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DATA SHEET

MOS INTEGRATED CIRCUIT

µ

PD78F4046

16-BIT SINGLE-CHIP MICROCONTROLLER

DESCRIPTION

The

µ

PD78F4046 is a product of the

µ

PD784046 Subseries in the 78K/IV Series.

The

µ

PD78F4046 has flash memory in place of the internal ROM of the

µ

PD784046. The incorporation of flash

memory allows a program to be written or erased while mounted on the target board.

Detailed function descriptions are provided in the following user’s manuals. Be sure to read them before

designing.

µ

PD784046 Subseries User’s Manual Hardware: U11515E

78K/IV Series User’s Manual Instruction:

U10905E

FEATURES

•

78K/IV Series

Pin compatible with

µ

PD784044, 784046 (except V

PP

pin)

Flash memory: 64 KB

Internal RAM:

2048 bytes

Operable with the same supply voltage as that of the mask ROM version: V

DD

= 4.5 to 5.5 V

APPLICATIONS

• Water heaters, vending machines, etc.

• FA fields such as robots, automated machine tools, etc.

ORDERING INFORMATION

Part Number

Package

80-pin plastic QFP (14

×

14 mm)

µ

PD78F4046GC-3B9

The information in this document is subject to change without notice. Before using this document, please

confirm that this is the latest version.

Not all devices/types available in every country. Please check with local NEC representative for

availability and additional information.

Document No. U11447EJ2V0DS00 (2nd edition)

Date Published August 2000 N CP(K)

Printed in Japan

The mark

shows major revised points.

©

1996, 2000

µ

PD78F4046

78K/IV SERIES LINEUP

: Products in mass production

: Products under development

Standard models

I

2

C bus supported

Multimaster I

2

C bus supported

µ

PD784038Y

µ

PD784038

Expanded internal memory capacity,

pin compatible with

µ

PD784026

Multimaster I

2

C

bus supported

µ

PD784216Y/

µ

PD784216AY

µ

PD784216/

µ

PD784216A

100 pins, enhanced I/O, expanded

internal memory capacity

µ

PD784225Y

µ

PD784225

80 pins, ROM correction added

µ

PD784026

Enhanced A/D, 16-bit timer,

power management

Multimaster I

2

C bus supported

µ

PD784218Y/

µ

PD784218AY

µ

PD784218/

µ

PD784218A

Expanded internal memory

capacity, ROM correction added

µ

PD784054

µ

PD784046

On-chip 10-bit A/D

ASSP models

µ

PD784967

µ

PD784956A

For DC inverter control

µ

PD784938A

µ

PD784908 with enhanced functions,

expanded internal memory capacity,

ROM correction added

Multimaster I

2

C bus supplied

µ

PD784908

On-chip IEBus

TM

controller

Enhanced functions of the

µ

PD784938A, enhanced

I/O and internal memory

capacity

µ

PD784915

Software servo control,

on-chip analog circuit

for VCR, enhanced timer

µ

PD784928Y

µ

PD784928

µ

PD784915 with enhanced functions

µ

PD784976A

On-chip VFD controller/driver

2

Data Sheet U11447EJ2V0DS00

µ

PD78F4046

OVERVIEW OF FUNCTIONS

Item

Number of basic

instructions (mnemonics)

General-purpose registers

Minimum instruction

execution time

Internal

memory

Memory space

I/O ports

Total

Input

I/O

Pins with

ancillary

pull-up

Note

functions

resistors

Real-time output port

Timers

Flash memory

RAM

113

8 bits

×

16 registers

×

8 banks, or 16 bits

×

8 registers

×

8 banks (memory mapping)

125 ns (@16 MHz operation with internal clock)

64 KB

2048 bytes

1 MB with program/data combined

65

17

48

29

Function

4 bits

×

1

Timer 0:

(16 bits)

Timer 1:

(16 bits)

