|
|
PDF NT93401-04 Data sheet ( Hoja de datos )
| Número de pieza | NT93401-04 | |
| Descripción | High Feature Phone LSI | |
| Fabricantes | NOVATEK | |
| Logotipo |  |
|
Hay una vista previa y un enlace de descarga de NT93401-04 (archivo pdf) en la parte inferior de esta página. Total 47 Páginas | ||
|
No Preview Available !
NT93401-04
Features
T High feature phone LSI based on a CMOS 4-bit single
chip microcomputer with 4096 x 10 bit ROM and 1024
x 4 bit RAM capacity
T Built-in DTMF generator and on-chip pulse dialer
T Bank key function
T 30 or 40 memory locations by pin selection
T Auto-start watch
T Restriction dialing
T If RESENABL pin is logic low, the restriction number 0
is given
T Chain dialing
T Manual dial as many digits as entered
T Redial function (up to 48 digits)
T One touch auto dialing (up to 30/40 locations and up
to 24/18 digits each)
T Abbreviated auto dialing (up to 30/40 locations and up
to 24/18 digits each)
T Mixture of one touch and abbreviated auto dialing (use
the same memory space)
T Switchable tone and pulse dialing
T Dial speed of 10 pps
T Low battery power detect input
T Make/Break ratio of 40/60 or 33/67 (pin selectable)
T Speaker phone control output
T Key-in tone output
T Bank, auto redial, store, alarm, AM, PM, low battery
hold, and speaker indicators are assigned to their
corresponding LCD display dots
T Manual HOLD key controls HOLDOUT and HOLD
LED signal. The HOLDOUT can be reset by HOLDIN
pin
General Description
NT93401-04 is a CMOS, silicon integrated circuit
designed for high feature phones with a high-precision
dual tone multi-frequency (DTMF) circuit, LCD driver/
controller, and a 32 KHz watch oscillator circuit.
High Feature Phone LSI
T Manual mute key controls XMUTE or MUTE signal.
When mute is active, the speaker indicator is flashing
T Programmable pause time from 1 to 5 seconds. (1 sec
resolution)
Initial pause time is pin selectable (2 or 4 seconds)
T Programmable flash time from 90 to 900 msec. (100
msec resolution)
Initial flash time is pin selectable (90 or 600 msec)
T Programmable auto redial repeating cycle from 1 to 15
times and programmable redial interval from 10 to 60
seconds (10 sec resolution)
Initial auto redial parameters are 10 times and 30
seconds
T Auto redial key for Italy and UK systems
T Search dial function. User can use this function to
search empty or desired memory locations. The
searched phone number can be dialed out directly
T Built-in LCD driver and direct interface with 16-digit
LCD display
T Calendar and real time clock display with 12-hour
format and AM/PM indicator
T Alarm function
T Error display and error beep when key is incorrectly
entered
T 6 x 8 matrix keyboard interface
T Partial reset is possible and phone number memory
will not be cleared
T Operating Voltage Range: 2.5V - 5.5V
The device includes one touch dialing, programmable
pause, flash, auto redial and real time clock function,
and more.
1 V1.0
Free Datasheet http://www.datasheet4u.com/
1 page  
NT93401-04
Pin Description
Pin No.
Symbol
1 XMUTE
2 MODESEL
3 BATDET
4 MBRSEL
5 HSCTL
6 PAUSESEL
7 FLASHSEL
8 RINGDET /HOLDIN
9 TONEDET
10 RESENABL
11 HOLDLED
12 COL8
13 MEMSEL
14 X1
15 X2
16 GND
I/O Description
O XMute Output. Active low when pulse is being dialed.
(See additional description for details.)
I DIAL mode select input
Low: TONE mode. High: PULSE mode
I Battery power detect input
Low: low battery
High: battery ok
If BATDET is not used, this pin can be floating.
I Make/Break ratio select input
Low: 40/60
High: 33/67
O Hook switch control. Normal low. When auto redial function is active,
this pin will go high level for connecting line.
