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HM91710B

ELAN Microelectronics Corp
Part Number HM91710B
Manufacturer ELAN Microelectronics Corp
Description TONE/PULSE SWITCHABLE DIALER
Published Mar 26, 2005
Detailed Description HM91710A/B HM91710A/B TONE/PULSE SWITCHABLE DIALER TONE/PULES SWITCHABLE DIALER GENERAL DESCRIPTION The HM91710A/B are ...
Datasheet PDF File HM91710B PDF File

HM91710B
HM91710B

Overview
HM91710A/B HM91710A/B TONE/PULSE SWITCHABLE DIALER TONE/PULES SWITCHABLE DIALER GENERAL DESCRIPTION The HM91710A/B are Tone/Pulse switchable dialer which are fabricated in CMOS technology with wide operating voltage for both tone and pulse mode, and consumes very low memory retention current in ON-HOOK state.
FEATURES • • • • • • • • Tone/pulse switchable dialer.
One 32-digit last number redial memory.
Pulse to tone (P→T) is provided for PBX operation.
Flash key is available.
Minimum tone duration is 98ms or 83ms.
Minimum intertone pause is 98ms or 83ms.
Uses 3.
579545 MHz crystal or ceramic resonator.
Many options can be selected.
Mode (10 PPS ; 20 PPS ; Tone) M/B ratio (40 : 60 ; 33 : 66) Pause time (3.
6s) Flash function (RESET) P→T pause time (3.
6s) Flash time (600ms; 300ms; 100ms; or 80ms).
Mixed dialing.
Handfree function is provided for speaker phone application.
Power on reset circuit is provided.
Package in DIP18 or DIP16.
• • • • • PIN ASSIGNMENTS HM91710A HM91710B EM917...


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