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NT93403-05x

PRELIMINARY

 

Multi

-

Feature Phone LSI With LCD Driver

1

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

Summary of Contents for NT93403-05X

Page 1: ...e 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 diali...

Page 2: ... 34 35 36 37 38 41 27 28 29 30 42 63 43 48 49 50 51 52 44 45 46 47 58 59 60 61 62 53 54 55 56 57 TONEOUT SELECT NC SPKCTL NC NC NC NC NC X1 X2 GND NC NC NC SEG31 SEG30 SEG29 SEG28 SEG27 SEG26 SEG25 SEG24 SEG23 SEG22 SEG21 SEG20 SEG19 SEG18 SEG17 SEG16 SEG15 SEG14 SEG11 SEG12 ROW4 NC ROW3 ROW2 XMUTE MUTE SEG13 NC COL5 COL3 COL2 COL1 HOLDIN ROW6 ROW5 HOLDOUT HS ROW1 SEG1 SEG2 SEG3 SEG4 SEG5 SEG6 SEG...

Page 3: ...sh key REDIAL Redial and one key redial key HOLD Hold key STORE Store key PASSWORD Password setting key MUTE Mute control key SPEAKER HANDS FREE mode key EM1 EM2 EM3 One touch emergency recall key LD Line disconnect key CLOCK CLOCK KEY TIMER Stopwatch Start stop Key UP Up searching key for 5 last sets of dialed numbers and time DOWN Down searching key for 5 last sets of dialed numbers and time TON...

Page 4: ...ch control Normal low When message function is active this pin will go high to connect line Speaker phone on high Speaker phone off low HS pin high low low 7 10 NC No Connection 11 NC No Connection 12 ROW4 O Keyboard interface 13 NC No Connection 14 15 X1 X2 Watch oscillator input A 32768Hz crystal is used 16 GND Ground 17 ROW3 O Keyboard interface and LED driver 18 ROW2 O Keyboard interface pin 1...

Page 5: ...31 HS I Hook switch input Low off hook High on hook 32 ROW1 O Keyboard interface 33 64 SEG1 32 O LCD interface 65 68 COM1 4 O LCD interface 69 VLCD I Power supply for LCD driver Should be floating 70 71 NC No Connection 72 TEST I Connect to VDD in normal operation 73 TONE O DTMF signal output 74 COL4 I Keyboard interface 75 VDD Power supply 2 5 V 5 5 V 76 77 OSC1 OSC2 System Clock Oscillator input...

Page 6: ...Y SELECT JP3 JP4 SELECT JP5 SELECT ROW3 ROW4 JP6 JP7 SELECT JP8 SELECT ROW5 ROW6 OPENED Tone Dialing CLOSED Pulse Dialing OPENED Free Dialing CLOSED Key Locked Restriction dialing OPENED PASSWORD SETTING DISABLE CLOSED SET PASSWORD TO 000 OPENED Restriction no 168 off CLOSED Restriction no 168 on OPENED 40 60 MBR CLOSED 33 67 MBR OPENED 10 PPS CLOSED 20 PPS OPENED 600 ms CLOSED 100 ms OPENED N PUL...

Page 7: ...IVE R1 50KΩ 200KΩ r 150KΩ Since large LCD panels need a large driving current it is possible the internal dividing resistor circuit cannot provide the correct bias voltage In this external resistors can solve this problem However small external resistors result in more power dissipation Hence external resistors must be experimentally determined Also R1 should be experimentally determined VLCD driv...

Page 8: ...NT93403 05X 8 If the HOLD indicator is not provided on the LCD HOLDOUT pin can be used to drive LED as HOLD indicator ...

Page 9: ...SEG15 SEG16 SEG17 SEG18 SEG19 SEG20 SEG21 SEG22 COM1 f7 a7 f8 a8 f9 a9 f10 a10 f11 a11 COM2 g7 b7 g8 b8 g9 b9 g10 b10 g11 b11 COM3 e7 c7 e8 c8 e9 c9 e10 c10 e11 c11 COM4 d7 d8 MTE d9 d10 d11 LCD SEG23 SEG24 SEG25 SEG26 SEG27 SEG28 SEG29 SEG30 SEG31 SEG32 COM1 f12 a12 f13 a13 f14 a14 f15 a15 f16 a16 COM2 g12 b12 g13 b13 g14 b14 g15 b15 g16 b16 COM3 e12 c12 e13 c13 e14 c14 e15 c15 e16 c16 COM4 d12 d...

