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MC14489 - Multi-Character LED Display/Lamp Driver

Description

section.

This device contains protection circuitry to guard against damage due to high static voltages or electric fields.

impedance circuit.

Features

  • data retention plus decode and scan circuitry, thus relieving processor overhead. A single, current.
  • setting resistor is the only ancillary component required. A single device can drive any one of the following: a 5.
  • digit display plus decimals, a 4.
  • 1/2.
  • digit display plus decimals and sign, or 25 lamps. A special technique allows driving 5 1/2 digits; see Figure 16. A configuration register allows the drive capability to be partitioned off to suit many additional ap.

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Full PDF Text Transcription (Reference)

The following content is an automatically extracted verbatim text from the original manufacturer datasheet and is provided for reference purposes only.

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MOTOROLA SEMICONDUCTOR TECHNICAL DATA Order this document by MC14489/D Multi-Character LED Display/Lamp Driver CMOS The MC14489 is a flexible light–emitting–diode driver which directly interfaces to individual lamps, 7–segment displays, or various combinations of both. LEDs wired with common cathodes are driven in a multiplexed–by–5 fashion. Communication with an MCU/MPU is established through a synchronous serial port. The MC14489 features data retention plus decode and scan circuitry, thus relieving processor overhead. A single, current–setting resistor is the only ancillary component required. A single device can drive any one of the following: a 5–digit display plus decimals, a 4–1/2–digit display plus decimals and sign, or 25 lamps.
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