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R5F5630ECDFB Datasheet(PDF) 153 Page - Renesas Technology Corp

Part # R5F5630ECDFB
Description  Renesas MCUs
PDF  165 Pages
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Manufacturer  RENESAS [Renesas Technology Corp]
Direct Link  http://www.renesas.com
Logo RENESAS - Renesas Technology Corp

R5F5630ECDFB Datasheet(HTML) 153 Page - Renesas Technology Corp

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R01DS0060EJ0100 Rev.1.00
Page 153 of 168
Sep 13, 2011
RX630 Group
5. Electrical Characteristics
5.10
Oscillation Stop Detection Timing
Figure 5.44
Oscillation Stop Detection Timing
5.11
Battery Backup Function Characteristics
Note: • The VCC-off period for starting power supply switching indicates the period in which VCC is below the minimum value of the
voltage level for switching to battery backup (VDETBATT).
Figure 5.45
Battery Backup Function Characteristics
Table 5.27
Oscillation Stop Detection Circuit Characteristics
Conditions: VCC = AVCC0 = VCC_USB = VBATT = 2.7 to 3.6 V, VREFH/VREFH0 = 2.7 V to AVCC0
VSS = AVSS0 = VREFL/VREFL0 = VSS_USB = 0 V
Ta = Topr
Item
Symbol
Min.
Typ.
Max.
Unit
Test
Conditions
Detection time
tdr
—
—
1
ms
Figure 5.44
Table 5.28
Battery Backup Function Characteristics
Conditions: VCC = AVCC0 = VCC_USB = 2.7 to 3.6 V, VREFH/VREFH0 = 2.7 V to AVCC0, VBATT = 2.3 to 3.6 V
VSS = AVSS0 = VREFL/VREFL0 = VSS_USB = 0 V
Ta = Topr
Item
Symbol
Min.
Typ.
Max.
Unit
Test
Conditions
Voltage level for switching to battery backup
VDETBATT
2.50
2.60
2.70
V
Figure 5.45
Lower-limit VBATT voltage for power supply switching due to
VCC voltage drop
VBATTSW
2.70
—
—
VCC-off period for starting power supply switching
tVOFFBATT
200
—
—
μs
tdr
Main clock or
PLL clock
OSTDSR.OSTDF
LOCO clock
ICLK
VCC
tVOFFBATT
VDETBATT
VBATTSW
VBATT
VCC supply
VBATT supply
VCC supply
Backup power
area



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