Page 10: ...yed 8 If any key is incorrectly entered the key is ignored 9 If real time clock is not set after power on reset clock display will blink Pressing CLOCK key can stop this blinking MONTH DAY HOUR MINUTE STORE AM PM Stopwatch n Stopwatch timer is provided up to 59 minutes and 59 seconds n Display shows minutes and seconds at month date display location n Timer will stop by either going on hook or by ...

Page 11: ...andset 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 an...

Page 12: ...NT93403 05X 12 ...

Page 13: ... 2 3 STORE EM1 123 STORE EM2 3 6 9 STORE EM2 369 STORE 1 0 1 4 7 STORE M10 147 STORE 0 4 2 5 8 STORE M04 258 n To exit the memory storage sequence without modifying the contents of memory skip step 4 or press the CLOCK key n If more than 24 digits are antered an error beep will sound and FULL will be dispalyed n If an invalid key is entered repeat entire sequence n Total memory size is 13 memory l...

Page 14: ...be dialed out Abbreviated auto dialing n Two touch auto dialing Take the phone off the hook or press the SPEAKER key Press the MEM key Enter desired memory location number from 01 10 The number stored in memory will be dialed out One touch auto dialing 1 Lift the handset or press the SPEAKER key 2 Press the EM1 station number 3 The contents of EM1 will be dialed out Abbreviated Dialing Two touch a...

Page 15: ...g FLASH as a Redial Key When Line is Busy 1 Lift handset or press the SPEAKER key 2 Enter desired phone number For example 9 3 4 0 3 Press the FLASH key 4 Press the REDIAL key 5 The phone number 9340 will be dialed out Using FLASH as a PABX Switch 1 Lift handset or press the SPEAKER key 2 Press the FLASH key 3 Press a switching number For example 7 7 0 4 The phone number will switch to 770 PROGRAM...

Page 16: ...ime can be set from 1 to 5 seconds with 1 second resolution n Pause time setting procedure 1 Press the STORE key once 2 Press the PAUSE key 3 Enter desired pause time from 1 to 5 seconds 4 Press the STORE key once again to confirm the setting n To exit the above sequence without modifying the original data skip step 4 or press the CLOCK key n If any incorrect key is entered repeat entire sequence ...

Page 17: ...The HOLD mode can also be released by another phone set The HOLDIN is used as the Hold Release pin Mute Control Using Mute 1 During the phone call press the MUTE key 2 Listener will be unable to hear speaker s voice and the SPEAKER LCD symbol blink 3 Press the MUTE key again to release MUTE PASSWORD Function n When COL2 is not connected to the SELECT pin with a diode the Key Lock Switch is opened ...

Page 18: ...K key n If any incorrect key is entered repeat entire sequence If the password is forgotten press SOS The NT93403 05X will change the password to a default value of 000 Password Lock Setting Available only when COL2 is not connected to the SELECT pin by a diode i e Key Lock Switch is opened 1 Press the PASSWORD key 2 Press the LOCK key Changing the setting to FREE mode from PASSWORD LOCK mode 1 Pr...

Page 19: ...ng is restricted XYZ one set of numbers if the first three digits of the number dialed match XYZ dialing is restricted X Y two sets of numbers if the first digit of the number dialed matches X or Y dialing is restricted X YZ or XY Z two sets of numbers one set defined by the first digit and the other by first two digits Note When restriction codes are defined the first digit of each must be differ...

Page 20: ...0ms 60ms 60ms 60ms 60ms n The LCD will show Error n If the message Error is shown for more than 10 seconds the display will automatically return to CLOCK mode RESET n Full Reset During power on or when RESET is high all registers and temporary areas will be cleared The phone number in memory will be cleared and all pin selection options will be initialized n Partial reset function is provided If u...

