UPD70320 NEC, UPD70320 Datasheet
UPD70320
Manufacturer Part Number
UPD70320
Description
V25TM 16/8-BIT SINGLE-CHIP MICROCONTROLLER
Manufacturer
NEC
Datasheet
1.UPD70320.pdf
(74 pages)
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Document No. U10090EJ8V0DS00 (8th edition)
Date Published November 1997 N
Printed in Japan
controller, interrupt controller, etc. are all integrated. The PD70320 is compatible with the 8/16-bit microprocessor
design.
FEATURES
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PD70108/ 70116 (V20
The PD70320 (V25) is a single-chip microcontroller on which 16-bit CPU, RAM, serial interface, timer, DMA
The details of the functions are described in the following User's Manuals. Be sure to read it before starting
Internal 16-bit architecture and external 8-bit data bus
Compatible with PD70108/ 70116 (in native mode) on software level (some instructions added)
Minimum instruction cycle : 400 ns/5 MHz ( PD70320)
On-chip RAM : 256 words
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)
• V25, V35
• V25, V35 Family User's Manual — Instructions : U12120J (Japanese version)
TM
16/8-BIT SINGLE-CHIP MICROCONTROLLER
/V30
TM
The information in this document is subject to change without notice.
User's Manual — Hardware
TM
250 ns/8 MHz ( PD70320-8)
8 bits
) on the software level.
The mark
DATA SHEET
shows major revised points.
V25
TM
MOS INTEGRATED CIRCUIT
: IEM-1220
PD70320
©
1996
1995
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