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PDF NT93403-05 Data sheet ( Hoja de datos )
| Número de pieza | NT93403-05 | |
| Descripción | Multi-Feature Phone LSI | |
| Fabricantes | NOVATEK | |
| Logotipo |  |
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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 16-
digit 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 HOLD LCD indicator (blinking) and HOLDOUT for
music during hold
n Manual MUTE key controls XMUTE signal
n Pulse to tone key function
Other Features
n 5 sets of the last dialed phone numbers (up to 24
digits) and dialing time (mm-ss)
n LCD self testing function
n Calendar and real time clock display with 12-hour
format and AM/PM indicator
n Key-in tone output for valid key data
n Error display and error beep sounds when sequence
is entered incorrectly
n Speaker phone control output and LED control pin
are provided
n Reset pin provided
n 5 X 7 matrix keypad interface
n Operating Voltage Range: 2.5V - 5.5V
1
1 page  
NT93403-05X
Pin Description (continued)
Pin No.
25
26
27
28
29
30
31
Symbol
COL5
COL3
COL2
COL1/ HOLDIN
ROW6
ROW5 /HOLDOUT
HS
32
33 - 64
65 - 68
69
70, 71
72
73
74
75
76
77
78
79
80
ROW1
SEG1-32
COM1-4
VLCD
NC
TEST
TONE
COL4
VDD
OSC1
OSC2
RESET
NC
NC
I/O
I Keyboard interface
Description
I Keyboard interface
I Keyboard interface
I Keyboard interface and hold release input
O Keyboard interface
O Keyboard interface and hold control output
I Hook switch input
Low: off hook
High: on hook
O Keyboard interface
O LCD interface
O LCD interface
I Power supply for LCD driver. Should be floating
No Connection
I Connect to VDD in normal operation
O DTMF signal output
I Keyboard interface
Power supply (2.5 V - 5.5 V)
System Clock Oscillator input
A 3.5795 MHz crystal is used
I Resets the LSI. High active
No Connection
No Connection
5
5 Page 
NT93403-05X
Normal Dialing & Receiving
n Take phone off hook, or press the SPEAKER key.
n Enter desired number from the keyboard, including
pause, flash and tone keys. The FLASH key
disconnects line and initializes dial buffer.
n The display shows *,#,pause,flash and tone with
different symbols.
n As many digits as necessary may be entered without
restriction.
n The number will be dialed out in TONE or PULSE,
depending on the SELECT pin (TONE/PULSE switch
Dialing
key). DIALING may be changed from PULSE to
TONE by pressing the */TONE key.
1) Tone dialing rate: real time dialing (minimum tone
duration is 98 msec).
2) Pulse dialing rate: 10 or 20 pps. M/B ratio is 33/67
or 40/60. The number of pulses depends on the
SELECT and ROW5 pins.
n "*" and "#" are not dialed out in PULSE mode.
n DTMF tone output duration depends on how long the
key is depressed. Minimum tone duration and
inter-digit pause times are 98 msec.
1. Lift the handset, or press the SPEAKER key.
2. Enter desired phone number 9 3 4 . . . 0 .
3. When call is finished, hang up the handset, or press the SPEAKER key.
Receiving
1. When the telephone rings, lift the handset, or press the SPEAKER key.
2. When call is finished, hang up the handset, or press the SPEAKER key.
Redialing
n Lift the handset, press the SPEAKER key, or press the
FLASH key after dialing a number.
n Press the REDIAL key once. The number stored in
the redial buffer will be dialed, including pause,
tone, one touch dialing and abbreviated auto dialing.
Redialing
n No redial function is executed if more than 48 digits
(including memory dialing) are entered during dialing.
An error beep sounds and "FULL" will be displayed on
the LCD if number dialed exceeds 48 digits.
1. Lift the handset, press the SPEAKER key, or press the FLASH key after dialing a number.
2. Press the REDIAL key.
3. Numbers stored in the redial buffer will automatically be dialed out.
Chain Dialing
n Take phone off the hook, or press the SPEAKER
key.
n Any combination of dialing methods can be used.
Chain Dialing
n Press the one-touch dial key or abbreviated auto
dialing key in sequence to initiate continuous dialing.
1. Lift the handset, or press the SPEAKER key.
2. Press the M01 M02 M03 keys.
3. The telephone numbers stored in M01 + M02 + M03 will automatically be dialed out.
11
11 Page | ||
| Páginas | Total 37 Páginas | |
| PDF Descargar | [ Datasheet NT93403-05.PDF ] | |
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