Timer counter

×

1

Capture/compare register

×

4

Timer counter

×

1

Compare register

×

2

Pulse output

• Toggle output

• Set/reset output

Pulse output

• Toggle output

• Set/reset output

Pulse output

• Toggle output

• PWM/PPG output

Timer/event counter 3: Timer counter

×

1

(16 bits)

Compare register

×

2

Timer 4:

(16 bits)

Timer counter

×

1

Compare register

×

2

Pulse output

• Toggle output

• PWM/PPG output

Pulse output

• Real-time output (4 bits

×

1)

Timer/event counter 2: Timer counter

×

1

(16 bits)

Compare register

×

2

A/D converter

Serial interface

Watchdog timer

Interrupts Sources

Software

Non-maskable

Maskable

10-bit resolution

×

16 channels

UART/IOE (3-wire serial I/O): 2 channels (with baud rate generator)

1 channel

27 (internal: 23, external: 8 (internal/external: 4)) + BRK instruction

BRK instruction

Internal: 1, external: 1

Internal: 22, external: 7 (internal/external: 4)

• 4 programmable priority levels

• 3 service modes: vectored interrupt/macro service/context switching

Bus sizing

Standby

Supply voltage

Package

8-bit/16-bit external data bus width selectable

HALT/STOP/IDLE modes

V

DD

= 4.5 to 5.5 V

80-pin plastic QFP (14

×

14 mm)

Note

The pins with ancillary functions are included in the I/O pins.

Data Sheet U11447EJ2V0DS00

3

µ

PD78F4046

CONTENTS

1. DIFFERENCES AMONG

µ

PD784046 SUBSERIES ........................................................................... 5

2. PIN CONFIGURATION (TOP VIEW) ................................................................................................... 6

3. SYSTEM CONFIGURATION EXAMPLE (AC SERVO MOTOR CONTROL) .................................... 8

4. BLOCK DIAGRAM ...............................................................................................................................9

5. PIN FUNCTIONS ................................................................................................................................ 10

5.1

5.2

5.3

Port Pins .................................................................................................................................................... 10

Non-Port Pins ............................................................................................................................................ 12

Pin I/O Circuits and Recommended Connection of Unused Pins ..................................................... 14

6. INTERNAL MEMORY SIZE SWITCHING REGISTER (IMS) ........................................................... 16

7. FLASH MEMORY PROGRAMMING ................................................................................................. 17

7.1

7.2

7.3

7.4

Selecting Communication Mode ............................................................................................................ 17

Function of Flash Memory Programming ............................................................................................. 18

Connection of Flashpro II and Flashpro III ........................................................................................... 18

Cautions When Writing to Flash Memory ............................................................................................. 19

8. ELECTRICAL SPECIFICATIONS ...................................................................................................... 21

9. PACKAGE DRAWING ........................................................................................................................32

10. RECOMMENDED SOLDERING CONDITIONS ............................................................................... 33

APPENDIX A. DEVELOPMENT TOOLS ................................................................................................34

APPENDIX B. RELATED DOCUMENTS ............................................................................................... 37

4

Data Sheet U11447EJ2V0DS00

µ

PD78F4046

1. DIFFERENCES AMONG

µ

PD784046 SUBSERIES

The only difference between the

µ

PD784044 and

µ

PD784046 is the internal memory capacity.

The

µ

PD78F4046 is a version of the

µ

PD784046 with the internal ROM replaced by flash memory.

The differences are shown in Table 1-1.

Table 1-1. Differences Among

µ

PD784046 Subseries

Part Number

Item

Internal ROM

Internal RAM

Function of pin 57

µ

PD784044

32 KB

(mask ROM)

1024 bytes

MODE

µ

PD784046

64 KB

(mask ROM)

2048 bytes

µ

PD78F4046

64 KB

(flash memory)

MODE/V

PP

Data Sheet U11447EJ2V0DS00

5

UPD78F4046GC-3B9

UPD78F4046GC-3B9概述

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