CONTENTS

 

CHAPTER 1. GENERAL

1

1.1

OUTLINE OF FUNCTIONS

2

1.2

ORDERING INFORMATION AND QUALITY GRADE

3

1.3

DIFFERENCES BETWEEN μPD75402A AND μPD75402, 75P402

4

1.4

BLOCK DIAGRAM

5

1.5

PIN CONFIGURATION

6

 

1.5.1

28-Pin Plastic DIP (600 mil), Shrink DIP (400 mil)

6

 

1.5.2

44-Pin Plastic QFP ( ■ 10 mm)

8

CHAPTER 2. PIN FUNCTIONS

10

2.1

μPD75402A PIN FUNCTION LIST

11

 

2.1.1

Port Pin List

11

 

2.1.2

List of Pins Other than Port Pins

12

2.2

NORMAL OPERATING MODE

13

 

2.2.1

P00 to P03 (Port 0), P10, P12 (Port 1)

13

 

2.2.2

P20 to P23 (Port 2), P30 to P33 (Port 3), P50 to P53 (Port 5), P60 to P63 (Port 6)

14

 

 

 

 

 

 

 

 

 

 

 

2.2.3

SCK, SO/SB0, SI

14

 

2.2.4

INT0

14

 

2.2.5

INT2

14

 

2.2.6

PCL

14

 

2.2.7

X1, X2

15

 

2.2.8

 

 

 

 

 

15

 

RESET

................................................................................................................................(Reset)

 

2.2.9

VDD

15

 

2.2.10

VSS

15

2.3

PROM MODE

16

 

2.3.1

A0 to A14 (Address)

16

 

2.3.2

O0 to O7 (Data)

16

 

2.3.3

 

(Chip Enable)

16

 

CE

 

 

2.3.4

 

 

 

16

 

OE

.......................................................................................................................(Output Enable)

 

2.3.5

VPP

16

 

2.3.6

VDD

16

 

2.3.7

VSS

16

2.4

PIN INPUT/OUTPUT CIRCUITS

17

2.5

UNUSED PIN TREATMENT

20

 

 

 

 

 

2.6

NOTES ON USE OF P00 PIN AND RESET PIN

20

CHAPTER 3. FEATURES OF ARCHITECTURE AND MEMORY MAP

21

3.1

DATA MEMORY BANK CONFIGURATION AND ADDRESSING MODES

21

 

3.1.1

Data Memory Bank Configuration

21

 

3.1.2

Data Memory Addressing Modes

24

3.2

MEMORY-MAPPED I/O

28

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NEC PD75P402, PD75402A user manual Contents