To provide a semiconductor integrated circuit that has both a voltage drop detecting function of a plurality of channels and a voltage rise detecting function of a specific channel.SOLUTION: A semiconductor integrated circuit comprises: a plurality of terminals including a first input terminal, a second input terminal, a first output terminal and a second output terminal; a first detection circuit which asserts a first signal when voltage drop of the first input terminal is detected; second detection circuit which asserts a second signal when overpotential of the first input terminal is detected; a third detection circuit which asserts a third signal when voltage drop of the second input terminal is detected; a first output circuit which monitors the first signal and the second signal, and when the first signal or the second signal is asserted, outputs a first reset signal from the first output terminal; and a second output circuit which monitors the third signal, and when the third signal is asserted, outputs a second reset signal from the second output terminal.SELECTED DRAWING: Figure 1
【課題】複数チャネルの電圧低下検出機能と特定チャネルの電圧上昇検出機能とを併せ持つ半導体集積回路の提供。【解決手段】第1入力端子、第2入力端子、第1出力端子及び第2出力端子を含む複数の端子と、前記第1入力端子の電圧低下を検出すると、第1信号をアサートする第1検出回路と、前記第1入力端子の過電圧を検出すると、第2信号をアサートする第2検出回路と、前記第2入力端子の電圧低下を検出すると、第3信号をアサートする第3検出回路と、前記第1信号及び前記第2信号を監視し、前記第1信号又は前記第2信号がアサートされているとき、第1リセット信号を前記第1出力端子から出力する第1出力回路と、前記第3信号を監視し、前記第3信号がアサートされているとき、第2リセット信号を前記第2出力端子から出力する第2出力回路と、を備える、半導体集積回路。【選択図】図1
SEMICONDUCTOR INTEGRATED CIRCUIT AND ELECTRONIC APPARATUS
半導体集積回路及び電子機器
28.11.2024
Patent
Elektronische Ressource
Japanisch
IPC: | H03K PULSE TECHNIQUE , Impulstechnik / B60R Fahrzeuge, Fahrzeugausstattung oder Fahrzeugteile, soweit nicht anderweitig vorgesehen , VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR / H02J CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER , Schaltungsanordnungen oder Systeme für die Abgabe oder Verteilung elektrischer Leistung |
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