Sony CXP5086, CXP5084 Datasheet

CMOS 4-bit Single Chip Microcomputer

Description

The CXP5084/5086 is a CMOS 4-bit microcomputer
which consists of 4-bit CPU, ROM, RAM, I/O port,
8-bit timer, 8-bit timer/counter, 18-bit time base timer,
8-bit serial I/O, vector interruption, power on reset
function and a liquid crystal displayer (LCD) controller/
driver. They are integrated into a single clip with the
standby function etc. which are to be operated at low
power consumption.

Features

• Instruction cycle 3.8µs/4.19MHz

1.9µs/4.19MHz
(High speed version)

• ROM capacity 4096 × 8 bits (CXP5084)

6144 × 8 bits (CXP5086)

• RAM capacity 400 × 4 bits

(Including stack, display area)

• 32 general purpose I/O ports

• LCD controller/driver (Direct drive possible)

— Optional specification of 24, 20 or 16 segment outputs

— 1/2, 1/3, 1/4 duty selectable through program

— 1/3 bias

• 2 external interruption input pins

• 8-bit/4-bit variable serial I/O

• 8-bit timer, 8-bit timer/event counter and 18-bit time

base timer are independently controllable

• Arithmetic and logical operations possible between

the entire RAM area, I/O area and the accumulator

by means of memory mapped I/O

• Reference to the entire ROM area is possible with

the table look-up instruction

• 2 types of power down modes: sleep and stop

• Power on reset circuit (Mask option)

• Available option of either crystal oscillation or CR

oscillation (mask option) types for the oscillation

circuit

• 64-pin plastic SDIP/QFP available

• Piggyback package (CXP5080) available

Structure

Silicon gate CMOS IC

– 1 –

E90377A7Z-PS

Sony reserves the right to change products and specifications without prior notice. This information does not convey any license by
any implication or otherwise under any patents or other right. Application circuits shown, if any, are typical examples illustrating the
operation of the devices. Sony cannot assume responsibility for any problems arising out of the use of these circuits.

CXP5084/5086

64 pin SDIP (Plastic) 64 pin QFP (Plastic)

For the availability of this product, please contact the sales office.

– 2 –

CXP5084/5086

Block Diagram

4

4

ALU

V

L

VLC1

EXTAL

SEG16

to

SEG23

XTAL

V

LC3

VLC2

4

Port FPort D

Accumulator

Flag

Timer (8)

Timer/Counter (8)

Serial I/O (8)

Register

Data memory

Stack

Data memory

Interrupt control

Port EPort CPort BPort A

(Enables to specify
the I/O with bit unit)

(Combines use of mask
with segment output, optional)

(Enable to specify
the I/O with port unit)

Program counter

(13)

6144 × 8 bits

(CXP5086)

Time base timer

(18)

LCD
controller/driver

4096 × 8 bits

(CXP5084)

400 × 4

bits

Program memory

Clock contorl

Instruction control

Port YPort X

(Common with Port E, Port F)

(Common with serial I/O)

8 16 4

4

SEG0

to

SEG15

COM0

to

COM3

PX3/SI

PX2/SOA

PX1/SOB

PX0/SC

PY3/EC

PY2/INT2

PY1

PY0

INT1

V

DD

WP

VSS

RST

– 3 –

CXP5084/5086

Pin Assignment 1 (Top View) 64-pin SDIP Package

Note) Do not make any connection to NC pin.

1
2
3
4
5
6
7
8

9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32

33

34

35

36

37

38

39

40

41

42

43

44

45

46

47

48

49

50

51

52

53

54

55

56

57

58

59

60

61

62

63

64

V

L

XTAL

EXTAL

RST

WP

INT1

PY0
PY1

PY2/INT2

PY3/EC

PX0/SC
PX1/SOB
PX2/SOA

PX3/SI

PD0
PD1
PD2
PD3
PC0
PC1
PC2
PC3

PB0
PB1
PB2
PB3
PA0
PA1
PA2
PA3

NC

V

SS

SEG5
SEG6
SEG7
SEG8
SEG9
SEG10
SEG11
SEG12
SEG13
SEG14
SEG15
SEG16/PF0
SEG17/PF1
SEG18/PF2
SEG19/PF3
SEG20/PE0
SEG21/PE1
SEG22/PE2
SEG23/PE3

VDD
VLC3
VLC2
VLC1
COM0
COM1
COM2
COM3
SEG0
SEG1
SEG2
SEG3
SEG4

– 4 –

CXP5084/5086

Pin Assignment 2 (Top View) 64-pin QFP Package

Note) Do not make any connection to NC pin.

1
2
3
4
5
6
7
8

9
10
11
12
13
14
15
16
17
18
19

20 21 22 23 24 25 26 27 28 29 30 31 32

33

34

35

36

37

38

39

40

41

42

43

44

45

46

47

48

49

50

51

52535455565758596061626364

PY0
PY1

PY2/INT2

PY3/EC

PX0/SC
PX1/SOB
PX2/SOA

PX3/SI

PD0
PD1
PD2
PD3
PC0
PC1
PC2
PC3
PB0
PB1
PB2

PB3

PA0

PA1

PA2

PA3

V

SS

NC

SEG23/PE3

SEG22/PE2

SEG21/PE1

SEG20/PE0

SEG19/PF3

SEG18/PF2

INT1

WP

RST

EXTAL

XTAL

V

L

VDD

VLC3

VLC2

VLC1

COM0

COM1

COM2

COM3
SEG0
SEG1
SEG2
SEG3
SEG4
SEG5
SEG6
SEG7
SEG8
SEG9
SEG10
SEG11
SEG12
SEG13
SEG14
SEG15
SEG16/PF0
SEG17/PF1