UPD70325L-8 datasheet, PDF - EEWORLD Datasheet

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UPD70325L-8: DescriptionV25+TM 16/8-BIT SINGLE-CHIP MICROCONTROLLER; File Size291KB，80 Pages; ManufacturerNEC ( Renesas ); Websitehttps://www2.renesas.cn/zh-cn/

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UPD70325L-8 Overview

V25+TM 16/8-BIT SINGLE-CHIP MICROCONTROLLER

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DATA SHEET

MOS INTEGRATED CIRCUIT

PD70325

V25+

16/8-BIT SINGLE-CHIP MICROCONTROLLER

The

PD70325 (V25+) is a single-chip microcontroller on which 16-bit CPU, RAM, serial interface, timer, DMA

controller, interrupt controller, etc. are all integrated. The

PD70325 is software compatible with the 16/8-bit single-

chip microcontroller

PD70320 (V25

). The V25+ greatly improves the DMA responsivity and transfer rate compared

to the V25.

FEATURES

•

Software compatible with V25

Software compatible with

PD70108/70116 (in native mode) (some instructions added)

Internal 16-bit architecture and external 8-bit data bus

3-stage pipeline method

Minimum instruction cycle : 250 ns/8 MHz (external 16 MHz)

: 200 ns/10 MHz (external 20 MHz)

Memory space 1 Mbyte

On-chip RAM : 256 words

8 bits

Input port (port T) with comparator : 8 bits

I/O lines (input port : 4 bits, input/output ports : 20 bits)

Serial interface : 2 channels

• Internal dedicated baud rate generator

• Asynchronous mode and I/O interface mode

•

Interrupt controller

• Programmable priority (8 levels)

• 3 types of interrupt response method

Vectored interrupt function, register bank switching function, macro service function

•

DRAM and pseudo SRAM refreshing function

DMA controller : 2 channels

• 4 types of DMA transfer mode

• Transfer rate

Maximum 4 Mbytes/second (when stop control is not executed by DMARQ pin in demand release

mode)

Maximum 2 Mbytes/second (when stop control is executed by DMARQ pin in demand release

mode, or burst mode)

• Address pointer (linear) : 20 bits

• Terminal counter : 16 bits

•

16-bit timer : 2 channels

Time base counter (20 bits) : 1 channel

On-chip clock generator

Programmable wait function

Standby function (STOP, HALT)

The information in this document is subject to change without notice.

Document No. U12850EJ7V0DS00 (7th edition)

Date Published November 1997 N

Printed in Japan

The mark

shows major revised points.

1996

1995

UPD70325L-8 Related Products

	UPD70325L-8	UPD70325GJ-8-5BG	UPD70325L-10	UPD70325GJ-10-5BG	UPD70325
Description	V25+TM 16/8-BIT SINGLE-CHIP MICROCONTROLLER	V25+TM 16/8-BIT SINGLE-CHIP MICROCONTROLLER	V25+TM 16/8-BIT SINGLE-CHIP MICROCONTROLLER	V25+TM 16/8-BIT SINGLE-CHIP MICROCONTROLLER	V25+TM 16/8-BIT SINGLE-CHIP MICROCONTROLLER

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