HT9320 Datasheet, PDF (1/30 Pages) Holtek Semiconductor Inc – 22-Memory Tone/Pulse Dialer

HT9320 Series
22-Memory Tone/Pulse Dialer
Features
Patent Number: 64097, 86474, 113235(R.O.C.), 5424740(U.S.A.)
· Universal specification
· Operating voltag0e: 2.0V~5.5V
· Low standby current
· Lowmemoryretentioncurrent:0.1mA(typ.)
· Tone/pulse switchable
· Interface with LCD driver
· 32 digits for redialing
· 32 digits for the SA memory dialing
· One-key redialing
· Pause and P®T key for PBX
· 3.58MHz crystal or ceramic resonator
· Hand-free control
· Hold-line control
· Pause, P®T can be saved for redialing
· On-hook store function
· Keytone function
· Lock function
· Resistor options
- _{M/B ratio}
- _{Flash function and flash time}
- _{Pause and P®T duration}
- _{Pulse number}
- _{Inter-digit pause time for 10pps}
· Memory number: 22 memories
General Description
The HT9320 series tone/pulse dialers are
CMOS LSI for telecommunication systems.
They are designed to meet various dialing spec-
ifications through resistor option matrix.
The HT9320 series are offered in six different
versions. The different functions of the six ver-
sions are listed in the selection table. The
HT9320A, HT9320H versions provide the
on-hook store function; the HT9320B version
provides the LCD interface function; the
HT9320K version provides the keytone func-
tion; the HT9320L version provides both the
LCD interface function and IDD lock function.
The six versions also supply the hold-line and
hand-free functions, which are suitable for feature
phone applications.
HT9320 series provide SA, Redial and 20
one-touch/two-touch memory dialing. If the
keyboard includes M1~M20 keys it can be used
as one-touch memory dialing. Otherwise, it
works as two-touch (PAGE®M1~M10) or
three-touch(A®PAGE®0~9) memory dialing
for speed dialing in either pulse or tone mode.
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July 21, 1999