System auf einem Chip (soc) mit einem Niederstrombetriebsmodus

Details

Veröffentlichungs-Nr.

EP4538830

Aktenzeichen

EP24205311

Anmeldetag

8. Oktober 2024

Veröffentlichung

16. April 2025

Rechtsraum

EP

IPC

G06F1/3206

Abstract

In an integrated circuit, a first always on (AON) domain generates an isolation signal to enter standby mode. A switchable power domain propagates the isolation signal. A voltage level detector outputs an indicator which indicates whether a voltage of the switchable power supply is above or below a voltage threshold. An isolation wrapper circuit includes a pass-through latch selectively enabled based on the output of the voltage level detector. The pass-through latch receives the propagated isolation signal and provides a value of the propagated isolation signal at its output while enabled, but maintains a latched value at its output, regardless of changes in value of the propagated isolation signal, while disabled. The wrapper circuit also includes an isolation circuit which receives signals from circuitry within the switchable power domain and selectively isolates the received signals from a second AON power domain based on the output of the pass-through latch.

Anmelder

Firma

NXP USA, Inc.

Land

🇺🇸 USA

Fachgebiete