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n OUTLINE
`99.12.3
Microprocessor power management with Watchdog Timer
R5101G Series
The R5101G Series are microprocessor power management ICs with high accuracy output voltage and detector threshold and with ultra low supply current by CMOS process. Each of these ICs consists of a voltage regulator, a voltage detector and a watchdog timer. Thus, the R5101G Series have the function of a power management for microprocessor, a monitor of the voltage of a power source and a microprocessor supervisor. The built-in voltage regulator with an internal driver transistor can supply typically 50mA current to a system when the voltage difference between input and output is 2V. Therefore these ICs are very suitable for various power supply systems for microprocessors. The output voltage is monitored by the voltage detector which is built-in these ICs. The built-in voltage detector has an output delay function and the delay time can be set by an external capacitor(CD). The output voltage and the detector threshold voltage can be set individually for each IC by laser trimming. Furthermore, when a microprocessor works incorrectly, the watchdog timer which checks over microprocessor generates reset signals intermittently to prevent a whole system from being malfunction. The time period for watching and holding a reset signal of the watchdog timer can also be set individually by an external capacitor(CTW).
n FEATURES
l Built-in a watchdog timer l Time period for monitoring and generating a reset signal of the watchdog timer can be set by an external capacitor l Watchdog timer can be stopped individually by CE Pin l Low supply current * * * * * * * * * * * * * * * * * * * * * * *TYP. 5A l The output voltage of Voltage Regulator and the detector threshold voltage can be set individually with a step of 0.1V for each IC by laser trim l High Accuracy Output Voltage of Voltage Regulator and Detector Threshold * * * * 2.5% l Power-on Reset Delay Time can be set by an external capacitor l Output Current * * * * * * * Typ. 50mA (at Vin - Vout = 2V) l Small Package * * * Ultra-mini SSOP-8G (0.65mm pitch ) Refer to Package Dimensions
n APPLICATION
l Power source for microprocessors
n PIN CONFIGURATION
SSOP8G(0.65mm pitch)
SCK CD CTW VDD
Reset CE GND VOUT
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Rev. 1.10 -1-
n PACKAGE DIMENSIONS
SSOP8G
2.80.2 0.65 2.90.1
4.00.3
Unit : mm
n BLOCK DIAGRAMS
RESET
8
W DT
Level Shift
1
SCK
CTW CE
3 7
4
VDD
5
VOUT
+ -
Vref2 + + -
CD
2 Vref1 6 GND
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Rev. 1.10 -2-
n PIN DESCRIPTION
Pin No. Symbol 1 2 3 4 5 6 7 8 SCK CD CTW VDD VOUT GND CE Clock Input Pin from Microprocessor External Capacitor Pin for Setting Delay Time of Voltage Detector External Capacitor Pin for Setting Monitoring Time and Reset Time of Watchdog timer Power supply Pin Output Pin for Voltage Regulator Ground Pin Control Switch Pin for Watchdog timer ( "H" active, "L" inactive) Description
RESET Output Pin for Reset signal of Watchdog timer and Voltage Detector.(Output Type is Nch Open Drain, Output "L" at detecting Detector Threshold and Watchdog Timer Reset. )
n ABSOLUTE MAXIMUM RATINGS
Symbol VDD VCD VCTW VOUT VRESET VCE VSCK IOUT IRESET PD Topt Tstg Item Supply Voltage Output Voltage