Speaker phone on : high
Speaker phone off : low
HS pin high → low : low
I Initial pause time select pin
Low: 4 sec High: 2 sec
I Initial flash time select pin
Low: 600 msec
High: 90 msec
I Incoming call detect input or hold release detect input. See Additional
Description for details.
I Dial or Busy tone detect input. Normal high. When call progress tone is
detected, this pin must be low level.
I Key lock status input
Low: Key Locked
High: Free
O Hold LED drive pin
0.5 sec on and 0.5 sec off for HOLD mode
I Keyboard interface
I Number of memory location select input:
Low: M1~M40
High: M1~M30
Watch Oscillator input
A 32.768 KHz crystal is used
Ground
5
Free Datasheet http://www.datasheet4u.com/
5 Page 
T Example
Key Sequence
Memory Contents
"STORE" "M01/16" "0" "1" "STORE"
M01=01
"STORE" "BANK" "M01/16" "1" "6" "STORE" M16=16
"STORE" "BANK" "BANK" "M01/16" "1" "6" M01=16
"STORE"
Auto-Start Watch
T Phone goes to off-hook state.
T Enter desired number from keyboard.
T After 6 seconds, the timer display will start
automatically.
Redial
T Phone goes to off-hook state.
T Press "REDIAL" key once, then the number stored in
the redial buffer will be dialed including pause, tone.
T The user can not redial if digits exceed 48. (including
pause, tone) In this case, "FULL" will be displayed on
LCD.
Auto-Redial
T Phone goes to off-hook state.
T Enter desired number from keyboard and press
"REDIAL" key.
or
T Press the "REDIAL" key twice.
T After 30 seconds, the line will be connected
(SPEAKER mode on) and check dial tone.
T When dial tone is detected, phone numbers are
displayed and dialed out.
T If the busy tone is detected, the line will be
disconnected (SPEAKER mode off) and wait 30
seconds (auto redial interval) for next cycle.
NT93401-04
T The auto redial function will be terminated in the
following cases.
1. Phone goes to off-hook manually during auto redial.
2. When receiving incoming calls.
3. After 10 redials are completed.
Dial Restriction
T Digit "0" is the only restriction number.
T If the first digit of the dialed number after off hook
matches the restriction number(0), this chip goes to
the
flash state.
"RESENABL" Pin
T "RESENABL" is used as key lock status input. If pin
"RESENABL" is high (key not locked), no number is
locked. Otherwise, digit "0" is locked.
"HOLD" Key
T Provides HOLD functions. The HOLD function is
implemented by an internal latch whose output pin
"HOLDOUT" can be toggled on the pressing of the
"HOLD" key. The HOLDOUT can be reset to low by
HSCTL going positive or HS going negative. Also, the
HOLDOUT can be reset by HOLDIN. The HOLD LCD
indicator will be displayed and flashing on LCD during
HOLD mode.
T If HOLD mode is on, normal dialing is not permitted.
T If HOLD mode is on, HOLDLED will be flashing.
"FLASH" Key
T A FLASH code will not be stored in the redial buffer if
this key is pressed. But, a FLASH code can be stored
in memory locations. During the execution of FLASH
code the PULSEOUT and MUTE are pulled low for
90~900 ms and then pause for 0.8sec before the next
digit executes. Programmable FLASH time from 90 to
900 msec. (100 msec resolution). Initial FLASH time is
pin selectable (90 or 600 msec).
11
Free Datasheet http://www.datasheet4u.com/
11 Page | ||
| Páginas | Total 47 Páginas | |
| PDF Descargar | [ Datasheet NT93401-04.PDF ] | |
Hoja de datos destacado
| Número de pieza | Descripción | Fabricantes |
| NT93401-04 | High Feature Phone LSI | NOVATEK |
| Número de pieza | Descripción | Fabricantes |
| SLA6805M | High Voltage 3 phase Motor Driver IC. |
 Sanken |
| SDC1742 | 12- and 14-Bit Hybrid Synchro / Resolver-to-Digital Converters. |
 Analog Devices |
|
DataSheet.es es una pagina web que funciona como un repositorio de manuales o hoja de datos de muchos de los productos más populares, |
| DataSheet.es | 2020 | Privacy Policy | Contacto | Buscar |