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參數(shù)資料
| 型號(hào)： | W742C810 |
| 廠(chǎng)商： | WINBOND ELECTRONICS CORP |
| 元件分類(lèi)： | 微控制器/微處理器 |
| 英文描述： | 4-BIT MICROCONTROLLER |
| 中文描述： | 4-BIT, MROM, 3.58 MHz, MICROCONTROLLER, PQFP100 |
| 封裝： | 14 X 20 MM, 2.75 MM HEIGHT, QFP-100 |
| 文件頁(yè)數(shù)： | 3/42頁(yè) |
| 文件大小： | 501K |
| 代理商： | W742C810 |
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Preliminary W742C810
Publication Release Date: May 1999
- 3 -
Revision A1
1. GENERAL DESCRIPTION
The W742C810 is a high-performance 4-bit microcontroller (
μ
C) that provides an LCD driver. The
device contains a 4-bit ALU, two 8-bit timers, two dividers (for two oscillators) in dual-clock operation,
a 40
×
4 LCD driver, six 4-bit I/O ports (including 1 output port for LED driving), and one channel
DTMF generator. There are also five interrupt sources and 8-level subroutine nesting for interrupt
applications. The W742C810 operates on very low current and has one power reduction mode, that is
the dual-clock slow operation, which helps to minimize power dissipation.
2. FEATURES
Operating voltage: 2.4V
3.6V
Dual-clock operation
Main oscillator
Connect to 3.58 MHz crystal only
Sub-oscillator
Connect to 32768 Hz crystal only
Memory
8192 x 16 bit program ROM (including 32K x 4 bit look-up table)
1024 x 4 bit data RAM (including 16 nibbles x 16 pages working registers)
40 x 4 LCD data RAM
24 input/output pins
Port for input only: 1 ports/4 pins
Input/output ports: 3 ports/12 pins
High sink current output port for LED driving: 1 port /4 pins
Port for output only: 1 port/ 4 pins
Power-down mode
Hold function: no operation (main oscillator and sub-oscillator still operate)
Stop function: no operation (only main oscillator stops but sub-oscillator still operates)
Dual-clock slow mode: system is operated by the sub-oscillator (F
OSC
= Fs and Fm is stopped)
Five types of interrupts
Four internal interrupts (Divider0, Divider1, Timer 0, Timer 1)
One external interrupt (RC Port)
LCD driver output
40 segments x 4 commons
1/4 duty 1/3 bias driving mode
Clock source should be the sub-oscillator clock in the dual-clock operation mode
MFP output pin
Output is software selectable as modulating or nonmodulating frequency
Works as frequency output specified by Timer 1
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