HT9320L Datasheet | Holtek Semiconductor

Features - - - - - - - - - - - - HT9320 Series Patent Number: 64097, 86474, 113235(R.O.C.), 5424740(U.S.A.) - - - - - - Universal specification Operating voltag0e: 2.0V~5.5V Low standby current Lowmemoryretentioncurrent:0.1m A(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 telemunication 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 version provides the LCD interface function; the HT9320K version provides the keytone function; 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. July 21, 1999 HT9320 Selection Table Function Part No. Memory Hold- Hand LCD Flash Dialing Line Free Interface Function SA, R M1~M20 SA, R M1~M20 SA, R M1~M20 SA, R M1~M20 SA, R M1~M20 SA, R M1~M20 Control Digit Control Digit Control Digit Digit Control Digit Control Digit Flash...