EM91865 Ver la hoja de datos (PDF) - ELAN Microelectronics
Número de pieza
componentes Descripción
Fabricante
EM91865
ELAN Microelectronics
EM91865 Datasheet PDF : 20 Pages
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OPERATING FLOW CHART
EM91865
13 MEMORY TONE/PULSE DIALER WITH HF, HD, REDIAL
AND VOLUME CONTROL FUNCTION
Preliminary
HF
HF
(1) On_Hook
state
HKS=L
(4)
On_Hook
HF
state
HD
HKS=H
HKS=L
HD
HF
(3)
Off_Hook
HF
HKS=H
HF
HF
(6)
On_Hook
HD
HD
HF
HKS=H
<Note> : HF=Handfree
HKS=L
HD=Hold
Truth Table :
(2)
Off_Hook
state
HD
HD
(5)
Off_Hook
HD
Operating state
(1)On-hook, idle state
(2)Off-hook line
(3)Off-hook, HF line
(4)On-hook, HF line
(5)Off-hook, HD line
(6)On-hook, HD line
HKS
H
L
L
H
L
H
Input / Output pin level
PO
XMUTE
Z
L
Z
L
Z
L
Z
L
Z
H
Z
H
HFO
L
L
H
H
L
L
Note : Z= floating (high impedance) ; H= logic "High" ; L= logic "Low" level.
@ = To doing R-option
HDO
L
L
L
L
H
H
* This specification are subject to be changed without notice.
4.28.1999 8
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