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HT8A978B - 5-Function Remote Controller

This page provides the datasheet information for the HT8A978B, a member of the HT8A977B 5-Function Remote Controller family.

Description

The HT8A977B and HT8A978B provide complete control functions to the remote-controlled toy.

The HT8A977B has five input pins corresponding with the five function buttons i.e, forward, backward, rightward, leftward and turbo.

Features

  • HT8A977B works as encoder and HT8A978B works as decoder.
  • Five pins for five control functions.
  • Operating power-supply voltage: 2.5V to 5.0V (978B), 1.8V to 5.0V(977B).
  • Auto-power-off and oscillation-off if no press on any button (977B).
  • Press on any button to wake up (977B).
  • One output pin used for external power control (977B).
  • On-chip oscillator with an external resistor.
  • On-chip reversing amplifiers (978B).
  • Low operating current.
  • Few external.

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Datasheet preview – HT8A978B

Datasheet Details

Part number HT8A978B
Manufacturer HOTCHIP
File Size 430.12 KB
Description 5-Function Remote Controller
Datasheet download datasheet HT8A978B Datasheet
Additional preview pages of the HT8A978B datasheet.

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Full PDF Text Transcription

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HT8A977B/978B 5-Function Remote Controller Description The HT8A977B and HT8A978B provide complete control functions to the remote-controlled toy. The HT8A977B has five input pins corresponding with the five function buttons i.e, forward, backward, rightward, leftward and turbo. The encoding circuit in the HT8A977B sends digital codes to the two output pins SO and SC. The digital codes correspond to the definite function buttons or their combinations. The SO and SC outputs are used in wireless and infra-red applications respectively. The HT8A978B has five output pins corresponding with the five actions.
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