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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)： | 29/56頁 |
| 文件大?。?/td> | 469K |
| 代理商： | R5F21387ANFP |
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R8C/38A Group
5. Electrical Characteristics
REJ03B0274-0110 Rev.1.10 Sep 28, 2009
Page 35 of 54
Under development Preliminary specification
Specifications in this manual are tentative and subject to change.
Notes:
1. The measurement condition is VCC = 1.8 to 5.5 V and Topr =
20 to 85°C (N version).
2. The voltage detection level varies with detection targets. Select the level with the VCA24 bit in the VCA2 register.
3. Time until the voltage monitor 2 interrupt request is generated after the voltage passes Vdet2.
4. Necessary time until the voltage detection circuit operates after setting to 1 again after setting the VCA27 bit in the VCA2
register to 0.
Notes:
1. The measurement condition is Topr =
20 to 85°C (N version), unless otherwise specified.
2. To use the power-on reset function, enable voltage monitor 0 reset by setting the LVDAS bit in the OFS register to 0.
Figure 5.3
Power-on Reset Circuit Electrical Characteristics
Table 5.11
Voltage Detection 2 Circuit Electrical Characteristics
Symbol
Parameter
Condition
Standard
Unit
Min.
Typ.
Max.
Vdet2
Voltage detection level Vdet2_0 (2)
At the falling of VCC
3.70
4.00
4.30
V
Voltage detection level Vdet2_EXT (2)
At the falling of LVCMP2
1.20
1.34
1.48
V
—
Hysteresis width at the rising of VCC in voltage
detection 2 circuit
—0.10—
V
—
Voltage detection 2 circuit response time (3)
At the falling of VCC from
5.0 V to (Vdet2_0
0.1) V
—
20
150
s
—
Voltage detection circuit self power consumption
VCA27 = 1, VCC = 5.0 V
—
1.7
—
A
td(E-A)
Waiting time until voltage detection circuit operation
starts (4)
—
100
s
Table 5.12
Power-on Reset Circuit (2)
Symbol
Parameter
Condition
Standard
Unit
Min.
Typ.
Max.
trth
External power VCC rise gradient
0
—
50,000
mV/msec
Notes:
1. Vdet0 indicates the voltage detection level of the voltage detection 0 circuit. Refer to 6. Voltage Detection
Circuit of Hardware Manual (REJ09B0485) for details.
2. tw(por) indicates the duration the external power VCC must be held below the valid voltage (0.5 V) to enable
a power-on reset. When turning on the power after it falls with voltage monitor 0 reset disabled, maintain
tw(por) for 1 ms or more.
Vdet0 (1)
0.5 V
Internal
reset signal
tw(por) (2)
Voltage detection 0
circuit response time
Vdet0 (1)
External
Power VCC
trth
1
fOCO-S
× 32
1
fOCO-S
× 32
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相關(guān)代理商/技術(shù)參數(shù) |
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|---|---|
| R5F21387ANLG | 制造商:RENESAS 制造商全稱:Renesas Technology Corp 功能描述:RENESAS MCU |
| R5F21387ANXXXFP | 制造商:RENESAS 制造商全稱:Renesas Technology Corp 功能描述:RENESAS MCU |
| R5F21387ANXXXLG | 制造商:RENESAS 制造商全稱:Renesas Technology Corp 功能描述:RENESAS MCU |
| R5F21387CDFP | 制造商:RENESAS 制造商全稱:Renesas Technology Corp 功能描述:RENESAS MCU |
| R5F21387CDFP#U0 | 制造商:Renesas Electronics Corporation 功能描述:R8C38C 48+4KB 1.8/5.5V -40 85C 80LQFP - Trays |
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