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| 型号： | R5F21296JXXXSP |
| 元件分类： | 微控制器/微处理器 |
| 英文描述： | 16-BIT, FLASH, 20 MHz, MICROCONTROLLER, PDSO20 |
| 封装： | 4.40 X 6.50 MM, 0.65 MM PITCH, PLASTIC, LSSOP-20 |
| 文件页数： | 22/63页 |
| 文件大小： | 612K |
| 代理商： | R5F21296JXXXSP |
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R8C/28 Group, R8C/29 Group
5. Electrical Characteristics
Rev.2.10
Sep 26, 2008
Page 27 of 67
REJ03B0169-0210
NOTES:
1. The measurement condition is Topr = -20 to 85
°C (N version) / -40 to 85°C (D version), unless otherwise specified.
2. This condition (external power VCC rise gradient) does not apply if VCC
≥ 1.0 V.
3. To use the power-on reset function, enable voltage monitor 0 reset by setting the LVD0ON bit in the OFS register to 0, the
VW0C0 and VW0C6 bits in the VW0C register to 1 respectively, and the VCA25 bit in the VCA2 register to 1.
4. tw(por1) indicates the duration the external power VCC must be held below the effective voltage (Vpor1) to enable a power on
reset. When turning on the power for the first time, maintain tw(por1) for 30 s or more if -20
°C ≤ Topr ≤ 85°C, maintain tw(por1) for
3,000 s or more if -40
°C ≤ Topr < -20°C.
Figure 5.3
Reset Circuit Electrical Characteristics
Table 5.9
Power-on Reset Circuit, Voltage Monitor 0 Reset Electrical Characteristics(3)
Symbol
Parameter
Condition
Standard
Unit
Min.
Typ.
Max.
Vpor1
Power-on reset valid voltage(4)
0.1
V
Vpor2
Power-on reset or voltage monitor 0 reset valid
voltage
0
Vdet0
V
trth
20
mV/msec
NOTES:
1. When using the voltage monitor 0 digital filter, ensure that the voltage is within the MCU operation voltage
range (2.2 V or above) during the sampling time.
2. The sampling clock can be selected. Refer to 6. Voltage Detection Circuit of Hardware Manual for details.
3. Vdet0 indicates the voltage detection level of the voltage detection 0 circuit. Refer to 6. Voltage Detection
Circuit of Hardware Manual for details.
Vdet0(3)
Vpor1
Internal
reset signal
(“L” valid)
tw(por1)
Sampling time(1, 2)
Vdet0(3)
1
fOCO-S
× 32
1
fOCO-S
× 32
Vpor2
2.2 V
External
Power VCC
trth
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相关代理商/技术参数 |
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| R5F21296KSP | 制造商:RENESAS 制造商全称:Renesas Technology Corp 功能描述:SINGLE-CHIP 16-BIT CMOS MCU |
| R5F21296KXXXSP | 制造商:RENESAS 制造商全称:Renesas Technology Corp 功能描述:RENESAS 16-BIT SINGLE-CHIP MCU R8C FAMILY / R8C/2x SERIES |
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