DataSheetWiki


LC72701M fiches techniques PDF

Sanyo Semicon Device - Serial Interface Dialler

Numéro de référence LC72701M
Description Serial Interface Dialler
Fabricant Sanyo Semicon Device 
Logo Sanyo Semicon Device 





1 Page

No Preview Available !





LC72701M fiche technique
No. 5561
CMOS LSI
LC73701M
Serial Interface Dialler
Overview
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.
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 pulse dialer output can be turned on or off
arbitrarily.
• The pulse dialer output circuit can be selected to be
either an n-channel open drain or a complementary
circuit.
• The pulse dialer muting function can be turned on or off
arbitrarily.
• A redial function is provided.
• Flash operation is supported. (Data can be received
during flash operation.)
• The flash time can be switched to be either 277 or 707
ms.
• The pause time can be switched to be either 2 or 4
seconds.
• Hooking pause operation is supported. (1.2 s or 801 ms)
• The dial pulse rate can be specified to be either 10 pps
or 20 pps.
• 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]
SANYO: MFP18
SANYO Electric Co.,Ltd. Semiconductor Bussiness Headquarters
TOKYO OFFICE Tokyo Bldg., 1-10, 1 Chome, Ueno, Taito-ku, TOKYO, 110 JAPAN
53197HA(OT) No. 5561-1/11

PagesPages 11
Télécharger [ LC72701M ]


Fiche technique recommandé

No Description détaillée Fabricant
LC72701M Serial Interface Dialler Sanyo Semicon Device
Sanyo Semicon Device

US18650VTC5A

Lithium-Ion Battery

Sony
Sony
TSPC106

PCI Bus Bridge Memory Controller

ATMEL
ATMEL
TP9380

NPN SILICON RF POWER TRANSISTOR

Advanced Semiconductor
Advanced Semiconductor


www.DataSheetWiki.com    |   2020   |   Contactez-nous  |   Recherche