• Part: HT93214AT
  • Description: 1-memory Tone/Pulse Dialer
  • Manufacturer: Holtek Semiconductor
  • Size: 194.70 KB
HT93214AT Datasheet (PDF) Download
Holtek Semiconductor
HT93214AT

Description

The HT93214 are dialer series designed for low cost telephone set applications with expandable features such as Lock function, keytone and LCD display interface. With a 4 ´ 4 keyboard, it performs normal tone/pulse switchable dialing, and provides one-key redialing function with a 32-digit memory for speed dialing.

Key Features

  • Operating Voltage: 2.0V~5.5V
  • Low standby current
  • Low memory retention current: 0.1mA (Typ.)
  • Tone/Pulse switchable
  • 32 (pulse)/31 (tone) digits for redialing
  • Pause and P ® T key for PBX
  • 4´4 keyboard matrix
  • 3.58MHz crystal or ceramic resonator
  • Hand-free control Patent Number: 86474, 84545(R.O.C)
  • Pause, P ® T can be saved for redialing