Page 21: ...he handset 2 The SPEAKER will turn off Speaker Mode Diagram ON HOOK OFF LINE SPK OFF PRESS SPK KEY PRESS SPK KEY ON HOOK ON LINE SPK ON PHONE GOES ON HOOK PHONE GOES OFF HOOK ON HOOK ON LINE SPK OFF PRESS SPK KEY OFF HOOK ON LINE SPK ON PHONE GOES OFF HOOK PHONE GOES ON HOOK PRESS SPK KEY NOTE SPK SPEAKER HS INPUT PIN HIGH HS INPUT PIN LOW PHONE GOES ON HOOK PHONE GOES OFF HOOK SPKCTL OUTPUT PIN L...

Page 22: ...nput pins COL1 COL5 HS These pins are internally pulled high except for STOPDET The NT93403 05X I O pins can be configured as either input or output pins When configured as output pins they are pulled high through the MOS When they are configured as input pins the pulled up CMOS can be either enabled or disabled 1 2 3 1 2 3 3 1 2 1 2 3 I P PIN 2 1 OUTPUT DATA I O CONTROL INPUT DATA I O control hig...

Page 23: ... or X2 OPEN n Crystal Clock Operation OSC1 OSC2 76 77 R XTL1 C C X1 X2 14 15 XTL2 C C XTL1 3 5795MHz Crystal Oscillator or Ceramic resonator Oscillator XTL2 32 768KHz Crystal Oscillator R 1M ohm approx C 20pF is recommended n Layout of Oscillator Circuit GND OSC2 OSC1 RESET VDD X1 X2 GND ...

Page 24: ...al operation of this device at these or any other conditions above those indicated in the operational sections of this specification is not implied or intended Exposure to the absolute maximum rating conditions for extended periods may affect device reliability DC Electrical Characteristics VDD 5 0V Symbol Parameter Pin Min Typ Max Unit Conditions VDD Power Supply Voltage VDD 2 5 5 5 V IOP Current...

Page 25: ...put Amplitude TONE 810 mVp p Rload 10KΩ VOR Single Row Output Amplitude TONE 630 mVp p Rload 10KΩ Dtone Tone Output Distortion TONE 3 Rtone Tone Output Resistance TONE 1K Ω Rpull Pull up Resistance HS COL1 COL5 200K Ω Note STOP mode Off line state with no operation Frequency Tolerance of Output Tones for DTMF Signaling Row Column Standard Frequency Hz NT93403 05X Hz Deviation ROW1 697 696 9 0 01 R...

Page 26: ...SET 20 msec twch Clock High Pulse Width OSC1 120 msec External Clock twcl Clock Low Pulse Width OSC1 120 msec External Clock Timing Waveforms 1 Pulse Dialing Timing CONNECT LINE DISCONNECT IDP MAKE BREAK MAKE BREAK Td MUTE XMUTE PULSEOUT 1 10 PPS 40 60 Symbol Min Typ Max Unit IDP 800 msec MAKE 40 msec BREAK 60 msec Td 30 µsec 2 10 PPS 33 67 Symbol Min Typ Max Unit IDP 800 msec MAKE 33 msec BREAK 6...

Page 27: ...c BREAK 30 msec Td 30 µsec 4 20 PPS 33 67 Symbol Min Typ Max Unit IDP 500 msec MAKE 17 msec BREAK 33 msec Td 30 µsec 2 DTMF Timing TONE DTMF MUTE XMUTE CONNECT LINE DISCONNECT Tdd TDTMF IDP TDTMF IDP IDP1 Symbol Min Typ Max Unit IDP1 500 msec IDP 98 msec TDTMF 98 msec Tdd 30 µsec ...

Page 28: ... PULSEOUT Symbol Min Typ Max Unit IDP 200 msec TFLASH msec Tfd 30 µsec 90 100 200 300 400 500 600 700 800 900 4 Normal Dialing Timing KEYIN CONNECT LINE DISCONNECT 3 1 2 TO NE 9 TDTMF TP PAUSE TIME 1 5 sec IDP IDP IDP BREAK MAKE PULSEOUT DTMF XMUTE MUTE TONEOUT ...

