DESCRIPTION

The µPD77115 and µPD77115A are 16-bit fixed-point digital signal processors (DSP). The µPD77115 and µPD77115A are RAM based DSP and have the specific circuit for audio application. Unless otherwise specified, the µPD77115 refers to µPD77115 and 77115A. For details of the functions of the µPD77115, refer to the following User’s Manuals: µPD77111 Family User’s Manual - Architecture : U14623E µPD77016 Family User’s Manual - Instructions : U13116E

FEATURES

• Instruction cycle (operating clock) 13.3 ns MIN. (75 MHz MAX.)

• Memory

• Internal instruction RAM 11.5K words × 32 bits

• Internal data RAM 16K words × 16 bits × 2 banks

• Peripherals

• Audio serial interface

• Secure Digital (SD) card interface

• 16-bit timer

• 16-bit host interface

• 8-bit port

• Supply voltage

• DSP core voltage

2.0 to 2.7 V (MAX. operation speed 50 MHz)

2.3 to 2.7 V (MAX. operation speed 75 MHz)

• I/O pin voltage

2.7 to 3.6 V

• Power consumption TYP. 50 mW (2.0 V, 50 MHz operation)