GENERAL DESCRIPTION
The MSM6895/MSM6896, developed especially for low-power and multi-function applications in ISDN telephone terminals, are single +5 V power supply CODEC LSI devices. The devices consist of the analog speech paths directly connectable to a handset, the calling circuit directly connectable to a piezosounder, the push-button key scanning interface between push buttons and control processors, the dial tone generator, the B-channel interface, the CODEC, and the processor interface. The functions can be controlled via the 8-bit data bus.

FEATURES
• Single +5 V Power Supply
• Low Power Dissipation
    Power ON Mode : 20 mW Typ. 53 mW Max.
    CODEC Power Down Mode : 10 mW Typ. 21 mW Max.
• In compliance with ITU-T’s companding law
    μ-law : MSM6895
    A-law : MSM6896
• Transmission clocks
    Continuous CLK : 64, 128, 256 kHz
    Burst CLK : 192, 384, 768, 1536, 2048 kHz
• Built-in PLL
• Built-in Reference Voltage Supply
• Ringing Tone : Controlled by processor, 9 modes
• Ringing Tone Combination : Controlled by processor, 6 modes
• Information Tone : Controlled by processor, 9 modes
• Built-in PB Tone Generator
• B-Channel Selectable
• General Latch Output for Speech path Control : 4 bits
• Watchdog Timer : 500 ms
• Key Scanning I/O
    Output : 5 bits
    Input : 8 bits
• Direct Connection to Handset
• Built-in Preamplifier for Loudspeaker
• Handfree Interface
• Digital and Analog Interface for the phone-conference speech paths
• Package:
    80-pin plastic QFP (QFP80-P-1420-0.80-BK) (Product name : MSM6895GS-BK)
                                                                            (Product name : MSM6896GS-BK)