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UPD70433 Datasheet(PDF) 1 Page - NEC |
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UPD70433 Datasheet(HTML) 1 Page - NEC |
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1 / 166 page  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. The V55PI is software-compatible with the µPD70320 and 70330 (V25TM and V35TM) single-chip microcontrollers. The V55PI provides a migration path from the V25. It offers higher-level functions and higher performance, and is particularly suitable for control of data processing systems associated with mechanical control, including printer and facsimile. Detailed functions are described in the following user’s manuals, which should be read when carrying out design work. • V55PI User’s Manual Hardware : U10514E • V55PI User’s Manual Instruction : U10231E 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 : 64K bytes • Automatic wait control with memory space divided in variable sizes (max. 6 blocks) • I/O line (input ports: 11 bits, input/output ports: 42 bits) • DMA controller (DMAC): Max. 4-channel configuration possible • Four DMA transfer modes (single transfer, demand release, single step, burst) • Intelligent DMA modes 1 and 2 • Serial interface: 2 channels • Asynchronous mode (UART) or clocked mode (CSI) selectable • Parallel interface: 8 bits • Centronics data input/output and general-purpose data input/output • A/D converter (8 bits): 4 channels • Real-time output port: 4 bits × 2 channels or 8 bits × 1 channel • PMW (Pulse Width Modulation) output function : 8 bits DESCRIPTION MOS INTEGRATED CIRCUIT µPD70433 V55PITM 16-BIT MICROPROCESSOR Document No. U11775EJ4V0DS00 (4th edition) Previous No. IC-8257 Date Published November 1996 P Printed in Japan © 1995 DATA SHEET The information in this document is subject to change without notice. The mark shows major revised points. |
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