DESCRIPTION

The µPD77110, 77111, and 77112 are 16-bit fixed-point digital signal processors (DSPs).

Compared with the µPD77016 family, these DSPs have improved power consumption and are ideal for battery powered mobile terminals such as PDAs and cellular phones.

Both mask ROM and RAM models are available.

For details of the functions of these DSPs, refer to the following User’s Manuals:

µPD77111 Family User’s Manual : To be available soon

µPD7701X Family User’s Manual - Instructions: U13116E

FEATURES

 Instruction cycle (operating clock)

   µPD77110: 15.3 ns MIN (65 MHz MAX)

                  13.3 ns MIN (75 MHz MAX) (Operating voltage and ambient temperature are limited.)

   µPD77111: 13.3 ns MIN (75 MHz MAX)

   µPD77112: 13.3 ns MIN (75 MHz MAX)

 Memory

   • Internal instruction memory

      µPD77110: RAM 35.5K words × 32 bits

      µPD77111: RAM 1K words × 32 bits

                     Mask ROM 31.75K words × 32 bits

      µPD77112: RAM 1K words × 32 bits

                     Mask ROM 31.75K words × 32 bits

    • Data memory

      µPD77110: RAM 24K words × 16 bits × 2 banks

                     External memory space 32K words × 16 bits × 2 banks

      µPD77111: RAM 3K words × 16 bits × 2 banks

                     Mask ROM 16K words × 16 bits × 2 banks

      µPD77112: RAM 3K words × 16 bits × 2 banks

                     Mask ROM 16K words × 16 bits × 2 banks

                     External memory space 16K words × 16 bits × 2 banks