DS1231-20 Allicdata Electronics
Allicdata Part #:

DS1231-20-ND

Manufacturer Part#:

DS1231-20

Price: $ 0.00
Product Category:

Integrated Circuits (ICs)

Manufacturer: Maxim Integrated
Short Description: IC POWER MONITOR 20NS 8-DIP
More Detail: Supervisor Open Drain or Open Collector 1 Channel ...
DataSheet: DS1231-20 datasheetDS1231-20 Datasheet/PDF
Quantity: 1000
Stock 1000Can Ship Immediately
Specifications
Series: --
Packaging: Tube 
Part Status: Obsolete
Type: Simple Reset/Power-On Reset
Number of Voltages Monitored: 1
Output: Open Drain or Open Collector
Reset: Active High/Active Low
Reset Timeout: 150 ms Minimum
Voltage - Threshold: 4.37V, 4.62V
Operating Temperature: 0°C ~ 70°C (TA)
Mounting Type: Through Hole
Package / Case: 8-DIP (0.300", 7.62mm)
Supplier Device Package: 8-PDIP
Base Part Number: DS1231
Description

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Integrated circuits have become main components of modern electronic products. The DS1231-20 is a multi voltage supervisor IC featuring adjustable threshold accuracy and reset delay which is designed to monitor power supply lines and/or other voltages in standby, normal and other levels. As part of the PMIC - Supervisors family, the device is designed to detect and generate reset signals in order to avoid any intermediate malfunctions.

The device is usually used in central processing units, main memory controllers and other digital integrated circuits that require reset signals in order to maintain their operation. Furthermore, when employed in computer systems, the device provides enhanced system reliability, increased efficiency and greater dependability.

DS1231-20 includes an integrated power–on reset and a logic-level reset with selectable thresholds, reset polarity and delay times. The device is provided in a DIP-8 package, with a voltage input range of 1.5V to 10.2V. It features a reset assertion time of 15ms max, and reset de-assertion time of 25ms max. The reset output polarity is also programmable with a +/- 0.6V drop across a single output. The chip has a selectable power–on reset threshold of 2.65V to 6.35V.

The working principle of the DS1231-20 is based on the integrated Voltage Detector circuit. This circuit monitors the power supply and the logic level reset that is provided to the device. When the supply or logic level reset goes out of the valid range, the device quickly provides an active-low reset output that goes low-true/high-false. The reset output is de-asserted as long as the supply or logic level reset remains within its valid range. A hysteresis loop is used to maintain stability and prevent false triggering.

The device utilizes the reset latch circuit to react to a wide range of power supply conditions, such as low-voltage, high-voltage, and over voltage. This feature helps to minimize the occurrence of system malfunctions as a result of power supply instability. The reset output is an open-drain version, so an external pull-up resistor is required to restore it. The device also features an adjustable reset delay, allowing the designer to control the reset cycle of the device.

In summary, the DS1231-20 is part of the PMIC – Supervisors family, which is designed to monitor power supply lines, detect and generate reset signals, and minimize power supply instability. It includes an integrated power–on reset and a logic-level reset with adjustable thresholds, reset polarity and delay times. Its voltage input range is from 1.5V to 10.2V and it has a reset assertion time of 15ms max, and reset de-assertion time of 25ms max. It utilizes the reset latch circuit to react to a wide range of power supply conditions, and it provides an open-drain reset output, so an external pull-up resistor is required to restore the output. The device features adjustable reset delay, allowing the designer to control the reset cycle of the device.

The specific data is subject to PDF, and the above content is for reference

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