S-1000C33-M5T1U

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The S-1000C33-M5T1U is an ultra-low power supply supervisory circuit (PMIC - Supervisors) with excellent reset and supply monitoring capabilities. This device is used to monitor power supplies and provide a reset to a host processor when the power supply voltage drops below an adjustable voltage threshold.

It also provides a "power pre-flush" feature that allows a host processor to be reset and reinitialized when a power supply voltage is about to come back up from a low operating level. This feature is useful for protecting the host processor from spurious interrupts caused by the power supply bouncing when it transitions from a low voltage to a high voltage.

Applications for the S-1000C33-M5T1U include embedded systems, automotive applications, medical devices and consumer electronics. The S-1000C33-M5T1U has several features designed to optimize power supply monitoring and resetting, including an adjustable threshold, integrated watchdogs and support for multiple power supplies.

The S-1000C33-M5T1U uses an adjustable analog comparator to monitor the supply voltage. When the supply voltage drops below the predefined threshold, the RESET pin is driven low, signaling the processor to reset. This Reset signal can be I2C driven or configured as a watchdog timer to provide a reset in response to a peripheral timing failure. The S-1000C33-M5T1U also monitors up to three power supplies, with each power supply being independently adjustable.

The S-1000C33-M5T1U also has a power pre-flush feature, which is activated when the voltage of one of the monitored power supplies is about to rise again from a low voltage. When this happens, the RESET pin is driven low to reset the processor and reinitialize it again before the power supply voltage rises and potentially causes spurious interrupts. This power pre-flush feature helps protect the processor from unexpected power supply glitches.

The S-1000C33-M5T1U also offers a number of other features, including an open-drain output, a wide supply voltage range (1.8-5.5V), a selectable reset timeout, an internal regulator, and the ability to monitor multiple power supply voltages. It is ESD-resistant and has an operating temperature range of -40 to +125 degrees C.

The S-1000C33-M5T1U is an excellent choice for embedded systems, automotive applications, medical devices, and consumer electronics as it offers reliable power supply monitoring and resetting capabilities with an adjustable power supply threshold. It also provides a power pre-flush feature to ensure the processor is reset and reinitialized before voltage transitions can cause spurious interrupts. The S-1000C33-M5T1U also offers several other features such as an open drain output, wide voltage range, and a selectable reset timeout.

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