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參數資料
| 型號： | W742S82A |
| 廠商： | WINBOND ELECTRONICS CORP |
| 元件分類： | 微控制器/微處理器 |
| 英文描述： | 4-BIT TELEPHONE CONTROLLER |
| 中文描述： | 4-BIT, MROM, 3.58 MHz, MICROCONTROLLER, PQFP80 |
| 封裝： | QFP-80 |
| 文件頁數： | 3/12頁 |
| 文件大小： | 193K |
| 代理商： | W742S82A |
W742S82A DATA SHEET
Publication Release Date: December 2006
- 3 -
Revision A2
2. FEATURES
Connect to 3.58 MHz crystal or 400 KHz that can be selected by option code
Crystal or RC oscillator can be selected by code option
Sub-oscillator
Connect to 32768 Hz crystal only
Memory
16384 x 16 bits program MASK ROM (including 64K x 4 bit look-up table)
2048 x 4 bits 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 (RC)
Input/output ports: 3 ports/12 pins (RA, RB & RD)
High sink current output port for LED driving: 1 port /4 pins (RE)
Port for output only: 1 port/ 4 pins (RF)
Power-down mode
Hold function: no operation (main-oscillator and sub-oscillator still operate)
Stop function: no operation (main-oscillator and sub-oscillator are stopped)
Dual-clock slow operation mode: the system will operate by the sub-oscillator (FOSC = Fs and
Fm is stopped)
Five types of interrupts
Four internal interrupts (Divider0, Divider1, Timer 0, Timer 1)
One external interrupts (RC Port)
Operating voltage: 2.4V – 5.5V
Dual-clock operation or single-clock operation (By option)
Main-oscillator
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