HT9320_02 Datasheet, PDF (1/29 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
· HT9320A/B/H/K/L-X: 28-pin DIP package
HT9320C: 22-pin SKDIP package
General Description
The HT9320 series tone/pulse dialers are CMOS LSI for
telecommunication systems. They are designed to meet
various dialing specifications through resistor option
matrix.
The HT9320 series are offered in six different versions.
The different functions of the six versions are listed in
the selection table. The HT9320A, HT9320H versions
provide the on-hook store function; the HT9320B ver-
sion provides the LCD interface function; the HT9320K
version provides the keytone function; the HT9320L ver-
sion 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 in-
cludes M1~M20 keys it can be used as one-touch mem-
ory 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.
Rev. 1.10
1
October 1, 2002