Voltage of CD Pin Voltage of CTW Pin Voltage of VOUT Pin Voltage of RESET Pin Voltage of CE Pin Voltage of SCK Pin Current of VOUT Pin Current of RESET Pin
Input Voltage Output Current
Power Dissipation Operating Temperature Range Storage Temperature Range
Topt=25C, Vss=0V Rating Unit -0.3~12 V Vss-0.3~VDD+0.3 V Vss-0.3~VDD+0.3 V Vss-0.3~VDD+0.3 V Vss-0.3~12 V Vss-0.3~VDD+0.3 V Vss-0.3~VDD+0.3 V 150 mA 10 mA 300 mW -40~+85 C -55~+125 C
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Rev. 1.10 -3-
n ELECTRICAL CHARACTERISTICS
lR5101G001A
Symbol VDD Iss-On Iss-Off VOUT IOUT VDIF
DVOUT/ DIOUT DVOUT/ DVDD
Item Operating Voltage Supply Current (WDT active) Supply Current (WDT inactive) Output Voltage Output Current Dropout Voltage Load Regulation Line Regulation Current Limit (Short mode) Output Voltage Temperature Coefficient Detector Threshold Hysteresis Range Regulator Voltage Margin against Released Voltage Detector Threshold Temperature Coefficient Reset Delay Time Watch Time of WDT Reset Hold Time of WDT SCK Input Voltage " H " SCK Input Voltage " L " CE Input Voltage " H " CE Input Voltage " L " SCK Input Current " H " SCK Input Current " L " CE Pull-up Resistance CD Pin Output Current CTW Pin Output Current RESET Pin Output Current RESET Pin Leakage Current SCK Input Pulse Width
Minimum Operating Voltage of Voltage Detector
Conditions VDD=CE=5.0V VDD=5.0V, CE=GND VDD=5.0V,IOUT=10mA VDD=5.0V IOUT=30mA VDD=5.0V 1mAIOUT50mA IOUT=10mA VOUT+0.5VVDD10V VOUT=0V IOUT=10mA -40CTopt85C
MIN.
2.925 100 150
Topt=25C MAX. Unit 10 V 5 15 mA 6 18 mA 3.000 3.075 V mA 500 850 mV 50 100 mV TYP. 0.1 0.2 100 %/V mA ppm/
C
Ilim
DVOUT/ DTopt
10
50
100
-VDET VHYS VDETMGN
D-VDET/ DTopt
VOUT-((-VDET)+VHYS), IOUT=10mA -40CTopt85C VDD=5.0V, CD=0.001mF VDD=5.0V, CW=0.01mF VDD=5.0V, CW=0.01mF VDD=5.0V VDD=5.0V
2.633 0.081 0.02
2.700 0.135
2.767 0.189
V V V ppm/
C
100
tpr twd twr VIHSCK VILSCK VIHCE VILCE IIHSCK IILSCK Rpu ICD ICTW IRESET Ileak tsckw Vstart
VDD=SCK=5.0V VDD=5.0V, SCK=GND VDD=1.3V,VDS=0.5V VDD=1.3V,VDS=0.5V VDD=1.3V,VDS=0.5V
VDD=10.0V,CE=GND,VDS=12.0V
VDD=5.0V, CW=0.01mF
7 50 5 0.8VOUT 0 1.2 0 -1 -1 2 1 1 1 -1 500
14 100 10
4 2 2 2
21 150 15 VDD 0.2VOUT VDD 0.2 1 1 10
ms ms ms V V V V
mA mA
MW mA mA mA
mA
1 0.9 1.3
ns V
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Rev. 1.10 -4-
lR5101G002A
Symbol VDD Iss-On Iss-Off VOUT IOUT VDIF
DVOUT/ DIOUT DVOUT/ DVDD
Item Operating Voltage Supply Current (WDT active) Supply Current (WDT inactive) Output Voltage Output Current Dropout Voltage Load Regulation Line Regulation Current Limit (Short mode) Output Voltage Temperature Coefficient Detector Threshold Hysteresis Range Regulator Voltage Margin against Released Voltage Detector Threshold Temperature Coefficient Reset Delay Time Watch Time of WDT Reset Hold Time of WDT SCK Input Voltage " H " SCK Input Voltage " L " CE Input Voltage " H " CE Input Voltage " L " SCK Input Current " H " SCK Input Current " L " CE Pull-up Resistance CD Pin Output Current CTW Pin Output Current RESET Pin Output Current RESET Pin Leakage Current SCK Input Pulse Width Minimum Operating Voltage of Voltage Detector
Conditions VDD=CE5.3V VDD=5.3V, CE=GND VDD=5.3V, IOUT=10mA VDD=5.3V IOUT=30mA VDD=5.3V 1mAIOUT50mA IOUT=10mA VOUT+0.5VVDD10V VOUT=0V IOUT=10mA -40CTopt85C
MIN.
