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参数资料
| 型号： | R5F2120CJFP |
| 元件分类： | 微控制器/微处理器 |
| 英文描述： | 8-BIT, FLASH, 20 MHz, MICROCONTROLLER, PQFP48 |
| 封装： | 7 X 7 MM, 0.50 MM PITCH, PLASTIC, LQFP-48 |
| 文件页数： | 20/47页 |
| 文件大小： | 432K |
| 代理商： | R5F2120CJFP |
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R8C/20 Group, R8C/21 Group
5. Electrical Characteristics
Rev.2.00 Aug 27, 2008
Page 25 of 41
REJ03B0120-0200
Figure 5.2
Time delay until Suspend
NOTES:
1.
The measurement condition is VCC = 2.7 V to 5.5 V and Topr = -40
°C to 85°C (J version) / -40°C to 125°C (K version).
2.
Necessary time until the voltage detection circuit operates when setting to 1 again after setting the VCA26 bit in the VCA2
register to 0.
3.
Hold Vdet2 > Vdet1.
4.
This parameter shows the voltage detection level when the power supply drops. The voltage detection level when the power
supply rises is higher than the voltage detection level when the power supply drops by approximately 0.1 V.
5.
Time until the voltage monitor 1 reset is generated after the voltage passes Vdet1 when VCC falls. When using the digital filter,
its sampling time is added to td(Vdet1-A). When using the voltage monitor 1 reset, maintain this time until VCC = 2.0 V after the
voltage passes Vdet1 when the power supply falls.
NOTES:
1.
The measurement condition is VCC = 2.7 V to 5.5 V and Topr = -40
°C to 85°C (J version) / -40°C to 125°C (K version).
2.
Time until the voltage monitor 2 reset/interrupt request is generated since the voltage passes Vdet2.
3.
Necessary time until the voltage detection circuit operates when setting to 1 again after setting the VCA27 bit in the VCA2
register to 0.
4.
Hold Vdet2 > Vdet1.
5.
When using the digital filter, its sampling time is added to td(Vdet2-A). When using the voltage monitor 2 reset, maintain this
time until VCC = 2.0 V after the voltage passes Vdet2 when the power supply falls.
Table 5.6
Voltage Detection 1 Circuit Electrical Characteristics
Symbol
Parameter
Condition
Standard
Unit
Min.
Typ.
Max.
Vdet1
2.70
2.85
3.00
V
td(Vdet1-A)
Voltage monitor 1 reset generation time(5)
40
200
s
Voltage detection circuit self power consumption
VCA26 = 1, VCC = 5.0 V
0.6
A
td(E-A)
Waiting time until voltage detection circuit operation
starts(2)
100
s
Vccmin
MCU operating voltage minimum value
2.70
V
Table 5.7
Voltage Detection 2 Circuit Electrical Characteristics
Symbol
Parameter
Condition
Standard
Unit
Min.
Typ.
Max.
Vdet2
Voltage detection level(4)
3.3
3.6
3.9
V
td(Vdet2-A)
Voltage monitor 2 reset/interrupt request generation
time(2, 5)
40
200
s
Voltage detection circuit self power consumption
VCA27 = 1, VCC = 5.0V
0.6
A
td(E-A)
Waiting time until voltage detection circuit operation
starts(3)
100
s
FMR46
Suspend request
(Maskable interrupt request)
Fixed time
td(SR-SUS)
Clock-dependent time
Access restart
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