Sanyo Electric LC72701M
The LC73701M is a DTMP/pulse output dual-system dialer CMOS LSI for use in push-button telephones. It provides an on-chip serial interface and operates under the control of data sent over that serial interface. The LC73701M can be easily controlled by the system CPU using this dedicated interface.| Part No. | LC72701M |
|---|---|
| Datasheet | LC72701M Download |
| Manufacturer |  Sanyo Electric |
| Description | Serial Interface Dialler |
| Buy | Stock & Price |
CMOS LSI No. 5561 LC73701M Serial Interface Dialler Overview
● The dial pulse make ratio can be specified to be either 33 or 39%.
● Wide operating voltage range Pulse mode: VDD = 1.5 to 5.5 V DTMF mode: VDD = 2.0 to 5.5 V Package Dimensions unit: mm 3095-MFP18 [LC73701M] Functions
● Functions as a dialer that is controlled over a serial interface.
● The built-in oscillator circuit (fOSC = 4.19 MHz) can use either a crystal oscillator or a ceramic resonator as its oscillator element.
● The adoption of a high-precision (±0.04%) DTMF signal frequency divider circuit allows a ceramic resonator to be used as the oscillator element.
● The buffer memory can store up to 32 digits of 5-bit data.
● Mode change and pause commands can also be stored as data in the buffer memory.
● Pauses can be inserted automatically on mode changes (auto-pause).
● A pause can be cancelled during that pause.
● The mode change function supports changing from pulse to tone (single direction).
● Generates all 16 DTMF signals.
● The dial pulse make ratio can be specified to be either 33 or 39%.
● Wide operating voltage range Pulse mode: VDD = 1.5 to 5.5 V DTMF mode: VDD = 2.0 to 5.5 V Package Dimensions unit: mm 3095-MFP18 [LC73701M] Functions
● Functions as a dialer that is controlled over a serial interface.
● The built-in oscillator circuit (fOSC = 4.19 MHz) can use either a crystal oscillator or a ceramic resonator as its oscillator element.
● The adoption of a high-precision (±0.04%) DTMF signal frequency divider circuit allows a ceramic resonator to be used as the oscillator element.
● The buffer memory can store up to 32 digits of 5-bit data.
● Mode change and pause commands can also be stored as data in the buffer memory.
● Pauses can be inserted automatically on mode changes (auto-pause).
● A pause can be cancelled during that pause.
● The mode change function supports changing from pulse to tone (single direction).
● Generates all 16 DTMF signals.
