DS1231-20 DS1231-20 is a simple reset/power-on reset supervisor IC from Analog Devices / Maxim Integrated. It monitors one voltage, offers open drain/open collector output, and is available in an 8-PDIP package.
Mfr Part #:

DS1231-20

Available from 2 distributors
Mfr Name: Analog Devices / Maxim Integrated
Analog Devices / Maxim Integrated
DS1231-20 is a simple reset/power-on reset supervisor IC from Analog Devices / Maxim Integrated. It monitors one voltage, offers open drain/open collector output, and is available in an 8-PDIP package.
✓ Total Stock: 469 pcs
$ Price Range: $0.75

DS1231-20 Available from 2 distributors

✓ Authorised
✓ Non-Authorised
Distributor Stock Pricing MOQ PKG Lead Time Date Code On Order Quantity On Order Delivery
Non-Authorised Inventory information
463 pcs
463 pcs On Request 1 On Request On Request 1536+ On Request On Request
Non-Authorised Inventory information
6 pcs
6 pcs On Request 1 On Request On Request On Request On Request On Request

DS1231-20 Specifications Quick View

Most important parameters for selection – full specs in datasheet.
Category
Manufacturer Name
Mounting Type
Number of Voltages Monitored
Operating Temperature
Output
Reset
Reset Timeout
Supplier Device Package
Type
Voltage

DS1231-20 Description

Short technical summary and product information.

DS1231-20 is a simple reset/power-on reset supervisor integrated circuit from Analog Devices / Maxim Integrated. It monitors a single voltage supply, with a voltage supply specification of 4.37V and 4.62V. The device provides a reset output in open drain or open collector configuration, supporting both active high and active low reset signals. The minimum reset timeout is 150ms, ensuring reliable system initialization.

 

The supervisor is designed for power management applications where proper reset behavior is critical. With a single voltage monitor, it is suitable for systems requiring simple reset generation. The device operates over a temperature range of 0°C to 70°C, making it suitable for commercial environments.

 

The DS1231-20 is housed in an 8-PDIP package (8-DIP with 0.300 inch width, 7.62mm), with through-hole mounting. This package is commonly used for prototyping and applications where through-hole assembly is preferred.

DS1231-20 Quick Information

Product Type: Supervisor IC
Canonical Name: DS1231-20 Simple Reset/Power-On Reset Supervisor IC
Subcategory: Simple Reset/Power-On Reset

DS1231-20 Compliance

RoHS Status: RoHS Compliant
Moisture Sensitivity Level (MSL): 1 Unlimited
REACH Status: REACH Unaffected

DS1231-20 Estimated Pricing

Qty Low High
1+ $0.75 $0.75

Estimated market price range - modelled values for guidance only, not live distributor offers.

DS1231-20 Features

  • Monitors a single power supply voltage.
  • Provides open drain/open collector output.
  • Minimum reset timeout of 150ms.
  • Available in 8-pin PDIP package.
  • Operates from 0°C to 70°C.

DS1231-20 Applications

  • Warns processor of impending power failure
  • Enables orderly system shutdown during power loss
  • Prevents memory corruption from power transients
  • Automatically restarts processor after power returns
  • Replaces power-up reset circuitry in systems

DS1231-20 FAQs

7 frequently asked questions generated from this part’s specifications.
What is the supply voltage specification for the DS1231-20?

The voltage supply is 4.37V and 4.62V.

What is the reset timeout of the DS1231-20?

The minimum reset timeout is 150ms.

How many voltages can the DS1231-20 monitor?

It monitors 1 voltage.

What output types are available on the DS1231-20?

Open drain or open collector output.

What is the operating temperature range of the DS1231-20?

0°C to 70°C.

What package is the DS1231-20 available in?

8-PDIP (8-DIP 0.300 inch, 7.62mm).

What reset output polarity does the DS1231-20 provide?

Active high and active low reset outputs.

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