DS1815R-20/T&R The DS1815R-20/T&R is a supervisor IC from Dallas Semiconductor. It automatically restarts a microprocessor after power failure and maintains reset for 150ms after VCC returns to an in-tolerance condition.
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DS1815R-20/T&R

Available from 1 distributors
Mfr Name: Dallas Semiconductor
Dallas Semiconductor
The DS1815R-20/T&R is a supervisor IC from Dallas Semiconductor. It automatically restarts a microprocessor after power failure and maintains reset for 150ms after VCC returns to an in-tolerance condition.
Total Stock: 3,040 pcs
$ Price Range: $0.75

DS1815R-20/T&R Available from 1 distributor

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DS1815R-20/T&R Specifications Quick View

Most important parameters for selection – full specs in datasheet.
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DS1815R-20/T&R Description

Short technical summary and product information.

The DS1815R-20/T&R is an EconoReset supervisor IC manufactured by Dallas Semiconductor. It is designed to automatically restart a microprocessor after a power failure. The device maintains a reset signal for approximately 150ms after VCC returns to an in-tolerance condition, allowing the power supply and processor to stabilize.

 

Key features include a precision temperature-compensated voltage reference and comparator circuit to monitor the power supply status. It offers accurate 5%, 10%, or 20% power monitoring and a push-pull output for low current operation. The operating temperature range is from -40°C to +85°C.

 

This supervisor is available in a space-saving SOT-23-3 surface-mount package. It reduces the need for discrete components in power monitoring and reset circuits.

DS1815R-20/T&R Quick Information

Product Type: Supervisor
Series: DS1815
Canonical Name: DS1815R-20/T&R 3.3V EconoReset with Push-Pull Output Supervisor
Subcategory: Supervisor

DS1815R-20/T&R Compliance

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

DS1815R-20/T&R Estimated Pricing

Qty Low High
1+ $0.75 $0.75

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

DS1815R-20/T&R Features

  • Automatically restarts microprocessor after power failure.
  • Maintains reset for 150ms after VCC returns.
  • Precision temperature-compensated voltage reference.
  • Available in SOT-23-3 surface-mount package.
  • Push-pull output for low current operation.

DS1815R-20/T&R Applications

  • Provides reset signal for microcontrollers and digital ICs.
  • Ensures proper system startup in power-up sequences.
  • Monitors supply voltage drops in portable electronics.
  • Suitable for automotive and industrial environments.

DS1815R-20/T&R FAQs

7 frequently asked questions generated from this part’s specifications.
What is the supply voltage range?

The supply voltage range is 0V to 5.5V.

What package is the DS1815R-20/T&R available in?

It is available in a SOT-23-3 surface mount package.

What is the operating temperature range?

The operating temperature range is -40°C to +85°C.

What is the reset output type?

Active low reset output.

What are the absolute maximum specifications for voltage on VCC and RST pins?

Voltage on VCC pin relative to ground: -0.5V to +7.0V. Voltage on RST pin relative to ground: -0.5V to +5.5V.

What is the soldering temperature for the device?

The maximum soldering temperature is 260°C for 10 seconds.

What is the storage temperature range?

The storage temperature range is -55°C to +125°C.

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