DS1233M-3

Series:	EconoReset
Packaging:	Bulk
Part Status:	Active
Type:	Simple Reset/Power-On Reset
Number of Voltages Monitored:	1
Output:	Open Drain or Open Collector
Reset:	Active Low
Reset Timeout:	200 ms Minimum
Voltage - Threshold:	2.72V
Operating Temperature:	-40°C ~ 85°C (TA)
Mounting Type:	Through Hole
Package / Case:	TO-226-3, TO-92-3 (TO-226AA)
Supplier Device Package:	TO-92-3
Base Part Number:	DS1233M

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Introduction

The DS1233M-3 is a power management integrated circuit (PMIC) designed specifically for computer systems. It is a supervisor chip that provides control signals and power-supply monitoring to the system\'s components. The DS1233M-3 is also capable of controlling power sequencing, resetting the system and providing an enabling signal to certain components.

Application Fields

The DS1233M-3 is designed for computer systems, and its functionality is particularly useful in system-on-chip (SoC) designs, as well as multi-chip microprocessor systems. It can be used in any system where reliable system reset and power-sequence control is needed.The DS1233M-3 is designed to be used in systems with a wide range of power supplies, including 3V to 5.5V and 5V to 6V. It is particularly useful for managing the power-up sequence and reset of CMOS microprocessors, such as Intel Pentium, AMD Duron processors and similar products.The DS1233M-3 is also useful for controlling power sequencing in personal computers (PCs), workstations, and other embedded systems. It can be used to control the power-up sequenced loads, reset logic and control logic of the system.

Working Principle

The DS1233M-3 operates in two main modes: active and standby. In active mode, the chip provides power supply monitoring, reset and enabling signals, as well as sequence control. In standby mode, the chip cuts off the supply and drains all the current in the system.The primary power-supply monitoring component of the DS1233M-3 is a voltage supervisor. It monitors the input voltage of the system and provides an enabling signal to the reset logic when the voltage is within a predetermined range.The reset logic of the DS1233M-3 is an asynchronous, dual-input reset. This reset logic is always active and has an input for each power supply in the system. When an out of range voltage is detected, either at the power supplies or at the home, the reset logic will assert reset.The sequence control in the DS1233M-3 is provided by the power sequencing logic. This logic is used to ensure that all the components in the system are powered up in the correct order. It also ensures that certain components are powered down in the correct sequence.The enabling signal is provided by the enable logic. This logic is used to enable certain components, such as the clock generator, and to ensure that they are powered up in the correct sequence.

Conclusion

The DS1233M-3 is a power management integrated circuit (PMIC) designed for computer systems. It is capable of providing power supply monitoring, reset and enabling signals, as well as sequence control. It is useful for managing the power-up sequence and reset of CMOS microprocessors and other components in a system. The DS1233M-3 is suitable for use in systems with a wide range of power supplies, and is particularly useful for managing the power-up sequence and reset of CMOS microprocessors.

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