Page 29: ...h Dialing TONE Mode KEYIN CONNECT LINE DISCONNECT 10 PULSEOUT DTMF XMUTE MUTE TONEOUT IDP IDP TDTMF IDP1 6 Restricted Dialing Timing DTMF Restricted number 01 KEYIN CONNECT LINE DISCONNECT DTMF XMUTE MUTE 0 1 IDP TDTMF PULSEOUT ...

Page 30: ...CT HOLD KEY T HOLDIN ACTIVE T 300 msec ON HOOK OFF HOOK ON HOOK OFF HOOK ON HOOK OFF HOOK ON HOOK ROW5 HOLDOUT COL1 HOLDIN XMUTE PULSEOUT MUTE LCD HOLD INDICATOR OFF BLINK OFF BLINK OFF BLINK OFF A dashed line occurs when the handset is off hook during HOLDIN active ...

Page 31: ...T93403 05X 31 8 Hold Function Timing 2 SPK KEY CONNECT LINE DISCONNECT SPKCTL T HOLDIN ACTIVE T 300 msec HOLD KEY COL1 HOLDIN MUTE ROW5 HOLDOUT PULSEOUT XMUTE SPK ON SPK OFF SPK ON SPK OFF SPK ON SPK OFF ...

Page 32: ...05X 32 9 Mute Function Timing HS CONNECT LINE DISCONNECT MUTE KEY XMUTE SPK KEY CONNECT LINE DISCONNECT SPLCTL XMUTE MUTE KEY LCD SPEAKER INDICATOR OFF BLINK OFF LCD SPEAKER INDICATOR OFF ON BLINK ON BLINK OFF ...

Page 33: ...NT93403 05X 33 10 HS and SPKCTL Timing SPEAKER KEY HS CONNECT LINE DISCONNECT SPKCTL ON HOOK OFF 11 Line Key Timing HS CONNECT LINE DISCONNECT KEYIN DTMF PULSEOUT MUTE XMUTE 1 2 1 LD 2 Td 2 3sec ...

Page 34: ...NT93403 05X 34 n NT93403 05X Interface Application Circuits for reference only n Line Control Power Supply and Reset Circuits n Hold Application Circuit ...

Page 35: ... 62 53 54 55 56 57 TONEOUT SELECT NC SPKCTL NC NC NC NC NC X1 X2 GND NC NC NC SEG31 SEG30 SEG29 SEG28 SEG27 SEG26 SEG25 SEG24 SEG23 SEG22 SEG21 SEG20 SEG19 SEG18 SEG17 SEG16 SEG15 SEG14 SEG11 SEG12 ROW4 NC ROW3 ROW2 XMUTE MUTE SEG13 NC COL5 COL3 COL2 COL1 HOLDIN ROW6 ROW5 HOLDOUT HS ROW1 SEG1 SEG2 SEG3 SEG4 SEG5 SEG6 SEG7 SEG8 SEG9 SEG10 PULSEOUT NC NC NC RESET OSC2 OSC1 VDD COL4 TONE TEST NC NC V...

Page 36: ...5 8 36 SEG4 336 1235 8 37 SEG5 448 1235 8 38 SEG6 560 1235 8 39 SEG7 681 1234 8 40 SEG8 811 1234 8 Pad No Designation X Y 41 SEG9 941 1234 8 42 SEG10 1071 1234 8 43 SEG11 1194 5 1234 8 44 SEG12 1212 8 1091 45 SEG13 1212 8 961 46 SEG14 1212 8 831 47 SEG15 1212 8 701 48 SEG16 1212 8 571 49 SEG17 1213 8 450 50 SEG18 1213 8 338 51 SEG19 1213 8 226 52 SEG20 1213 8 114 53 SEG21 1213 8 2 54 SEG22 1213 8 ...

Page 37: ...NT93403 05X 37 Ordering Information Part No Package NT93403F 05X CHIP ...

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