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參數資料
| 型號： | MTU429B |
| 廠商： | Electronic Theatre Controls, Inc. |
| 英文描述： | 4-Bit Micro-Controller with LCD Dr |
| 中文描述： | 4位微控制器與LCD博士 |
| 文件頁數： | 1/20頁 |
| 文件大?。?/td> | 173K |
| 代理商： | MTU429B |
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 procuts. No rights under any patent accompany the sales of the product.
1/20
MTU429B Revision 3.0 28/Oct/1999
MTU429B
(Preliminary)
MYSON
TECHNOLOGY
4-Bit Micro-Controller with LCD Driver
FEATURES
Low power and low voltage operation.
Powerful instruction set (150 instructions).
Memory capacity.
- Instruction ROM capacity
- Index ROM capacity
- Internal RAM capacity
Input/Output ports of up to 20 pins.
8-level subroutine nesting.
Built-in LCD driver, 8 x 42 = 336 segments.
Built-in EL driver, frequency or melody generator.
Built-in Resistance-to-Frequency Converter.
Built-in 2-channel 6/8-bit PWM output.
Built-in key strobe function.(Shared with segment
pin)
Built-in voltage doubler, halver, tripler quadrupler
charge pump circuit.
Two 6-bit programmable timers with programma-
ble clock source.
Watchdog timer.
4 external & 3 internal interrupt resources.
- External: INT, RFC, IOA/IOC/S port, keystrobe.
- Internal: TM1, TM2, Predivider.
Dual clock operation.
HALT and STOP function.
GENERAL DESCRIPTION
The MTU429B is an embedded high performance
4-bit microcomputer with an on-chip LCD driver. It
contains all the necessary functions in a single chip:
4-bit parallel processing ALU, ROM, RAM, I/O ports,
timer, clock generator, dual clock, RFC, EL-light,
LCD driver, look-up table, watchdog timer and key-
board scanning. The instruction set includes not only
4-bit operation and manipulation instructions but also
various conditional branch instructions and LCD
driver data transfer instructions which are powerful
and easy to use.
The Halt function stops any internal operations
other than the oscillator, divider and LCD driver in
order to minimize the power dissipation.
The Stop function stops all the clocks in the chip.
BLOCK DIAGRAM
4096 x 16 bits.
256 x 8 bits.
384 or 256 x 4 bits.
IOA PORT
/RFC
IOB PORT
/EL, BZ
IOC PORT
/KEY IN
IOD PORT
/PWM
LCD DRIVER
SEGMENT PLA
FREQUENCY
GENERATOR
TABLE ROM
256 X 8
INDEX SRAM
256 X 4
ALU
SRAM
128 X 4
PREDIVIDER
2 X 6 BITS
PRESET TIMER
8-LEVEL STACK
INSTRUCTION
DECODER
WATCHDOG
TIMER
OSCILLATOR
CONTROL
CIRCUIT
MASK ROM
4096 X 16
12-BIT
PROGRAM
COUNTER
PRESETINT
S1~S4
XTIN
XTOUT
CFIN
CFOUT
CUP1
CUP2
CUP3
SEG35~SEG38 SEG31~SEG34 SEG39~SEG42 SEG27~SEG30
...
COM1~8
...................
SEG1~SEG26
VDD1~4
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