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LS1240A The STMicroelectronics LS1240A is a Tone Ringer IC designed for telecom applications. It operates with a 26V supply voltage and a current consumption of 30mA.
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LS1240A

Available from 2 distributors
Mfr Name: STMicroelectronics
STMicroelectronics
The STMicroelectronics LS1240A is a Tone Ringer IC designed for telecom applications. It operates with a 26V supply voltage and a current consumption of 30mA.
✓ Total Stock: 10,045 pcs

LS1240A Available from 2 distributors

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✓ Non-Authorised
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Components Technology Group, Inc. ✓
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10,000 pcs
On Request
10000 pcs On Request 1 On Request On Request On Request On Request On Request
Partservice ✓
Non-Authorised Inventory information
45 pcs
On Request
45 pcs On Request 1 On Request On Request On Request On Request On Request
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LS1240A Specifications Quick View

Most important parameters for selection – full specs in datasheet.
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LS1240A Description

Short technical summary and product information.

The STMicroelectronics LS1240A is a monolithic integrated circuit designed to replace mechanical bells in telephone sets. It interfaces with an electro-acoustical converter and can directly drive a piezoceramic converter or a dynamic loudspeaker.

 

Key electrical specifications include a supply voltage of 26V and a current consumption of 30mA. The operating temperature range is -40°C to 70°C. The device generates two tone frequencies that are switched by an internal oscillator.

 

This IC is available in an 8-Mini DIP package and an 8-SOIC package, supporting through-hole mounting. The tone and switching frequencies can be adjusted using external components, offering design flexibility.

 

The LS1240A is suitable for use in telephone sets and other telecommunication equipment requiring an electronic ringer function.

LS1240A Quick Information

Product Type: Telecom Interface IC
Canonical Name: STMicroelectronics LS1240A Tone Ringer IC
Subcategory: Tone Ringer

LS1240A Compliance

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

LS1240A Features

  • Electronic two-tone ringer IC
  • 26V supply voltage
  • 30mA current consumption
  • Adjustable tone and switching frequencies
  • 8-DIP and 8-SOIC packages

LS1240A Applications

  • Used in telephone line ringers and alerts.
  • Ideal for telecom tone generation circuits.
  • Suitable for driving piezoceramic buzzers.
  • Applicable in voice communication signaling devices.
  • Used in integrated telecom interface modules.

LS1240A FAQs

5 frequently asked questions generated from this part’s specifications.
What is the supply voltage for the LS1240A?

The supply voltage for the LS1240A is 26V.

What is the operating temperature range of the LS1240A?

The LS1240A operates in a temperature range of -40°C to 70°C.

What package options are available for the LS1240A?

The LS1240A is available in 8-Mini DIP and 8-SOIC packages.

What is the function of the LS1240A?

The LS1240A functions as an electronic tone ringer.

What are the output frequencies of the LS1240A?

The output frequencies range from 1.33kHz to 2.14kHz.

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