R5107G RICOH Co.,Ltd., R5107G Datasheet
R5107G
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R5107G Summary of contents
Page 1
... R5107G SERIES OUTLINE The R5107G Series are CMOS-based µ con supervisory circuit, or high accuracy and ultra low supply current voltage detector with built-in delay and watchdog timer. When the VDD voltage is down across the threshold, or the watchdog timer does not detect the system clock from the µ con, the reset output is generated. The voltage detector circuit is used for the system reset, etc. The detector threshold is fixed internally, and the tolerance is ± ...
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... R5107G(Preliminary) BLOCK DIAGRAMS VDD CD TW RESETB VDD CD TW RESETB 2 R5107Gxx1A CLOCK WATCHDOG TIMER DETECTOR R5107Gxx1C CLOCK WATCHDOG TIMER DETECTOR GND SCK INH GND SCK INH ...
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... SELECTION GUIDE The selection can be made with designating the part number as shown below: R5107Gxx1x-TR ←part Number ↑↑ ↑ ↑ Code PIN CONFIGURATION 1 RESETB MR R5107GxxxA 2 R5107GxxxC CD 3 GND 4 SSOP8G (0.65mm pitch) PIN DESCRIPTION Pin No Symbol 1 RESETB ...
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... I Output Current RESETB P Power Dissipation D Topt Operating Temperature Range Tstg Storage Temperature Range ELECTRICAL CHARACTERISTICS R5107GxxxA/C Unless otherwise specified, V The number of Bold font applied to the temperature range from -40°C to 105°C Symbol Item V Operating Voltage IN Iss Supply Current -V Detector Threshold DET ∆ ...
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... C CD Power supply V RESETB DD INH SCK R5107GxxxC Series GND Conditions V =V x0.2, IN SCKL V =V x0.8 SCKH RESET µ RESET µ R5107G(Preliminary) Min. Typ. Max. Unit V x0.8 6 0 1.0 6.0 V 0.00 0. 110 164 kΩ 500 ns 5 ...
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... R5107G(Preliminary) TEST CIRCUIT A RESETB V DD R5107GxxxA/C INH Series MR C GND Supply Current Test Circuit 6 R(R5107Gx xxA) SCK Clock Input ...
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... TIMING DIAGRAM (R5107GxxxA/R5107GxxxC) V (Nch open-drain, RESETB pin is pulled DET A -V DET A ＩNＨ MR tpHL C D VTCD VrefH TW VrefL SCK tpLH (1) (2) (4) tpLH TWDI TWD TWR TMR (3) (5) R5107G(Preliminary tpLH TWD TWR (6) 7 ...
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... R5107G(Preliminary) OPERATION M When the VDD pin voltage becomes more than the released voltage (+V (or the power on reset time tpLH), the output of RESETB becomes “H” level. N When the SCK pulse is input, the watchdog timer is cleared, and TW pin mode changes from discharge mode to charge mode ...
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... CD pin starts. In case DET voltage returns equal or more than (+V DD will not be discharged enough result, the delay CD is set at 0.1uF, and the condition to maintain the delay time CD R5107G(Preliminary) ), the delay time tpLH will be DET 9 ...
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... R5107G(Preliminary) Clock Pulse Input Built-in watchdog timer is cleared with the SCK clock pulse within the watchdog timeout period. APPLICATION NOTES If a resistor is connected to the VDD pin, the operation might be unstable with the supply current of IC itself. VDD R1 VIN R5108 RESETB TYPICAL CHARACTERISTICS 1) Supply Current vs ...
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... Detector Threshold Hysteresis vs. Temperature R510xN151A/C R510xG151A/C 7.0 6.0 5.0 4.0 3.0 -50 - TEMPERATURE [℃] 2.740 2.730 2.720 2.710 2.700 2.690 2.680 2.670 2.660 75 100 125 -50 75 100 125 7.0 6.0 5.0 4.0 3.0 75 100 125 -50 R5107G(Preliminary) R510xN271A/C, R510xG271A/C - 100 125 TEMPERATURE [℃] R510xN271A/C R510xG271A/C - 100 TEMPERATURE [℃] 125 11 ...
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... R5107G(Preliminary) R510xN421A/C R510xG421A/C 7.000 6.000 5.000 4.000 3.000 -50 - TEMPERATURE [℃ 100 125 ...
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... DD DD 2.0 1.8 VDS=0.3V 1.6 1.4 1.2 1.0 -40℃ 0.8 0.6 25℃ 0.4 105℃ 0.2 0 R5107G(Preliminary) R510xN, R510xG Vds=0.5V Topt=-40℃ 25℃ 105℃ SUPPLY VOLTAGE V [V] DD R510xN, R510xG VDS=0.5V -40℃ 25℃ 105℃ SUPPLY VOLTAGE [V] 13 ...
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... R5107G(Preliminary) R510xN, R510xG 2.0 1.8 VDS=1.0V 1.6 1.4 1.2 1.0 0.8 0.6 0.4 0.2 0 SUPPLY VOLTAGE [V] 7) Released Delay Time vs. Input Voltage R510xN, R510xG 500 480 460 440 420 400 380 360 340 320 300 -50 - TEMPERATURE [℃] 9) Detector Output Delay Time vs. Temperature R510xN, R510xG 100 90 1us INPUT ...
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... WDT Timeout Period vs. Input Voltage R510xN, R510xG 480 460 440 420 400 380 360 340 320 300 280 SUPPLY VOLTAGE [V] 12) WDT Reset Timer vs. Input Voltage 100 125 R5107G(Preliminary) R510xN, R510xG SUPPLY VOLTAGE [ ...