3.218 50 100
Topt=25C MAX. Unit 10 V 5 15 mA 6 18 mA 3.300 3.382 V mA 500 650 mV 50 100 mV TYP. 0.1 0.2 100 %/V mA ppm/
C
Ilim
DVOUT/ DTopt
10
50
100
-VDET VHYS VDETMGN
D-VDET/ DTopt
2.925 0.090 VOUT-((-VDET)+VHYS), IOUT=10mA -40CTopt85C VDD=5.3V, CD=0.001mF VDD=5.3V, CW=0.01mF VDD=5.3V, CW=0.01mF VDD=5.3V VDD=5.3V 0.02
3.000 0.150
3.075 0.210
V V V
100
ppm/
C
tpr twd twr VIHSCK VILSCK VIHCE VILCE IIHSCK IILSCK Rpu ICD ICTW IRESET Ileak tsckw Vstart
7 50 5 0.8VOUT 0 1.2 0
14 100 10
21 150 15 VDD 0.2VOUT VDD 0.2 1 1
ms ms ms V V V V
mA mA
VDD=SCK=5.3V VDD=5.3V, SCK=GND VDD=1.3V,VDS=0.5V VDD=1.3V,VDS=0.5V VDD=1.3V,VDS=0.5V
VDD=10.0V,CE=GND,VDS=12.0V
-1 -1 4 1 1 1 -1 500 0.9 2 2 2
MW mA mA mA 1 1.3
mA
VDD=5.3V, SCK=GND
ns V
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Rev. 1.10 -5-
lR5101G003A
Symbol VDD Iss-On Iss-Off VOUT IOUT VDIF
DVOUT/ DIOUT DVOUT/ DVDD
Item Operating Voltage Supply Current (WDT active) Supply Current (WDT inactive) Output Voltage Output Current Dropout Voltage Load Regulation Line Regulation Current Limit (Short mode) Output Voltage Temperature Coefficient Detector Threshold Hysteresis Range Regulator Voltage Margin against Released Voltage Detector Threshold Temperature Coefficient Reset Delay Time Watch Time of WDT Reset Hold Time of WDT SCK Input Voltage " H " SCK Input Voltage " L " CE Input Voltage " H " CE Input Voltage " L " SCK Input Current " H " SCK Input Current " L " CE Pull-up Resistance CD Pin Output Current CTW Pin Output Current RESET Pin Output Current RESET Pin Leakage Current SCK Input Pulse Width Minimum Operating Voltage of Voltage Detector
Conditions VDD=CE=7.0V VDD=7.0V, CE=GND VDD=7.0V, IOUT=10mA VDD=7.0V IOUT=30mA VDD=7.0V 1mAIOUT50mA IOUT=10mA VOUT+0.5VVDD10V VOUT=0V IOUT=10mA -40CTopt85C
MIN.
