Description
The µPD70433 (V55PI) is a microprocessor in which a 16-bit CPU, RAM, serial interface, parallel interface, A/D converter, timers, DMA controller, interrupt controller, etc., are integrated in a single chip.
Features
- Internal 16-bit architecture, selectable external data bus width (16/8 bits).
- Software compatible with V20TM and V30TM (native mode) and V25 and V35 (includes additional instructions).
- Minimum instruction cycle: 160 ns/12.5 MHz (external 25 MHz) 125 ns/16 MHz (external 32 MHz).
- Address space: 16M bytes: 1-Mbyte basic memory space 16-Mbyte extended memory space.
- Register file space (in on-chip RAM) : 512 bytes/16 register banks.
- I/O space : 6.
UPD70433_NEC.pdf
