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UM91215A Specifications

Detailed technical information and Application Scenarios

Product Details

PartNumberManufactorQuantityAvailability
UM91215AUMC140Yes

UM91215A is a DTMF (Dual-Tone Multi-Frequency) receiver IC manufactured by UMC (United Microelectronics Corporation).

The UM91215A is a DTMF (Dual-Tone Multi-Frequency) receiver IC manufactured by UMC (United Microelectronics Corporation).

Specifications:

  • Supply Voltage: 2.5V to 5.5V
  • Operating Temperature Range: -20°C to +70°C
  • Low Power Consumption: Suitable for battery-operated devices
  • DTMF Decoding: Accurately decodes standard DTMF tones (0-9, *, #, A-D)
  • Filtering: Built-in dial tone rejection
  • Output Format: 4-bit binary or 3-of-8 code
  • Package Type: Typically available in DIP or SOP packages

Descriptions:

The UM91215A is a CMOS DTMF receiver designed for telecommunication applications. It decodes incoming DTMF signals into digital outputs, making it useful in telephone systems, remote control devices, and security systems.

Features:

  • High Noise Immunity: Reliable decoding in noisy environments
  • Adjustable Guard Time: Configurable to prevent false detections
  • Standby Mode: Reduces power consumption when inactive
  • Simple Interface: Easy integration with microcontrollers and logic circuits
  • Compliance: Meets industry-standard DTMF specifications

This information is based on the manufacturer's datasheet and technical documentation.

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