4.875 50 100
Topt=25C TYP. MAX. 10 7 20 8 24 5.000 5.125 350 50 0.1 600 100 0.2 100
Unit V
mA mA
V mA mV mV %/V mA ppm/
C
Ilim
DVOUT/ DTopt
10
50
100
-VDET VHYS VDETMGN
D-VDET/ DTopt
4.388 0.135 VOUT-((-VDET)+VHYS), IOUT=10mA -40CTopt85C VDD=7.0V, CD=0.001mF VDD=7.0V, CW=0.01mF VDD=7.0V, CW=0.01mF VDD=7.0V VDD=7.0V 0.02
4.500 0.225
4.590 0.315
V V V
100
ppm/
C
tpr twd twr VIHSCK VILSCK VIHCE VILCE IIHSCK IILSCK Rpu ICD ICTW IRESET Ileak tsckw Vstart
7 50 5 0.8VOUT 0 1.2 0
14 100 10
21 150 15 VDD 0.2VOUT VDD 0.2 1 1
ms ms ms V V V V
mA mA
VDD=SCK=7.0V VDD=7.0V, SCK=GND VDD=1.3V, VDS=0.5V VDD=1.3V, VDS=0.5V VDD=1.3V, VDS=0.5V
VDD=10.0V, CE=GND, VDS=12.0V
-1 -1 2 1 1 1 -1 500 0.9 4 2 2 2
10
MW mA mA mA
1
mA
VDD=7.0V, SCK=GND
ns 1.3 V
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Rev. 1.10 -6-
lR5101G004A
Symbol VDD Iss-On Iss-Off VOUT IOUT VDIF
DVOUT/ DIOUT DVOUT/ DVDD
Item Operating Voltage Supply Current (WDT active) Supply Current (WDT inactive) Output Voltage Output Current Dropout Voltage Load Regulation Line Regulation Current Limit (Short mode) Output Voltage Temperature Coefficient Detector Threshold Hysteresis Range Regulator Voltage Margin against Released Voltage Detector Threshold Temperature Coefficient Reset Delay Time Watch Time of WDT Reset Hold Time of WDT SCK Input Voltage " H " SCK Input Voltage " L " CE Input Voltage " H " CE Input Voltage " L " SCK Input Current " H " SCK Input Current " L " CE Pull-up Resistance CD Pin Output Current CTW Pin Output Current RESET Pin Output Current RESET Pin Leakage Current SCK Input Pulse Width Minimum Operating Voltage of Voltage Detector
Conditions VDD=CE=7.0V VDD=7.0V, CE=GND VDD=7.0V,IOUT=10mA VDD=7.0V IOUT=30mA VDD=7.0V 1mAIOUT50mA IOUT=10mA VOUT+0.5VVDD10V VOUT=0V IOUT=10mA -40CTopt85C
MIN.
4.875 50 100
Topt=25C TYP. MAX. 10 7 20 8 24 5.000 5.125 350 50 0.1 650 100 0.2 100
Unit V
mA mA
V mA mV mV %/V mA ppm/
C
Ilim
DVOUT/ DTopt
10
50
100
-VDET VHYS VDETMGN
D-VDET/ DTopt
2.145 0.066 VOUT-((-VDET)+VHYS), IOUT=10mA -40CTopt85C VDD=7.0V, CD=0.001mF VDD=7.0V, CW=0.01mF VDD=7.0V, CW=0.01mF VDD=7.0V VDD=7.0V 0.02
2.200 0.110
2.255 0.154
V V V
100
ppm/
C
tpr twd twr VIHSCK VILSCK VIHCE VILCE IIHSCK IILSCK Rpu ICD ICTW IRESET Ileak tsckw Vstart
7 50 5 0.8VOUT 0 1.2 0
14 100 10
21 150 15 VDD 0.2VOUT VDD 0.2 1 1
ms ms ms V V V V
mA mA
VDD=SCK=7.0V VDD=7.0V, SCK=GND VDD=1.3V, VDS=0.5V VDD=1.3V, VDS=0.5V VDD=1.3V, VDS=0.5V
VDD=10.0V,CE=GND,VDS=12.0V
-1 -1 2 1 1 1 -1 500 0.9 4 2 2 2
10
MW mA mA mA
1
mA
VDD=7.0V, SCK=GND
ns 1.3 V
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Rev. 1.10 -7-
lR5101G005A
Symbol VDD Iss-On Iss-Off VOUT IOUT VDIF
DVOUT/ DIOUT DVOUT/ DVDD
Item Operating Voltage Supply Current (WDT active) Supply Current (WDT inactive) Output Voltage Output Current Dropout Voltage Load Regulation Line Regulation Current Limit (Short mode) Output Voltage Temperature Coefficient Detector Threshold Hysteresis Range Regulator Voltage Margin against Released Voltage Detector Threshold Temperature Coefficient Reset Delay Time Watch Time of WDT Reset Hold Time of WDT SCK Input Voltage " H " SCK Input Voltage " L " CE Input Voltage " H " CE Input Voltage " L " SCK Input Current " H " SCK Input Current " L " CE Pull-up Resistance CD Pin Output Current CTW Pin Output Current RESET Pin Output Current RESET Pin Leakage Current SCK Input Pulse Width Minimum Operating Voltage of Voltage Detector
Conditions VDD=CE=4.8V VDD=4.8V, CE=GND VDD=4.8V, IOUT=10mA VDD=4.8V, IOUT=10mA IOUT=10mA VDD=4.8V 1mAIOUT50mA IOUT=10mA VOUT+0.5VVDD10V VOUT=0V IOUT=10mA -40CTopt85C
MIN.
