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UPD70320 Datasheet, PDF (1/74 Pages) NEC – V25TM 16/8-BIT SINGLE-CHIP MICROCONTROLLER | |||
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DATA SHEET
MOS INTEGRATED CIRCUIT
µPD70320
V25TM
16/8-BIT SINGLE-CHIP MICROCONTROLLER
The µPD70320 (V25) is a single-chip microcontroller on which 16-bit CPU, RAM, serial interface, timer, DMA
controller, interrupt controller, etc. are all integrated. The µPD70320 is compatible with the 8/16-bit microprocessor
µPD70108/ 70116 (V20TM/V30TM) on the software level.
The details of the functions are described in the following User's Manuals. Be sure to read it before starting
design.
⢠V25, V35TM User's Manual â Hardware
: IEM-1220
⢠V25, V35 Family User's Manual â Instructions : U12120J (Japanese version)
FEATURES
⢠Internal 16-bit architecture and external 8-bit data bus
⢠Compatible with µPD70108/ 70116 (in native mode) on software level (some instructions added)
⢠Minimum instruction cycle : 400 ns/5 MHz (µPD70320)
250 ns/8 MHz (µPD70320-8)
⢠On-chip RAM : 256 words à 8 bits
⢠Input port (port T) with comparator : 8 bits
⢠I/O lines (input port : 4 bits, input/output port : 20 bits)
⢠Serial interface (internal dedicated baud rate generator) : 2 channels
Asynchronous mode and I/O interface mode
⢠Interrupt controller
⢠Programmable priority (8 levels)
⢠Vectored interrupt function
⢠Register bank switching function
⢠Macro service function
⢠DRAM and pseudo SRAM refreshing functions
⢠DMA controller : 2 channels
⢠16-bit timer : 2 channels
⢠Time base counter
⢠On-chip clock generator
⢠Programmable wait function
⢠Standby function (STOP/HALT)
The information in this document is subject to change without notice.
Document No. U10090EJ8V0DS00 (8th edition)
Date Published November 1997 N
The mark shows major revised points.
Printed in Japan
©
11999965
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