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UPD30121 Datasheet 64-/32-bit Microprocessor

Manufacturer: NEC (now Renesas Electronics)

Overview: DATA SHEET MOS INTEGRATED CIRCUIT µPD30121 VR4121 64-/32-BIT MICROPROCESSOR TM The µPD30121 (VR4121) is one of NEC’s VR SeriesTM RISC (Reduced Instruction Set puter) microprocessors and is a high-performance 64-/32-bit microprocessor employing the MIPS TM RISC architecture. The VR4121 uses the high-performance, super power-saving VR4120TM as the CPU core, and has many peripheral functions such as a DMA controller, software modem interface, serial interface, keyboard interface, IrDA interface, touch panel interface, real-time clock, A/D converter, and D/A converter. Configured with these functions, the VR4121 is suitable for high-speed battery-driven portable information systems. The external memory bus width can be selected from 32 bits and 16 bits, realizing high-speed data transfer.

General Description

s are provided in the following user’s manual.

Be sure to read it before designing.

• VR4121 User’s Manual (U13569E) DESCRIPTION

Key Features

  • Employs 64-bit MIPS architecture.
  • Conforms to MIPS III instruction set (deleting FPU, LL, LLD, SC, and SCD instructions).
  • Optimized 6-stage pipeline.
  • Supports MIPS16 instruction set.
  • Supports high-speed product-sum operation instructions.
  • Supports four types of operating modes, enabling more effective power-consumption management.
  • Internal maximum operating frequency: 131/168 MHz.
  • On-chip clock generator.
  • Address s.

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UPD30121 Distributor