2.730 50 100
Topt=25C TYP. MAX. 10 5 15 6 18 2.800 2.870 350 50 0.1 650 100 0.2 100
Unit V
mA mA
V mA mV mV %/V mA ppm/
C
Ilim
DVOUT/ DTopt
10
50
100
-VDET VHYS VDETMGN
D-VDET/ DTopt
2.340 0.072 VOUT-((-VDET)+VHYS), IOUT=10mA -40CTopt85C VDD=4.8V, CD=0.001mF VDD=4.8V, CW=0.01mF VDD=4.8V, CW=0.01mF VDD=4.8V VDD=4.8V 0.02
2.400 0.120
2.460 0.168
V V V
100
ppm/
C
tpr twd twr VIHSCK VILSCK VIHCE VILCE IIHSCK IILSCK Rpu ICD ICTW IRESET Ileak tsckw Vstart
7 50 5 0.8VOUT 0 1.2 0
14 100 10
21 150 15 VDD 0.1VOUT VDD 0.2 1 1
ms ms ms V V V V
mA mA
VDD=SCK=4.8V VDD=4.8V, SCK=GND VDD=1.3V, VDS=0.5V VDD=1.3V, VDS=0.5V VDD=1.3V, VDS=0.5V
VDD=10.0V,CE=GND,VDS=12.0V
-1 -1 4 1 1 1 -1 500 0.9 2 2 2
MW mA mA mA 1
mA
VDD=4.8V, SCK=GND
ns 1.3 V
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Rev. 1.10 -8-
n TYPICAL APPLICATION
R5101GXXX Series
Micro Processor
SCK CD(0.001mF) CD CTW CW(0.01mF) VDD
1mF
RESET CE GND VOUT
1mF
DOUT
RESET
510kW
VDD
n TECHNICAL NOTES
Use 0.01mF or more value of an external capacitor, CW for setting monitoring time of watchdog timer. Use 1 or 2.2mF capacitor between VDD and GND, and between VOUT and GND and make its wiring as short as possible.
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Rev. 1.10 -9-
n OPERATION DIAGRAM
VDD
Vstart
+Vdet -Vdet
VOUT
Detector Threshold Hysteresis
tpr
Vref2H
CD
twd
Vref2H
twr
CTW
Vref2L
tsckw
SCK
CE
RESET
-(R)

- (R)
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Rev. 1.10 - 10 -
n OPERATION
When VDD is turned on and Input Voltage reaches Vstart (nearly equal 0.8V), the output of RESET pin
becomes "L" level.
- An External Capacitor starts to be charged through the CD pin when an Output Voltage of the Voltage
Regulator, VOUT, crosses the Released Voltage , +VDET , from Lower to Higher . The VRESET is kept "L" level until Voltage of the CD pin , VCD , reaches to the Vref2H , about 1.0V , and after that the VRESET becomes to "H" level.
\ tPR : Time interval between the timing of starting edge of forcing voltage to VDD pin and the timing of
reverse the voltage level of VRESET . tPR can be set by connecting an external capacitor to CD pin, tPR can be calculated as shown below; tPR (ms) 13000 CD (mF) ; CD means a value of an external capacitor connected to CD pin.
(R) When the voltage level of VCD reaches to the Vref2H, the external capacitor starts to be charged through
the CTW pin and the watchdog timer begins to operate.
The operation mode for the external capacitor changes from charging mode to discharging mode through
CTW pin when the voltage level of CTW pin , VCTW , reaches to the Vref2H.
While the CTW pin is on the discharging mode, if a clock pulse is entered (synchronous with a rising edge
of the pulse), the operation mode of CTW pin changes from charging mode to discharging mode. And the external capacitor connected to CTW pin is charged until its voltage level reaches to Vref2H.
