*NOS* MACRONIX MX93021 DIGITAL ANSWERING MACHINE PQFP100 528pcs

Description

1.0 GENERAL DESCRIPTIONS
The MX93021 is an engine chip for Digital-Answering-
Machine.
The MX93021 provides functional modules, including
speech compression/decompression, telephone line signal
processing, ROM voice prompt, ARAM management.
Controlled by host, the MX93021 provides the interface
with host , memory , and codec, etc.
The MX93021 is especially suitable for cordless answering
phone or the FAX built-in answering machine function
because the MX93021 supports extend I/O space so as
to reduce the overhead of the host processor.
2.0 FEATURES
• 4.8K bps compression rate.
• Maximum 8 Personal Mail Supports (Separate 63 ICM)
• DTMF generation and detection with near-end echo
cancellation.
• Voice Prompt ROM support
• 8-bit host interface
• ICM management
• Time keeping
• Extended I/O supporting
• Reserve up to 2K words space for data storage