PSB 4860
Overview
For answering machine operation the voice data is stored in ARAM or Flash Memory
devices. In addition, voice prompts can be played back from an optional voice prompt
EPROM. If flash memory is used the functionality of the voice prompt EPROM can be
realized by the flash memory devices. The microcontroller can use the memory attached
to the PSB 4860/PSB 4851 to store and retrieve binary data.
PSB 4860
PSB 4851
tip/
ring
line
077-3445
Microcontroller
ARAM
Flash Memory
Voice Prompt
EPROM
Figure 4 Analog Full Duplex Speakerphone with Digital Answering Machine
Semiconductor Group
20
10.97