While the CTW pin is on the discharging mode, if VCTW level drops to Vref2L, about 0.2V without clock
pulse to CLK pin, the voltage level of Reset pin becomes from "H" to "L".
\ Watch Time of the watchdog timer , tWD , : Discharging Time of CTW pin level from Vref2H to Vref2L
tWD can be set by connecting an external capacitor to CW pin, tWD can be calculated as shown below; tWD (ms) 10000 CW (mF); Cw means a value of an external capacitor connected to Cw pin.
CTW pin is changed to charging mode from discharging mode when the Reset signal is generated. \ Reset time of the watchdog timer , tWR , : Time interval between Charging time of the CTW pin from Vref2L
to Vref2H. tWR can be calculated by the next equation as shown below; tWR (ms) tWD/10
The Output Voltage level of Reset pin becomes from "H" to "L", or a Reset signal is generated when an
output voltage of the Voltage Regulator drops to a level at equal or less than -Vdet.
The watchdog timer will be halted when a Voltage level of CE pin becomes to "L". In this case, only the
watchdog timer is stopped and monitoring the output voltage is continued. After that, if the voltage level of CE pin becomes to "H", CTW pin starts to be on charging mode.
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Rev. 1.10 - 11 -
n TEST CIRCUITS
Test Circuit of Supply Current
Test Circuit of Output Voltage
RESET CE GND VOUT
SCK CD CTW VDD
RESET CE GND VOUT
SCK CD CTW VDD
A
V
IOUT
Test Circuit of Detector Threshold(VDET)
Test Circuit of Monitoring Time of WDT and RESET Time
470k RESET CE GND VOUT SCK CD CTW VDD
470k
oscilloscope
RESET CE GND VOUT
SCK CD CTW VDD
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Rev. 1.10 - 12 -
Test Circuit of SCK Input Current RESET CE GND VOUT SCK CD CTW VDD
Test Circuit of Output Current RESET SCK CD CTW VDD
A
CE GND VOUT
A
Test Circuit of Minimum Input Voltage Test Circuit of RESET Output leakage Current for RESET Output
470K RESET CE GND VOUT SCK RESET SCK CD CTW VDD
V
CD CTW VDD
CE GND VOUT
A
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Rev. 1.10 - 13 -
n TYPICAL CHARACTERISTICS
1) Output Voltage vs. Output Current
R5101G001A 3.5 Output Voltage VOUT(V) 3.0 2.5 2.0 1.5 1.0 0.5 0.0 0 50 100 150 Output Current IOUT(mA) 200 85 C -40 C 25C VDD=5V
R5101G003A,004A VDD=7V
6.0 Output Voltage VOUT(V) 5.0 4.0 3.0 2.0 1.0 0.0 0 100 200 300 Output Current IOUT(mA) 400
85 C 0 C
-40 C
2) Output Voltage vs. Input Voltage
3.2 Output Voltage V OUT(V) R5101G001A Topt=25 C
Output Voltage VOUT(V)
R5101G003A,004A
5.2 5.1 5.0
30mA 0mA
Topt=25 C
3.1 0mA 3.0 30mA 2.9 10mA
4.9 4.8
10mA
2.8 2 3 4 5 6 7 Input Voltage VDD(V) 8 9 10
4
5
6 7 8 Input Voltage VDD(V)
9
10
3) Dropout Voltage vs. Output Current
1.0 Dropout Voltage VDIF(V) 0.8 0.6 0.4 0.2 0.0 0 10 20 30 Output Current IOUT(mA) 40 25C -40C 85 C R5101G001A 1.0
Dropout Voltage VDIF(V)
R5101G003A, 004A
VDD=7.0V
0.8 0.6 0.4 0.2 0.0 10 20 30 40 50
Output Current IOUT(mA)
85 C
25 C
-40 C
