MB3773PF-G-BND-JNE1 Fujitsu Semiconductor America Inc, MB3773PF-G-BND-JNE1 Datasheet
MB3773PF-G-BND-JNE1
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MB3773PF-G-BND-JNE1 Summary of contents
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FUJITSU SEMICONDUCTOR DATA SHEET ASSP Power Supply Monitor with Watch-Dog Timer MB3773 DESCRIPTION MB3773 generates the reset signal to protect an arbitrary system when the power-supply voltage momentarily is intercepted or decreased for the power-supply voltage watch ...
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MB3773 PIN ASSIGNMENT (TOP VIEW RESET 3 CK GND 4 (DIP-8P-M01) (FPT-8P-M01) 2 RESET 8 RESET REF RESET (FRONT VIEW GND 4 ...
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BLOCK DIAGRAM : = 1.24 V Reference Voltage Generator : = 100 k COMP Inhibit 1.2 A COMP.O : ...
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MB3773 FUNCTIONAL DESCRIPTIONS Comp.S is comparator including hysteresis. it compare the reference voltage and the voltage of Vs, so that when the voltage of Vs terminal falls below approximately 1.23 V, reset signal outputs. Instantaneous breaks or drops in the ...
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MB3773 Basic Operation RESET T RESET CK GND 0 RESET (1) (2) Logic Circuit T (ms 1000 · ...
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MB3773 OPERATION SEQUENCE (1) When Vcc rises to about 0.8 V, RESET goes “Low” and RESET goes “High”. The pull-up current of approximately 1 A (Vcc = 0 output from RESET. (2) When Vcc rises ...
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ABSOLUTE MAXIMUM RATINGS Parameter Supply voltage Input voltage RESET, RESET Supply voltage Power dissipation ( Storage temperature WARNING: Semiconductor devices can be permanently damaged by application of stress (voltage, current, temperature, etc.) in excess of absolute maximum ratings. ...
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MB3773 ELECTORICAL CHARACTERISTICS (1) DC Characteristics Parameter Supply current Detection voltage Hysteresis width Reference voltage Reference voltage change rate Reference voltage output loading change rate CK threshold voltage CK input current C discharge current T High level output voltage Output ...
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Characteristics Parameter V input pulse width CC CK input pulse width CK input frequency Watch dog timer watching time Watch dog timer reset time Rising reset hold time Output propagation delay time from V CC Output rising time* Output ...
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MB3773 TYPICAL CHARACTERISTIC CURVES Supply current vs. Supply voltage 0. 0.65 0. 0.25 0.15 0 2.0 4.0 6.0 8.0 10.0 12.0 14.0 16.0 18.0 20.0 Supply ...
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High level output voltage vs. High level output current (RESET 5 4 High level output current OH2 Reference voltage vs. Supply voltage 1.246 Ta 1.244 Ta ...
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MB3773 (Continued) Reset time vs. Temperature (At watch dog timer Temperature terminal capacitance T vs. Watchdog timer watching time ...
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APPLICATION CIRCUIT EXAMPLE 1: Monitoring 5V Supply Voltage and Watchdog Timer VCC (5V Notes : Supply voltage is monitored using V Detection voltage are V EXAMPLE 2: 5V Supply Voltage Monitoring (external fine-tuning type) V (5V) CC MB3773 ...
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MB3773 EXAMPLE 3: With Forced Reset (with reset hold) ( Note : Grounding pin 7 at the time sets RESET (pin 8) to Low and RESET (pin 2) to High. ( ...
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EXAMPLE 4: Monitoring Two Supply Voltages (with hysteresis, reset output and NMI) V (12 V) CC2 CC1 MB3773 1 5 Example ...
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MB3773 EXAMPLE 5: Monitoring Two Supply Voltages (with hysteresis and reset output) V (12 V) CC2 Example : Comp. 1, Comp MB4204, MB47393 Notes : When either ...
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EXAMPLE 6: Monitoring Low voltage and Overvoltage Monitoring (with hysteresis MB3773 1 Notes : Comp. 1 and Comp. 2 are used to monitor for overvoltage while ...
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MB3773 EXAMPLE 7: Monitoring Supply Voltage Using Delayed Trigger Note : Adding voltage such as shown in the figure to V width MB3773 ...
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EXAMPLE 8: Stopping Watch-dog Timer (Monitoring only supply voltage) These are example application circuits in which the MB3773 monitors supply voltage alone without resetting the microprocessor even if the latter, used in standby mode, stops sending the clock pulse to ...
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MB3773 (Continued) (c) Using NPN transistor (d) Using PNP transistor MB3773 ...
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EXAMPLE 9: Reducing Reset Hold Time MB3773 (a) T reduction method PR Notes : RESET is the only output that can be used. Standard T ...
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MB3773 EXAMPLE 10: Circuit for Monitoring Multiple Microprocessor FF1 RESET RESET RESET RESET CK CK GND GND *: Microprocessor Notes : connects from FF1 and FF2 outputs Q ...
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Description of Application Circuits Using one MB3773, this application circuit monitors multiple microprocessor in one system. Signals from each microprocessor are sent to FF1, FF2 and FF3 clock inputs. Figure 2 shows these timings. Each flip-flop operates using signals sent ...
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MB3773 EXAMPLE 11: Circuit for Limiting Upper Clock Input Frequency Notes : This is an example application to limit upper frequency f the microprocessor. If the CK cycle sent from the microprocessor exceeds f ...
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... The worker must put on a grounding device containing 250 k • Do not apply a negative voltage - Applying a negative voltage of 0 less to an LSI may generate a parasitic transistor, resulting in malfunction. ORDERING INFORMATION Part number MB3773P MB3773PS MB3773PF resistors in series. Package 8-pin plastic DIP (DIP-8P-M01) 8-pin plastic SIP (SIP-8P-M03) 8-pin plastic SOP ...
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MB3773 PACKAGE DIMENSIONS 8-pin plastic DIP (DIP-8P-M01) 4.36(.172)MAX 3.00(.118)MIN +0.30 0.99 –0 +.012 .039 –0 +0.35 0.89 –0.30 +.014 .035 –.012 1994 FUJITSU LIMITED D08006S-2C +0.40 9.40 –0.30 +.016 .370 –.012 6.20±0.25 1 PIN INDEX (.244±.010) 0.51(.020)MIN 0.25±0.05 ...
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FPT (FPT-8P-M01) +0.25 +.010 1 * 6.35 .250 –0.20 –.008 5.30±0.30 INDEX * (.209±.012) (.307±.016 1.27(.050) 0.47±0.08 (.019±.003) 0.10(.004) 0.10(.004) 2002 FUJITSU LIMITED F08002S-c-6-7 C Note These dimensions include ...
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MB3773 (Continued) 8-pin plastic SIP (SIP-8P-M03) INDEX-1 INDEX-2 +0.30 0.99 –0 +.012 .039 –0 2.54(.100) TYP 1994 FUJITSU LIMITED S08010S-3C +0.15 19.65 –0.35 +.006 .774 –.014 6.20±0.25 (.244±.010) 8.20±0.30 (.323±.012) 4.00±0.30 (.157±.012) +0.30 1.52 0.50±0.08 –0 +.012 (.020±.003) ...
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MB3773 FUJITSU LIMITED All Rights Reserved. The contents of this document are subject to change without notice. Customers are advised to consult with FUJITSU sales representatives before ordering. The information, such as descriptions of function and application circuit examples, in ...