IC 3773 DATASHEET PDF

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Quick Links. Download this manual. MB generates the reset signal to protect an arbitrary system when the power-supply voltage momentarily is.

It is IC for the power-supply voltage watch and "Power on reset" is generated at the. MB sends the microprocessor the reset signal when decreasing more. In addition, the watchdog timer for the operation diagnosis of the system is built into, and various microprocessor.

If MB does not receive the clock pulse from the processor for an. This device contains circuitry to protect the inputs against damage due to high static voltages or electric fields. However, it is advised that normal precautions be taken to avoid application of any voltage higher than maximum rated voltages.

Table of Contents. Summary of Contents for Fujitsu MB Page 1 In addition, the watchdog timer for the operation diagnosis of the system is built into, and various microprocessor systems can provide the fail-safe function. If MB does not receive the clock pulse from the processor for an specified period, MB generates the reset signal.

S 40 k Inhibit 1. Page 4 Comp. S is comparator including hysteresis. Instantaneous breaks or drops in the power can be detected as abnormal conditions by the MB within a 2 s interval. Page 7 No warranty is made with respect to uses, operating conditions, or combinations not represented on the data sheet. Rating Symbol Page 9 0. Supply voltage 0. Page 11 1. Page 12 MB Continued Reset time vs. Reset time at watch dog timer 25 C Based on selecting R internal voltage divider, the detection voltage can be set according to the resistance ratio of and R See the table below.

Page 15 Example : Comp. The 12 V supply voltage is monitored by the external circuit. Its output is connected to the NMI terminal and, when voltage drops, Comp. Use V 5 V to power the comparators Comp. Page 17 MB 1. Page 19 These are example application circuits in which the MB monitors supply voltage alone without resetting the microprocessor even if the latter, used in standby mode, stops sending the clock pulse to the MB Page 23 Description of Application Circuits Using one MB, this application circuit monitors multiple microprocessor in one system.

Figure 2 shows these timings. Each flip-flop operates using signals sent from microprocessor as its clock pulse. When even one signal stops, the relevant receiving flip-flop stops operating. Page 25 - Applying a negative voltage of 0.

Page Note 3 : Pins width and pins thickness include plating thickness. Print page 1 Print document 29 pages. Cancel Delete. Sign In OR. Don't have an account? Sign up! Restore password. Upload from disk. Upload from URL.

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Quick Links. Download this manual. MB generates the reset signal to protect an arbitrary system when the power-supply voltage momentarily is. It is IC for the power-supply voltage watch and "Power on reset" is generated at the. MB sends the microprocessor the reset signal when decreasing more. In addition, the watchdog timer for the operation diagnosis of the system is built into, and various microprocessor. If MB does not receive the clock pulse from the processor for an.

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