 register after reset
08h
F7h
Oscillation frequency adjustment unit of high-
speed on-chip oscillator
Adjust FRA1 register
(value after reset) to -1
+0.3
MHz
Oscillation stability time
10
100
s
Self power consumption at oscillation
VCC = 5.0 V, Topr = 25
°C
400
A
Table 5.11
Low-speed On-Chip Oscillator Circuit Electrical Characteristics
Symbol
Parameter
Condition
Standard
Unit
Min.
Typ.
Max.
fOCO-S
Low-speed on-chip oscillator frequency
30
125
250
kHz
Oscillation stability time
10
100
s
Self power consumption at oscillation
VCC = 5.0 V, Topr = 25
°C
15
A
Table 5.12
Power Supply Circuit Timing Characteristics
Symbol
Parameter
Condition
Standard
Unit
Min.
Typ.
Max.
td(P-R)
Time for internal power supply stabilization during
power-on(2)
1
2000
s
td(R-S)
STOP exit time(3)
150
s
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