OKI MSM6404VS, MSM6404A-xxxGS-2K, MSM6404A-xxxGS-K, MSM6404A-xxxRS Datasheet

E2E0013-38-93

This version: Sep. 1998

MSM6404A/6404VS¡ Semiconductor

¡ Semiconductor

Previous version: Mar. 1996

MSM6404A/6404VS

High speed and High performance 4-Bit Microcontroller

GENERAL DESCRIPTION

The MSM6404A microcontroller is a low-power device implemented in complementary metaloxide semiconductor technology. The MSM6404A is optimized for high-speed processing and complicated-control applications. The MSM6404VS is a CMOS 4-bit microcontroller that employs an external EPROM using a piggy-back package in place of the program memory (ROM) internal to the MSM6404A. The MSM6404VS can be used for program development verification because the programs can be modified by programming an external EPROM 2732 equivalent or 2764A equivalent.

FEATURES

• Mask ROM (MSM6404A) : 4000 words ¥ 8 bits External ROM (MSM6404VS) : 8196 words ¥ 8 bits

• RAM (including the stack area) : 256 words ¥ 4 bits

• I/O port

Input-output port : 8 ports ¥ 4 bits

Input port : 1 port ¥ 4 bits 4 bits are for input ports having a latch; the other 32 bits are input/output ports that allow bit manipulation

• Three built-in counters : 12-bit time-base counter 12-bit programmable timer

8-bit high-speed programmable timer/event counter

• Built-in 8-bit serial I/O register (with 3-bit counter)

• Five interrupts with five priority levels (4 internal, 1 external)

• 32 stacks (in RAM)

• Power-down features

• Minimum instruction execution time : 952 ns @ 4.2 MHz clock

• Instruction systems suitable for control

• Fully static operation

• Low power consumption

• Single 5 V supply

• Package options:

MSM6404A

42-pin plastic DIP (DIP42-P-600-2.54) : (Product name : MSM6404A-¥¥¥RS) 44-pin plastic QFP (QFP44-P-910-0.80-K) : (Product name : MSM6404A-¥¥¥GS-K) 44-pin plastic QFP (QFP44-P-910-0.80-2K) : (Product name : MSM6404A-¥¥¥GS-2K)

MSM6404VS

42-pin ceramic piggyback (ADIP42-C-600-2.54) : (Product name : MSM6404VS)

¥¥¥ indicates a code number.

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MSM6404A/6404VS¡ Semiconductor

BLOCK DIAGRAM

MSM6404A

3210P83210P73210P63210P53210P43210P33210P23210P13210

P0

RAM

16 ¥ 16 ¥ 4 bits

DEC

HLSP

12-bit Timer 8-bit T/CP9 8-bit SRPA

C

ALU

ACC

INSTR

DEC

F

PC

PB

0

DEC

ROM

4000 ¥ 8 bits

Timing

&

Control

Interrupt

Control

PC INTE

PD IRQ

12-bit TBC

OSC

0

OSC

1

TEST RESET

V

DD

GND

INT CIN

TMO

TCK

SCK, CTO, CLK

SI

SO

11

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MSM6404A/6404VS¡ Semiconductor

BLOCK DIAGRAM (continued)

MSM6404VS

3210P83210P73210P63210P53210P43210P33210P23210P13210

P0

RAM

16 ¥ 16 ¥ 4 bits

DEC

HLSP

12-bit Timer 8-bit T/CP9 8-bit SRPA

C

ALU

ACC

INSTR

DEC

F

PC

PB

0

Timing

&

Control

Interrupt

Control

PC INTE

PD IRQ

12-bit TBC

OSC

0

OSC

1

TEST RESET

V

DD

GND

INT CIN

TMO

TCK

SCK, CTO, CLK

SI

SO

12

RV

DV

I0 to I

7

A0 to A

12

PIN CONFIGURATION (TOP VIEW)

MSM6404A/6404VS¡ Semiconductor

P4.0

P4.1

P4.2

P4.3

P3.0

P3.1

P3.2

P3.3

OSC

RESET

TEST

P2.0

P2.1

P2.2

P2.3

P0.0 P0.1

P0.2

P0.3

1

2

3

4

5

6

7

8

9

0

10

1

11

12

13

14

15

16

17 18

19

20

21GND P1.022

42

41

40

39

38

37

36

35

34

33 32

31

30

29

28

27

26 25

24

23

V

DD

P5.3

P5.2

P5.1

P5.0

P6.3

P6.2

P6.1

P6.0

P7.3 P7.2

P7.1

P7.0

P8.3

P8.2

P8.1

P8.0 P1.3

P1.2

P1.1

42-Pin Plastic DIP

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PIN CONFIGURATION (TOP VIEW) (continued)

DD

P5.3

38

P5.2

37

P3.0

44

P4.3

43

P4.2

42

P4.1

41

P4.0

40

V

39

P5.1

36

P5.0

35

MSM6404A/6404VS¡ Semiconductor

P6.3

34

P3.1

P3.2

P3.3

OSC

RESET

TEST

P2.0

P2.1

P2.2

P2.3

1

2

3

4

0

5

1

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

P0.0

P0.1

P0.2

P0.3

GND

NC

P1.0

P1.1

P1.2

P1.3

P8.0

33

32

31

30

29

28

27

26

25

24

23

P6.2

P6.1

P6.0

NC

P7.3

P7.2

P7.1

P7.0

P8.3

P8.2

P8.1

NC: No-connection pin

44-Pin Plastic QFP

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PIN CONFIGURATION (TOP VIEW) (continued)

MSM6404A/6404VS¡ Semiconductor

P4.0

P4.1

P4.2

P4.3

P3.0

P3.1

P3.2

P3.3

OSC

RESET

TEST

P2.0/INT

P2.1

P2.2

P2.3

P0.0

P0.1/SCK

P0.2/SO

P0.3/SI

GND

1

2

qVPP/V wA12

DD

V

PGM/V

3

eA7

V

4

rA6

5

tA5

6

yA4

A11@3

7

uA3

OE/GND@2

8

iA2

9

0

oA1

10

1

!0A0

A10@1

CE/GND@0

11

!1I0

12

!2I1

13

!3I2

14

!4GND

15

16

17

18

19

20

21

@8

DD

@7

DD

@6

DD

A8@5 A9@4

I7!9 I6!8 I5!7 I4!6 I3!5

42

41

40

39

38

37

36

35

34

33

32

31

30

29

28

27

26

25

24

23

22

V

DD

P5.3

P5.2

P5.1

P5.0

P6.3

P6.2

P6.1

P6.0

P7.3

P7.2

P7.1

P7.0

P8.3

P8.2

P8.1

P8.0

P1.3 P1.2/TCK P1.1/TMO P1.0/CIN

42-Pin Ceramic Piggyback

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MSM6404A/6404VS¡ Semiconductor

PIN DESCRIPTIONS

Symbol Type Description During reset

P0.0 P0.1/SCK

I/O "1"

P0.2/SO

P0.3/SI P1.0/CIN P1.1/TMO P1.1 is shared with timer output (TMO).

I/O

P1.2/TCK

P1.3 P2.0/INT

P2.1

I

P2.3

P3.0 to 3.3

P4.0 to 4.3

P5.0 to 5.3

P6.0 to 6.3

P7.0 to 7.3

I/O

I/O "0"P8.0 to 8.3

OSC

0

1

I Oscillation

O

P0.1 is shared with serial clock (SCK) input/output.

P0.2 is shared with serial data (SO) output.

P0.3 is shared with serial data (SI) input. P1.0 is shared with counter input (CIN).

P1.2 is shared with timer clock input (TCK).

P2.0 is shared with external interrupt input (INT).

Input port with a latch, built-in pull-up resistorP2.2

—

8-bit output ports (at OPT instruction execution)

—

Crystal connection pins for clock oscillation

"1"

The latch is

reset.

"1"

"0"

waveform

TEST O Pulse output(Test pin for manufacturer)

RESET I

V

DD

—

Input pin for system reset

Power supply voltage pins

GND

Note: 1. The ports except for pins P2.0 to P2.3 are pseudo bidirectional ports.

2. When each port is used for output, the MSM6404A can drive one TTL (one input) and the MSM6404VS can drive one LS TTL (one input).

Upper Pins for MSM6404VS

Symbol Type Description

A0 to A12

I0 to I7 CE/GND

DD

V

DD

GND

PP/VDD

—

—V

O

I

I IOE/GND IPGM/V

Address output

Data input

Chip enable input

Output enable input

Program input

Power supply voltage pins

Programed power supply voltage pin

—

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ABSOLUTE MAXIMUM RATINGS (MSM6404A)

Parameter Symbol Condition Rating Unit

Power Supply Voltage V

Input Voltage V

Output Voltage V

DD

I

O

Ta = 25°C

Ta = 25°C per package

Power Dissipation P

Storage Temperature T

D

STG

Ta = 25°C per output 50 max. mW

— –55 to +150 °C

RECOMMENDED OPERATING CONDITIONS (MSM6404A)

Parameter Symbol Condition Range Unit

f

£ 1 MHz 3 to 6 V

Power Supply Voltage V

Data-Hold Voltage V

Operating Temperature T

Fan Out N

DD

DDH

op

OSC

£ 4.2 MHz

OSC

= 0 Hz

OSC

MOS load

TTL load 1

MSM6404A/6404VS¡ Semiconductor

–0.3 to +7 V

–0.3 to V

200 max. mW

4.5 to 5.5 Vf

–40 to +85 °C—

DD

2 to 6 Vf

15

V

—

Note: Refer to the f

relation-ship between power supply voltage and operating frequency.

OSC-VDD

characteristic in OPERATING CHARACTERISTICS for the

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