MTU420 Datasheet, PDF (1/11 Pages) List of Unclassifed Manufacturers – 4-Bit Micro-Controller with LCD Driver, 2K Word

MYSON
TECHNOLOGY
MTU420
4-Bit Micro-Controller with LCD Driver, 2K Word
FEATURES
• Wide operating voltage range:
Supply Voltage
4.5V to 5.5V
4V to 5V
2.4V to 3.3V
1.2V to 1.65V
Cycle Time
122µs,280ns
122µs,280ns
122µs,2.2us
122µs
Clock Usage
dual clock
dual clock
dual clock
slow clock only
Remark
Max. 3.58MHz
Max. 3.58MHz
Max. 455KHz
32.768KHz
• 118 instruction sets:
- Binary addition, subtraction, BCD adjustment, logical operation in direct addressing mode and index
addressing mode.
- Single-bit manipulation (set, reset, decision for branch).
- 4-bit input/output.
- Various conditional branches.
- 16 working registers and manipulation.
- LCD driver data transfer.
- Look-up table.
- Programmable option.
- System clock selection.
• 8-level subroutine nesting.
• Interrupt function:
- External factor: 2 (INT pin or ports S, M).
- Internal factor: 2 (timer, divider).
• ROM/RAM capacity:
- ROM capacity . . . . . 2048 x 16 bits.
- RAM capacity . . . . . 128 x 4 bits.
• Watchdog timer.
• Input/Output ports:
- Input ports . . . . . 2 ports/8pins (S, M).
- Output port . . . . . 1 port/4pins (P).
- Pseudo serial output port . . . . . Also used for output port.
- Input/Output ports . . . . . 2 ports/8pins (I/OA, I/OB).
• 2 control outputs . . . . . light, alarm.
• LCD driver output:
- 26 LCD driver outputs (up to 156 LCD segments are drivable).
- Mask option is used to select static ½ duty, ½ bias ½ duty, ½ bias 1/3 duty, ½ bias ¼ duty, 1/3 bias
1/3 duty, ½ bias ¼ duty and 1/3 bias 1/6 duty drive modes of the LCD panel.
- Mask option permits LCD driver output pins to be used for output ports.
- Segment PLA circuit permits any layout on the LCD panel.
• Built-in doubler, halver, tripler.
• One 6-bit timer with programmable option clock.
• 128-byte look-up table for LCD display pattern or 256-nibble look-up table for general purpose.
• Halt function.
• Stop function.
• Dual clock operation.
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 patent accompany the sale of the product.
1/11
MTU420 Revision 2.9 02/17/19981/11