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NT93403-05

NOVATEK
Part Number NT93403-05
Manufacturer NOVATEK
Description Multi-Feature Phone LSI
Published Oct 5, 2014
Detailed Description NT93403-05x PRELIMINARY Multi-Feature Phone LSI With LCD Driver Features 4-bit CMOS n The NT93403-05X is a multi-featu...
Datasheet PDF File NT93403-05 PDF File

NT93403-05
NT93403-05

Overview
NT93403-05x PRELIMINARY Multi-Feature Phone LSI With LCD Driver Features 4-bit CMOS n The NT93403-05X is a multi-feature tone/pulse dialer based on a CMOS 4-bit single chip microcomputer with 5120 X 10 bit ROM and 1204 X 4 bit RAM capacity n Built-in LCD driver and direct interface with 16digit LCD display Dialing n Dialing parameters are set by external diodes and the SELECT pin n Built-in high-precision dual-tone multi-frequency (DTMF) generator and on-chip pulse dialer n Switchable tone/pulse dialing n Dialing speeds of 10 or 20 pps and Make/Break Ratio of 40/60 or 33/67 n Normal or Sweden/Denmark modes for number of pulses selectable n Minimum DTMFsignal duration/separation guaranteed n Chain dialing n Manual dialing will execute as many digits as entered n Redial function (up to 48 digits) Long distance control n Three long distance control functions are available: (1) Key Lock: The chip will detect the key lock status (2) Pass Code: The chip will check pass code.
(pass code replaces key) (3) Key and pass code n With the diode setting, three defaults can be chosen: 0,168 n Three-digit restriction codes are user-programmable n For restriction dialing, "0" and "168" can be restricted simultaneously n Complete and strict restriction dialing function.
For example, "pause" key + "0" key will not dial out for "0" restriction dialing n "SOS" key is provided for forgotten pass codes, which when depressed, automatically resets to 000 Memory n 13 24-digit memory locations: 3 direct and 20 indirect memories n 3 single button dialing memories n One-touch auto-dialing and abbreviated dialing n "MEM"key used for abbreviated dialing n "EM1", "EM2" and "EM3" memory locations are provided Pause, Flash, Hold, Mute, P/T n Pause time programmable from 1 to 5 seconds (1 second resolution) by key entry n Flash time programmable from 90, 100 msec to 900 msec (100 msec resolution) by key entry n Manual HOLD key controls HOLDOUT signal.
Hold mode can be released by HOLDIN input pin n...


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