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UPD78323GJ(A1)-5BJ

16/8-BIT SINGLE-CHIP MICROCONTROLLER

NEC => Renesas Technology 

DATA SHEET

MOS INTEGRATED CIRCUIT

µPD78323,78324

16/8-BIT SINGLE-CHIP MICROCONTROLLER

DESCRIPTION

The µPD78324 is a 16/8-bit single-chip microcontroller that incorporates a high-performance 16-bit CPU. The µPD78324

is one of 78K/III series. The internal capacity is significantly increased compared with the conventional µPD78322.

A realtime pulse unit for realtime pulse control required in motor control, an A/D converter, a ROM, and a RAM have been

integrated into one chip.

The µPD78324 incorporates 32K-byte mask ROM and 1024-byte RAM.

The µPD78323 is a ROM-less version of the µPD78324. Also, It is provided the µPD78P324 as an on-chip PROM

product.

Detailed information about product features and specifications can be found in the following document.

µPD78322 User’s Manual : IEU-1248

FEATURES

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

• High-speed processing by pipeline control and instruction prefetch

• Minimum instruction execution time: 250 ns (with 16 MHz external clock in operation)

• Instruction set suitable for control operations (µPD78312 upward compatible)

• Multiply/divide instructions (16 bits × 16 bits, 32 bits ÷ 16 bits)

• Bit manipulation instruction

• String instruction, etc.

• On-chip high-function interrupt controller

• 3-level priority specifiable

• 3-type interrupt processing mode selectable

(Vectored interrupt function, context switching function, and macro service function)

• Variety of peripheral hardware

• Realtime pulse unit

• 8-channel, 10-bit A/D converter

• Watchdog timer

• Powerful serial interface (with an on-chip dedicated baud rate generator)

• UART

····· 1 channel

• SBI (NEC Standard Serial Bus Interface)

• 3-wire serial I/O

····· 1 channel

APPLICATIONS

• Motor control devices

Unless there are any particular diferences, the µPD78324 is described as the representative model in this document.

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

Document No. U10456EJ4V0DS00 (4th edition)

(Previous No. IC-2870)

Date Published November 1995 P

Printed in Japan

The mark shows major revised points.

©

1991

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