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Rev. 1.10 - 14 -
4) Output Voltage vs. Temperature
R5101G001A
3.10 Output Voltage VOUT(V) 3.05 3.00 2.95 2.90 -50 -25 0 25 50 75 Temperature Topt (C) 100
VDD=5V
5.10 Output Voltage VOUT(V) 5.05 5.00 4.95 4.90 -50
R5101G003A,004A VDD=7.0V,IOUT=10mA
-25
0 25 50 75 Temperature Topt (C)
100
5) RESET Pin Voltage vs. Input Voltage
3.0 RESET Pin Voltage VRESET(V) 2.5
6) Detector Threshold vs. Temperature
2.90 2.85 Detector Threshold VDET(V) 2.80 2.75 2.70 -VDET 2.65 2.60 -50 -25 0 25 50 75 Temperature Topt (C) 100 +VDET R5101G001A
R5101G001A Pull-up 510kW
2.0 1.5 1.0 0.5 0.0 0.0
-40 C 85C 25 C
0.5 1.0 1.5 2.0 Input Voltage VDD(V) 2.5 3.0
7) CD Pin Output Current vs. Input Voltage
12 CD Output Current IOUT(mA) 10 8 -40 C 6 4 2 0 0 1 2 Input Voltage VDD(V) 3 25 C R5101G001A VDS=0.5V
8) CTW Pin Output Current vs. Input Voltage
R5101G001A
12 CTW Output Current IOUT(mA) 10 8
VDS=0.5V
-40 C
6
25 C
4 2 0 0 1 2 Input Voltage VDD(V) 3
85C
85 C
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Rev. 1.10 - 15 -
9) RESET Pin Output Current vs. Input Voltage
R5101G001A
12
10) Delay Time of Released Voltage vs. Temperature
22 20 Delay Time of Released Voltage tpr(ms)
VDS=0.5V
R5101G001A
RESET Output Current IOUT(mA)
10 8
18 16 14 12 10 8 6 4 2 0 -50 -25 0 25 50 75 100
-40C
6
25 C
4 2
85C
0 0 0.5 1 1.5 2 Input Voltage VDD(V) 2.5 3
(C) Temperature Topt
11) Monitoring Time of Watchdog Timer vs. Temperature
R5101G001A
160
12) Reset Time of Watchdog Timer vs. Temperature
16 Reset Time of Watchdog Timer twr(ms) 14 12 10 8 6 4 2 0
R5101G001A
Monitoring Time of Watchdog Timer twd(ms)
140 120 100 80 60 40 20 0 -50 -25 0 25 50 75 Temperature Topt (C) 100
-50
-25
0 25 50 75 Temperature Topt (C)
100
13) tpr vs. External Capacitance of Cd Pin
100000 10000 tpr (ms) 1000 100 10 1 1.E-09
14) twd, twr vs. External Capacitance of Ctw Pin
100000 10000 twd,twr (ms) 1000 100 10 1 twr twd
1.E-08
1.E-07
1.E-06
0.1 1.E-08
1.E-07 External Capacitance of CTW Pin(F)
1.E-06
External Capacitance of CD Pin(F)
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Rev. 1.10 - 16 -
15) CE Pull-up Resistance vs. Temperature
CE Pull-up Resistance RPU (MW) 10 9 8 7 6 5 4 3 2 1 0 -50 -25 R5101G001A
0 25 50 75 Temperature Topt (C)
100
16) Supply Current vs. Input Voltage (WDT ON)
R5101G001A
15
17) Supply Current vs. Temperature (WDT ON)
Topt=25C
15 12 9 6 3 0
R5101G001A
VDD=5V
Supply Current Iss-on(uA)
9
6
3
0 3 4 5 6 7 8 Input Voltage VDD(V) 9 10
Supply Current Iss-off (uA)
12
-50
-25
0
25
50
75
100
Temperature Topt (C)
18) Supply Current vs. Input Voltage (WDT OFF)
R5101G001A
18 Supply Current Iss-off(uA) 15 12 9 6 3 0 3 4 5 6 7 8 Input Voltage VDD(V) 9 10
19) Supply Current vs. Temperature (WDT OFF)
R5101G001A 18 Supply Current Isson(uA) 15 12 9 6 3 0 -50 -25 0 25 50 75 Temperature Topt (C) 100 VDD=5V
Topt=25C
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Rev. 1.10 - 17 -

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