EM91886A Просмотр технического описания (PDF) - ELAN Microelectronics

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EM91886A

CMOS SINGLE SHIP TELEPHONE WITH LOCK, SPEAKERPHONE, HOLD MELODY AND LCD INTERFACE

ELAN Microelectronics 






 


 





 





XIN XOUT

Clock

Generator

/HKS HFI

C1/IPP~C5

R1~R4

Keyboard

Interface

and

R-option

Control Logic

SRAM

Memory

Output Circuit

Pulse

Generator





 HDO HFO /XMUTE

PO

Volume control

Mute

2-to-4 Wire

Speech

Network &

Speakerphone

DTMFO/MLDA



     





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