EM91450 Ver la hoja de datos (PDF) - ELAN Microelectronics

Número de pieza

componentes Descripción

Fabricante

EM91450

TONE/PULSE DIALER WITH LCD INTERFACE AND I.P.P. DETECT FUNCTION

ELAN Microelectronics 

EM91450 SERIES

TONE/PULSE DIALER WITH LCD INTERFACE

AND I.P.P. DETECT FUNCTION

HKS

KEY IN

KT

SDO

2

Tdb

SB 0 b0 b1 b2 b3 b4 b5 SPB SPB

SB

Tbit

0 1 0 1 0 0 00 0 1

L

M

Hi-impedance

<Note>L=Least significant bit,M=Most significant bit, SB=START bit , SPT=STOP bit

Figure 8. SDO operating timing

HKS

KEY IN

HFO

HDO

XMUTE

SDO

PO

HF HD HF HD

HD

HD HF HD

HD @

93

Thdrdb

ms

MELODY

@ : It can be triggled by extension telephone set for hold function release

Figure 9. HF and HD operating timing

Hi-impedance

HFI

or

HKS

KEY

KT

OSC.

SDO

HF

5

Tdly

0

"0" digit dialing time

Figure 10. Off-Hook delay time

* This specification are subject to be changed without notice.

Hi-impedance

2.10.1999 16

Share Link: