MYSON MTU410 Datasheet

MYSON
TECHNOLOGY

MTU410

4-Bit Micro-Controller with LCD Driver, 1K Word

FEATURES

• Very low current dissipation.

• Wide operating voltage range.

• Supports both Ag and Li batteries.

• Powerful instruction set.

• 4-level subroutine nesting (including interrupt).

• 4 event driven interrupts, 2 external and 2 internal.

• ROM size: 1024 x 15 bits.

• RAM size: 64 x 4 bits.

• Input ports: 2 ports/ 8 pins (S and M).

• Output port: 1 port/ 4 pins (P).

• Pseudo serial output port (P).

• Input/output ports: 2 ports/ 8 pins (I/OA and I/OB).

• Control outputs: ALARM, LIGHT.

• LCD driver outputs (can drive up to 75 LCD segments).

• Mask option to select 4 LCD drive modes: static, duplex (1/2 duty 1/2 bias, 1/3 duty 1/2 bias

or 1/3 duty 1/3 bias).

• Mask option permits LCD driver output pins to be used for DC output ports; up to 25 pins are available.

• Segment PLA circuit permits any layout on LCD panel.

• Built-in clock generator (crystal or RC).

• Built-in voltage doubler, halver, tripler.

GENERAL DESCRIPTION

The MTU410 is a single chip 4-bit microcontroller with LCD drivers. It can drive up to 3 common times or 25
segments, i.e. a 75-segment LCD driver. This 4-bit microcontroller contains a 4-bit parallel processing ALU,
1024 x 15-bit program ROM, 64 x 4-bit data RAM, input/output ports, alarm driver, timer, clock generator,
crystal and RC oscillator circuit, LCD driver and 79 powerful instructions in a single chip. The HALT instruction
can be used to stop all internal operations other than timer, clock generator, crystal/RC oscillator and LCD
driver. Very low current dissipation can be easily achieved by combining 4 kinds of interrupt functions and HALT
instruction to minimize the operation cycle.

This datasheet contains new product information. Myson Technology reserves the rights to modify the product specification without notice.
No liability is assumed as a result of the use of this product. No rights under any pat ent accompany the sale of the produc t .

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MTU410 Revision 2.7 04/28/1998

MYSON
TECHNOLOGY

BLOCK DIAGRAM

I/O

A1~4

BIDIRECTION

I/O PORT

OSC

IN
OSC
OUT

CUP 1
CUP 2

I/O

B1~4

OSCILLATOR

PREDIVIDER

P1~4

OUTPUT

PORT

ALARM

S1~4

LIGHT

6-BIT PRESET

TIMER

CONTROL

CIRCUIT

INPUT

PORT

4-BIT DATA BUS

COM 1~3M1~4

ALU

10-BIT PROGRAM

COUNTER

SEG1~25

LCD DRIVER

SEGMENT PLA

RAM 64 X 4 BITS

INSTRUCTION

MTU410

VSS1~3

DECODER

RESET

1.0 PACKAGE & CHIP INFORMATION

Chip size 3245um X 2325um
Pad open 90um X 90um
Pad pitch min. 160um

20

30

INT

4-LEVEL STACK

Pad No. 1

PROM

1024 X 15-BIT

10

40

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50

60

MTU410 Revision 2.6 04/28/1998

MYSON
TECHNOLOGY

2.0 PIN/PAD ASSIGNMENT

Unit : um

Pad Name Coordinate Pad Name Coordinate

No. X Y No. X Y

1 VDD 3118 1010 33 OSCIN 50 1170
2 GND 3087 1170 34 CAP 50 1010
3 VSS1 3113 1330 35 OSCOUT 50 850
4 VSSO 3118 1490 36 COM1 50 690
5 VSS2 3118 1650 37 SEG1 50 530
6 ALARM 3118 1810 38 SEG2 50 370
7 LIGHT 3118 1970 39 SEG3 50 210
8 S4 3118 2196 40 SEG4 50 50

9 S3 2935 2196 41 SEG5 210 50
10 IOA1 2775 2196 42 SEG6 370 50
11 IOA2 2615 2196 43 SEG7 530 50
12 IOA3 2455 2196 44 SEG8 690 50
13 IOA4 2295 2196 45 SEG9 850 50
14 IOB1 2135 2196 46 SEG10 1010 50
15 IOB2 1975 2196 47 SEG11 1170 50
16 IOB3 1815 2196 48 SEG12 1330 50
17 IOB4 1655 2196 49 SEG13 1490 50
18 RESET 1495 2196 50 SEG14 1650 50
19 INT 1335 2196 51 SEG15 1810 50
20 P1 1175 2196 52 SEG16 1970 50
21 P2 1015 2196 53 SEG17 2130 50
22 P3 855 2196 54 SEG18 2290 50
23 P4 695 2196 55 SEG19 2450 50
24 M1 535 2196 56 SEG20 2610 50
25 M2 375 2196 57 SEG21 2770 50
26 M3 215 2196 58 SEG22 2930 50
27 M4 50 2196 59 SEG23 3118 50
28 TESTA 50 1970 60 SEG24 3118 210
29 CUP1 50 1810 61 SEG25 3118 370
30 CUP2 50 1650 62 COM3 3118 530
31 S2 50 1490 63 COM2 3118 690
32 S1 50 1330 64 VSS3 3118 850

MTU410

*Note: The substrate must connect to VDD.

MTU410 Revision 2.6 04/28/1998

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